There is no problem with normal use. During the test, if you keep pressing keys during the boot process, the keyboard cannot be used after the boot is completed. It feels like it is not enumerated cor...
As the title says, the password is input through a 4x3 keyboard. After input, the password is output to another microcontroller through the p1.0 port of MSP430F2121. In the other microcontroller, it i...
The company (Guangzhou) I work for now has limited room for development. I haven't been promoted in 6 years, and my salary hasn't increased. I used to be a bit stupid (I value dedication and loyalty i...
I want to make a USB disk filter driver. First, I read the device descriptor of the USB disk, and then disable the USB disk according to a certain item in the device descriptor. Thanks to everyone's h...