/******************** (C) COPYRIGHT 2008 STMicroelectronics ******************** * File Name : main.c * Author : MCD Application Team * Version : V2.0.1 * Date : 06/13/2008 * Description : Main program body ******************************************************************************** * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. * AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE * CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING * INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. *******************************************************************************/ /* Includes ------------------------------------------------------------------*/ #include "stm32f10x_lib.h" /* Private typedef -----------------------------------------------------------*/ typedef enum { FAILED = 0, PASSED = !FAILED} TestStatus; /* Private define ------------------------------------------------------------*/ #define SPI1_DR_Address 0x4001300C #define SPI2_DR_Address 0x4000380C #define BufferSize 32 #define CRCPolynomial 7 /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ SPI_InitTypeDef SPI_InitStructure; DMA_InitTypeDef DMA_InitStructure; ErrorStatus HSEStartUpStatus; u8 SPI1_Buffer_Rx[BufferSize], SPI2_Buffer_Rx[BufferSize]; u8 SPI1CRCValue = 0, SPI2CRCValue = 0; volatile TestStatus TransferStatus1 = FAILED, TransferStatus2 = FAILED; u8 SPI1_Buffer_Tx[BufferSize] = {0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09, 0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x12, 0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B, 0x1C,0x1D,0x1E,0x1F,0x20}; u8 SPI2_Buffer_Tx[BufferSize] = {0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59, 0x5A,0x5B,0x5C,0x5D,0x5E,0x5F,0x60,0x61,0x62, 0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,0x6B, 0x6C,0x6D,0x6E,0x6F,0x70}; /* Private function prototypes -----------------------------------------------*/ void RCC_Configuration(void); void GPIO_Configuration(void); void NVIC_Configuration(void); TestStatus Buffercmp(u8* pBuffer, u8* pBuffer1, u16 BufferLength); /* Private functions ---------------------------------------------------------*/ /******************************************************************************* * Function Name : main * Description : Main program * Input : None * Output : None * Return : None *******************************************************************************/ int main(void) { #ifdef DEBUG debug(); #endif /* System Clocks Configuration */ RCC_Configuration(); /* NVIC configuration */ NVIC_Configuration(); /* Configure the GPIO ports */ GPIO_Configuration(); /* SPI1 configuration ------------------------------------------------------*/ SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; SPI_InitStructure.SPI_Mode = SPI_Mode_Master; SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low; SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8; SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; SPI_InitStructure.SPI_CRCPolynomial = CRCPolynomial; SPI_Init(SPI1, &SPI_InitStructure); /* SPI2 configuration ------------------------------------------------------*/ SPI_InitStructure.SPI_Mode = SPI_Mode_Slave; SPI_Init(SPI2, &SPI_InitStructure); /* DMA1 Channel2 configuration ----------------------------------------------*/ DMA_DeInit(DMA1_Channel2); DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)SPI1_DR_Address; DMA_InitStructure.DMA_MemoryBaseAddr = (u32)SPI1_Buffer_Rx; DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; DMA_InitStructure.DMA_BufferSize = BufferSize; DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte; DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte; DMA_InitStructure.DMA_Mode = DMA_Mode_Normal; DMA_InitStructure.DMA_Priority = DMA_Priority_High; DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; DMA_Init(DMA1_Channel2, &DMA_InitStructure); /* DMA1 Channel3 configuration ----------------------------------------------*/ DMA_DeInit(DMA1_Channel3); DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)SPI1_DR_Address; DMA_InitStructure.DMA_MemoryBaseAddr = (u32)SPI1_Buffer_Tx; DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; DMA_InitStructure.DMA_Priority = DMA_Priority_Low; DMA_Init(DMA1_Channel3, &DMA_InitStructure); /* DMA1 Channel4 configuration ----------------------------------------------*/ DMA_DeInit(DMA1_Channel4); DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)SPI2_DR_Address; DMA_InitStructure.DMA_MemoryBaseAddr = (u32)SPI2_Buffer_Rx; DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh; DMA_Init(DMA1_Channel4, &DMA_InitStructure); /* DMA1 Channel5 configuration ----------------------------------------------*/ DMA_DeInit(DMA1_Channel5); DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)SPI2_DR_Address; DMA_InitStructure.DMA_MemoryBaseAddr = (u32)SPI2_Buffer_Tx; DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; DMA_InitStructure.DMA_Priority = DMA_Priority_Medium; DMA_Init(DMA1_Channel5, &DMA_InitStructure); /* Enable SPI1 DMA Tx request */ SPI_I2S_DMACmd(SPI1, SPI_I2S_DMAReq_Tx, ENABLE); /* Enable SPI1 DMA Rx request */ SPI_I2S_DMACmd(SPI1, SPI_I2S_DMAReq_Rx, ENABLE); /* Enable SPI2 DMA Tx request */ SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Tx, ENABLE); /* Enable SPI2 DMA Rx request */ SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Rx, ENABLE); /* Enable SPI1 CRC calculation */ SPI_CalculateCRC(SPI1, ENABLE); /* Enable SPI2 CRC calculation */ SPI_CalculateCRC(SPI2, ENABLE); /* Enable SPI2 */ SPI_Cmd(SPI2, ENABLE); /* Enable SPI1 */ SPI_Cmd(SPI1, ENABLE); /* Enable DMA1 channel5, channel4, channel3 and channel2 */ DMA_Cmd(DMA1_Channel2, ENABLE); DMA_Cmd(DMA1_Channel4, ENABLE); DMA_Cmd(DMA1_Channel5, ENABLE); DMA_Cmd(DMA1_Channel3, ENABLE); /* Transfer complete */ while(!DMA_GetFlagStatus(DMA1_FLAG_TC2)); while(!DMA_GetFlagStatus(DMA1_FLAG_TC4)); while(!DMA_GetFlagStatus(DMA1_FLAG_TC5)); while(!DMA_GetFlagStatus(DMA1_FLAG_TC3)); /* Wait for SPI1 data reception: CRC transmitted by SPI2 */ while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE)==RESET); /* Wait for SPI2 data reception: CRC transmitted by SPI1 */ while(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_RXNE)==RESET); /* Check the corectness of written dada */ TransferStatus1 = Buffercmp(SPI2_Buffer_Rx, SPI1_Buffer_Tx, BufferSize); TransferStatus2 = Buffercmp(SPI1_Buffer_Rx, SPI2_Buffer_Tx, BufferSize); /* TransferStatus1, TransferStatus2 = PASSED, if the data transmitted and received are correct */ /* TransferStatus1, TransferStatus2 = FAILED, if the data transmitted and received are different */ /* Test on the SPI1 CRCR ERROR flag */ if ((SPI_I2S_GetFlagStatus(SPI1, SPI_FLAG_CRCERR)) != RESET) { TransferStatus1 = FAILED; } /* Test on the SPI2 CRCR ERROR flag */ if ((SPI_I2S_GetFlagStatus(SPI2, SPI_FLAG_CRCERR)) != RESET) { TransferStatus2 = FAILED; } /* Read SPI1 received CRC value */ SPI1CRCValue = SPI_I2S_ReceiveData(SPI1); /* Read SPI2 received CRC value */ SPI2CRCValue = SPI_I2S_ReceiveData(SPI2); while (1) { } } /******************************************************************************* * Function Name : RCC_Configuration * Description : Configures the different system clocks. * Input : None * Output : None * Return : None *******************************************************************************/ void RCC_Configuration(void) { /* RCC system reset(for debug purpose) */ RCC_DeInit(); /* Enable HSE */ RCC_HSEConfig(RCC_HSE_ON); /* Wait till HSE is ready */ HSEStartUpStatus = RCC_WaitForHSEStartUp(); if(HSEStartUpStatus == SUCCESS) { /* Enable Prefetch Buffer */ FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); /* Flash 2 wait state */ FLASH_SetLatency(FLASH_Latency_2); /* HCLK = SYSCLK */ RCC_HCLKConfig(RCC_SYSCLK_Div1); /* PCLK2 = HCLK/2 */ RCC_PCLK2Config(RCC_HCLK_Div2); /* PCLK1 = HCLK/2 */ RCC_PCLK1Config(RCC_HCLK_Div2); /* PLLCLK = 8MHz * 9 = 72 MHz */ RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); /* Enable PLL */ RCC_PLLCmd(ENABLE); /* Wait till PLL is ready */ while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) { } /* Select PLL as system clock source */ RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); /* Wait till PLL is used as system clock source */ while(RCC_GetSYSCLKSource() != 0x08) { } } /* Enable peripheral clocks --------------------------------------------------*/ /* Enable DMA1 clock */ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); /* Enable GPIOA, GPIOB and SPI1 clock */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_SPI1, ENABLE); /* Enable SPI2 Periph clock */ RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE); } /******************************************************************************* * Function Name : GPIO_Configuration * Description : Configures the different GPIO ports. * Input : None * Output : None * Return : None *******************************************************************************/ void GPIO_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; /* Configure SPI1 pins: SCK, MISO and MOSI */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOA, &GPIO_InitStructure); /* Configure SPI2 pins: SCK, MISO and MOSI */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15; GPIO_Init(GPIOB, &GPIO_InitStructure); } /******************************************************************************* * Function Name : NVIC_Configuration * Description : Configures Vector Table base location. * Input : None * Output : None * Return : None *******************************************************************************/ void NVIC_Configuration(void) { #ifdef VECT_TAB_RAM /* Set the Vector Table base location at 0x20000000 */ NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0); #else /* VECT_TAB_FLASH */ /* Set the Vector Table base location at 0x08000000 */ NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0); #endif } /******************************************************************************* * Function Name : Buffercmp * Description : Compares two buffers. * Input : - pBuffer, pBuffer1: buffers to be compared. * : - BufferLength: buffer's length * Output : None * Return : PASSED: pBuffer identical to pBuffer1 * FAILED: pBuffer differs from pBuffer1 *******************************************************************************/ TestStatus Buffercmp(u8* pBuffer, u8* pBuffer1, u16 BufferLength) { while(BufferLength--) { if(*pBuffer != *pBuffer1) { return FAILED; } pBuffer++; pBuffer1++; } return PASSED; } #ifdef DEBUG /******************************************************************************* * Function Name : assert_failed * Description : Reports the name of the source file and the source line number * where the assert_param error has occurred. * Input : - file: pointer to the source file name * - line: assert_param error line source number * Output : None * Return : None *******************************************************************************/ void assert_failed(u8* file, u32 line) { /* User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* Infinite loop */ while (1) { } } #endif /******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/