I am an undergraduate student majoring in electronic information engineering. I am about to enter my third year, but I have only learned two basic courses: analog electronics and circuits. I don’t kno
A: When programming the development board MY-IMX6-EK140(MINI)-6Y2D, the serial port is always garbled. As shown in the figure:
B: It is a level problem. The suggestion is to remove U7 and lead out TX