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view Small_CPU/Src/uart.c @ 232:f0069f002c55 div-fixes-4-1

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Bugfix: make date/time setting work over reboots Setting the time/date over the UART interface or by the menu, seems to work, but a reboot of the RTE brings back strange, seemingly random, time. The reason for this is rather simple. In the settings, a time is stored, based on some flawed logic, and that time was restored on reboot. There is no reason to store any time, when the moment of restoring it is unrelated in time. So, the fix is simple: do not set time (in the RTC) based on some time from the past. The whole idea of a RTC is that it does preserve the time for you, as long its powered. Any attempt to do things better using stored time data is futile (and nonsense). And while working on his, also kick out some useless code from the RTE. There is no reason to initialize the time on the RTC to some random time/date in the past. A zero data/time is as good and any random date. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Wed, 03 Apr 2019 21:11:56 +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****/