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view Small_CPU/Inc/tm_stm32f4_otp.h @ 263:a6c0375bc950 IPC_Sync_Improvment_2
Forward 100ms time stamp to RTE and handle logbook in main loop
Because of code execution variance between 100ms cycle event and start of SPI communication, the synchronization between Main and RTE may shift. To avoid these shifts the time stamp of the 100ms event is forwarded to the RTE which is now able to adapt to small variations.
One variation point was the storage of dive samples within the external flash. Taking a closer look how this function works, moving it from the timer callback to the main loop should not be an issue.
A critical point of having the function in the timer call back was the sector clean function which is called (depending on dive data) every ~300minutes and may take 250ms - 1500ms.
author | ideenmodellierer |
---|---|
date | Sun, 14 Apr 2019 11:38:14 +0200 |
parents | 5f11787b4f42 |
children |
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/** * @author Tilen Majerle * @email tilen@majerle.eu * @website http://stm32f4-discovery.com * @link http://stm32f4-discovery.com/2015/01/library-49-one-time-programmable-otp-bytes-on-stm32f4xx * @version v1.0 * @ide Keil uVision * @license GNU GPL v3 * @brief OTP (One-Time Programmable) flash section library for STM32F4xx * @verbatim ---------------------------------------------------------------------- Copyright (C) Tilen Majerle, 2015 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/>. ---------------------------------------------------------------------- @endverbatim */ #ifndef TM_STM32F4_OPT_H #define TM_STM32F4_OPT_H /* C++ detection */ #ifdef __cplusplus extern "C" { #endif /** * @addtogroup TM_STM32F4xx_Libraries * @{ */ /** * @defgroup TM_OTP * @brief OTP (One-Time Programmable) flash section library for STM32F4xx - http://stm32f4-discovery.com/2015/01/library-49-one-time-programmable-otp-bytes-on-stm32f4xx * @{ * * \par Changelog * @verbatim Version 1.0 - First release @endverbatim * * \par Dependencies * @verbatim - STM32F4xx - STM32F4xx RCC - STM32F4xx FLASH - defines.h @endverbatim */ //#include "stm32f4xx.h" //#include "stm32f4xx_rcc.h" //#include "stm32f4xx_flash.h" //#include "defines.h" #include "stm32f4xx_hal.h" /** * @defgroup TM_OTP_Macros * @brief Library defines * @{ */ /** * @brief OTP memory start address */ #define OTP_START_ADDR (0x1FFF7800) /** * @brief OTP memory lock address */ #define OTP_LOCK_ADDR (0x1FFF7A00) /** * @brief Number of OTP blocks */ #define OTP_BLOCKS 16 /** * @brief Number of bytes in one block */ #define OTP_BYTES_IN_BLOCK 32 /** * @brief Number of all OTP bytes */ #define OTP_SIZE (OTP_BLOCKS * OTP_BYTES_IN_BLOCK) /** * @} */ /** * @defgroup TM_OTP_Functions * @brief Library Functions * @{ */ /** * @brief Writes one-time data to specific block and specific byte in this block * @note You can only ONCE write data at desired byte in specific block, if you will try to do it more times, you can have broken data at this location. * @param block: OTP block number, 0 to 15 is allowed * @param byte: OTP byte inside one block, 0 to 31 is allowed * @param data: Data to be written to OTP memory * @retval Member of @ref TM_OTP_Result_t enumeration */ HAL_StatusTypeDef TM_OTP_Write(uint8_t block, uint8_t byte, uint8_t data); /** * @brief Reads data from specific block and specific byte in this block * @note You can read data unlimited times from locations * @param block: OTP block number, 0 to 15 is allowed * @param byte: OTP byte inside one block, 0 to 31 is allowed * @retval Value at specific block and byte location, or 0 if location is invalid */ uint8_t TM_OTP_Read(uint8_t block, uint8_t byte); /** * @} */ /** * @} */ /** * @} */ /* C++ detection */ #ifdef __cplusplus } #endif #endif // TM_STM32F4_OPT_H