| ??? 09/04/07 18:09 Modified: 09/04/07 18:10 Read: times |
#144010 - neither Responding to: ???'s previous message |
Where is the bug ? RTC or MCU ?
neither, It's the RC reset. with a RC reset, you (often) get a small window of unpredictable behaviour during power down (with a lousy power supply, during power up as well). NOTE: this is NOT a 'defect'. Every time that the circuit powers up , the value 00H overwrites on first byte means location 0000H of RTC automatically and previous data in this location clears I believe that your conclusion is wrong, I beleive this happen "Every time that the circuit powers down" (the difference is often difficult to tell) Erik |
| Topic | Author | Date |
| 00H overwrites first RTC Address byte | 01/01/70 00:00 | |
| Ha! Our favorite reset problem! | 01/01/70 00:00 | |
| Sorry, The pic ... | 01/01/70 00:00 | |
| yes, this is it | 01/01/70 00:00 | |
| Reason is promotion tool ! | 01/01/70 00:00 | |
| neither | 01/01/70 00:00 | |
| actually, in this case... | 01/01/70 00:00 | |
| I am not completely certain in this case... | 01/01/70 00:00 | |
| I suspect | 01/01/70 00:00 | |
| only if the external device is bipolar or | 01/01/70 00:00 | |
| Not so sure | 01/01/70 00:00 | |
still - not really | 01/01/70 00:00 |