I used the PF0 port by mistake and there is no pull-up. Then the microcontroller is locked and I cannot write new programs. The debug prompt says Error connecting to the target, but the previous progr
Abstract This paper combines the design of infrared communication in the bank's electronic interest rate display screen and introduces the hardware design method and software processing technology of
Phase shifters are available in two forms: analog and digital. The phase shift of analog phase shifters can be continuously variable within a certain range, while the phase shift of digital phase shif