view Small_CPU/Src/tm_stm32f4_otp.c @ 502:cf06c12c06d1

Bugfix display of disabled screen. It is possible to select a screen as default which is in parallel disabled in the selection view. To avoid this the enable / disable state is not also checked when entering dive mode. The check function was depending on an ACTION. The functionality has been changed to allow the function call without ACTION.
author Ideenmodellierer
date Mon, 24 Aug 2020 19:43:13 +0200
parents 5f11787b4f42
children
line wrap: on
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/**	
 * |----------------------------------------------------------------------
 * | Copyright (C) Tilen Majerle, 2014
 * | 
 * | This program is free software: you can redistribute it and/or modify
 * | it under the terms of the GNU General Public License as published by
 * | the Free Software Foundation, either version 3 of the License, or
 * | any later version.
 * |  
 * | This program is distributed in the hope that it will be useful,
 * | but WITHOUT ANY WARRANTY; without even the implied warranty of
 * | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * | GNU General Public License for more details.
 * | 
 * | You should have received a copy of the GNU General Public License
 * | along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * |----------------------------------------------------------------------
 */
#include "tm_stm32f4_otp.h"

HAL_StatusTypeDef TM_OTP_Write(uint8_t block, uint8_t byte, uint8_t data)
{
	HAL_StatusTypeDef answer;

	/* Check input parameters */
	if (
		block >= OTP_BLOCKS ||
		byte >= OTP_BYTES_IN_BLOCK
	) {
		/* Invalid parameters */
		return HAL_ERROR;
	}

	if(*(uint8_t *)(OTP_START_ADDR + block * OTP_BYTES_IN_BLOCK + byte) != 0xFF)
		return HAL_ERROR;	

	/* Unlock FLASH */
	HAL_FLASH_Unlock();

	answer = HAL_FLASH_Program(FLASH_TYPEPROGRAM_BYTE, (OTP_START_ADDR + block * OTP_BYTES_IN_BLOCK + byte), data);

	/* Lock FLASH */
	HAL_FLASH_Lock();

	return answer;
}


uint8_t TM_OTP_Read(uint8_t block, uint8_t byte) {
	uint8_t data;
	
	/* Check input parameters */
	if (
		block >= OTP_BLOCKS ||
		byte >= OTP_BYTES_IN_BLOCK
	) {
		/* Invalid parameters */
		return HAL_ERROR;
	}
	
	/* Get value */
	data = *(__IO uint8_t *)(OTP_START_ADDR + block * OTP_BYTES_IN_BLOCK + byte);
	
	/* Return data */
	return data;
}