从 LINUX下载 - UCchip Docs 下载来的 flashcd v1.0 不支持对设置过 flash 保护状态的芯片下载程序，请求增加该功能的支持 
。
烧录日志输出如下
flashcd rtthread.bin
The current configuration:
Outfile:rtthread.bin
Outdir:
Erase mode: erase sectors
Frequency: 6000000
Verify: Open
disable scrambling
Reset and run: Open
spi open ok
man_id = 0x0b,dev_id = 0x12
begin to erase flash
erase flash end
begin to write flash
page_num = 112, pagesize = 2