diff options
Diffstat (limited to 'src/stmf0/ao_flash_stm.c')
| -rw-r--r-- | src/stmf0/ao_flash_stm.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/src/stmf0/ao_flash_stm.c b/src/stmf0/ao_flash_stm.c index 2aeff388..2d57eea7 100644 --- a/src/stmf0/ao_flash_stm.c +++ b/src/stmf0/ao_flash_stm.c @@ -19,6 +19,12 @@ #include <ao.h> #include <ao_flash.h> +/* Note that the HSI clock must be running for this code to work. + * Also, special care must be taken with the linker to ensure that the + * functions marked 'ramtext' land in ram and not rom. An example of that + * can be found in altos-loader.ld + */ + static uint8_t ao_flash_is_locked(void) { @@ -44,12 +50,7 @@ ao_flash_lock(void) stm_flash.cr |= (1 << STM_FLASH_CR_LOCK); } -static void -ao_flash_wait_bsy(void) -{ - while (stm_flash.sr & (1 << STM_FLASH_SR_BSY)) - ; -} +#define ao_flash_wait_bsy() do { while (stm_flash.sr & (1 << STM_FLASH_SR_BSY)); } while (0) static void __attribute__ ((section(".ramtext"),noinline)) _ao_flash_erase_page(uint32_t *page) |