diff options
Diffstat (limited to 'ports/stm32/flashbdev.c')
| -rw-r--r-- | ports/stm32/flashbdev.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/ports/stm32/flashbdev.c b/ports/stm32/flashbdev.c index 5ae67d1ec..2b633cf16 100644 --- a/ports/stm32/flashbdev.c +++ b/ports/stm32/flashbdev.c @@ -95,14 +95,15 @@ STATIC byte flash_cache_mem[0x4000] __attribute__((aligned(4))); // 16k #elif defined(STM32L475xx) || defined(STM32L476xx) || defined(STM32L496xx) +// The STM32L475/6 doesn't have CCRAM, so we use the 32K SRAM2 for this, although +// actual location and size is defined by the linker script. extern uint8_t _flash_fs_start; extern uint8_t _flash_fs_end; -extern uint32_t _ram_fs_cache_start[2048 / 4]; -extern uint32_t _ram_fs_cache_block_size; +extern uint8_t _ram_fs_cache_start[]; // size determined by linker file +extern uint8_t _ram_fs_cache_end[]; -// The STM32L475/6 doesn't have CCRAM, so we use the 32K SRAM2 for this. -#define CACHE_MEM_START_ADDR (&_ram_fs_cache_start) // End of SRAM2 RAM segment-2k -#define FLASH_SECTOR_SIZE_MAX (_ram_fs_cache_block_size) // 2k max +#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]) // 2k max #define FLASH_MEM_SEG1_START_ADDR ((long)&_flash_fs_start) #define FLASH_MEM_SEG1_NUM_BLOCKS ((&_flash_fs_end - &_flash_fs_start) / 512) |