Voltages from RX and TX
#1
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Hi everyone.
Could someone please tell me wat voltages I should see between Ground and Pins 2 & 3 on the DB9 plug. When not plugged into.the laptop/ usb covertor. But plugged into the MS. Powered up obviously.
I currently have 8 Volts on Pin 2 and 5 volts on pin 3.
Im not sure what I should be seeing. My cable.was riped out of its plug and I cant work.out where to.resolder the wires.
This is a MSPNP running the v3.57 board. If that makes a difference.
I think this test would apply to.any megasquirt with.a serial.comms connection.
Thank you.
David
Could someone please tell me wat voltages I should see between Ground and Pins 2 & 3 on the DB9 plug. When not plugged into.the laptop/ usb covertor. But plugged into the MS. Powered up obviously.
I currently have 8 Volts on Pin 2 and 5 volts on pin 3.
Im not sure what I should be seeing. My cable.was riped out of its plug and I cant work.out where to.resolder the wires.
This is a MSPNP running the v3.57 board. If that makes a difference.
I think this test would apply to.any megasquirt with.a serial.comms connection.
Thank you.
David
Thread
Thread Starter
Forum
Replies
Last Post