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view Small_CPU/Inc/RTE_FlashAccess.h @ 319:d8e86af78474 fix-version
bugfix: correct packed main version number in dive header
This fixes a rather mysterious bug. Users report that up to 1.3.5 beta,
a correct version number is shown in libdivecomputer based
applications (like in Subsurface, in the extra data tab). Careful
examining the code in both libdivecomputer and the firmware shows
a subtle error in the bit mask and shift operation to pack a full
X.Y.Z.beta version number in 2 bytes (as is available in the
dive header) in the firmware end (as the libdivecomputer code
looks sane, assuming this is the right way to pack things).
Likely, this bug crept in in the conversion from the closed
source Keil period into the open source GCC setup of
the code base. So its impossible to document the exact
history of this problem here.
Further notice that the main version number is only 1 of 3 version
numbers, denoting the full version of the firmware (besides Font
and RTE).
Finally notice that this way of packing is limited to 2^5 bits
(decimal 32), so we could easily build a 1.4.21, but not a
1.4.55.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
---|---|
date | Wed, 19 Jun 2019 14:31:50 +0200 |
parents | 5f11787b4f42 |
children | 91a8f9893e68 |
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/** ****************************************************************************** * @file RTE_FLashAccess.h based on BonexFLashAccess.h based on firmwareEraseProgram.h * @author heinrichs weikamp gmbh * @version V0.0.1 * @date 20-July-2016 * @version V0.0.1 * @since 20-July-2016 * @brief erase and program the STM32F4xx internal FLASH memory for compasss calib etc. * @verbatim ============================================================================== ##### How to use ##### ============================================================================== @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2016 heinrichs weikamp</center></h2> * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef RTE_FLASH_ACCESS_H #define RTE_FLASH_ACCESS_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal.h" /* Exported variables --------------------------------------------------------*/ /* Exported types ------------------------------------------------------------*/ enum { BFA_OK = 0, //= HAL_OK BFA_ERROR = (uint8_t)HAL_ERROR, BFA_BUSY = (uint8_t)HAL_BUSY, BFA_TIMEOUT = (uint8_t)HAL_TIMEOUT, BFA_EMPTY, }; /* Exported functions --------------------------------------------------------*/ uint8_t BFA_readLastDataBlock(uint32_t *dataArray4); uint8_t BFA_writeDataBlock(const uint32_t *dataArray4); #ifdef __cplusplus } #endif #endif /* RTE_FLASH_ACCESS_H */ /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/