[color=#000]Now, two 430 MCUs are used for SPI communication. It is hoped that the slave will send data and the host will receive data and return. After writing the program, it is found that the host
I have never drawn a 4-layer PCB before. I saw that the thickness of each layer can be set in the stack management. When sending it to the manufacturer for production, I can't just tell them whether i
[i=s] This post was last edited by paulhyde on 2014-9-15 09:33 [/i] As shown in the picture: 7805 outputs 5V, TL431 should output 2.5v, and the final output should be 5+2.5=7.5v. However, the multimet