HI i have a slight problem with my new v2.2 board. i have wired up the harness as per the diagrams and i have no communication on megatune. i have checked the port settings and have checked the supplys to the ecu
i have a good earth and an ignition switched battery supply on pin 26, i am really stuck for ideas as i have checked everything like 4 times now. not sure whether i should have any leds lit up to show it has powered up correctly?
many thanks in advance
Problems with first communication
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The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: Problems with first communication
Try a different test. 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.
Let me know what results you get.
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.
Let me know what results you get.
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ForumAdminTeam
- Site Admin
- Posts: 78
- Joined: Mon Dec 25, 2006 8:45 am
Re: Problems with first communication
Fezzy_04,
Is this the same board we identified as a red counterfeit board earlier?
Forum Admin Team
Is this the same board we identified as a red counterfeit board earlier?
Forum Admin Team
Re: Problems with first communication
Very much the same prob as this guy. v2.2 ms1. took the suggestion and the program found my com port and speed. made sure it was the same in megatune and still nothing. genuine board that hooked to a stim. Blinks like its supposed to and responds to various knob turns from the stim. cant get it talkin to megatune though.
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Bernard Fife
- Master Squirter
- Posts: 475
- Joined: Thu Oct 29, 2009 12:54 pm
Re: Problems with first communication
"Never wrestle with pigs. You both get dirty and the pig likes it.” - George Bernard Shaw