Spi::Spi(SerialCallback callback) : m_rq(SPI_RECEIVEBUF_SIZE), m_tq(SPI_TRANSMITBUF_SIZE, callback)
{
uint32_t i;
volatile uint32_t d;
SSP_CFG_Type configStruct;
configStruct.CPHA = SSP_CPHA_FIRST;
configStruct.CPOL = SSP_CPOL_HI;
configStruct.ClockRate = 204000000;
configStruct.Databit = SSP_DATABIT_16;
configStruct.Mode = SSP_SLAVE_MODE;
configStruct.FrameFormat = SSP_FRAME_SPI;
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(LPC_SSP1, &configStruct);
// clear receive fifo
for (i=0; i<8; i++)
d = LPC_SSP1->DR;
// Enable SSP peripheral
SSP_Cmd(LPC_SSP1, ENABLE);
SSP_ClearIntPending(LPC_SSP1, SSP_INTCFG_RX);
SSP_IntConfig(LPC_SSP1, SSP_INTCFG_RX, ENABLE);
NVIC_SetPriority(SSP1_IRQn, 0); // high priority interrupt
m_sync = false;
m_recvCounter = 0;
m_lastRecvCounter = 0;
m_syncCounter = 0;
setAutoSlaveSelect(false);
}
//---------------------------------------------------------------------------------------
void SPI_Config()
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_Init(GPIO0, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_Init(GPIO1, &GPIO_InitStructure);
GPIO_WriteBit(GPIO1, GPIO_Pin_10, Bit_SET);
GPIO_WriteBit(GPIO0, GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7, Bit_SET);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_18 | GPIO_Pin_19;
GPIO_Init(GPIO2, &GPIO_InitStructure);
SSP_InitTypeDef SSP_InitStructure;
SSP_InitStructure.SSP_FrameFormat = SSP_FrameFormat_Motorola;
SSP_InitStructure.SSP_Mode = SSP_Mode_Master;
SSP_InitStructure.SSP_CPOL = SSP_CPOL_Low;
SSP_InitStructure.SSP_CPHA = SSP_CPHA_1Edge;
SSP_InitStructure.SSP_DataSize = SSP_DataSize_8b;
SSP_InitStructure.SSP_NSS = SSP_NSS_Soft;
SSP_InitStructure.SSP_ClockRate = 0;
SSP_InitStructure.SSP_ClockPrescaler = 2; /* SSP baud rate : 30 MHz/(4*(2+1))= 2.5MHz */
SSP_Init(SSP0, &SSP_InitStructure);
SSP_Cmd(SSP0, ENABLE);
}
/*******************************************************************************
* Function Name : TP_Init
* Description : TSC2046 Initialization
* Input : None
* Output : None
* Return : None
* Attention : None
*******************************************************************************/
void TP_Init(void)
{
SSP_CFG_Type SSP_ConfigStruct;
/*
* Initialize SPI pin connect
* P2.23 - TP_CS - used as GPIO
* P2.22 - SCK
* P2.26 - MISO
* P2.27 - MOSI
*/
PINSEL_ConfigPin(2, 23, 0);
PINSEL_ConfigPin(2, 22, 2);
PINSEL_ConfigPin(2, 26, 2);
PINSEL_ConfigPin(2, 27, 2);
/* P0.16 CS is output */
GPIO_SetDir(TP_CS_PORT_NUM, (1<<TP_CS_PIN_NUM), 1);
GPIO_SetValue(TP_CS_PORT_NUM, (1<<TP_CS_PIN_NUM));
PINSEL_ConfigPin(2, 11, 0);
GPIO_SetDir(2, (1<<11), 0); /* P2.11 TP_INT is input */
/* initialize SSP configuration structure to default */
SSP_ConfigStructInit(&SSP_ConfigStruct);
SSP_ConfigStruct.ClockRate = 250000;
SSP_ConfigStruct.CPHA = SSP_CPHA_FIRST; //SSP_CPHA_SECOND SSP_CPHA_FIRST
SSP_ConfigStruct.CPOL = SSP_CPOL_HI; //SSP_CPOL_LO SSP_CPOL_HI
/* Initialize SSP peripheral with parameter given in structure above */
SSP_Init(LPC_SSP0, &SSP_ConfigStruct);
/* Enable SSP peripheral */
SSP_Cmd(LPC_SSP0, ENABLE);
}
void ads7843_init(void)
{
SSP_CFG_Type SSP_ConfigStruct;
CONFIG_TS_PENIRQ;
scu_pinmux(0x3,3,MD_PLN_FAST,FUNC2); // P3.3 connected to SCL/SCLK func2=SSP0 SCK0
// scu_pinmux(0x9,0,MD_PLN_FAST,FUNC7); // P9.0 connected to nCS func2=SSP0 SSEL0
scu_pinmux(0x9,0,MD_PLN_FAST | MD_EZI,FUNC0);
GPIO_SetDir(4,1<<12,1);
scu_pinmux(0x3,6,MD_PLN_FAST | MD_EZI,FUNC5); // P3.6 connected to SO func2=SSP0 MISO0
GPIO_SetDir(0,1<<6,0);
scu_pinmux(0x3,7,MD_PLN_FAST ,FUNC5); // P3.7 connected to nSI func2=SSP0 MOSI0
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
SSP_ConfigStruct.ClockRate = 100000;
SSP_ConfigStruct.Databit = SSP_DATABIT_8;
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(LPC_SSP0, &SSP_ConfigStruct);
// Enable SSP peripheral
SSP_Cmd(LPC_SSP0, ENABLE);
}
static void init_ssp(void)
{
SSP_CFG_Type SSP_ConfigStruct;
PINSEL_CFG_Type PinCfg;
/*
* Initialize SPI pin connect
* P0.7 - SCK;
* P0.8 - MISO
* P0.9 - MOSI
* P2.2 - SSEL - used as GPIO
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 7;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 8;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 9;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Funcnum = 0;
PinCfg.Portnum = 2;
PinCfg.Pinnum = 2;
PINSEL_ConfigPin(&PinCfg);
SSP_ConfigStructInit(&SSP_ConfigStruct);
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(LPC_SSP1, &SSP_ConfigStruct);
// Enable SSP peripheral
SSP_Cmd(LPC_SSP1, ENABLE);
}
static void SpiInit(void)
{
// Init : SPI Enable, Master, Clock rate
#if 0
#ifdef USE_RF12
// use clk/8 (2x 1/16th) to avoid exceeding RF12's SPI specs of 2.5 MHz when both are used together
SPCR = _BV(SPE) | _BV(MSTR);
#else
SPCR = _BV(SPE) | _BV(MSTR) | _BV(SPR0);
#endif
SPSR |= _BV(SPI2X);
#else
// LPC17xx config
PINSEL_CFG_Type pin_config =
{
.Portnum = DECODE_PORTNUM(SPI_SCK),
.Pinmode = PINSEL_PINMODE_TRISTATE,
.OpenDrain = PINSEL_PINMODE_NORMAL
};
SSP_CFG_Type ssp_config =
{
.CPHA = SSP_CPHA_FIRST,
.CPOL = SSP_CPOL_HI,
.ClockRate = SSP_CLK,
.Databit = SSP_DATABIT_8,
.Mode = SSP_MASTER_MODE,
.FrameFormat = SSP_FRAME_SPI
};
// setup IO pins for SSP peripheral function
pin_config.Funcnum = 2; // second alternate function
pin_config.Pinnum = DECODE_BITNUM(SPI_MISO);
PINSEL_ConfigPin(&pin_config);
pin_config.Pinnum = DECODE_BITNUM(SPI_MOSI);
PINSEL_ConfigPin(&pin_config);
pin_config.Pinnum = DECODE_BITNUM(SPI_SCK);
PINSEL_ConfigPin(&pin_config);
pin_config.Funcnum = 0; // GPIO control
pin_config.Pinnum = DECODE_BITNUM(SPI_SSEL);
PINSEL_ConfigPin(&pin_config);
// Initialize the SSP
SSP_Init(SSP, &ssp_config);
SSP_Cmd(SSP, ENABLE);
#endif
}
void LED_init(){
//TODO lsb first spi mode 0 0?
GPIO_SetDir(LED_OE_PORT, LED_OE_BIT, 1);
GPIO_SetValue(LED_OE_PORT, LED_OE_BIT);
GPIO_SetDir(LED_LE_PORT, LED_LE_BIT, 1);
GPIO_SetValue(LED_LE_PORT, LED_LE_BIT);
GPIO_SetDir(WF_HIBERNATE_PORT, WF_HIBERNATE_BIT, 0);
GPIO_SetValu(WF_HIBERNATE_PORT, WF_HIBERNATE_BIT);
// Initialize SPI pin connect
PINSEL_CFG_Type PinCfg;
SSP_CFG_Type SSP_ConfigStruct;
/* SCK1 */
PinCfg.Funcnum = PINSEL_FUNC_2;
PinCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinCfg.Pinmode = PINSEL_PINMODE_PULLDOWN;
PinCfg.Pinnum = LED_SCK_PIN;
PinCfg.Portnum = LED_SCK_PORT;
PINSEL_ConfigPin(&PinCfg);
/* MISO1 */
PinCfg.Pinmode = PINSEL_PINMODE_PULLUP;
PinCfg.Pinnum = LED_MISO_PIN;
PinCfg.Portnum = LED_MISO_PORT;
PINSEL_ConfigPin(&PinCfg);
/* MOSI1 */
PinCfg.Pinnum = LED_MOSI_PIN;
PinCfg.Portnum = LED_MOSI_PORT;
PINSEL_ConfigPin(&PinCfg);
/* initialize SSP configuration structure */
SSP_ConfigStruct.CPHA = SSP_CPHA_FIRST;
SSP_ConfigStruct.CPOL = SSP_CPOL_HI;
SSP_ConfigStruct.ClockRate = 10000000; /* TLC5927 max freq = 30Mhz */
SSP_ConfigStruct.Databit = SSP_DATABIT_16;
SSP_ConfigStruct.Mode = SSP_MASTER_MODE;
SSP_ConfigStruct.FrameFormat = SSP_FRAME_SPI;
SSP_Init(LPC_SSP0, &SSP_ConfigStruct);
RIT_Init(LPC_RIT);
RIT_TimerConfig(LPC_RIT, TIME_INTERVAL); //TODO: decide on time interval
NVIC_SetPriority(LPC_RIT, 0); // set according to main.c
NVIC_EnableIRQ(LPC_RIT);
/* Enable SSP peripheral */
SSP_Cmd(LPC_SSP0, ENABLE);
}
void spi_init()
{
uint32_t i;
volatile uint32_t d;
SSP_CFG_Type configStruct;
g_receive.m_buf = new uint16_t[SPI_RECEIVEBUF_SIZE];
g_receive.m_read = 0;
g_receive.m_write = 0;
g_receive.m_produced = 0;
g_receive.m_consumed = 0;
g_transmit.m_buf = new uint16_t[SPI_TRANSMITBUF_SIZE];
g_transmit.m_read = 0;
g_transmit.m_len = 0;
g_transmit.m_callback = (TransmitCallback)NULL;
configStruct.CPHA = SSP_CPHA_FIRST;
configStruct.CPOL = SSP_CPOL_HI;
configStruct.ClockRate = 204000000;
configStruct.Databit = SSP_DATABIT_16;
configStruct.Mode = SSP_SLAVE_MODE;
configStruct.FrameFormat = SSP_FRAME_SPI;
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(LPC_SSP1, &configStruct);
// clear receive fifo
for (i=0; i<8; i++)
d = LPC_SSP1->DR;
// Enable SSP peripheral
SSP_Cmd(LPC_SSP1, ENABLE);
SSP_ClearIntPending(LPC_SSP1, SSP_INTCFG_RT);
SSP_IntConfig(LPC_SSP1, SSP_INTCFG_RT, ENABLE);
// sync
spi_sync();
// enable interrupt
NVIC_SetPriority(SSP1_IRQn, 0); // high priority interrupt
NVIC_EnableIRQ(SSP1_IRQn);
}
//-----------------------------------------------------------------//
// Setup SSP module
// HCLK = 32 MHz
// The information rate is computed using the following formula:
// F_SSPCLK / ( CPSDVR * (1 + SCR) )
// 3.2 MHz
//-----------------------------------------------------------------//
void HW_SSPInit(void)
{
SSP_InitTypeDef sSSP;
SSP_StructInit (&sSSP);
SSP_BRGInit(MDR_SSP2,SSP_HCLKdiv1); // F_SSPCLK = HCLK / 1
sSSP.SSP_SCR = 0x04; // 0 to 255
sSSP.SSP_CPSDVSR = 2; // even 2 to 254
sSSP.SSP_Mode = SSP_ModeMaster;
sSSP.SSP_WordLength = SSP_WordLength9b;
sSSP.SSP_SPH = SSP_SPH_1Edge;
sSSP.SSP_SPO = SSP_SPO_Low;
sSSP.SSP_FRF = SSP_FRF_SPI_Motorola;
sSSP.SSP_HardwareFlowControl = SSP_HardwareFlowControl_SSE;
SSP_Init (MDR_SSP2,&sSSP);
SSP_Cmd(MDR_SSP2, ENABLE);
}
/*******************************************************************************
* Function Name : Lcd_Configuration
* Description : Configures LCD Control lines
* Input : None
* Output : None
* Return : None
* Attention : None
*******************************************************************************/
static void LCD_Configuration(void)
{
PINSEL_CFG_Type PinCfg;
SSP_CFG_Type SSP_ConfigStruct;
/*
* Initialize SPI pin connect
* P0.15 - LCD_CSB - used as GPIO
* P0.16 - LCD_SCK
* P0.17 - LCD_MISO
* P0.18 - LCD_MOSI
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 15;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 17;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 18;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Funcnum = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 16;
PINSEL_ConfigPin(&PinCfg);
/* P1.31 LCD_CSB is output */
GPIO_SetDir(CSB_PORT_NUM, ( (uint32_t) 1 << CSB_PIN_NUM ), 1);
GPIO_SetValue(CSB_PORT_NUM, ( (uint32_t) 1 << CSB_PIN_NUM ) );
/* initialize SSP configuration structure to default */
SSP_ConfigStructInit(&SSP_ConfigStruct);
SSP_ConfigStruct.CPHA = SSP_CPHA_SECOND;
SSP_ConfigStruct.CPOL = SSP_CPOL_LO;
SSP_ConfigStruct.ClockRate = 34000000;
/* Initialize SSP peripheral with parameter given in structure above */
SSP_Init(LPC_SSP0, &SSP_ConfigStruct);
/* Enable SSP peripheral */
SSP_Cmd(LPC_SSP0, ENABLE);
}
int main(void)
{
volatile int timeKeeper=0;
unsigned char i=0;
SSP_CFG_Type sspChannelConfig;
SSP_DATA_SETUP_Type sspDataConfig;
uint8_t rxBuff[5];
uint8_t txBuff[5];
LPC_PINCON->PINSEL0 |= 0x2<<14; //SCK1
LPC_PINCON->PINSEL0 |= 0x2<<18; //MOSI1
PORT_CS->FIODIR |= 1<<2; //P2.2 as CSn
sspDataConfig.length = 1;
sspDataConfig.tx_data = txBuff;
sspDataConfig.rx_data = rxBuff;
SSP_ConfigStructInit(&sspChannelConfig);
SSP_Init(SSP_CHANNEL, &sspChannelConfig);
SSP_Cmd(SSP_CHANNEL, ENABLE);
while(1)
{
if (timeKeeper++ % 500000 == 0)
{
PORT_CS->FIOCLR |= PIN_MASK_CS; //CS low
txBuff[0] = segmentLUT[i++]; //Buffer next numeral
//Only display 0-9
if (i==10) i=0;
//Transfer to 7-Segment Display Driver
SSP_ReadWrite(SSP_CHANNEL, &sspDataConfig, SSP_TRANSFER_POLLING);
PORT_CS->FIOSET |= PIN_MASK_CS; //CS High
}
}
return 0 ;
}
void spi_init (int spi_channel)
{
SSP_CFG_Type SSP_ConfigStruct;
if (spi_channel == 0)
pSPI = LPC_SSP0;
else
pSPI = LPC_SSP1;
/* initialize SSP configuration structure */
SSP_ConfigStruct.CPHA = SSP_CPHA_FIRST;
SSP_ConfigStruct.CPOL = SSP_CPOL_HI;
SSP_ConfigStruct.ClockRate = 200000; /* 200KHz */
SSP_ConfigStruct.Databit = SSP_DATABIT_8;
SSP_ConfigStruct.Mode = SSP_MASTER_MODE;
SSP_ConfigStruct.FrameFormat = SSP_FRAME_SPI;
SSP_Init(pSPI, &SSP_ConfigStruct);
/* Enable SSP peripheral */
SSP_Cmd(pSPI, ENABLE);
}
/*******************************************************************************
* Function Name : SPI_FLASH_Init
* Description : SPI FLASH Configuration
* Input : None
* Output : None
* Return : None
* Attention : None
*******************************************************************************/
void SPI_FLASH_RTC_Init(void)
{
SSP_CFG_Type SSP_ConfigStruct;
/*
* Initialize SPI pin connect
* P2.19 - SSEL - used as GPIO
* P2.22 - SCK
* P2.26 - MISO
* P2.27 - MOSI
*/
PINSEL_ConfigPin(FLASH_CS_PORT_NUM, FLASH_CS_PIN_NUM, 0); /* P2.19 - GPIO */
// PINSEL_ConfigPin(RTC_CS_PORT_NUM, RTC_CS_PIN_NUM, 0); /* P2.21 - GPIO */
PINSEL_ConfigPin(RTC_FLASH_MOSI_PORT_NUM, RTC_FLASH_MOSI_PIN_NUM, RTC_FLASH_MOSI_FUN_NUM); /* SSP0_SCK */
PINSEL_ConfigPin(RTC_FLASH_MISO_PORT_NUM, RTC_FLASH_MISO_PIN_NUM, RTC_FLASH_MISO_FUN_NUM); /* SSP0_MISO */
PINSEL_ConfigPin(RTC_FLASH_SCK_PORT_NUM, RTC_FLASH_SCK_PIN_NUM, RTC_FLASH_SCK_FUN_NUM); /* SSP0_MOSI */
PINSEL_SetPinMode(RTC_FLASH_MOSI_PORT_NUM,RTC_FLASH_MOSI_PIN_NUM,IOCON_MODE_PULLUP);
PINSEL_SetPinMode(RTC_FLASH_MISO_PORT_NUM,RTC_FLASH_MISO_PIN_NUM,IOCON_MODE_PLAIN);
/* P2.19 CS is output */
GPIO_SetDir(FLASH_CS_PORT_NUM, (1<<FLASH_CS_PIN_NUM), 1);
SPI_FLASH_CS_HIGH();
/* P2.21 CS is output */
// GPIO_SetDir(RTC_CS_PORT_NUM, (1<<RTC_CS_PIN_NUM), 1);
// SPI_RTC_CS_HIGH();
/* initialize SSP configuration structure to default */
SSP_ConfigStructInit(&SSP_ConfigStruct);
SSP_ConfigStruct.CPHA = SSP_CPHA_FIRST;
SSP_ConfigStruct.CPOL = SSP_CPOL_HI;
//SSP_ConfigStruct.FrameFormat = SSP_FRAME_TI;
//SSP_ConfigStruct.Databit = SSP_DATABIT_8;
/* Initialize SSP peripheral with parameter given in structure above */
SSP_ConfigStruct.ClockRate = 3000000;
//SSP_ConfigStruct.Mode = SSP_MASTER_MODE;
SSP_Init(RTC_FLASH_SSP, &SSP_ConfigStruct);
/* Enable SSP peripheral */
SSP_Cmd(RTC_FLASH_SSP, ENABLE);
}
void spi_close(void)
{
PINSEL_CFG_Type PinCfg;
SSP_Cmd(pSPI, DISABLE);
SSP_DeInit(pSPI);
/*
PinCfg.Funcnum = PINSEL_FUNC_0;
PinCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinCfg.Pinmode = PINSEL_PINMODE_PULLDOWN;
PinCfg.Pinnum = 16;
PinCfg.Portnum = 0;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 15;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 17;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 18;
PINSEL_ConfigPin(&PinCfg);
*/
}
void ssp_spi_init(){
SSP_CFG_Type SSP_ConfigStruct;
PINSEL_CFG_Type PinCfg;
SSP_ConfigStructInit(&SSP_ConfigStruct);
/*
* Initialize SPI pin connect
* P0.7 - SCK;
* P0.6 - SSEL
* P0.8 - MISO
* P0.9 - MOSI
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 7;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 8;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 9;
PINSEL_ConfigPin(&PinCfg);
LPC_PINCON->PINSEL0 &= ~(0x3<<12); // [P0.6] SSEL1 as GPIO. auto ssp does not work because it toggles cs between bytes.
LPC_GPIO0->FIODIR |= (1 << SPI_SCK_PIN) | (1 << SPI_MOSI_PIN) | (1 << SPI_SSEL_PIN);
LPC_GPIO0->FIODIR &= ~(1 << SPI_MISO_PIN);
LPC_GPIO0->FIOSET |= PIN_MASK_CS; // - set high
SSP_Init(LPC_SSP1,&SSP_ConfigStruct);
SSP_Cmd(LPC_SSP1, ENABLE);
}
/*********************************************************************//**
* @brief c_entry: Main TI program body
* @param[in] None
* @return int
**********************************************************************/
int c_entry(void)
{
/* Initialize debug via UART0
* – 115200bps
* – 8 data bit
* – No parity
* – 1 stop bit
* – No flow control
*/
debug_frmwrk_init();
// print welcome screen
print_menu();
/*
* Initialize SSP pin connect
*/
#if (SSP0_LOCALTION_NUM == 0)
// SSP0 Loc 1
PINSEL_ConfigPin(0, 15, 2); // SCK J5-19
PINSEL_ConfigPin(0, 16, 2); // SSEL J3-24
PINSEL_ConfigPin(0, 17, 2); // MISO J5-20
PINSEL_ConfigPin(0, 18, 2); // MOSI J3-23
#elif (SSP0_LOCALTION_NUM == 1)
// SSP0 Loc 2
PINSEL_ConfigPin(1, 20, 5); //SCK J5-32
PINSEL_ConfigPin(1, 28, 5); //SEL J5-36
PINSEL_ConfigPin(1, 23, 5); // MISO J3-35
PINSEL_ConfigPin(1, 24, 5); // MOSI J5-34
#elif (SSP0_LOCALTION_NUM == 2)
//SSP0 Loc 3
PINSEL_ConfigPin(2, 22, 2); // SCK J5-47
PINSEL_ConfigPin(2, 23, 2); // SSEL J5-56
PINSEL_ConfigPin(2, 26, 2); // MISO J5-57
PINSEL_ConfigPin(2, 27, 2); // MOSI J5-49
#else
while(1);
#endif
#if (SSP1_LOCALTION_NUM == 0)
// Loc 1
PINSEL_ConfigPin(0, 7, 2); // SCK J5.17
PINSEL_SetFilter(0, 7, 0);
PINSEL_ConfigPin(0, 6, 2); // SSEL J3.18
PINSEL_ConfigPin(0, 8, 2); // MISO J3.19
PINSEL_SetFilter(0, 8, 0);
PINSEL_ConfigPin(0, 9, 2); // MOSI J5.18
PINSEL_SetFilter(0, 9, 0);
#elif (SSP1_LOCALTION_NUM == 1)
// Loc 2
PINSEL_ConfigPin(1, 19, 5); // SCK J3-33
PINSEL_ConfigPin(1, 26, 5); //SSEL J5-35
PINSEL_ConfigPin(1, 18, 5); //MISO J5-31
PINSEL_ConfigPin(1, 22, 5); //MOSI J5-33
#elif (SSP1_LOCALTION_NUM == 2)
// Loc 3
PINSEL_ConfigPin(1, 31, 2); //SCK J3-39
PINSEL_ConfigPin(0, 14, 2); //SSEL J3-21
PINSEL_ConfigPin(0, 12, 2); //MISO J3-22
PINSEL_ConfigPin(0, 13, 2); //MOSI J3-13
#else
while(1);
#endif
/* Initializing Master SSP device section ------------------------------------------- */
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
// Re-configure SSP to TI frame format
SSP_ConfigStruct.FrameFormat = SSP_FRAME_TI;
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(SSPDEV_M, &SSP_ConfigStruct);
// Enable SSP peripheral
SSP_Cmd(SSPDEV_M, ENABLE);
/* Initializing Slave SSP device section ------------------------------------------- */
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
/* Re-configure mode for SSP device */
SSP_ConfigStruct.Mode = SSP_SLAVE_MODE;
// Re-configure SSP to TI frame format
SSP_ConfigStruct.FrameFormat = SSP_FRAME_TI;
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(SSPDEV_S, &SSP_ConfigStruct);
// Enable SSP peripheral
SSP_Cmd(SSPDEV_S, ENABLE);
/* Interrupt configuration section ------------------------------------------------- */
#if ((USEDSSPDEV_S == 0) || (USEDSSPDEV_M == 0))
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(SSP0_IRQn, ((0x01<<3)|0x01));
/* Enable SSP0 interrupt */
NVIC_EnableIRQ(SSP0_IRQn);
#endif
#if ((USEDSSPDEV_S == 1) || (USEDSSPDEV_M == 1))
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(SSP1_IRQn, ((0x01<<3)|0x01));
/* Enable SSP0 interrupt */
NVIC_EnableIRQ(SSP1_IRQn);
#endif
_DBG_("Press '1' to start transfer...");
while (_DG != '1');
/* Initializing Buffer section ------------------------------------------------- */
Buffer_Init();
/* Start Transmit/Receive between Master and Slave ----------------------------- */
complete_S = FALSE;
complete_M = FALSE;
/* Slave must be ready first */
ssp_SlaveReadWrite(SSPDEV_S, Slave_Rx_Buf, Slave_Tx_Buf, BUFFER_SIZE);
/* Then Master can start its transferring */
ssp_MasterReadWrite(SSPDEV_M, Master_Rx_Buf, Master_Tx_Buf, BUFFER_SIZE);
/* Wait for complete */
while ((complete_S == FALSE) || (complete_M == FALSE));
/* Verify buffer */
Buffer_Verify();
_DBG_("Verify success!\n\r");
/* Loop forever */
while(1);
}
/*********************************************************************//**
* @brief Main SSP program body
**********************************************************************/
int c_entry(void)
{
GPDMA_Channel_CFG_Type GPDMACfg;
PINSEL_CFG_Type PinCfg;
// DeInit NVIC and SCBNVIC
NVIC_DeInit();
NVIC_SCBDeInit();
/* Configure the NVIC Preemption Priority Bits:
* two (2) bits of preemption priority, six (6) bits of sub-priority.
* Since the Number of Bits used for Priority Levels is five (5), so the
* actual bit number of sub-priority is three (3)
*/
NVIC_SetPriorityGrouping(0x05);
// Set Vector table offset value
#if (__RAM_MODE__==1)
NVIC_SetVTOR(0x10000000);
#else
NVIC_SetVTOR(0x00000000);
#endif
/*
* Initialize SPI pin connect
* P0.15 - SCK;
* P0.16 - SSEL
* P0.17 - MISO
* P0.18 - MOSI
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 15;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 17;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 18;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 16;
PINSEL_ConfigPin(&PinCfg);
/*
* Initialize debug via UART
*/
debug_frmwrk_init();
// print welcome screen
print_menu();
/* Initializing SSP device section ------------------------------------------------------ */
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(LPC_SSP0, &SSP_ConfigStruct);
// Enable SSP peripheral
SSP_Cmd(LPC_SSP0, ENABLE);
/* GPDMA Interrupt configuration section ------------------------------------------------- */
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(DMA_IRQn, ((0x01<<3)|0x01));
/* Enable SSP0 interrupt */
NVIC_EnableIRQ(DMA_IRQn);
/* Initializing Buffer section ----------------------------------------------------------- */
Buffer_Init();
/* Initialize GPDMA controller */
GPDMA_Init();
/* Setting GPDMA interrupt */
// Disable interrupt for DMA
NVIC_DisableIRQ (DMA_IRQn);
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(DMA_IRQn, ((0x01<<3)|0x01));
/* Configure GPDMA channel 0 -------------------------------------------------------------*/
/* DMA Channel 0 */
GPDMACfg.ChannelNum = 0;
// Source memory
GPDMACfg.SrcMemAddr = (uint32_t) &dma_src;
// Destination memory - Not used
GPDMACfg.DstMemAddr = 0;
// Transfer size
GPDMACfg.TransferSize = sizeof(dma_src);
// Transfer width - not used
GPDMACfg.TransferWidth = 0;
// Transfer type
GPDMACfg.TransferType = GPDMA_TRANSFERTYPE_M2P;
// Source connection - unused
GPDMACfg.SrcConn = 0;
// Destination connection
GPDMACfg.DstConn = GPDMA_CONN_SSP0_Tx;
// Linker List Item - unused
GPDMACfg.DMALLI = 0;
// Setup channel with given parameter
GPDMA_Setup(&GPDMACfg, GPDMA_Callback0);
/* Reset terminal counter */
Channel0_TC = 0;
/* Reset Error counter */
Channel0_Err = 0;
/* Configure GPDMA channel 1 -------------------------------------------------------------*/
/* DMA Channel 1 */
GPDMACfg.ChannelNum = 1;
// Source memory - not used
GPDMACfg.SrcMemAddr = 0;
// Destination memory - Not used
GPDMACfg.DstMemAddr = (uint32_t) &dma_dst;
// Transfer size
GPDMACfg.TransferSize = sizeof(dma_dst);
// Transfer width - not used
GPDMACfg.TransferWidth = 0;
// Transfer type
GPDMACfg.TransferType = GPDMA_TRANSFERTYPE_P2M;
// Source connection
GPDMACfg.SrcConn = GPDMA_CONN_SSP0_Rx;
// Destination connection - not used
GPDMACfg.DstConn = 0;
// Linker List Item - unused
GPDMACfg.DMALLI = 0;
// Setup channel with given parameter
GPDMA_Setup(&GPDMACfg, GPDMA_Callback1);
/* Reset terminal counter */
Channel1_TC = 0;
/* Reset Error counter */
Channel1_Err = 0;
_DBG_("Start transfer...");
// Enable Tx and Rx DMA on SSP0
SSP_DMACmd (LPC_SSP0, SSP_DMA_RX, ENABLE);
SSP_DMACmd (LPC_SSP0, SSP_DMA_TX, ENABLE);
// Enable GPDMA channel 0
GPDMA_ChannelCmd(0, ENABLE);
// Enable GPDMA channel 0
GPDMA_ChannelCmd(1, ENABLE);
// Enable interrupt for DMA
NVIC_EnableIRQ (DMA_IRQn);
/* Wait for GPDMA processing complete */
while (((Channel0_TC == 0) && (Channel0_Err == 0)) \
|| ((Channel1_TC == 0) && (Channel1_Err ==0)));
/* Verify buffer */
Buffer_Verify();
_DBG_("Verify complete!");
/* Loop forever */
while(1);
return 1;
}
void main(void)
#endif
{
RST_CLK_DeInit();
RST_CLK_CPU_PLLconfig (RST_CLK_CPU_PLLsrcHSIdiv2,0);
/* Enable peripheral clocks --------------------------------------------------*/
RST_CLK_PCLKcmd((RST_CLK_PCLK_RST_CLK | RST_CLK_PCLK_SSP1 | RST_CLK_PCLK_SSP2 | RST_CLK_PCLK_DMA),ENABLE);
RST_CLK_PCLKcmd((RST_CLK_PCLK_PORTF | RST_CLK_PCLK_PORTD), ENABLE);
/* Init NVIC */
SCB->AIRCR = 0x05FA0000 | ((uint32_t)0x500);
SCB->VTOR = 0x08000000;
/* Disable all interrupt */
NVIC->ICPR[0] = 0xFFFFFFFF;
NVIC->ICER[0] = 0xFFFFFFFF;
/* Disable all DMA request */
MDR_DMA->CHNL_REQ_MASK_CLR = 0xFFFFFFFF;
MDR_DMA->CHNL_USEBURST_CLR = 0xFFFFFFFF;
/* Reset PORTD settings */
PORT_DeInit(MDR_PORTD);
/* Reset PORTF settings */
PORT_DeInit(MDR_PORTF);
/* Configure SSP2 pins: FSS, CLK, RXD, TXD */
/* Configure PORTD pins 2, 3, 5, 6 */
PORT_InitStructure.PORT_Pin = (PORT_Pin_2 | PORT_Pin_3 | PORT_Pin_5);
PORT_InitStructure.PORT_OE = PORT_OE_IN;
PORT_InitStructure.PORT_FUNC = PORT_FUNC_ALTER;
PORT_InitStructure.PORT_MODE = PORT_MODE_DIGITAL;
PORT_InitStructure.PORT_SPEED = PORT_SPEED_FAST;
PORT_Init(MDR_PORTD, &PORT_InitStructure);
PORT_InitStructure.PORT_OE = PORT_OE_OUT;
PORT_InitStructure.PORT_Pin = (PORT_Pin_6);
PORT_Init(MDR_PORTD, &PORT_InitStructure);
/* Configure SSP1 pins: FSS, CLK, RXD, TXD */
/* Configure PORTF pins 0, 1, 2, 3 */
PORT_InitStructure.PORT_Pin = (PORT_Pin_3);
PORT_InitStructure.PORT_OE = PORT_OE_IN;
PORT_Init(MDR_PORTF, &PORT_InitStructure);
PORT_InitStructure.PORT_Pin = (PORT_Pin_0 | PORT_Pin_1 | PORT_Pin_2);
PORT_InitStructure.PORT_OE = PORT_OE_OUT;
PORT_Init(MDR_PORTF, &PORT_InitStructure);
/* Init RAM */
Init_RAM (DstBuf1, BufferSize);
Init_RAM (SrcBuf1, BufferSize);
Init_RAM (DstBuf2, BufferSize);
Init_RAM (SrcBuf2, BufferSize);
/* Reset all SSP settings */
SSP_DeInit(MDR_SSP1);
SSP_DeInit(MDR_SSP2);
SSP_BRGInit(MDR_SSP1,SSP_HCLKdiv16);
SSP_BRGInit(MDR_SSP2,SSP_HCLKdiv16);
/* SSP1 MASTER configuration ------------------------------------------------*/
SSP_StructInit (&sSSP);
sSSP.SSP_SCR = 0x10;
sSSP.SSP_CPSDVSR = 2;
sSSP.SSP_Mode = SSP_ModeMaster;
sSSP.SSP_WordLength = SSP_WordLength16b;
sSSP.SSP_SPH = SSP_SPH_1Edge;
sSSP.SSP_SPO = SSP_SPO_Low;
sSSP.SSP_FRF = SSP_FRF_SPI_Motorola;
sSSP.SSP_HardwareFlowControl = SSP_HardwareFlowControl_SSE;
SSP_Init (MDR_SSP1,&sSSP);
/* SSP2 SLAVE configuration ------------------------------------------------*/
sSSP.SSP_SPH = SSP_SPH_1Edge;
sSSP.SSP_SPO = SSP_SPO_Low;
sSSP.SSP_CPSDVSR = 12;
sSSP.SSP_Mode = SSP_ModeSlave;
SSP_Init (MDR_SSP2,&sSSP);
/* Enable SSP1 DMA Rx and Tx request */
SSP_DMACmd(MDR_SSP1,(SSP_DMA_RXE | SSP_DMA_TXE), ENABLE);
/* Enable SSP2 DMA Rx and Tx request */
SSP_DMACmd(MDR_SSP2,(SSP_DMA_RXE | SSP_DMA_TXE), ENABLE);
/* Reset all DMA settings */
DMA_DeInit();
DMA_StructInit(&DMA_InitStr);
/* DMA_Channel_SSP1_RX configuration ---------------------------------*/
/* Set Primary Control Data */
DMA_PriCtrlStr.DMA_SourceBaseAddr = (uint32_t)(&(MDR_SSP1->DR));
DMA_PriCtrlStr.DMA_DestBaseAddr = (uint32_t)DstBuf1;
DMA_PriCtrlStr.DMA_SourceIncSize = DMA_SourceIncNo;
DMA_PriCtrlStr.DMA_DestIncSize = DMA_DestIncHalfword;
DMA_PriCtrlStr.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_PriCtrlStr.DMA_Mode = DMA_Mode_Basic;
DMA_PriCtrlStr.DMA_CycleSize = BufferSize;
DMA_PriCtrlStr.DMA_NumContinuous = DMA_Transfers_4;
DMA_PriCtrlStr.DMA_SourceProtCtrl = DMA_SourcePrivileged;
DMA_PriCtrlStr.DMA_DestProtCtrl = DMA_DestPrivileged;
/* Set Channel Structure */
DMA_InitStr.DMA_PriCtrlData = &DMA_PriCtrlStr;
DMA_InitStr.DMA_Priority = DMA_Priority_High;
DMA_InitStr.DMA_UseBurst = DMA_BurstClear;
DMA_InitStr.DMA_SelectDataStructure = DMA_CTRL_DATA_PRIMARY;
/* Init DMA channel */
DMA_Init(DMA_Channel_SSP1_RX, &DMA_InitStr);
/* DMA_Channel_SSP2_RX configuration ---------------------------------*/
/* Set Primary Control Data */
DMA_PriCtrlStr.DMA_SourceBaseAddr = (uint32_t)(&(MDR_SSP2->DR));
DMA_PriCtrlStr.DMA_DestBaseAddr = (uint32_t)DstBuf2;
/* Init DMA channel */
DMA_Init(DMA_Channel_SSP2_RX, &DMA_InitStr);
/* DMA_Channel_SSP1_TX configuration ---------------------------------*/
/* Set Primary Control Data */
DMA_PriCtrlStr.DMA_SourceBaseAddr = (uint32_t)SrcBuf1;
DMA_PriCtrlStr.DMA_DestBaseAddr = (uint32_t)(&(MDR_SSP1->DR));
DMA_PriCtrlStr.DMA_SourceIncSize = DMA_SourceIncHalfword;
DMA_PriCtrlStr.DMA_DestIncSize = DMA_DestIncNo;
DMA_InitStr.DMA_Priority = DMA_Priority_Default;
/* Init DMA channel */
DMA_Init(DMA_Channel_SSP1_TX, &DMA_InitStr);
/* DMA_Channel_SSP2_TX configuration ---------------------------------*/
/* Set Primary Control Data */
DMA_PriCtrlStr.DMA_SourceBaseAddr = (uint32_t)SrcBuf2;
DMA_PriCtrlStr.DMA_DestBaseAddr = (uint32_t)(&(MDR_SSP2->DR));
/* Init DMA channel */
DMA_Init(DMA_Channel_SSP2_TX, &DMA_InitStr);
/* Enable SSP1 */
SSP_Cmd(MDR_SSP1, ENABLE);
/* Enable SSP2 */
SSP_Cmd(MDR_SSP2, ENABLE);
/* Transfer complete */
while((SSP_GetFlagStatus(MDR_SSP1, SSP_FLAG_BSY)))
{
}
while((SSP_GetFlagStatus(MDR_SSP2, SSP_FLAG_BSY)))
{
}
/* Check the corectness of written dada */
TransferStatus1 = Verif_mem ((BufferSize), SrcBuf1, DstBuf2);
TransferStatus2 = Verif_mem ((BufferSize), SrcBuf2, DstBuf1);
/* TransferStatus1, TransferStatus2 = PASSED, if the data transmitted and received
are correct */
/* TransferStatus1, TransferStatus2 = FAILED, if the data transmitted and received
are different */
while(1)
{
}
}
void LED_init(){
GPIO_SetDir(LED_OE_PORT, LED_OE_BIT, 1);
GPIO_SetValue(LED_OE_PORT, LED_OE_BIT);//turn off leds active low
LatchIn();//reset
GPIO_SetDir(LED_LE_PORT, LED_LE_BIT, 1);
GPIO_ClearValue(LED_LE_PORT, LED_LE_BIT);
//reset all arrays
for (uint8_t tmp=0;tmp<no_SEQ_BITS;tmp++){
SEQ_BIT[tmp] = BITORDER[tmp];
SEQ_TIME[tmp] = BITTIME[BITORDER[tmp]];
}
resetLeds();
calulateLEDMIBAMBits();
// Initialize SPI pin connect
PINSEL_CFG_Type PinCfg;
/* LE1 */
PinCfg.Funcnum = PINSEL_FUNC_0;
PinCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinCfg.Pinmode = PINSEL_PINMODE_PULLDOWN;
PinCfg.Pinnum = LED_LE_PIN;
PinCfg.Portnum = LED_LE_PORT;
PINSEL_ConfigPin(&PinCfg);
/* SSEL1 */
PinCfg.Funcnum = PINSEL_FUNC_0;
PinCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinCfg.Pinmode = PINSEL_PINMODE_PULLDOWN;
PinCfg.Pinnum = LED_OE_PIN;
PinCfg.Portnum = LED_OE_PORT;
PINSEL_ConfigPin(&PinCfg);
/* SCK1 */
PinCfg.Funcnum = PINSEL_FUNC_2;
PinCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinCfg.Pinmode = PINSEL_PINMODE_PULLUP;
PinCfg.Pinnum = LED_SCK_PIN;
PinCfg.Portnum = LED_SCK_PORT;
PINSEL_ConfigPin(&PinCfg);
/* MISO1 */
PinCfg.Funcnum = PINSEL_FUNC_2;
PinCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinCfg.Pinmode = PINSEL_PINMODE_PULLUP;
PinCfg.Pinnum = LED_MISO_PIN;
PinCfg.Portnum = LED_MISO_PORT;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Funcnum = PINSEL_FUNC_2;
/* MOSI1 */
PinCfg.Funcnum = PINSEL_FUNC_2;
PinCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinCfg.Pinmode = PINSEL_PINMODE_PULLUP;
PinCfg.Pinnum = LED_MOSI_PIN;
PinCfg.Portnum = LED_MOSI_PORT;
PINSEL_ConfigPin(&PinCfg);
/* initialize SSP configuration structure */
SSP_CFG_Type SSP_ConfigStruct;
SSP_ConfigStruct.CPHA = SSP_CPHA_SECOND;
SSP_ConfigStruct.CPOL = SSP_CPOL_LO;
SSP_ConfigStruct.ClockRate = SSP_SPEED; // TLC5927 max freq = 30Mhz
SSP_ConfigStruct.FrameFormat = SSP_FRAME_SPI;
SSP_ConfigStruct.Databit = SSP_DATABIT_16;
SSP_ConfigStruct.Mode = SSP_MASTER_MODE;
SSP_Init(LED_SPI_CHN, &SSP_ConfigStruct);
SSP_Cmd(LED_SPI_CHN, ENABLE); // Enable SSP peripheral
// Setup LED interupt
// xprintf(INFO "LED TIM0_ConfigMatch");FFL_();
TIM_TIMERCFG_Type TIM0_ConfigStruct;
TIM_MATCHCFG_Type TIM0_MatchConfigStruct;
TIM0_ConfigStruct.PrescaleOption = TIM_PRESCALE_USVAL; // Initialize timer 0, prescale count time of 1us //1000000uS = 1S
TIM0_ConfigStruct.PrescaleValue = 1;
TIM0_MatchConfigStruct.MatchChannel = 0; // use channel 0, MR0
TIM0_MatchConfigStruct.IntOnMatch = TRUE; // Enable interrupt when MR0 matches the value in TC register
TIM0_MatchConfigStruct.ResetOnMatch = TRUE; //Enable reset on MR0: TIMER will reset if MR0 matches it
TIM0_MatchConfigStruct.StopOnMatch = FALSE; //Stop on MR0 if MR0 matches it
TIM0_MatchConfigStruct.ExtMatchOutputType = TIM_EXTMATCH_NOTHING;
TIM0_MatchConfigStruct.MatchValue = BITTIME[0]; // Set Match value, count value of 1000000 (1000000 * 1uS = 1000000us = 1s --> 1 Hz)
TIM_Init(LPC_TIM0, TIM_TIMER_MODE,&TIM0_ConfigStruct); // Set configuration for Tim_config and Tim_MatchConfig
TIM_ConfigMatch(LPC_TIM0,&TIM0_MatchConfigStruct);
NVIC_SetPriority(TIMER0_IRQn, 0);
NVIC_EnableIRQ(TIMER0_IRQn);
// xprintf(OK "LED TIM0_ConfigMatch");FFL_();
// Setup LED Latch interupt
// xprintf(INFO "LED TIM1_ConfigMatch");FFL_();
TIM_TIMERCFG_Type TIM1_ConfigStruct;
TIM_MATCHCFG_Type TIM1_MatchConfigStruct;
TIM1_ConfigStruct.PrescaleOption = TIM_PRESCALE_TICKVAL; // Initialize timer 0, prescale count time of 1us //1000000uS = 1S
TIM1_ConfigStruct.PrescaleValue = 1;
TIM1_MatchConfigStruct.MatchChannel = 0; // use channel 0, MR0
TIM1_MatchConfigStruct.IntOnMatch = TRUE; // Enable interrupt when MR0 matches the value in TC register
TIM1_MatchConfigStruct.ResetOnMatch = TRUE; //Enable reset on MR0: TIMER will reset if MR0 matches it
TIM1_MatchConfigStruct.StopOnMatch = TRUE; //Stop on MR0 if MR0 matches it
TIM1_MatchConfigStruct.ExtMatchOutputType = TIM_EXTMATCH_NOTHING;
TIM1_MatchConfigStruct.MatchValue = LED_Latch_interupt_delay; // Set Match value, count value of 1000000 (1000000 * 1uS = 1000000us = 1s --> 1 Hz)
TIM_Init(LPC_TIM1, TIM_TIMER_MODE,&TIM1_ConfigStruct); // Set configuration for Tim_config and Tim_MatchConfig
TIM_ConfigMatch(LPC_TIM1,&TIM1_MatchConfigStruct);
NVIC_SetPriority(TIMER1_IRQn, 0);
NVIC_EnableIRQ(TIMER1_IRQn);
// xprintf(OK "LED TIM1_ConfigMatch");FFL_();
// Speed timer
// xprintf(INFO "LED TIM2_ConfigMatch");FFL_();
TIM_TIMERCFG_Type TIM2_ConfigStruct;
TIM_MATCHCFG_Type TIM2_MatchConfigStruct;
TIM2_ConfigStruct.PrescaleOption = TIM_PRESCALE_USVAL; // Initialize timer 0, prescale count time of 1us //1000000uS = 1S
TIM2_ConfigStruct.PrescaleValue = 1000;
TIM2_MatchConfigStruct.MatchChannel = 0; // use channel 0, MR0
TIM2_MatchConfigStruct.IntOnMatch = TRUE; // Enable interrupt when MR0 matches the value in TC register
TIM2_MatchConfigStruct.ResetOnMatch = TRUE; //Enable reset on MR0: TIMER will reset if MR0 matches it
TIM2_MatchConfigStruct.StopOnMatch = FALSE; //Stop on MR0 if MR0 matches it
TIM2_MatchConfigStruct.ExtMatchOutputType = TIM_EXTMATCH_NOTHING;
TIM2_MatchConfigStruct.MatchValue = 256; // Set Match value, count value of 1000000 (1000000 * 1uS = 1000000us = 1s --> 1 Hz)
TIM_Init(LPC_TIM2, TIM_TIMER_MODE,&TIM2_ConfigStruct); // Set configuration for Tim_config and Tim_MatchConfig
TIM_ConfigMatch(LPC_TIM2,&TIM2_MatchConfigStruct);
NVIC_SetPriority(TIMER2_IRQn, 0);
NVIC_EnableIRQ(TIMER2_IRQn);
// xprintf(OK "LED TIM2_ConfigMatch");FFL_();
#ifdef DMA
// GPDMA_Channel_CFG_Type GPDMACfg;
NVIC_SetPriority(DMA_IRQn, 0); // set according to main.c
NVIC_EnableIRQ(DMA_IRQn);
GPDMA_Init(); // Initialize GPDMA controller */
NVIC_DisableIRQ (DMA_IRQn); // Disable interrupt for DMA
NVIC_SetPriority(DMA_IRQn, 0); // set according to main.c
GPDMACfg.ChannelNum = 0; // DMA Channel 0
GPDMACfg.SrcMemAddr = 0; // Source memory - not used - will be sent in interrupt so independent bit Linker Lists can be chosen
GPDMACfg.DstMemAddr = 0; // Destination memory - not used - only used when destination is memory
GPDMACfg.TransferSize = 1; // Transfer size
GPDMACfg.TransferWidth = GPDMA_WIDTH_HALFWORD; // Transfer width - not used
GPDMACfg.TransferType = GPDMA_TRANSFERTYPE_M2P; // Transfer type
GPDMACfg.SrcConn = 0; // Source connection - not used
GPDMACfg.DstConn = GPDMA_CONN_SSP0_Tx; // Destination connection - not used
GPDMACfg.DMALLI = (uint32_t) &LinkerList[0][0][0]; // Linker List Item - Pointer to linker list
GPDMA_Setup(&GPDMACfg); // Setup channel with given parameter
// Linker list 32bit Control
uint32_t LinkerListControl = 0;
LinkerListControl = GPDMA_DMACCxControl_TransferSize((uint32_t)GPDMACfg.TransferSize) \
| GPDMA_DMACCxControl_SBSize((uint32_t)GPDMA_BSIZE_1) \
| GPDMA_DMACCxControl_DBSize((uint32_t)GPDMA_BSIZE_1) \
| GPDMA_DMACCxControl_SWidth((uint32_t)GPDMACfg.TransferWidth) \
| GPDMA_DMACCxControl_DWidth((uint32_t)GPDMACfg.TransferWidth) \
| GPDMA_DMACCxControl_SI;
uint8_t reg, bit, linkerListNo, buf;
for (buf=0;buf<BUFFERS;buf++){
for (bit=0;bit<BITS;bit++){
linkerListNo=0;
for (reg=5; 0<reg;reg--,linkerListNo++){
// xprintf("bit:%d reg:%d SrcAddr:0x%x DstAddr:0x%x NextLLI:0x%x linkerListNo:0x%x\n",bit,reg,(uint32_t) &LED_PRECALC[reg][bit][buf],(uint32_t) &LPC_SSP0->DR,(uint32_t) &LinkerList[linkerListNo+1][bit][buf],linkerListNo);
LinkerList[linkerListNo][bit][buf].SrcAddr = (uint32_t) &LED_PRECALC[reg][bit][buf]; /**< Source Address */
LinkerList[linkerListNo][bit][buf].DstAddr = (uint32_t) &LPC_SSP0->DR; /**< Destination address */
LinkerList[linkerListNo][bit][buf].NextLLI = (uint32_t) &LinkerList[linkerListNo+1][bit][buf]; /**< Next LLI address, otherwise set to '0' */
LinkerList[linkerListNo][bit][buf].Control = LinkerListControl;
// xprintf("SrcAddr:0x%x DstAddr:0x%x NextLLI:0x%x\n",(uint32_t) &LinkerList[linkerListNo][bit][buf].SrcAddr,(uint32_t) &LinkerList[linkerListNo][bit][buf].DstAddr,(uint32_t) &LinkerList[linkerListNo][bit][buf].NextLLI,(uint32_t) &LinkerList[linkerListNo][bit][buf].Control);
}
// if (reg==0){
// xprintf("bit:%d reg:%d SrcAddr:0x%x DstAddr:0x%x NextLLI:0x%x linkerListNo:0x%x\n",bit,reg,(uint32_t) &LED_PRECALC[reg][bit][buf],(uint32_t) &LPC_SSP0->DR,(uint32_t) &LinkerList[linkerListNo+1][bit][buf],linkerListNo);
LinkerList[linkerListNo][bit][buf].SrcAddr = (uint32_t) &LED_PRECALC[reg][bit][buf]; /**< Source Address */
LinkerList[linkerListNo][bit][buf].DstAddr = (uint32_t) &LPC_SSP0->DR; /**< Destination address */
LinkerList[linkerListNo][bit][buf].NextLLI = (uint32_t) &LinkerList[linkerListNo+1][bit][buf];/**< Next LLI address, otherwise set to '0' */
LinkerList[linkerListNo][bit][buf].Control = LinkerListControl;
linkerListNo++;
// xprintf("SrcAddr:0x%x DstAddr:0x%x NextLLI:0x%x\n",(uint32_t) &LinkerList[linkerListNo][bit][buf].SrcAddr,(uint32_t) &LinkerList[linkerListNo][bit][buf].DstAddr,(uint32_t) &LinkerList[linkerListNo][bit][buf].NextLLI,(uint32_t) &LinkerList[linkerListNo][bit][buf].Control);
// }
for (reg=11; reg>6;reg--,linkerListNo++){
// xprintf("bit:%d reg:%d SrcAddr:0x%x DstAddr:0x%x NextLLI:0x%x linkerListNo:0x%x\n",bit,reg,(uint32_t) &LED_PRECALC[reg][bit][buf],(uint32_t) &LPC_SSP0->DR,(uint32_t) &LinkerList[linkerListNo+1][bit][buf],linkerListNo);
LinkerList[linkerListNo][bit][buf].SrcAddr = (uint32_t) &LED_PRECALC[reg][bit][buf]; /**< Source Address */
LinkerList[linkerListNo][bit][buf].DstAddr = (uint32_t) &LPC_SSP0->DR; /**< Destination address */
LinkerList[linkerListNo][bit][buf].NextLLI = (uint32_t) &LinkerList[linkerListNo+1][bit][buf]; /**< Next LLI address, otherwise set to '0' */
LinkerList[linkerListNo][bit][buf].Control = LinkerListControl;
// xprintf("SrcAddr:0x%x DstAddr:0x%x NextLLI:0x%x\n",(uint32_t) &LinkerList[linkerListNo][bit][buf].SrcAddr,(uint32_t) &LinkerList[linkerListNo][bit][buf].DstAddr,(uint32_t) &LinkerList[linkerListNo][bit][buf].NextLLI,(uint32_t) &LinkerList[linkerListNo][bit][buf].Control);
}
// if (reg==7){
// xprintf("bit:%d reg:%d SrcAddr:0x%x DstAddr:0x%x NextLLI:0x%x linkerListNo:0x%x\n",bit,reg,(uint32_t) &LED_PRECALC[reg][bit][buf],(uint32_t) &LPC_SSP0->DR,(uint32_t) &LinkerList[linkerListNo+1][bit][buf],linkerListNo);
LinkerList[linkerListNo][bit][buf].SrcAddr = (uint32_t) &LED_PRECALC[reg][bit][buf]; /**< Source Address */
LinkerList[linkerListNo][bit][buf].DstAddr = (uint32_t) &LPC_SSP0->DR; /**< Destination address */
LinkerList[linkerListNo][bit][buf].NextLLI = 0; /**< Next LLI address, otherwise set to '0' */
LinkerList[linkerListNo][bit][buf].Control = LinkerListControl;
linkerListNo++;
// xprintf("SrcAddr:0x%x DstAddr:0x%x NextLLI:0x%x NextLLI_V:0x%x\n",(uint32_t) &LinkerList[linkerListNo][bit][buf].SrcAddr,(uint32_t) &LinkerList[linkerListNo][bit][buf].DstAddr,(uint32_t) &LinkerList[linkerListNo][bit][buf].NextLLI,LinkerList[linkerListNo][bit][buf].NextLLI);
// }
}
}
SSP_DMACmd (LED_SPI_CHN, SSP_DMA_TX, ENABLE); // Enable Tx DMA on SSP0
// GPDMA_ChannelCmd(0, ENABLE); // Enable GPDMA channel 0
NVIC_EnableIRQ (DMA_IRQn); // Enable interrupt for DMA
xprintf(OK "DMA Setup");FFL_();
TIM_Cmd(LPC_TIM0,ENABLE); // To start timer 0
// TIM_Cmd(LPC_TIM1,ENABLE); // To start timer 1 //done at DMA end
TIM_Cmd(LPC_TIM2,ENABLE); // To start timer 2
xprintf(OK "TIM_Cmd(LPC_TIM0/2,ENABLE);");FFL_();
// Start LED Pattern
uint8_t pot = 65;
Set_LED_Pattern(1,121,pot);
xprintf(OK "LED Pattern Started");FFL_();
#endif
#ifdef RxDMA // SSP Rx DMA
GPDMA_Channel_CFG_Type GPDMACfg1;
/* Configure GPDMA channel 1 -------------------------------------------------------------*/
GPDMACfg1.ChannelNum = 1; // DMA Channel 0
GPDMACfg1.SrcMemAddr = 0; // Source memory - not used - will be sent in interrupt so independent bit Linker Lists can be chosen
GPDMACfg1.DstMemAddr = (uint32_t) &LED_PRECALC1[0][0]; // Destination memory - not used - only used when destination is memory
GPDMACfg1.TransferSize = 1; // Transfer size
GPDMACfg1.TransferWidth = GPDMA_WIDTH_HALFWORD; // Transfer width
GPDMACfg1.TransferType = GPDMA_TRANSFERTYPE_P2M; // Transfer type
GPDMACfg1.SrcConn = GPDMA_CONN_SSP0_Rx; // Source connection - not used
GPDMACfg1.DstConn = 0; // Destination connection - not used
GPDMACfg1.DMALLI = 0; // Linker List Item - Pointer to linker list
GPDMA_Setup(&GPDMACfg1); // Setup channel with given parameter
Channel1_TC = 0; // Reset terminal counter
Channel1_Err = 0; // Reset Error counter
xprintf(OK "DMA Rx Setup");FFL_();
// SSP_DMACmd (LED_SPI_CHN, SSP_DMA_RX, ENABLE); // Enable Tx DMA on SSP0
// GPDMA_ChannelCmd(1, ENABLE); // Enable GPDMA channel 0
#endif
}
/*********************************************************************//**
* @brief c_entry: Main MICROWIRE program body
* @param[in] None
* @return int
**********************************************************************/
int c_entry(void)
{
uint32_t cnt;
PINSEL_CFG_Type PinCfg;
/* Initialize debug via UART0
* – 115200bps
* – 8 data bit
* – No parity
* – 1 stop bit
* – No flow control
*/
debug_frmwrk_init();
// print welcome screen
print_menu();
/*
* Initialize SSP pin connect
* P0.6 - SSEL1
* P0.7 - SCK1
* P0.8 - MISO1
* P0.9 - MOSI1
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 6;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 7;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 8;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 9;
PINSEL_ConfigPin(&PinCfg);
/*
* Initialize SSP pin connect
* P0.15 - SCK
* P0.16 - SSEL
* P0.17 - MISO
* P0.18 - MOSI
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 15;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 17;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 18;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 16;
PINSEL_ConfigPin(&PinCfg);
/* Initializing Master SSP device section ------------------------------------------- */
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
// Re-configure SSP to MicroWire frame format
SSP_ConfigStruct.FrameFormat = SSP_FRAME_MICROWIRE;
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(SSPDEV_M, &SSP_ConfigStruct);
// Enable SSP peripheral
SSP_Cmd(SSPDEV_M, ENABLE);
/* Initializing Slave SSP device section ------------------------------------------- */
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
/* Re-configure mode for SSP device */
SSP_ConfigStruct.Mode = SSP_SLAVE_MODE;
// Re-configure SSP to MicroWire frame format
SSP_ConfigStruct.FrameFormat = SSP_FRAME_MICROWIRE;
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(SSPDEV_S, &SSP_ConfigStruct);
// Enable SSP peripheral
SSP_Cmd(SSPDEV_S, ENABLE);
/* Initializing Buffer section ------------------------------------------------- */
Buffer_Init();
/* Start Transmit/Receive between Master and Slave ----------------------------- */
pRdBuf_M = (uint8_t *)&Master_Rx_Buf[0];
RdIdx_M = 0;
DatLen_M = BUFFER_SIZE;
pWrBuf_S = (uint8_t *)&Slave_Tx_Buf[0];
WrIdx_S = 0;
DatLen_S = BUFFER_SIZE;
/* Force Last command to Read command as default */
Last_cmd = MicroWire_RD_CMD;
/* Clear all remaining data in RX FIFO */
while (SSP_GetStatus(SSPDEV_M, SSP_STAT_RXFIFO_NOTEMPTY))
{
SSP_ReceiveData(SSPDEV_M);
}
while (SSP_GetStatus(SSPDEV_S, SSP_STAT_RXFIFO_NOTEMPTY))
{
SSP_ReceiveData(SSPDEV_S);
}
for (cnt = 0; cnt < BUFFER_SIZE; cnt++)
{
/* The slave must initialize data in FIFO for immediately transfer from master
* due to last received command
*/
if (Last_cmd == MicroWire_RD_CMD)
{
// Then send the respond to master, this contains data
ssp_MW_SendRSP(SSPDEV_S, (uint16_t) *(pWrBuf_S + WrIdx_S++));
}
else
{
// Then send the respond to master, this contains data
ssp_MW_SendRSP(SSPDEV_S, 0xFF);
}
/* Master must send a read command to slave,
* the slave then respond with its data in FIFO
*/
ssp_MW_SendCMD(SSPDEV_M, MicroWire_RD_CMD);
// Master receive respond
*(pRdBuf_M + RdIdx_M++) = (uint8_t) ssp_MW_GetRSP(SSPDEV_M);
// Re-assign Last command
Last_cmd = ssp_MW_GetCMD(SSPDEV_S);
}
/* Verify buffer */
Buffer_Verify();
_DBG_("Verify success!\n\r");
/* Loop forever */
while(1);
return 1;
}
/*********************************************************************//**
* @brief c_entry: Main SSP program body
* @param[in] None
* @return int
**********************************************************************/
int c_entry(void)
{
uint8_t tmpchar[2] = {0, 0};
PINSEL_CFG_Type PinCfg;
__IO FlagStatus exitflag;
/*
* Initialize SPI pin connect
* P0.15 - SCK
* P0.16 - SSEL - used as GPIO
* P0.17 - MISO
* P0.18 - MOSI
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 15;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 17;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 18;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 16;
PinCfg.Funcnum = 0;
PINSEL_ConfigPin(&PinCfg);
/* Initialize debug via UART0
* – 115200bps
* – 8 data bit
* – No parity
* – 1 stop bit
* – No flow control
*/
debug_frmwrk_init();
// print welcome screen
print_menu();
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(LPC_SSP0, &SSP_ConfigStruct);
// Initialize /CS pin to GPIO function
CS_Init();
// Enable SSP peripheral
SSP_Cmd(LPC_SSP0, ENABLE);
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(SSP0_IRQn, ((0x01<<3)|0x01));
/* Enable SSP0 interrupt */
NVIC_EnableIRQ(SSP0_IRQn);
/* First, send some command to reset SC16IS740 chip via SSP bus interface
* note driver /CS pin to low state before transferring by CS_Enable() function
*/
complete = RESET;
CS_Force(0);
xferConfig.tx_data = iocon_cfg;
xferConfig.rx_data = sspreadbuf;
xferConfig.length = sizeof (iocon_cfg);
SSP_ReadWrite(LPC_SSP0, &xferConfig, SSP_TRANSFER_INTERRUPT);
while (complete == RESET);
CS_Force(1);
complete = RESET;
CS_Force(0);
xferConfig.tx_data = iodir_cfg;
xferConfig.rx_data = sspreadbuf;
xferConfig.length = sizeof (iodir_cfg);
SSP_ReadWrite(LPC_SSP0, &xferConfig, SSP_TRANSFER_INTERRUPT);
while (complete == RESET);
CS_Force(1);
// Reset exit flag
exitflag = RESET;
/* Read some data from the buffer */
while (exitflag == RESET)
{
while((tmpchar[0] = _DG) == 0);
if (tmpchar[0] == 27){
/* ESC key, set exit flag */
_DBG_(menu2);
exitflag = SET;
}
else if (tmpchar[0] == 'r'){
print_menu();
} else {
if (tmpchar[0] == '1')
{
// LEDs are ON now...
CS_Force(0);
xferConfig.tx_data = iostate_on;
xferConfig.rx_data = sspreadbuf;
xferConfig.length = sizeof (iostate_on);
SSP_ReadWrite(LPC_SSP0, &xferConfig, SSP_TRANSFER_POLLING);
CS_Force(1);
}
else if (tmpchar[0] == '2')
{
// LEDs are OFF now...
CS_Force(0);
xferConfig.tx_data = iostate_off;
xferConfig.rx_data = sspreadbuf;
xferConfig.length = sizeof (iostate_off);
SSP_ReadWrite(LPC_SSP0, &xferConfig, SSP_TRANSFER_POLLING);
CS_Force(1);
}
/* Then Echo it back */
_DBG_(tmpchar);
}
}
// wait for current transmission complete - THR must be empty
while (UART_CheckBusy(LPC_UART0) == SET );
// DeInitialize UART0 peripheral
UART_DeInit(LPC_UART0);
/* Loop forever */
while(1);
return 1;
}
/*********************************************************************//**
* @brief c_entry: Main SSP program body
* @param[in] None
* @return int
**********************************************************************/
int c_entry(void)
{
#if __DMA_USED__
GPDMA_Channel_CFG_Type GPDMACfg;
#else
SSP_DATA_SETUP_Type xferConfig;
#endif
/*
* Initialize SSP pin connect
* P0.15 - SCK;
* P0.16 - SSEL
* P0.17 - MISO
* P0.18 - MOSI
*/
#if (_SSP_NO_USING == 0)
PINSEL_ConfigPin(0, 15, 2);
PINSEL_ConfigPin(0, 16, 2);
PINSEL_ConfigPin(0, 17, 2);
PINSEL_ConfigPin(0, 18, 2);
#elif (_SSP_NO_USING == 1)
PINSEL_ConfigPin(0, 6, 2);
PINSEL_ConfigPin(0, 7, 2);
PINSEL_SetFilter(0, 7, 0);
PINSEL_ConfigPin(0, 8, 2);
PINSEL_SetFilter(0, 8, 0);
PINSEL_ConfigPin(0, 9, 2);
PINSEL_SetFilter(0, 9, 0);
#else
PINSEL_ConfigPin(1, 0, 4);
PINSEL_ConfigPin(1, 8, 4);
PINSEL_ConfigPin(1, 1, 4);
PINSEL_ConfigPin(1, 4, 4);
#endif
/* Initialize debug via UART0
* – 115200bps
* – 8 data bit
* – No parity
* – 1 stop bit
* – No flow control
*/
debug_frmwrk_init();
// print welcome screen
print_menu();
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(LPC_SSP, &SSP_ConfigStruct);
// Enable SSP peripheral
SSP_Cmd(LPC_SSP, ENABLE);
_DBG_("Press '1' to start transfer...");
while (_DG != '1');
/* Initialize Buffer */
_DBG_("Init buffer");
Buffer_Init();
_DBG_("Start transfer...");
#if __DMA_USED__
/* Initialize GPDMA controller */
GPDMA_Init();
/* Setting GPDMA interrupt */
// Disable interrupt for DMA
NVIC_DisableIRQ (DMA_IRQn);
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(DMA_IRQn, ((0x01<<3)|0x01));
/* Configure GPDMA channel 0 -------------------------------------------------------------*/
/* DMA Channel 0 */
GPDMACfg.ChannelNum = 0;
// Source memory
GPDMACfg.SrcMemAddr = (uint32_t) &Tx_Buf;
// Destination memory - Not used
GPDMACfg.DstMemAddr = 0;
// Transfer size
GPDMACfg.TransferSize = sizeof(Tx_Buf);
// Transfer width - not used
GPDMACfg.TransferWidth = 0;
// Transfer type
GPDMACfg.TransferType = GPDMA_TRANSFERTYPE_M2P;
// Source connection - unused
GPDMACfg.SrcConn = 0;
// Destination connection
GPDMACfg.DstConn = SSP_TX_SRC_DMA_CONN;
// Linker List Item - unused
GPDMACfg.DMALLI = 0;
// Setup channel with given parameter
GPDMA_Setup(&GPDMACfg);
/* Reset terminal counter */
Channel0_TC = 0;
/* Reset Error counter */
Channel0_Err = 0;
/* Configure GPDMA channel 1 -------------------------------------------------------------*/
/* DMA Channel 1 */
GPDMACfg.ChannelNum = 1;
// Source memory - not used
GPDMACfg.SrcMemAddr = 0;
// Destination memory - Not used
GPDMACfg.DstMemAddr = (uint32_t) &Rx_Buf;
// Transfer size
GPDMACfg.TransferSize = sizeof(Rx_Buf);
// Transfer width - not used
GPDMACfg.TransferWidth = 0;
// Transfer type
GPDMACfg.TransferType = GPDMA_TRANSFERTYPE_P2M;
// Source connection
GPDMACfg.SrcConn = SSP_RX_SRC_DMA_CONN;
// Destination connection - not used
GPDMACfg.DstConn = 0;
// Linker List Item - unused
GPDMACfg.DMALLI = 0;
// Setup channel with given parameter
GPDMA_Setup(&GPDMACfg);
/* Reset terminal counter */
Channel1_TC = 0;
/* Reset Error counter */
Channel1_Err = 0;
// Enable Tx and Rx DMA on SSP0
SSP_DMACmd (LPC_SSP, SSP_DMA_RX, ENABLE);
SSP_DMACmd (LPC_SSP, SSP_DMA_TX, ENABLE);
// Enable GPDMA channel 0
GPDMA_ChannelCmd(0, ENABLE);
// Enable GPDMA channel 0
GPDMA_ChannelCmd(1, ENABLE);
// Enable interrupt for DMA
NVIC_EnableIRQ (DMA_IRQn);
/* Wait for GPDMA processing complete */
while (((Channel0_TC == 0) && (Channel0_Err == 0)) \
|| ((Channel1_TC == 0) && (Channel1_Err ==0)));
#else
xferConfig.tx_data = Tx_Buf;
xferConfig.rx_data = Rx_Buf;
xferConfig.length = BUFFER_SIZE;
SSP_ReadWrite(LPC_SSP, &xferConfig, SSP_TRANSFER_POLLING);
#endif
// Verify buffer after transferring
Buffer_Verify();
_DBG_("Verify complete!");
/* Loop forever */
while(1);
}
/*********************************************************************//**
* @brief c_entry: Main TI program body
* @param[in] None
* @return int
**********************************************************************/
int c_entry(void)
{
PINSEL_CFG_Type PinCfg;
/* Initialize debug via UART0
* – 115200bps
* – 8 data bit
* – No parity
* – 1 stop bit
* – No flow control
*/
debug_frmwrk_init();
// print welcome screen
print_menu();
/*
* Initialize SSP pin connect
* P0.6 - SSEL1
* P0.7 - SCK1
* P0.8 - MISO1
* P0.9 - MOSI1
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 6;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 7;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 8;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 9;
PINSEL_ConfigPin(&PinCfg);
/*
* Initialize SSP pin connect
* P0.15 - SCK
* P0.16 - SSEL
* P0.17 - MISO
* P0.18 - MOSI
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 15;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 17;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 18;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 16;
PINSEL_ConfigPin(&PinCfg);
/* Initializing Master SSP device section ------------------------------------------- */
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
// Re-configure SSP to TI frame format
SSP_ConfigStruct.FrameFormat = SSP_FRAME_TI;
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(SSPDEV_M, &SSP_ConfigStruct);
// Enable SSP peripheral
SSP_Cmd(SSPDEV_M, ENABLE);
/* Initializing Slave SSP device section ------------------------------------------- */
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
/* Re-configure mode for SSP device */
SSP_ConfigStruct.Mode = SSP_SLAVE_MODE;
// Re-configure SSP to TI frame format
SSP_ConfigStruct.FrameFormat = SSP_FRAME_TI;
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(SSPDEV_S, &SSP_ConfigStruct);
// Enable SSP peripheral
SSP_Cmd(SSPDEV_S, ENABLE);
/* Interrupt configuration section ------------------------------------------------- */
#if ((USEDSSPDEV_S == 0) || (USEDSSPDEV_M == 0))
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(SSP0_IRQn, ((0x01<<3)|0x01));
/* Enable SSP0 interrupt */
NVIC_EnableIRQ(SSP0_IRQn);
#endif
#if ((USEDSSPDEV_S == 1) || (USEDSSPDEV_M == 1))
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(SSP1_IRQn, ((0x01<<3)|0x01));
/* Enable SSP0 interrupt */
NVIC_EnableIRQ(SSP1_IRQn);
#endif
/* Initializing Buffer section ------------------------------------------------- */
Buffer_Init();
/* Start Transmit/Receive between Master and Slave ----------------------------- */
complete_S = FALSE;
complete_M = FALSE;
/* Slave must be ready first */
ssp_SlaveReadWrite(SSPDEV_S, Slave_Rx_Buf, Slave_Tx_Buf, BUFFER_SIZE);
/* Then Master can start its transferring */
ssp_MasterReadWrite(SSPDEV_M, Master_Rx_Buf, Master_Tx_Buf, BUFFER_SIZE);
/* Wait for complete */
while ((complete_S == FALSE) || (complete_M == FALSE));
/* Verify buffer */
Buffer_Verify();
_DBG_("Verify success!\n\r");
/* Loop forever */
while(1);
return 1;
}
/*********************************************************************//**
* @brief Main SSP program body
**********************************************************************/
int c_entry(void)
{
uint8_t tmpchar[2] = {0, 0};
PINSEL_CFG_Type PinCfg;
__IO FlagStatus exitflag;
SSP_DATA_SETUP_Type xferConfig;
// DeInit NVIC and SCBNVIC
NVIC_DeInit();
NVIC_SCBDeInit();
/* Configure the NVIC Preemption Priority Bits:
* two (2) bits of preemption priority, six (6) bits of sub-priority.
* Since the Number of Bits used for Priority Levels is five (5), so the
* actual bit number of sub-priority is three (3)
*/
NVIC_SetPriorityGrouping(0x05);
// Set Vector table offset value
#if (__RAM_MODE__==1)
NVIC_SetVTOR(0x10000000);
#else
NVIC_SetVTOR(0x00000000);
#endif
/*
* Initialize SPI pin connect
* P0.15 - SCK
* P0.16 - SSEL - used as GPIO
* P0.17 - MISO
* P0.18 - MOSI
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 15;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 17;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 18;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 16;
PinCfg.Funcnum = 0;
PINSEL_ConfigPin(&PinCfg);
/*
* Initialize debug via UART
*/
debug_frmwrk_init();
// print welcome screen
print_menu();
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(LPC_SSP0, &SSP_ConfigStruct);
// Initialize /CS pin to GPIO function
CS_Init();
// Enable SSP peripheral
SSP_Cmd(LPC_SSP0, ENABLE);
/* First, send some command to reset SC16IS740 chip via SSP bus interface
* note driver /CS pin to low state before transferring by CS_Enable() function
*/
CS_Force(0);
xferConfig.tx_data = iocon_cfg;
xferConfig.rx_data = sspreadbuf;
xferConfig.length = sizeof (iocon_cfg);
SSP_ReadWrite(LPC_SSP0, &xferConfig, SSP_TRANSFER_POLLING);
CS_Force(1);
CS_Force(0);
xferConfig.tx_data = iodir_cfg;
xferConfig.rx_data = sspreadbuf;
xferConfig.length = sizeof (iodir_cfg);
SSP_ReadWrite(LPC_SSP0, &xferConfig, SSP_TRANSFER_POLLING);
CS_Force(1);
// Reset exit flag
exitflag = RESET;
/* Read some data from the buffer */
while (exitflag == RESET)
{
while((tmpchar[0] = _DG) == 0);
if (tmpchar[0] == 27){
/* ESC key, set exit flag */
_DBG_(menu2);
exitflag = SET;
}
else if (tmpchar[0] == 'r'){
print_menu();
} else {
if (tmpchar[0] == '1')
{
// LEDs are ON now...
CS_Force(0);
xferConfig.tx_data = iostate_on;
xferConfig.rx_data = sspreadbuf;
xferConfig.length = sizeof (iostate_on);
SSP_ReadWrite(LPC_SSP0, &xferConfig, SSP_TRANSFER_POLLING);
CS_Force(1);
}
else if (tmpchar[0] == '2')
{
// LEDs are OFF now...
CS_Force(0);
xferConfig.tx_data = iostate_off;
xferConfig.rx_data = sspreadbuf;
xferConfig.length = sizeof (iostate_off);
SSP_ReadWrite(LPC_SSP0, &xferConfig, SSP_TRANSFER_POLLING);
CS_Force(1);
}
/* Then Echo it back */
_DBG_(tmpchar);
}
}
// wait for current transmission complete - THR must be empty
while (UART_CheckBusy(LPC_UART0) == SET);
// DeInitialize UART0 peripheral
UART_DeInit(LPC_UART0);
/* Loop forever */
while(1);
return 1;
}
portBASE_TYPE FreeRTOS_SSP_ioctl( Peripheral_Descriptor_t const pxPeripheral, uint32_t ulRequest, void *pvValue )
{
Peripheral_Control_t * const pxPeripheralControl = ( Peripheral_Control_t * const ) pxPeripheral;
uint32_t ulValue = ( uint32_t ) pvValue, ulInitSSP = pdFALSE;
const int8_t cPeripheralNumber = diGET_PERIPHERAL_NUMBER( ( ( Peripheral_Control_t * const ) pxPeripheral ) );
LPC_SSP_TypeDef * pxSSP = ( LPC_SSP_TypeDef * ) diGET_PERIPHERAL_BASE_ADDRESS( ( ( Peripheral_Control_t * const ) pxPeripheral ) );
taskENTER_CRITICAL();
{
switch( ulRequest )
{
case ioctlUSE_INTERRUPTS :
/* Sanity check the array index. */
configASSERT( cPeripheralNumber < ( int8_t ) ( sizeof( xIRQ ) / sizeof( IRQn_Type ) ) );
if( ulValue == pdFALSE )
{
NVIC_DisableIRQ( xIRQ[ cPeripheralNumber ] );
}
else
{
/* Enable the Rx interrupts only. New data is sent if an
Rx interrupt makes space in the FIFO, so Tx interrupts are
not required. */
SSP_IntConfig( LPC_SSP1, SSP_INTCFG_TX, DISABLE );
SSP_IntConfig( pxSSP, sspALL_SSP_RX_INTERRUPTS, ENABLE );
/* Enable the interrupt and set its priority to the minimum
interrupt priority. A separate command can be issued to raise
the priority if desired. */
NVIC_SetPriority( xIRQ[ cPeripheralNumber ], configSPI_INTERRUPT_PRIORITY );
NVIC_EnableIRQ( xIRQ[ cPeripheralNumber ] );
/* If the Rx is configured to use interrupts, remember the
transfer control structure that should be used. A reference
to the Tx transfer control structure is taken when a write()
operation is actually performed. */
pxRxTransferControlStructs[ cPeripheralNumber ] = pxPeripheralControl->pxRxControl;
}
break;
case ioctlSET_INTERRUPT_PRIORITY :
/* The ISR uses ISR safe FreeRTOS API functions, so the priority
being set must be lower than (ie numerically larger than)
configMAX_LIBRARY_INTERRUPT_PRIORITY. */
configASSERT( ulValue < configMAX_LIBRARY_INTERRUPT_PRIORITY );
NVIC_SetPriority( xIRQ[ cPeripheralNumber ], ulValue );
break;
case ioctlSET_SPEED : /* In Hz. */
xSSPConfigurations[ cPeripheralNumber ].ClockRate = ulValue;
ulInitSSP = pdTRUE;
break;
case ioctlSET_SPI_DATA_BITS : /* 4 to 16. */
xSSPConfigurations[ cPeripheralNumber ].Databit = ulValue;
ulInitSSP = pdTRUE;
break;
case ioctlSET_SPI_CLOCK_PHASE : /* SSP_CPHA_FIRST or SSPCPHA_SECOND */
xSSPConfigurations[ cPeripheralNumber ].CPHA = ulValue;
ulInitSSP = pdTRUE;
break;
case ioctlSET_SPI_CLOCK_POLARITY : /* SSP_CPOL_HI or SSP_CPOL_LO. */
xSSPConfigurations[ cPeripheralNumber ].CPOL = ulValue;
break;
case ioctlSET_SPI_MODE : /* SSP_MASTER_MODE or SSP_SLAVE_MODE. */
xSSPConfigurations[ cPeripheralNumber ].Mode = ulValue;
break;
case ioctlSET_SSP_FRAME_FORMAT : /* SSP_FRAME_SPI or SSP_FRAME_TI or SSP_FRAME_MICROWIRE. */
xSSPConfigurations[ cPeripheralNumber ].FrameFormat = ulValue;
break;
}
if( ulInitSSP == pdTRUE )
{
SSP_Cmd( pxSSP, DISABLE );
SSP_DeInit( pxSSP );
SSP_Init( pxSSP, &( xSSPConfigurations[ cPeripheralNumber ] ) );
SSP_Cmd( pxSSP, ENABLE );
}
}
taskEXIT_CRITICAL();
return pdPASS;
}
portBASE_TYPE FreeRTOS_SSP_open( Peripheral_Control_t * const pxPeripheralControl )
{
PINSEL_CFG_Type xPinConfig;
portBASE_TYPE xReturn = pdFAIL;
LPC_SSP_TypeDef * const pxSSP = ( LPC_SSP_TypeDef * const ) diGET_PERIPHERAL_BASE_ADDRESS( pxPeripheralControl );
SSP_DATA_SETUP_Type *pxSSPTransferDefinition;
const int8_t cPeripheralNumber = diGET_PERIPHERAL_NUMBER( pxPeripheralControl );
volatile uint16_t usJunkIt;
/* Sanity check the peripheral number. */
if( cPeripheralNumber < boardNUM_SSPS )
{
/* Polled mode is used by default. Create the structure used to
transfer SSP data in polled mode. */
pxSSPTransferDefinition = ( SSP_DATA_SETUP_Type * ) pvPortMalloc( sizeof( SSP_DATA_SETUP_Type ) );
if( pxSSPTransferDefinition != NULL )
{
/* Create the transfer control structures in which references to
pxSSPTransferDefinition will be stored. */
vIOUtilsCreateTransferControlStructure( &( pxPeripheralControl->pxTxControl ) );
vIOUtilsCreateTransferControlStructure( &( pxPeripheralControl->pxRxControl ) );
if( ( pxPeripheralControl->pxTxControl != NULL ) && ( pxPeripheralControl->pxTxControl != NULL ) )
{
pxPeripheralControl->read = FreeRTOS_SSP_read;
pxPeripheralControl->write = FreeRTOS_SSP_write;
pxPeripheralControl->ioctl = FreeRTOS_SSP_ioctl;
pxPeripheralControl->pxTxControl->pvTransferState = pxSSPTransferDefinition;
pxPeripheralControl->pxTxControl->ucType = ioctlUSE_POLLED_TX;
pxPeripheralControl->pxRxControl->pvTransferState = NULL;
pxPeripheralControl->pxRxControl->ucType = ioctlUSE_POLLED_RX;
taskENTER_CRITICAL();
{
/* Setup the pins for the SSP being used. */
boardCONFIGURE_SSP_PINS( cPeripheralNumber, xPinConfig );
/* Set up the default SSP configuration. */
SSP_ConfigStructInit( &( xSSPConfigurations[ cPeripheralNumber ] ) );
SSP_Init( pxSSP, &( xSSPConfigurations[ cPeripheralNumber ] ) );
SSP_Cmd( pxSSP, ENABLE );
/* Clear data in Rx Fifo. */
while( ( pxSSP->SR & SSP_SR_RNE ) != 0 )
{
usJunkIt = pxSSP->DR;
}
}
taskEXIT_CRITICAL();
xReturn = pdPASS;
}
else
{
/* Could not create one of other transfer control structure,
so free the created LPC_SSP_TypeDef typedef structures and any
transfer control structures that were created before
exiting. */
if( pxPeripheralControl->pxTxControl != NULL )
{
vPortFree( pxPeripheralControl->pxTxControl );
pxPeripheralControl->pxTxControl = NULL;
}
if( pxPeripheralControl->pxRxControl != NULL )
{
vPortFree( pxPeripheralControl->pxRxControl );
pxPeripheralControl->pxRxControl = NULL;
}
vPortFree( pxSSPTransferDefinition );
}
}
}
return xReturn;
}
/*********************************************************************//**
* @brief Initialize and Configure SSP device
* @param[in] SSPx SSP peripheral selected, should be:
* - LPC_SSP0: SSP0 peripheral
* - LPC_SSP1: SSP1 peripheral
* @return None
***********************************************************************/
void SSP_Config (LPC_SSP_TypeDef *SSPx)
{
// Pin configuration for SSP
PINSEL_CFG_Type PinCfg;
// SSP Configuration structure variable
SSP_CFG_Type SSP_ConfigStruct;
if(SSPx == LPC_SSP0)
{
/*
* Initialize SSP pin connect
* P0.15 - SCK0;
* P0.16 - SSEL0 - used as GPIO
* P0.17 - MISO0
* P0.18 - MOSI0
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 15;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 17;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 18;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 16;
PinCfg.Funcnum = 0;
PINSEL_ConfigPin(&PinCfg);
}
else if(SSPx == LPC_SSP1)
{
/*
* Initialize SSP pin connect
* P0.6 - SSEL1 - used as GPIO
* P0.7 - SCK1
* P0.8 - MISO1
* P0.9 - MOSI1
*/
PinCfg.Funcnum = 2;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 7;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 8;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 9;
PINSEL_ConfigPin(&PinCfg);
PinCfg.Pinnum = 6;
PinCfg.Funcnum = 0;
PINSEL_ConfigPin(&PinCfg);
}
// initialize SSP configuration structure to default
SSP_ConfigStructInit(&SSP_ConfigStruct);
SSP_ConfigStruct.ClockRate = 3000000;
SSP_ConfigStruct.Databit = SSP_DATABIT_8;
// Initialize SSP peripheral with parameter given in structure above
SSP_Init(SSPx, &SSP_ConfigStruct);
CS_Init1(SSPx); // Chip Select Init
// Enable SSP peripheral
SSP_Cmd(SSPx, ENABLE);
Buffer_Init1(); // Empty Buffer
}
/*******************************************************************************
* Function Name : main
* Description : Main program
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main()
{
#ifdef DEBUG
debug();
#endif
SCU_MCLKSourceConfig(SCU_MCLK_OSC); /*Use OSC as the default clock source*/
SCU_PCLKDivisorConfig(SCU_PCLK_Div1); /* ARM Peripheral bus clokdivisor = 1*/
/* SCU configuration */
SCU_Configuration();
/* GPIO pins configuration */
GPIO_Configuration();
/* SSP0 configuration */
SSP_DeInit(SSP0);
SSP_InitStructure.SSP_FrameFormat = SSP_FrameFormat_Motorola;
SSP_InitStructure.SSP_Mode = SSP_Mode_Master;
SSP_InitStructure.SSP_CPOL = SSP_CPOL_High;
SSP_InitStructure.SSP_CPHA = SSP_CPHA_2Edge;
SSP_InitStructure.SSP_DataSize = SSP_DataSize_8b;
SSP_InitStructure.SSP_ClockRate = 5;
SSP_InitStructure.SSP_ClockPrescaler = 2;
SSP_Init(SSP0, &SSP_InitStructure);
/* SSP1 configuration */
SSP_DeInit(SSP1);
SSP_InitStructure.SSP_Mode = SSP_Mode_Slave;
SSP_InitStructure.SSP_SlaveOutput = SSP_SlaveOutput_Enable;
SSP_Init(SSP1, &SSP_InitStructure);
/* SSP0 enable */
SSP_Cmd(SSP0, ENABLE);
/* SSP1 enable */
SSP_Cmd(SSP1, ENABLE);
/* Master to slave transfer procedure */
while(Tx_Idx<32)
{
SSP_SendData(SSP0, SSP0_Buffer_Tx[Tx_Idx++]);
while(SSP_GetFlagStatus(SSP1, SSP_FLAG_RxFifoNotEmpty)==RESET);
SSP1_Buffer_Rx[Rx_Idx++] = SSP_ReceiveData(SSP1);
}
/* Check the received data with the send ones */
TransferStatus1 = Buffercmp(SSP0_Buffer_Tx, SSP1_Buffer_Rx, 32);
/* TransferStatus = PASSED, if the data transmitted from SSP0 and
received by SSP1 are the same */
/* TransferStatus = FAILED, if the data transmitted from SSP0 and
received by SSP1 are different */
/* Clear SSP0 receive Fifo */
for(k=0; k<8; k++) SSP0_Buffer_Rx[k] = SSP_ReceiveData(SSP0);
/* Reset counters */
Tx_Idx=Rx_Idx=0;
/* Slave to master transfer procedure */
while(Tx_Idx<32)
{
SSP_SendData(SSP1, SSP1_Buffer_Tx[Tx_Idx]);
/* send a dummy bit to generate the clock */
SSP_SendData(SSP0, SSP0_Buffer_Tx[Tx_Idx++]);
while(SSP_GetFlagStatus(SSP0, SSP_FLAG_RxFifoNotEmpty)==RESET);
SSP0_Buffer_Rx[Rx_Idx++] = SSP_ReceiveData(SSP0);
}
/* Check the received data with the send ones */
TransferStatus2 = Buffercmp(SSP1_Buffer_Tx, SSP0_Buffer_Rx, 32);
/* TransferStatus = PASSED, if the data transmitted from SSP1 and
received by SSP0 are the same */
/* TransferStatus = FAILED, if the data transmitted from SSP1 and
received by SSP0 are different */
while(1);
}
