代码拉取完成，页面将自动刷新
if (hdr_tmp_pos < RT_FOTA_BLOCK_HEADER_SIZE)
{
fw_raw_len = rt_fota_read_part(part, fw_raw_pos, aes_ctx, aes_iv, crypt_buf, RT_FOTA_ALGO_BUFF_SIZE);
if (fw_raw_len < 0)
{
LOG_D("AES256 algorithm failed.");
fota_err = RT_FOTA_PART_READ_ERR;
goto __exit_upgrade;
}
fw_raw_pos += fw_raw_len;
block_hdr_pos = 0;
while (hdr_tmp_pos < RT_FOTA_BLOCK_HEADER_SIZE)
{
block_hdr_buf[hdr_tmp_pos++] = crypt_buf[block_hdr_pos++];
}
block_size = block_hdr_buf[0] * (1 << 24) + block_hdr_buf[1] * (1 << 16) + block_hdr_buf[2] * (1 << 8) + block_hdr_buf[3];
rt_memset(cmprs_buff, 0x0, RT_FOTA_CMPRS_BUFFER_SIZE + padding_size);
rt_memcpy(cmprs_buff, &crypt_buf[block_hdr_pos], block_size);
block_hdr_pos = (block_hdr_pos + block_size) % RT_FOTA_ALGO_BUFF_SIZE;
}