uint8 ICACHE_FLASH_ATTR read_sys_const(uint8 idx) {
#ifdef USE_FIX_SDK_FLASH_SIZE
return get_sys_const(idx);
#else
uint8 ret = 0xff;
if (idx < MAX_IDX_SYS_CONST)
spi_flash_read(esp_init_data_default_addr + idx, (uint32 *)&ret, 1);
return ret;
#endif
}
bool ICACHE_FLASH_ATTR write_sys_const(uint8 idx, uint8 data) {
if (idx >= MAX_IDX_SYS_CONST)
return false;
uint32 faddr = esp_init_data_default_addr;
if (get_sys_const(idx) != data) {
uint8 * buf = rd_buf_sec_blk(faddr, SIZE_SAVE_SYS_CONST);
if(buf != NULL) {
buf[idx] = data;
return wr_buf_sec_blk(faddr, SIZE_SAVE_SYS_CONST, buf);
}
}
else return true;
return false;
}
