This test can only be performed if firmware has already been loaded. As supplied, most Megasquirt-2 in kit form are supplied ‘blank’ without firmware loaded. In this case it was COM1. Serial cable loopback test Note! Any characters you type into the top window should be quite literaly “looped back” to the bottom window. I had issues with my serial-to-USB-adapter until I downloaded it, and then it worked like a charm. Send a private message to Ben.
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If you do not then there is a serial problem somewhere. Thread Tools Show Printable Version. Stock TPS is still connected since i dont of an aftermarket one installed. Be certain not to bend con pins.
Megasquirt Support Forum (MSEXTRA)
Originally Posted by reverant. This would usually indicate either your forgot to plug in your USB-serial cable or there is a driver problem. Use this COM port number when setting up your tuning software. Most drivers allow you to change the com port number through the device manager.
Make sure it’s plugged into the port that it’s megasquirf to read. Alternative for Windows Right-click and save portcheck. Before starting the instructions, a word of advice. This performs a “loopback” test where the serial signal should go out from the computer, through the short and back into the computer again. Send a private message to Faeflora. In this case it is normal for TunerStudio to report no connection and for the firmware loopback tests to clm.
Firmware serial comms test Note! Open MiniTerminal as above in step 7,8. For the two windows 7 machines i used the following adapters: Does the car start or try to catch even with the laptop disconnected? Start TunerStudio or other tuning software. So im not sure where im going wrong but whenever i go to test my serial port the test ckm.
Ensuring there are no shorts underneath the board, re-connect your serial cable and apply power. Select the Device Manager from the list at the megasqulrt.
Find More Posts by Ben. The next step is loading the firmware to your MS2. Send a private message to Ben. Lift it out progressively by prying up each megwsquirt a fraction at a time. Be sure to have TunerStudio installed.
Megasquirt Support Forum (MSEXTRA) • com port settings? (View topic)
If you computer does not have a standard serial port, as is the case with many computers over the last few years, then you probably have USB only and will need a USB-serial adapter cable. Send a private message to Reverant.
This will bring up the Computer Management screen. If tests A, B and C all pass but you are having problems with the tuning software, it is most likely a settings problem within the tuning software itself. Originally Posted by v01canic. Type a capital ‘S’ and you should see a signature string returned in the lower window as shown here. Sure you’ve downloaded the correct drivers for windows? Computer DB9 serial port.