Old / new BT module communication:
The old / new BT module do have a sligthly different command set. To keep them compatible a function has been added which returns, based on the HW identification, the command string which matches to the module. In case a command is not supported the value 0 is returned and the calling function may react. E.g. with skipping of configuration steps like it is done now for the new module.
/** * @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 __cplusplusextern "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
