windows 7

[wheels777]

i'm using an adapter cable from usb to db9 on a megasquirt i with a hp laptop with windows 7. no luck at all. i keep getting the same error message-(cannot communicate with controller).
tried all tw/hei ignitionhe fixes but to no avail. please help! i am somewhat of a newbie. have had one unit running pretty good. both motors are corvairs w/hei ignitions. went from
a single injector to 2. tbi units. thanks. wheels777@netzero.net

[Matt Cramer]

To do this check, you'll need the program portcheck.exe, which comes with most MegaTune versions, including the one on the DIYAutoTune.com website. You'll find it in the MegaTune2.25 folder. If you don't have a copy, download it here:

http://www.DIYAutoTune.com/downloads/tu ... tCheck.zip

Power up the Megasquirt and connect it to your PC. You do not need to open the case and should not put the boot jumper in place for this test. Close MegaTune if it's running, and run the portcheck.exe program. When this program starts, it will scan the available COM ports.

If the port it's scanning is not connected to a working Megasquirt, or it's on the wrong speed, it'll say "No connection made." If it's on the right port and right speed, it will give you the version of the Megasquirt firmware that's on the Megasquirt. Note that some Megasquirt firmware versions will look like earlier versions with this test - for example, 029V identifies it as 029Q. This is for backwards compatibility.

If you get a port where it replies with "S" or something else that doesn't look like a firmware version, this port is probably a fake COM port that echos back everything that's typed.

Could you cut and paste the message you get and post it here?

[LT401Vette]

What version of TunerStudio are you using?

If you are using 2.0+, the built in detect is much more thorough than the old PortCheck.

[trakkies]

Just to add, not all Serial to USB adaptors are the same. Some don't work with MS. If you can use an old computer with a proper serial port, that would rule out the adaptor. Most MS retailers will sell you an adaptor guaranteed to work. Or do a search here for what to look for.

[WASyL]

most Profilic adapters with newest driver (v1.6) work properly, i,ve checked like 10 different of them

best regards