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trezor-firmware/micropython/trezorhal/flash.c
2017-04-06 19:06:05 +02:00

41 lines
857 B
C

#include STM32_HAL_H
int flash_init(void)
{
return 0;
}
#define WANTED_WRP (OB_WRP_SECTOR_0 | OB_WRP_SECTOR_1)
#define WANTED_RDP (OB_RDP_LEVEL_2)
#define WANTED_BOR (OB_BOR_LEVEL3)
void flash_set_option_bytes(void)
{
FLASH_OBProgramInitTypeDef opts;
HAL_FLASHEx_OBGetConfig(&opts);
opts.OptionType = 0;
if (opts.WRPSector != WANTED_WRP) {
opts.OptionType = OPTIONBYTE_WRP;
opts.WRPState = OB_WRPSTATE_ENABLE;
opts.WRPSector = WANTED_WRP;
opts.Banks = FLASH_BANK_1;
}
if (opts.RDPLevel != WANTED_RDP) {
opts.OptionType = OPTIONBYTE_RDP;
opts.RDPLevel = WANTED_RDP;
}
if (opts.BORLevel != WANTED_BOR) {
opts.OptionType = OPTIONBYTE_BOR;
opts.BORLevel = WANTED_BOR;
}
if (opts.OptionType != 0) {
HAL_FLASHEx_OBProgram(&opts);
}
}