I am working on an embedded system recently and need to transfer data from the microcontroller to a USB flash drive via USB. How should I choose the USB controller and how should I write the USB progr
The 51 serial port receives a set of host computer data every second. The requirement is to control a switch on and off if this set of data is what you want! What I want to ask is how to control a swi
I bought a s3c44B0 board some time ago, but it stopped working after a few uses. After powering on, there was no printed information on the serial port. The attached document said that under normal ci