修改了读取不到文件大小,导致的文件传输的问题,问题说明在 https://www.rt-thread.org/qa/forum.php?mod=viewthread&tid=423781
Use "ry" to receive files and use "sy file_path" to send files. Default console uart and you can choose any other uart if you want. Signed-off-by: Steven Liu <steven.liu@rock-chips.com>