/*********************************************************************//** * @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; }