Date:2011-09-07 10:13:48 (7 years 9 months ago)
Author:Werner Almesberger
Commit:09ac71f0e0f1e650bc7e10d10b77dfad10057380
Message:labsw/LOG: more details on misbehaviour

Files: labsw/LOG (1 diff)

Change Details

labsw/LOG
171171  Implemented power supply bypassing according to SiLabs' recommendations:
172172  - added 4.7 uF in parallel to C1
173173  - added 100 nF in parallel to C2
174- results:
175  A test run initially showed about 10% abnormal cycles. Detailed
176  observation, starting with first anomaly:
177
178  - turn-on cycle: CH2 LED green, M1 not powered (CH2 fully off ?)
179  - 21 normal cycles
180  - turn-on cycle: all LEDs green, no power (LEDs didn't go dark as they
181    would in DFU wait, so the MCU didn't reset)
182  - 8 normal cycles
183  - turn-on cycle: MAIN and CH2 LED green, M1 not powered
184  - 31 normal cycles
185  - turn-on cycle: all LEDs green, no power (not a reset)
186  - 12 normal cycles
187  - turn-on cycle: all LEDs green, no power (not a reset)
188  - 3 normal cycles
189  - turn-on cycle: all LEDs green, no power (not a reset)
190  - 3 normal cycles
191  - turn-on cycle: all LEDs green, no power (not a reset)
192  - 3 normal cycles
193  - turn-on cycle: all LEDs green, no power (not a reset)
194  - 68 normal cycles
195  - turn-on cycle: all LEDs green, no power (not a reset)
196  - 5+ normal cycles
174197
175198---------------------
176199

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