MCU Serial Port Definition

2019-10-11 FAQ 19 views sumeng

1.This is the MCU port, the pin position is according to the white point of the MCU on the MDVR. So please see the picture carefully, if you do not clearly know it, you can tell me.


MCU Serial Port Definition Picture1

MCU Serial Port Definition Picture2


2.DB9 to USB(pic1) and DB9 to 3pin MCU(pic2), see the following pictures.


MCU Serial Port Definition Picture3

MCU Serial Port Definition Picture4


3.The DB9 to MCU and it’s definition.


MCU  DB9 female port(pic3 and pic4)
1  GND   -->>   5 PIN
2   (null)
3  DEBUG_TX_232   -->>    2 PIN
4  DEBUG_RX_232   -->>   3 PIN


MCU Serial Port Definition Picture5

MCU Serial Port Definition Picture6

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