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);
}
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);
}
/*******************************************************************************
* 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);
}
/*******************************************************************************
* 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 ;
}
/*******************************************************************************
* 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 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 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;
}
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 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 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 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 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
}
/*********************************************************************//**
* @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 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)
{
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;
}
