| ??? 11/27/11 20:04 Read: times |
#184927 - reset circuit Responding to: ???'s previous message |
The weakness of RC reset is that it does not unconditionally provide a clean pulse. The button may be bouncing and the RC reset may be unadequate to capture the bounces and provide a clean reset. And as the bouncing has mechanical causes, this may change in time.
I assume you are not prepared to replace the RC reset by a proper reset IC, such as the venerable 7705, which would probably be a definitive solution. You can try to experiment with the values of R and C (e.g. removing the R altogether - there is builtin R of around 100kOhm anyway), but there's no guarantee this will definitively help. JW |
| Topic | Author | Date |
| P89V51RD2 And Flash Magic | 01/01/70 00:00 | |
| please suggest | 01/01/70 00:00 | |
| reset button | 01/01/70 00:00 | |
| Reset Button | 01/01/70 00:00 | |
| reset circuit | 01/01/70 00:00 | |
| That's the fundamental flaw with RC resets! | 01/01/70 00:00 | |
| Use a MAX700 | 01/01/70 00:00 | |
| Rest supervisor | 01/01/70 00:00 | |
| How Many Times | 01/01/70 00:00 | |
| This will continue until ... | 01/01/70 00:00 | |
| Power dip | 01/01/70 00:00 | |
| real, but worse if flash | 01/01/70 00:00 | |
| note, that here the main problem is NOT power related... | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| the ultimate joke | 01/01/70 00:00 | |
| SiLabs watchdog | 01/01/70 00:00 | |
| clarification | 01/01/70 00:00 | |
| Beware flash erase time | 01/01/70 00:00 | |
| brownout detection | 01/01/70 00:00 | |
well, | 01/01/70 00:00 | |
| It's not the spec's ... it's the lack of them. | 01/01/70 00:00 | |
| Reset Chip? | 01/01/70 00:00 | |
| Why Ask??? | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
| a plethora of possible chips | 01/01/70 00:00 |