/*********************************************************************//**
* @brief Initialize and Configure SPI device
* @param[in] SPIx SPI peripheral definition, should be LPC_SPI
* @return None
***********************************************************************/
void SPI_Config (LPC_SPI_TypeDef *SPIx)
{
// Pin configuration for SPI
PINSEL_CFG_Type PinCfg;
// SPI Configuration structure variable
SPI_CFG_Type SPI_ConfigStruct;
if(SPIx == LPC_SPI)
{
/*
* Initialize SPI pin connect
* P0.15 - SCK;
* P0.16 - SSEL - used as GPIO
* P0.17 - MISO
* P0.18 - MOSI
*/
PinCfg.Funcnum = 3;
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);
}
/*
SPI_ConfigStruct.CPHA = SPI_CPHA_SECOND;
SPI_ConfigStruct.CPOL = SPI_CPOL_LO;
SPI_ConfigStruct.ClockRate = SPI_CLOCK;
SPI_ConfigStruct.DataOrder = SPI_DATA_MSB_FIRST;
SPI_ConfigStruct.Databit = SPI_DATABIT_8;
SPI_ConfigStruct.Mode = SPI_MASTER_MODE;*/
// initialize SPI configuration structure to default
SPI_ConfigStructInit(&SPI_ConfigStruct);
SPI_ConfigStruct.ClockRate = 3000000;
SPI_ConfigStruct.Databit = SPI_DATABIT_8;
// Initialize SPI peripheral with parameter given in structure above
SPI_Init(LPC_SPI, &SPI_ConfigStruct);
CS_Init(); // Chip Select Init
Buffer_Init(); // Empty Buffer
}
void gpio_init() {
SPI_CFG_Type spiInitialization;
PINSEL_CFG_Type PinSelCfg;
/*-----------------------------------------------------------------
*--------------------------PORT 0---------------------------------
*-----------------------------------------------------------------
*/
GPIO_SetDir(0, 0xFFFFFFFF, OUTPUT);
PinSelCfg.Portnum = PINSEL_PORT_0;
// PinSelCfg.Pinnum = PINSEL_PIN_0;
// PinSelCfg.Funcnum = PINSEL_FUNC_3;
// PinSelCfg.OpenDrain = 0;
// PinSelCfg.Pinmode = 0;
// PINSEL_ConfigPin(&PinSelCfg);
//
// PinSelCfg.Pinnum = PINSEL_PIN_1;
// PINSEL_ConfigPin(&PinSelCfg);
PinSelCfg.Pinnum = PINSEL_PIN_2;
PinSelCfg.Funcnum = PINSEL_FUNC_1;
PinSelCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinSelCfg.Pinmode = PINSEL_PINMODE_PULLUP;
PINSEL_ConfigPin(&PinSelCfg);
PinSelCfg.Pinnum = PINSEL_PIN_3;
PINSEL_ConfigPin(&PinSelCfg);
GPIO_SetDir(0, 0x01<<22, INPUT);
PinSelCfg.Pinnum = PINSEL_PIN_10;
PinSelCfg.Funcnum = PINSEL_FUNC_2;
PinSelCfg.OpenDrain = PINSEL_PINMODE_OPENDRAIN;
PinSelCfg.Pinmode = PINSEL_PINMODE_TRISTATE;
PINSEL_ConfigPin(&PinSelCfg);
PinSelCfg.Pinnum = PINSEL_PIN_11;
PINSEL_ConfigPin(&PinSelCfg);
//SET FMC_I2C1 in Hi-Z
GPIO_SetDir(0, 0x01<<19, INPUT);
GPIO_SetDir(0, 0x01<<20, INPUT);
// PinSelCfg.Pinmode = PINSEL_PINMODE_TRISTATE;
// PinSelCfg.Funcnum = PINSEL_FUNC_3;
// PinSelCfg.Pinnum = PINSEL_PIN_19;
// PINSEL_ConfigPin(&PinSelCfg);
//
// PinSelCfg.Pinnum = PINSEL_PIN_20;
// PINSEL_ConfigPin(&PinSelCfg);
PinSelCfg.Funcnum = PINSEL_FUNC_1;
PinSelCfg.OpenDrain = PINSEL_PINMODE_OPENDRAIN;
PinSelCfg.Pinnum = PINSEL_PIN_27;
PINSEL_ConfigPin(&PinSelCfg);
PinSelCfg.Pinnum = PINSEL_PIN_28;
PINSEL_ConfigPin(&PinSelCfg);
PinSelCfg.Pinnum = PINSEL_PIN_29;
PinSelCfg.Funcnum = PINSEL_FUNC_1;
PinSelCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinSelCfg.Pinmode = PINSEL_PINMODE_TRISTATE;
PINSEL_ConfigPin(&PinSelCfg);
PinSelCfg.Pinnum = PINSEL_PIN_30;
PINSEL_ConfigPin(&PinSelCfg);
/*-----------------------------------------------------------------
*---------------------END OF PORT 0-------------------------------
*-----------------------------------------------------------------
*-----------------------------------------------------------------
* ------------------------PORT 1----------------------------------
* ----------------------------------------------------------------
*/
GPIO_SetDir(1, 0xFFFFFFFF, OUTPUT);
GPIO_SetDir(1, ( 0x01<<IPMI_GA0 | 0x01<<IPMI_GA1 | 0x01<<IPMI_GA2 ), INPUT);
GPIO_SetValue(LED_PORT, (0x01<<_IPMI_BLLED|0x01<<_IPMI_LED1|0x01<<_IPMI_LED2) );
// PinSelCfg.Portnum = PINSEL_PORT_1;
// PinSelCfg.Pinnum = PINSEL_PIN_30;
// PinSelCfg.Funcnum = PINSEL_FUNC_2;
// PinSelCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
// PinSelCfg.Pinmode = PINSEL_PINMODE_TRISTATE;
// PINSEL_ConfigPin(&PinSelCfg);
GPIO_SetDir(ENA_PORT, 0x001<<ENA_PIN, INPUT);
GPIO_SetDir(2, 0x0400, INPUT);
GPIO_SetDir(IPMI_EJTHDL_PORT, 0x001<<IPMI_EJTHDL, INPUT);
GPIO_SetDir(1, 0x01<<22, INPUT);
GPIO_SetDir(PGOOD_PORT, 0x01<<PGOOD_PIN, INPUT);
gpio_clr_gpio_pin(_IPMI_BLLED, LED_PORT); // turn on blue LED ASAP
gpio_clr_gpio_pin(UC_PWRENOUT, UC_PWRENOUT_PORT); // turn off power enable
PinSelCfg.Pinnum = PINSEL_PIN_15;
PinSelCfg.Portnum = PINSEL_PORT_0;
PinSelCfg.Pinmode = PINSEL_PINMODE_PULLUP;
PinSelCfg.Funcnum = PINSEL_FUNC_3;
PinSelCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PINSEL_ConfigPin(&PinSelCfg);
PinSelCfg.Pinnum = PINSEL_PIN_18;
PINSEL_ConfigPin(&PinSelCfg);
GPIO_SetDir(1, 0x01<<26, OUTPUT);
GPIO_SetValue(1, 0x01<<26);
GPIO_SetDir(0, 0x01<<21, OUTPUT);
GPIO_SetDir(0, 0x01<<16, OUTPUT);
GPIO_SetValue(0, 0x01<<16);
GPIO_SetValue(0, 0x01<<21);
GPIO_SetDir(PORT_EN_0, 0x01<<EN_P1V2, OUTPUT);
GPIO_SetDir(PORT_EN_0, 0x01<<EN_P1V8, OUTPUT);
GPIO_SetDir(PORT_EN_0, 0x01<<EN_FMC2_P3V3, OUTPUT);
GPIO_SetDir(PORT_EN_0, 0x01<<EN_FMC1_P3V3, OUTPUT);
GPIO_SetDir(PORT_EN_0, 0x01<<EM_FMC1_P12V, OUTPUT);
GPIO_SetDir(PORT_EN_0, 0x01<<EN_FMC2_P12V, OUTPUT);
GPIO_SetDir(PORT_EN_1, 0x01<<EN_FMC1_PVADJ, OUTPUT);
GPIO_SetDir(PORT_EN_1, 0x01<<EN_FMC2_PVADJ, OUTPUT);
GPIO_SetDir(PORT_EN_1, 0x01<<EN_P3V3, OUTPUT);
GPIO_SetDir(PORT_EN_1, 0x01<<EN_1V5_VTT, OUTPUT);
GPIO_SetDir(PORT_EN_1, 0x01<<EN_RTM_CONN, OUTPUT);
GPIO_SetDir(PORT_EN_0, 0x01<<RTM_PRESENCE, INPUT);
GPIO_SetDir(PORT_EN_3, 0x01<<EN_P1V0, OUTPUT);
setDC_DC_ConvertersON();
spiInitialization.CPOL = SPI_CPOL_LO;
spiInitialization.CPHA = SPI_CPHA_FIRST;
spiInitialization.Databit = SPI_DATABIT_10;
spiInitialization.DataOrder = SPI_DATA_MSB_FIRST;
spiInitialization.ClockRate = 10000000;
SPI_Init(LPC_SPI, &spiInitialization);
LPC_SPI->SPCR = 0xA24;
GPIO_ClearValue(0, 0x01<<16);
SPI_SendData(LPC_SPI, 0x0125);
while(! ( SPI_CheckStatus( SPI_GetStatus(LPC_SPI), SPI_STAT_SPIF) ));
GPIO_SetValue(0, 0x01<<16);
GPIO_ClearValue(0, 0x01<<16);
SPI_SendData(LPC_SPI, 0x0025);
while(! ( SPI_CheckStatus( SPI_GetStatus(LPC_SPI), SPI_STAT_SPIF) ));
GPIO_SetValue(0, 0x01<<16);
//SCANSTA JTAG
GPIO_SetDir(2, 0x0FF, OUTPUT);
GPIO_SetValue(2, 0x080);
GPIO_ClearValue(2, 0x07F);
SPI_ConfigStructInit(&spiInitialization);
//FPGA_SPI
GPIO_SetDir(1, 0x01<<20, INPUT);
GPIO_SetDir(1, 0x01<<21, INPUT);
GPIO_SetDir(1, 0x01<<23, INPUT);
GPIO_SetDir(1, 0x01<<24, INPUT);
// SET PROGRAM_B AS OUTPUT
// AND SET THIS PIN HIGH
GPIO_SetDir(0, 0x01<<17, INPUT);
// SET DONE PIN AS INPUT
// turn on pull-up
GPIO_SetDir(0, 0x01<<22, INPUT);
////////////////////////////////////////
// P0_6 - FCS_B - use as FPGA - RST
////////////////////////////////////////
GPIO_SetDir(0, 0x01<<6, INPUT);
//GPIO_ClearValue(0, 0x01<<6);
///////////////////////////////////////
GPIO_SetDir(0, 0x01<<7, INPUT);
GPIO_SetDir(0, 0x01<<8, INPUT);
#ifdef AMC_CPU_COM_Express
GPIO_SetDir(0, 0x01<<9, OUTPUT);
#else
GPIO_SetDir(0, 0x01<<9, INPUT);
#endif
///////////////////////////////////////
//FMC STATUS PORTS
///////////////////////////////////////
GPIO_SetDir(1, 0x1<<14, INPUT);
GPIO_SetDir(1, 0x1<<15, INPUT);
GPIO_SetDir(1, 0x1<<16, INPUT);
GPIO_SetDir(1, 0x1<<17, INPUT);
GPIO_SetDir(1, 0x1<<18, INPUT);
GPIO_SetDir(1, 0x1<<19, INPUT);
///////////////////////////////////////
// FPGA Reset Button
EXTI_InitTypeDef EXTICfg;
/* Initialize EXT pin and register */
/* P2.12 as /EINT2*/
PinSelCfg.Funcnum = PINSEL_FUNC_1;
PinSelCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinSelCfg.Pinmode = PINSEL_PINMODE_PULLUP;
PinSelCfg.Pinnum = FPGA_RST_SW;
PinSelCfg.Portnum = FPGA_RST_SW_PORT;
PINSEL_ConfigPin(&PinSelCfg);
PinSelCfg.Funcnum = PINSEL_FUNC_0;
PinSelCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinSelCfg.Pinmode = PINSEL_PINMODE_PULLUP;
PinSelCfg.Pinnum = FPGA_RESETn;
PinSelCfg.Portnum = FPGA_RESETn_PORT;
PINSEL_ConfigPin(&PinSelCfg);
GPIO_SetDir(FPGA_RESETn_PORT, 1<<FPGA_RESETn, OUTPUT);
EXTI_Init();
EXTICfg.EXTI_Line = EXTI_EINT2;
EXTICfg.EXTI_Mode = EXTI_MODE_EDGE_SENSITIVE;
EXTICfg.EXTI_polarity = EXTI_POLARITY_LOW_ACTIVE_OR_FALLING_EDGE;
EXTI_ClearEXTIFlag(EXTI_EINT2);
EXTI_Config(&EXTICfg);
GPIO_IntCmd(0, 0x01 << FPGA_RST_SW, 1);
NVIC_SetPriorityGrouping(0);
NVIC_SetPriority(EINT2_IRQn, 4);
NVIC_EnableIRQ(EINT2_IRQn);
}
/*********************************************************************//**
* @brief c_entry: Main SPI 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 = 3;
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 SPI configuration structure to default
SPI_ConfigStructInit(&SPI_ConfigStruct);
// Initialize SPI peripheral with parameter given in structure above
SPI_Init(LPC_SPI, &SPI_ConfigStruct);
// Initialize /CS pin to GPIO function
CS_Init();
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(SPI_IRQn, ((0x01<<3)|0x01));
/* Enable SSP0 interrupt */
NVIC_EnableIRQ(SPI_IRQn);
/* First, send some command to reset SC16IS740 chip via SPI 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 = spireadbuf;
xferConfig.length = sizeof (iocon_cfg);
SPI_ReadWrite(LPC_SPI, &xferConfig, SPI_TRANSFER_INTERRUPT);
while (complete == RESET);
CS_Force(1);
complete = RESET;
CS_Force(0);
xferConfig.tx_data = iodir_cfg;
xferConfig.rx_data = spireadbuf;
xferConfig.length = sizeof (iodir_cfg);
SPI_ReadWrite(LPC_SPI, &xferConfig, SPI_TRANSFER_INTERRUPT);
while (complete == RESET);
CS_Force(1);
// Reset exit flag
exitflag = RESET;
// Start to use SPI polling mode
/* 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 = spireadbuf;
xferConfig.length = sizeof (iostate_on);
SPI_ReadWrite(LPC_SPI, &xferConfig, SPI_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 = spireadbuf;
xferConfig.length = sizeof (iostate_off);
SPI_ReadWrite(LPC_SPI, &xferConfig, SPI_TRANSFER_POLLING);
CS_Force(1);
}
/* Then Echo it back */
_DBG_(tmpchar);
}
}
// DeInitialize UART0 peripheral
SPI_DeInit(LPC_SPI);
/* Loop forever */
while(1);
return 1;
}
