view Small_CPU/Src/uart.c @ 228:f9ba924d188e div-fixes-4-1

Bugfix: set battery percentage correctly after RTE update When the RTE is rebooted, the battery percentage on the display is zeroed. However, when selecting SYS2-reboot-maintenance, the previously known battery percentage can be manually restored. Interestingly, when the restore reported a percentage A, choosing that resulted in a percentage B to be displayed again. With B much smaller than A. So, rebooting the RTE multiple times resulted in an seemingly empty battery, while it definitely is not. The reason for this is a relatively simple bug in the RTE code. This commit fixes the conversion between the internal LTC2941 registers and the percentage value to be displayed. Obviously, from and to the internal registers need to be symmetrical. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Tue, 02 Apr 2019 14:53:15 +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>&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****/