Mercurial > public > ostc4
view Small_CPU/Src/uart.c @ 331:b4c578caaafb I2C_Improvment
Added plausibility check for pressure values
In case of I2C communication problems at startup the dc jumped into dive mode with depth up to 300m. As no CRC is applied a bit flip may also occure during normal operation without detection => added a plausibility check if last measured value fits to the last measurements
author | ideenmodellierer |
---|---|
date | Wed, 17 Jul 2019 22:43:51 +0200 |
parents | 5f11787b4f42 |
children | 1b995079c045 |
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/** ****************************************************************************** * @file uart.c * @author heinrichs weikamp gmbh * @version V0.0.1 * @date 27-March-2014 * @brief button control * @verbatim ============================================================================== ##### How to use ##### ============================================================================== @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2015 heinrichs weikamp</center></h2> * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "uart.h" /* Private variables ---------------------------------------------------------*/ UART_HandleTypeDef huart2; /* Exported functions --------------------------------------------------------*/ void MX_USART2_UART_Init(void) { /* pullup special */ GPIO_InitTypeDef GPIO_InitStructure; __GPIOA_CLK_ENABLE(); GPIO_InitStructure.Pin = GPIO_PIN_2; GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStructure.Pull = GPIO_PULLUP; GPIO_InitStructure.Speed = GPIO_SPEED_FAST; HAL_GPIO_Init(GPIOA, &GPIO_InitStructure); /* regular init */ huart2.Instance = USART2; huart2.Init.BaudRate = 1200; huart2.Init.WordLength = UART_WORDLENGTH_8B; huart2.Init.StopBits = UART_STOPBITS_1; huart2.Init.Parity = UART_PARITY_NONE; huart2.Init.Mode = UART_MODE_TX_RX; huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart2.Init.OverSampling = UART_OVERSAMPLING_16; HAL_UART_Init(&huart2); } uint8_t UART_ButtonAdjust(uint8_t *array) { uint8_t answer[4]; HAL_UART_Transmit(&huart2,array,4,1000); HAL_UART_Receive(&huart2,answer,4,2000); if( (answer[0] == array[0]) &&(answer[1] == array[1]) &&(answer[2] == array[2]) &&(answer[3] == array[3])) return 1; else return 0; } void MX_USART2_UART_DeInit(void) { HAL_UART_DeInit(&huart2); } /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/