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authorTrygve Laugstøl <trygvis@inamo.no>2017-01-25 22:24:18 +0100
committerTrygve Laugstøl <trygvis@inamo.no>2017-01-25 22:29:25 +0100
commit40e04e3772726829d66c12e69f24b03920d79c67 (patch)
tree636811bad956798c9d5d22de9e7ba8c799b8d791 /tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/SPI/CRC/main.c
parent2fff65aed2477a503c72629d27e2a330d30c02d1 (diff)
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o Moving tinyprintf and stm libraries under thirdparty.
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-/**
- ******************************************************************************
- * @file SPI/CRC/main.c
- * @author MCD Application Team
- * @version V3.5.0
- * @date 08-April-2011
- * @brief Main program body
- ******************************************************************************
- * @attention
- *
- * 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.
- *
- * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f10x.h"
-
-/** @addtogroup STM32F10x_StdPeriph_Examples
- * @{
- */
-
-/** @addtogroup SPI_CRC
- * @{
- */
-
-/* Private typedef -----------------------------------------------------------*/
-typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
-
-/* Private define ------------------------------------------------------------*/
-#define BufferSize 32
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-SPI_InitTypeDef SPI_InitStructure;
-uint16_t SPI1_Buffer_Tx[BufferSize] = {0x0102, 0x0304, 0x0506, 0x0708, 0x090A, 0x0B0C,
- 0x0D0E, 0x0F10, 0x1112, 0x1314, 0x1516, 0x1718,
- 0x191A, 0x1B1C, 0x1D1E, 0x1F20, 0x2122, 0x2324,
- 0x2526, 0x2728, 0x292A, 0x2B2C, 0x2D2E, 0x2F30,
- 0x3132, 0x3334, 0x3536, 0x3738, 0x393A, 0x3B3C,
- 0x3D3E, 0x3F40};
-uint16_t SPI2_Buffer_Tx[BufferSize] = {0x5152, 0x5354, 0x5556, 0x5758, 0x595A, 0x5B5C,
- 0x5D5E, 0x5F60, 0x6162, 0x6364, 0x6566, 0x6768,
- 0x696A, 0x6B6C, 0x6D6E, 0x6F70, 0x7172, 0x7374,
- 0x7576, 0x7778, 0x797A, 0x7B7C, 0x7D7E, 0x7F80,
- 0x8182, 0x8384, 0x8586, 0x8788, 0x898A, 0x8B8C,
- 0x8D8E, 0x8F90};
-uint16_t SPI1_Buffer_Rx[BufferSize], SPI2_Buffer_Rx[BufferSize];
-uint32_t TxIdx = 0, RxIdx = 0;
-__IO uint16_t CRC1Value = 0, CRC2Value = 0;
-volatile TestStatus TransferStatus1 = FAILED, TransferStatus2 = FAILED;
-
-/* Private functions ---------------------------------------------------------*/
-void RCC_Configuration(void);
-void GPIO_Configuration(void);
-TestStatus Buffercmp(uint16_t* pBuffer1, uint16_t* pBuffer2, uint16_t BufferLength);
-
-/**
- * @brief Main program
- * @param None
- * @retval None
- */
-int main(void)
-{
- /*!< At this stage the microcontroller clock setting is already configured,
- this is done through SystemInit() function which is called from startup
- file (startup_stm32f10x_xx.s) before to branch to application main.
- To reconfigure the default setting of SystemInit() function, refer to
- system_stm32f10x.c file
- */
-
- /* System clocks configuration ---------------------------------------------*/
- RCC_Configuration();
-
- /* GPIO configuration ------------------------------------------------------*/
- 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_16b;
- 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 = 7;
- SPI_Init(SPI1, &SPI_InitStructure);
-
- /* SPI2 configuration ------------------------------------------------------*/
- SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
- SPI_Init(SPI2, &SPI_InitStructure);
-
- /* Enable SPI1 CRC calculation */
- SPI_CalculateCRC(SPI1, ENABLE);
- /* Enable SPI2 CRC calculation */
- SPI_CalculateCRC(SPI2, ENABLE);
-
- /* Enable SPI1 */
- SPI_Cmd(SPI1, ENABLE);
- /* Enable SPI2 */
- SPI_Cmd(SPI2, ENABLE);
-
- /* Transfer procedure */
- while (TxIdx < BufferSize - 1)
- {
- /* Wait for SPI1 Tx buffer empty */
- while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET);
- /* Send SPI2 data */
- SPI_I2S_SendData(SPI2, SPI2_Buffer_Tx[TxIdx]);
- /* Send SPI1 data */
- SPI_I2S_SendData(SPI1, SPI1_Buffer_Tx[TxIdx++]);
- /* Wait for SPI2 data reception */
- while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_RXNE) == RESET);
- /* Read SPI2 received data */
- SPI2_Buffer_Rx[RxIdx] = SPI_I2S_ReceiveData(SPI2);
- /* Wait for SPI1 data reception */
- while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
- /* Read SPI1 received data */
- SPI1_Buffer_Rx[RxIdx++] = SPI_I2S_ReceiveData(SPI1);
- }
-
- /* Wait for SPI1 Tx buffer empty */
- while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET);
- /* Wait for SPI2 Tx buffer empty */
- while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
-
- /* Send last SPI2_Buffer_Tx data */
- SPI_I2S_SendData(SPI2, SPI2_Buffer_Tx[TxIdx]);
- /* Enable SPI2 CRC transmission */
- SPI_TransmitCRC(SPI2);
- /* Send last SPI1_Buffer_Tx data */
- SPI_I2S_SendData(SPI1, SPI1_Buffer_Tx[TxIdx]);
- /* Enable SPI1 CRC transmission */
- SPI_TransmitCRC(SPI1);
-
- /* Wait for SPI1 last data reception */
- while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
- /* Read SPI1 last received data */
- SPI1_Buffer_Rx[RxIdx] = SPI_I2S_ReceiveData(SPI1);
-
- /* Wait for SPI2 last data reception */
- while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_RXNE) == RESET);
- /* Read SPI2 last received data */
- SPI2_Buffer_Rx[RxIdx] = SPI_I2S_ReceiveData(SPI2);
-
- /* 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 received data with the send ones */
- 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 CRC Error flag */
- if ((SPI_I2S_GetFlagStatus(SPI1, SPI_FLAG_CRCERR)) == SET)
- {
- TransferStatus2 = FAILED;
- }
-
- /* Test on the SPI2 CRC Error flag */
- if ((SPI_I2S_GetFlagStatus(SPI2, SPI_FLAG_CRCERR)) == SET)
- {
- TransferStatus1 = FAILED;
- }
-
- /* Read SPI1 received CRC value */
- CRC1Value = SPI_I2S_ReceiveData(SPI1);
- /* Read SPI2 received CRC value */
- CRC2Value = SPI_I2S_ReceiveData(SPI2);
-
- while (1)
- {}
-}
-
-/**
- * @brief Configures the different system clocks.
- * @param None
- * @retval None
- */
-void RCC_Configuration(void)
-{
- /* PCLK2 = HCLK/2 */
- RCC_PCLK2Config(RCC_HCLK_Div2);
-
- /* Enable peripheral clocks --------------------------------------------------*/
- /* GPIOA, GPIOB and SPI1 clock enable */
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |
- RCC_APB2Periph_SPI1, ENABLE);
-
- /* SPI2 Periph clock enable */
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
-}
-
-/**
- * @brief Configures the different GPIO ports.
- * @param None
- * @retval None
- */
-void GPIO_Configuration(void)
-{
- GPIO_InitTypeDef GPIO_InitStructure;
-
- /* Configure SPI1 pins: SCK, MISO and MOSI ---------------------------------*/
- /* Confugure SCK and MOSI pins as Alternate Function Push Pull */
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_7;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
- /* Confugure MISO pin as Input Floating */
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
-
- /* Configure SPI2 pins: SCK, MISO and MOSI ---------------------------------*/
- /* Confugure SCK and MOSI pins as Input Floating */
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_15;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
- GPIO_Init(GPIOB, &GPIO_InitStructure);
- /* Confugure MISO pin as Alternate Function Push Pull */
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
- GPIO_Init(GPIOB, &GPIO_InitStructure);
-
-}
-
-/**
- * @brief Compares two buffers.
- * @param pBuffer1, pBuffer2: buffers to be compared.
- * @param BufferLength: buffer's length
- * @retval PASSED: pBuffer1 identical to pBuffer2
- * FAILED: pBuffer1 differs from pBuffer2
- */
-TestStatus Buffercmp(uint16_t* pBuffer1, uint16_t* pBuffer2, uint16_t BufferLength)
-{
- while (BufferLength--)
- {
- if (*pBuffer1 != *pBuffer2)
- {
- return FAILED;
- }
-
- pBuffer1++;
- pBuffer2++;
- }
-
- return PASSED;
-}
-
-#ifdef USE_FULL_ASSERT
-
-/**
- * @brief Reports the name of the source file and the source line number
- * where the assert_param error has occurred.
- * @param file: pointer to the source file name
- * @param line: assert_param error line source number
- * @retval None
- */
-void assert_failed(uint8_t* file, uint32_t 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 2011 STMicroelectronics *****END OF FILE****/