view Small_CPU/Src/uart.c @ 554:3328189786e7

Added external ADC interface functionality (MCP3424): Added communication protocoll to read data from external ADC. At the moment 16bit and 18bit resolutions are supported. External data will be read and forwarded depending on the conversion time of the ADC.
author Ideenmodellierer
date Thu, 12 Nov 2020 19:46:03 +0100
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>&copy; 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****/