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labsw/LOG: more details on misbehaviour

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This commit is contained in:
Werner Almesberger 2011-09-07 05:13:48 -03:00
parent ed286e6982
commit 09ac71f0e0
1 changed files with 23 additions and 0 deletions
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labsw/LOG
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@ -171,6 +171,29 @@ Rework:
Implemented power supply bypassing according to SiLabs' recommendations:
- added 4.7 uF in parallel to C1
- added 100 nF in parallel to C2
- results:
A test run initially showed about 10% abnormal cycles. Detailed
observation, starting with first anomaly:
- turn-on cycle: CH2 LED green, M1 not powered (CH2 fully off ?)
- 21 normal cycles
- turn-on cycle: all LEDs green, no power (LEDs didn't go dark as they
would in DFU wait, so the MCU didn't reset)
- 8 normal cycles
- turn-on cycle: MAIN and CH2 LED green, M1 not powered
- 31 normal cycles
- turn-on cycle: all LEDs green, no power (not a reset)
- 12 normal cycles
- turn-on cycle: all LEDs green, no power (not a reset)
- 3 normal cycles
- turn-on cycle: all LEDs green, no power (not a reset)
- 3 normal cycles
- turn-on cycle: all LEDs green, no power (not a reset)
- 3 normal cycles
- turn-on cycle: all LEDs green, no power (not a reset)
- 68 normal cycles
- turn-on cycle: all LEDs green, no power (not a reset)
- 5+ normal cycles
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