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+/**
+ ******************************************************************************
+ * @file USART/MultiProcessor/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 USART_MultiProcessor
+ * @{
+ */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+USART_InitTypeDef USART_InitStructure;
+
+/* Private function prototypes -----------------------------------------------*/
+void RCC_Configuration(void);
+void GPIO_Configuration(void);
+void Delay(__IO uint32_t nCount);
+
+/* Private functions ---------------------------------------------------------*/
+/**
+ * @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();
+
+ /* Configure the GPIO ports */
+ GPIO_Configuration();
+
+ /* Initialize Leds, Wakeup and Key Buttons mounted on STM3210X-EVAL board */
+ STM_EVAL_LEDInit(LED1);
+ STM_EVAL_LEDInit(LED2);
+ STM_EVAL_LEDInit(LED3);
+ STM_EVAL_LEDInit(LED4);
+ STM_EVAL_PBInit(BUTTON_WAKEUP, BUTTON_MODE_EXTI);
+ STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_EXTI);
+
+/* USARTy and USARTz configuration -------------------------------------------*/
+ /* USARTy and USARTz configured as follow:
+ - BaudRate = 9600 baud
+ - Word Length = 9 Bits
+ - One Stop Bit
+ - No parity
+ - Hardware flow control disabled (RTS and CTS signals)
+ - Receive and transmit enabled
+ */
+ USART_InitStructure.USART_BaudRate = 9600;
+ USART_InitStructure.USART_WordLength = USART_WordLength_9b;
+ USART_InitStructure.USART_StopBits = USART_StopBits_1;
+ USART_InitStructure.USART_Parity = USART_Parity_No;
+ USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
+ USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
+
+ /* Configure USARTy */
+ USART_Init(USARTy, &USART_InitStructure);
+ /* Configure USARTz */
+ USART_Init(USARTz, &USART_InitStructure);
+
+ /* Enable the USARTy */
+ USART_Cmd(USARTy, ENABLE);
+ /* Enable the USARTz */
+ USART_Cmd(USARTz, ENABLE);
+
+ /* Set the USARTy Address */
+ USART_SetAddress(USARTy, 0x1);
+ /* Set the USARTz Address */
+ USART_SetAddress(USARTz, 0x2);
+
+ /* Select the USARTz WakeUp Method */
+ USART_WakeUpConfig(USARTz, USART_WakeUp_AddressMark);
+
+ while (1)
+ {
+ /* Send one byte from USARTy to USARTz */
+ USART_SendData(USARTy, 0x33);
+
+ /* Wait while USART1 TXE = 0 */
+ while(USART_GetFlagStatus(USARTz, USART_FLAG_TXE) == RESET)
+ {
+ }
+
+ if(USART_GetFlagStatus(USARTz, USART_FLAG_RXNE) != RESET)
+ {
+ if(USART_ReceiveData(USARTz) == 0x33)
+ {
+ STM_EVAL_LEDToggle(LED1);
+ Delay(0x5FFFF);
+ STM_EVAL_LEDToggle(LED2);
+ Delay(0x5FFFF);
+ STM_EVAL_LEDToggle(LED3);
+ Delay(0x5FFFF);
+ STM_EVAL_LEDToggle(LED4);
+ Delay(0x5FFFF);
+ }
+ }
+ }
+}
+
+/**
+ * @brief Configures the different system clocks.
+ * @param None
+ * @retval None
+ */
+void RCC_Configuration(void)
+{
+ /* Enable GPIO clock */
+ RCC_APB2PeriphClockCmd(USARTy_GPIO_CLK | USARTz_GPIO_CLK | RCC_APB2Periph_AFIO, ENABLE);
+
+#ifndef USE_STM3210C_EVAL
+ /* Enable USARTy Clock */
+ RCC_APB2PeriphClockCmd(USARTy_CLK, ENABLE);
+#else
+ /* Enable USARTy Clock */
+ RCC_APB1PeriphClockCmd(USARTy_CLK, ENABLE);
+#endif
+ /* Enable USARTz Clock */
+ RCC_APB1PeriphClockCmd(USARTz_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 the USART3 Pins Software Remapping */
+ GPIO_PinRemapConfig(GPIO_PartialRemap_USART3, ENABLE);
+
+ /* Enable the USART2 Pins Software Remapping */
+ GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);
+#elif defined(USE_STM3210B_EVAL) || defined(USE_STM32100B_EVAL)
+ /* Enable the USART2 Pins Software Remapping */
+ GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);
+#endif
+
+ /* Configure USARTy Rx as input floating */
+ GPIO_InitStructure.GPIO_Pin = USARTy_RxPin;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+ GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
+
+ /* Configure USARTz Rx as input floating */
+ GPIO_InitStructure.GPIO_Pin = USARTz_RxPin;
+ GPIO_Init(USARTz_GPIO, &GPIO_InitStructure);
+
+ /* Configure USARTy Tx as alternate function push-pull */
+ GPIO_InitStructure.GPIO_Pin = USARTy_TxPin;
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+ GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
+
+ /* Configure USARTz Tx as alternate function push-pull */
+ GPIO_InitStructure.GPIO_Pin = USARTz_TxPin;
+ GPIO_Init(USARTz_GPIO, &GPIO_InitStructure);
+}
+
+/**
+ * @brief Inserts a delay time.
+ * @param nCount: specifies the delay time length.
+ * @retval None
+ */
+void Delay(__IO uint32_t nCount)
+{
+ /* Decrement nCount value */
+ for(; nCount != 0; nCount--);
+}
+
+#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****/