Power and Signal Grounds
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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).
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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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roarin_mouse
- MegaSquirt Newbie
- Posts: 9
- Joined: Fri May 30, 2008 8:31 am
- Location: Orlando, FL, GOOD OLE U.S.A.
Power and Signal Grounds
Why is it that the schematics show no distinction between the power-grounds and signal grounds. This would be good to know in troubleshooting noise issues. Can someone resolve this for me?
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: Power and Signal Grounds
The two ground planes meet at the DB37 connector so they're not completely isolated. The power ground plane uses R43's ground pad and all components on the heat sink except U5. Everything else grounds to the signal plane.
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roarin_mouse
- MegaSquirt Newbie
- Posts: 9
- Joined: Fri May 30, 2008 8:31 am
- Location: Orlando, FL, GOOD OLE U.S.A.
Re: Power and Signal Grounds
Thanks.