From afbb4cc73c44b6321cae39dbe46b97155805097d Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Sun, 13 Dec 2015 21:03:11 +0100 Subject: wip --- .../USART/HyperTerminal_HwFlowControl/main.c | 191 +++++++++++++++++++++ 1 file changed, 191 insertions(+) create mode 100644 tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/HyperTerminal_HwFlowControl/main.c (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/HyperTerminal_HwFlowControl/main.c') diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/HyperTerminal_HwFlowControl/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/HyperTerminal_HwFlowControl/main.c new file mode 100644 index 0000000..6f3916c --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/HyperTerminal_HwFlowControl/main.c @@ -0,0 +1,191 @@ +/** + ****************************************************************************** + * @file USART/HyperTerminal_HwFlowControl/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. + * + *

© COPYRIGHT 2011 STMicroelectronics

+ ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" +#include "platform_config.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup USART_HyperTerminal_HwFlowControl + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +#define TxBufferSize (countof(TxBuffer) - 1) +#define RxBufferSize 0xFF + +/* Private macro -------------------------------------------------------------*/ +#define countof(a) (sizeof(a) / sizeof(*(a))) + +/* Private variables ---------------------------------------------------------*/ +USART_InitTypeDef USART_InitStructure; +uint8_t TxBuffer[] = "\n\rUSART Hyperterminal Hardware Flow Control Example: USART - \ +Hyperterminal communication using hardware flow control\n\r"; +uint8_t RxBuffer[RxBufferSize]; +uint8_t NbrOfDataToTransfer = TxBufferSize; +uint8_t TxCounter = 0; +uint8_t RxCounter = 0; + +/* Private function prototypes -----------------------------------------------*/ +void RCC_Configuration(void); +void GPIO_Configuration(void); + +/* 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(); + +/* USART2 configuration ------------------------------------------------------*/ + /* USART2 configured as follow: + - BaudRate = 115200 baud + - Word Length = 8 Bits + - One Stop Bit + - No parity + - Hardware flow control enabled (RTS and CTS signals) + - Receive and transmit enabled + */ + USART_InitStructure.USART_BaudRate = 115200; + USART_InitStructure.USART_WordLength = USART_WordLength_8b; + USART_InitStructure.USART_StopBits = USART_StopBits_1; + USART_InitStructure.USART_Parity = USART_Parity_No ; + USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_RTS_CTS; + USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; + + USART_Init(USART2, &USART_InitStructure); + /* Enable the USART2 */ + USART_Cmd(USART2, ENABLE); + +/* Communication hyperterminal-USART2 using hardware flow control -------------*/ + /* Send a buffer from USART to hyperterminal */ + while(NbrOfDataToTransfer--) + { + USART_SendData(USART2, TxBuffer[TxCounter++]); + while(USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET); + } + + /* Receive a string (Max RxBufferSize bytes) from the Hyperterminal ended by '\r' (Enter key) */ + do + { + if((USART_GetFlagStatus(USART2, USART_FLAG_RXNE) != RESET)&&(RxCounter < RxBufferSize)) + { + RxBuffer[RxCounter] = USART_ReceiveData(USART2); + USART_SendData(USART2, RxBuffer[RxCounter++]); + } + + }while((RxBuffer[RxCounter - 1] != '\r')&&(RxCounter != RxBufferSize)); + + while (1) + { + } +} + +/** + * @brief Configures the different system clocks. + * @param None + * @retval None + */ +void RCC_Configuration(void) +{ + /* Enable GPIOx and AFIO clocks */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOx | RCC_APB2Periph_AFIO, ENABLE); + + /* Enable USART2 clocks */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE); +} + +/** + * @brief Configures the different GPIO ports. + * @param None + * @retval None + */ +void GPIO_Configuration(void) +{ + GPIO_InitTypeDef GPIO_InitStructure; + +#if defined(USE_STM3210B_EVAL) || defined(USE_STM32100B_EVAL) + /* Enable the USART2 Pins Software Remapping */ + GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE); +#endif + + /* Configure USART2 RTS and USART2 Tx as alternate function push-pull */ + GPIO_InitStructure.GPIO_Pin = GPIO_RTSPin | GPIO_TxPin; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; + GPIO_Init(GPIOx, &GPIO_InitStructure); + + /* Configure USART2 CTS and USART2 Rx as input floating */ + GPIO_InitStructure.GPIO_Pin = GPIO_CTSPin | GPIO_RxPin; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_Init(GPIOx, &GPIO_InitStructure); +} + +#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****/ -- cgit v1.2.3