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diff libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/SPI/Simplex_Interrupt/main.c @ 0:c59513fd84fb
Initial commit of STM32 test code.
author | Daniel O'Connor <darius@dons.net.au> |
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date | Mon, 03 Oct 2011 21:19:15 +1030 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/SPI/Simplex_Interrupt/main.c Mon Oct 03 21:19:15 2011 +1030 @@ -0,0 +1,261 @@ +/** + ****************************************************************************** + * @file SPI/Simplex_Interrupt/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>© COPYRIGHT 2011 STMicroelectronics</center></h2> + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" +#include "platform_config.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup SPI_Simplex_Interrupt + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus; + +/* Private define ------------------------------------------------------------*/ +#define BufferSize 32 + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +SPI_InitTypeDef SPI_InitStructure; +uint8_t SPI_MASTER_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}; +uint8_t SPI_SLAVE_Buffer_Rx[BufferSize]; +__IO uint8_t TxIdx = 0, RxIdx = 0; +volatile TestStatus TransferStatus = FAILED; + +/* Private functions ---------------------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); +void NVIC_Configuration(void); +TestStatus Buffercmp(uint8_t* pBuffer1, uint8_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(); + + /* NVIC configuration ------------------------------------------------------*/ + NVIC_Configuration(); + + /* GPIO configuration ------------------------------------------------------*/ + GPIO_Configuration(); + + /* SPI_MASTER configuration ------------------------------------------------*/ + SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Tx; + 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_4; + SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; + SPI_InitStructure.SPI_CRCPolynomial = 7; + SPI_Init(SPI_MASTER, &SPI_InitStructure); + + /* SPI_SLAVE configuration -------------------------------------------------*/ + SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Rx; + SPI_InitStructure.SPI_Mode = SPI_Mode_Slave; + SPI_Init(SPI_SLAVE, &SPI_InitStructure); + + /* Enable SPI_MASTER TXE interrupt */ + SPI_I2S_ITConfig(SPI_MASTER, SPI_I2S_IT_TXE, ENABLE); + /* Enable SPI_SLAVE RXNE interrupt */ + SPI_I2S_ITConfig(SPI_SLAVE, SPI_I2S_IT_RXNE, ENABLE); + + /* Enable SPI_SLAVE */ + SPI_Cmd(SPI_SLAVE, ENABLE); + /* Enable SPI_MASTER */ + SPI_Cmd(SPI_MASTER, ENABLE); + + /* Transfer procedure */ + while (RxIdx < BufferSize) + {} + + /* Check the correctness of written dada */ + TransferStatus = Buffercmp(SPI_SLAVE_Buffer_Rx, SPI_MASTER_Buffer_Tx, BufferSize); + /* TransferStatus = PASSED, if the transmitted and received data + are equal */ + /* TransferStatus = FAILED, if the transmitted and received data + are different */ + + 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 --------------------------------------------------*/ +#ifdef USE_STM3210C_EVAL + /* Enable GPIO clock for SPI_MASTER and SPI_SLAVE */ + RCC_APB2PeriphClockCmd(SPI_MASTER_GPIO_CLK | SPI_SLAVE_GPIO_CLK | + RCC_APB2Periph_AFIO, ENABLE); + + /* Enable SPI_MASTER Periph clock */ + RCC_APB1PeriphClockCmd(SPI_MASTER_CLK, ENABLE); +#else + /* Enable SPI_MASTER clock and GPIO clock for SPI_MASTER and SPI_SLAVE */ + RCC_APB2PeriphClockCmd(SPI_MASTER_GPIO_CLK | SPI_SLAVE_GPIO_CLK | + SPI_MASTER_CLK, ENABLE); +#endif + /* Enable SPI_SLAVE Periph clock */ + RCC_APB1PeriphClockCmd(SPI_SLAVE_CLK, ENABLE); +} + +/** + * @brief Configures the different GPIO ports. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#ifdef USE_STM3210C_EVAL + /* Enable SPI3 Pins Software Remapping */ + GPIO_PinRemapConfig(GPIO_Remap_SPI3, ENABLE); +#endif + + /* Configure SPI_MASTER pins: SCK and MOSI ---------------------------------*/ + /* Configure SCK and MOSI pins as Alternate Function Push Pull */ + GPIO_InitStructure.GPIO_Pin = SPI_MASTER_PIN_SCK | SPI_MASTER_PIN_MOSI; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_Init(SPI_MASTER_GPIO, &GPIO_InitStructure); + + /* Configure SPI_SLAVE pins: SCK and MISO ---------------------------------*/ + /* Configure SCK and MOSI pins as Input Floating */ + GPIO_InitStructure.GPIO_Pin = SPI_SLAVE_PIN_SCK ; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_Init(SPI_SLAVE_GPIO, &GPIO_InitStructure); + /* Configure MISO pin as Alternate Function Push Pull */ + GPIO_InitStructure.GPIO_Pin = SPI_SLAVE_PIN_MISO; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_Init(SPI_SLAVE_GPIO, &GPIO_InitStructure); +} + +/** + * @brief Configure the nested vectored interrupt controller. + * @param None + * @retval None + */ +void NVIC_Configuration(void) +{ + NVIC_InitTypeDef NVIC_InitStructure; + + /* 1 bit for pre-emption priority, 3 bits for subpriority */ + NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); + + /* Configure and enable SPI_MASTER interrupt -------------------------------*/ + NVIC_InitStructure.NVIC_IRQChannel = SPI_MASTER_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); + + /* Configure and enable SPI_SLAVE interrupt --------------------------------*/ + NVIC_InitStructure.NVIC_IRQChannel = SPI_SLAVE_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; + NVIC_Init(&NVIC_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(uint8_t* pBuffer1, uint8_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****/