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+/**
+ ******************************************************************************
+ * @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>&copy; 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****/