diff options
Diffstat (limited to 'ports/stm32/flashbdev.c')
| -rw-r--r-- | ports/stm32/flashbdev.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/ports/stm32/flashbdev.c b/ports/stm32/flashbdev.c index 6ed891300d..6be0cfee8a 100644 --- a/ports/stm32/flashbdev.c +++ b/ports/stm32/flashbdev.c @@ -104,11 +104,16 @@ STATIC byte flash_cache_mem[0x4000] __attribute__((aligned(4))); // 16k #elif defined(STM32H743xx) -// The STM32H743 flash sectors are 128K -#define CACHE_MEM_START_ADDR (0x20000000) // DTCM data RAM, 128k -#define FLASH_SECTOR_SIZE_MAX (0x20000) // 128k max -#define FLASH_MEM_SEG1_START_ADDR (0x08020000) // sector 1 -#define FLASH_MEM_SEG1_NUM_BLOCKS (256) // Sector 1: 128k / 512b = 256 blocks +// The STM32H743 flash sectors are 128K, with locations defined in the linker script +extern uint8_t _flash_fs_start; +extern uint8_t _flash_fs_end; +extern uint8_t _ram_fs_cache_start[]; +extern uint8_t _ram_fs_cache_end[]; + +#define CACHE_MEM_START_ADDR ((uintptr_t)&_ram_fs_cache_start[0]) +#define FLASH_SECTOR_SIZE_MAX (&_ram_fs_cache_end[0] - &_ram_fs_cache_start[0]) +#define FLASH_MEM_SEG1_START_ADDR ((long)&_flash_fs_start) +#define FLASH_MEM_SEG1_NUM_BLOCKS ((&_flash_fs_end - &_flash_fs_start) / 512) #elif defined(STM32L432xx) || \ defined(STM32L451xx) || defined(STM32L452xx) || defined(STM32L462xx) || \ |