25 lines
1.1 KiB
Markdown
25 lines
1.1 KiB
Markdown
## HOWTO test brand new ECU design which was never fabricated before
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If dealing with a brand new never before tested hardware design it's recommended to gradually add wires one by one.
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# Prerequisites for each testing session
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1. Charge battery
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1. Disconnect battery charger
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1. Warm up car on stock ECU
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1. Charge laptop battery
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1. Disconnect laptop from wall charger.
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# Minimal ECU Power Test
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1. Write down battery voltage measured at the battery, with charger and all ECUs physically disconnected.
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1. Hook up Power GND
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1. Hook up ECU power source
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1. Test & Report, with USB physically disconnected: ECU status LED starts to blink if powered up, ECU status and all LED go off when powered off.
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1. Test & Report, with USB physically disconnected: Attempt cranking. If equipped with on-board persistent storage, upload & link log to report.
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1. Connect ECU to laptop via serial, report type of serial.
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1. With laptop connected via serial, test & Report, with USB physically disconnected: ECU status LED blinks if powered up, ECU status LED blinks when ignition powered off.
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