hi 我在用NXP的LPC55S69的时候需要通过USB下载，但是在demo板上发现下载完了，没什么反应，应该是没有成功，工程是通过keil编译出来的gpio例程
Please use *.bin file with write-memory command.
If you want to use *.hex file, then use flash-image command.
Hello,
My name is Sabina and I would be more than happy to assist you. Could you please write you question in english to better understand what you need?
Thank you in advance!
Sabina
Download via USB ISP, use blhost tool, but failed
Are you using USB 0 or USB1 for ISP mode?
BR,
