Request the schematic diagram of this system board

萝卜12345

Request the schematic diagram of this system board [Copy link]

 

I need the schematic diagram and programming of this board urgently. Please help me. Email: 634065876@qq.com

DDZZ669

If it's just programming, isn't there a corresponding label on the board IO? Why do you need a schematic?

萝卜12345

DDZZ669 posted on 2018-11-21 15:44 If it is just programming, isn't there a corresponding label on the board IO? What do you need a schematic diagram for?

I want to use the communication data similar to the mp3 port, but I don't know where it is connected

ienglgge

蓮12345 发表于2018-11-21 16:27 I want to use the communication data similar to the mp3 port, but I don't know where it is connected

I want to use the communication data similar to the mp3 port, and the data needs to be measured. It cannot be seen on the schematic diagram. If you want to find the chip pins, there are instructions in the manual. Check the peripheral connections and use a multimeter to measure the external connections.

alan000345

You should at least give the code name of this board, the information given is too little.

萝卜12345

alan000345 posted on 2018-11-26 09:47 You should at least give the code name of this board. The information given is too little.

Um, I'm just not sure, so I'm asking you here.

萝卜12345

ienglgge posted on 2018-11-23 13:29 I want to use the communication data similar to the mp3 port, the data needs to be measured. I can't see it on the schematic. If I want to find the chip pins. There are instructions in the manual...

I want to know what the mp3-like port is connected to on the pcb because I can't make that kind of socket.

ienglgge

蓮12345 发表于2018-11-27 17:15 I want to know what the mp3-like port on the PCB is connected to because I can't make that kind of socket

The mp3-like port is on the PCB. I only see the USB port. Where is the mp3? Can't I measure it with a multimeter?

木犯001号

Look at the model of the main chip on the board. We can't see it and it's hard to tell what it is.

qwqwqw2088

This is the smallest unit board of the main chip MCU. The external jumper should be directly connected to the CPU pin. You can find out by measuring it with a multimeter.

tiankai001

The above is right. This is a minimum system board. First, you can find out the model of the chip, then find the manual of the chip, understand the pin arrangement of the chip, and then use a multimeter to measure the continuity of the pins and the MP3 interface, and you can find out which interfaces they are.