My project experiment uses 512K*8 memory and 19 address lines of SRAM. I don't want to use P1 port because it has other uses. I don't know much about page management. I initially use 8255. But I don't...
Abstract: This paper introduces the hardware composition of USB devices based on PDIUSBD12 chip, discusses in detail the specific process of USB enumeration and the MCU firmware programming idea based...
Please help me take a look at this op amp circuit. I feel that the circuit structure is a bit like a differential detection circuit. I wonder if the selected part can be analyzed as an op amp as a who...
The following uses the row-column flipping method to measure the matrix keyboard. The following is just a subroutine, but it cannot realize the function.
I've seen other people write programs that use...