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stm32/flash: Add flash_is_valid_addr, and extend sectors for 2MB F7.

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Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2020-06-18 15:12:25 +10:00
parent 4c8a68df6f
commit 736daebfc8
2 changed files with 13 additions and 0 deletions
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12
ports/stm32/flash.c
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@ -70,10 +70,15 @@ static const flash_layout_t flash_layout[] = {
{ 0x08020000, 0x20000, 3 },
};
#else
// This is for dual-bank mode disabled
static const flash_layout_t flash_layout[] = {
{ 0x08000000, 0x08000, 4 },
{ 0x08020000, 0x20000, 1 },
#if FLASH_SECTOR_TOTAL == 8
{ 0x08040000, 0x40000, 3 },
#else
{ 0x08040000, 0x40000, 7 },
#endif
};
#endif
@ -139,6 +144,13 @@ static uint32_t get_page(uint32_t addr) {
#endif
bool flash_is_valid_addr(uint32_t addr) {
uint8_t last = MP_ARRAY_SIZE(flash_layout) - 1;
uint32_t end_of_flash = flash_layout[last].base_address +
flash_layout[last].sector_count * flash_layout[last].sector_size;
return flash_layout[0].base_address <= addr && addr < end_of_flash;
}
uint32_t flash_get_sector_info(uint32_t addr, uint32_t *start_addr, uint32_t *size) {
if (addr >= flash_layout[0].base_address) {
uint32_t sector_index = 0;

1
ports/stm32/flash.h
View File

@ -26,6 +26,7 @@
#ifndef MICROPY_INCLUDED_STM32_FLASH_H
#define MICROPY_INCLUDED_STM32_FLASH_H
bool flash_is_valid_addr(uint32_t addr);
uint32_t flash_get_sector_info(uint32_t addr, uint32_t *start_addr, uint32_t *size);
int flash_erase(uint32_t flash_dest, uint32_t num_word32);
int flash_write(uint32_t flash_dest, const uint32_t *src, uint32_t num_word32);