![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
2011
Diff: FlashWriter/FlashWriter.cpp
- Revision:
- 16:903b5a4433b4
diff -r bd0d12728506 -r 903b5a4433b4 FlashWriter/FlashWriter.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/FlashWriter/FlashWriter.cpp Mon Sep 02 13:32:33 2019 +0000 @@ -0,0 +1,56 @@ +#include "stm32f4xx_flash.h" +#include "FlashWriter.h" + +FlashWriter::FlashWriter(int sector) { + if (sector > 7) sector = 7; + __sector = sector; + __base = __SECTOR_ADDRS[sector]; + __ready = false; + + FLASH_Unlock(); + FLASH_ClearFlag( FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR); + FLASH_EraseSector(__SECTORS[sector], VoltageRange_3); +} + +bool FlashWriter::ready() { + return __ready; +} + +void FlashWriter::open() { + FLASH_Unlock(); + FLASH_ClearFlag( FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR); + FLASH_EraseSector(__SECTORS[__sector], VoltageRange_3); + __ready = true; +} + +void FlashWriter::write(uint32_t index, int x) { + union {int a; uint32_t b;}; + a = x; + FLASH_ProgramWord(__base + 4 * index, b); +} + +void FlashWriter::write(uint32_t index, unsigned int x) { + FLASH_ProgramWord(__base + 4 * index, x); +} + +void FlashWriter::write(uint32_t index, float x) { + union {float a; uint32_t b;}; + a = x; + FLASH_ProgramWord(__base + 4 * index, b); +} + +void FlashWriter::close() { + FLASH_Lock(); +} + +int flashReadInt(uint32_t sector, uint32_t index) { + return *(int*) (__SECTOR_ADDRS[sector] + 4 * index); +} + +uint32_t flashReadUint(uint32_t sector, uint32_t index) { + return *(uint32_t*) (__SECTOR_ADDRS[sector] + 4 * index); +} + +float flashReadFloat(uint32_t sector, uint32_t index) { + return *(float*) (__SECTOR_ADDRS[sector] + 4 * index); +}