void prerun_target_config(void)
{
// SIM peripheral 0x40047000
// address offset 0x 1054
uint32_t UUID_LOC = 0x40048054;
uint32_t uuid[4] = {0};
// get a hold of the target
target_set_state(RESET_PROGRAM);
// do mass-erase if necessary
target_unlock_sequence();
// get target UUID
swd_read_memory(UUID_LOC, (uint8_t *)&uuid, 16);
// stringify and store the MAC generated from a UUID
build_mac_string(uuid);
}
static int shReadWord(uint32_t address, uint32_t *ptr) {
return swd_read_memory(address, (uint8_t *)ptr, sizeof(uint32_t));
}
static error_t target_flash_program_page(uint32_t addr, const uint8_t *buf, uint32_t size)
{
const program_target_t *const flash = target_device.flash_algo;
// check if security bits were set
if (1 == security_bits_set(addr, (uint8_t *)buf, size)) {
return ERROR_SECURITY_BITS;
}
while (size > 0) {
uint32_t write_size = MIN(size, flash->program_buffer_size);
// Write page to buffer
if (!swd_write_memory(flash->program_buffer, (uint8_t *)buf, write_size)) {
return ERROR_ALGO_DATA_SEQ;
}
// Run flash programming
if (!swd_flash_syscall_exec(&flash->sys_call_s,
flash->program_page,
addr,
flash->program_buffer_size,
flash->program_buffer,
0)) {
return ERROR_WRITE;
}
if (config_get_automation_allowed()) {
// Verify data flashed if in automation mode
if (flash->verify != 0) {
if (!swd_flash_syscall_exec(&flash->sys_call_s,
flash->verify,
addr,
write_size,
flash->program_buffer,
0)) {
return ERROR_WRITE;
}
} else {
while (write_size > 0) {
uint8_t rb_buf[16];
uint32_t verify_size = MIN(write_size, sizeof(rb_buf));
if (!swd_read_memory(addr, rb_buf, verify_size)) {
return ERROR_ALGO_DATA_SEQ;
}
if (memcmp(buf, rb_buf, verify_size) != 0) {
return ERROR_WRITE;
}
addr += verify_size;
buf += verify_size;
size -= verify_size;
write_size -= verify_size;
}
continue;
}
}
addr += write_size;
buf += write_size;
size -= write_size;
}
return ERROR_SUCCESS;
}
