| ??? 02/24/06 20:59 Read: times |
#110729 - depends on power supply Responding to: ???'s previous message |
All the RC problems - used for reset or anything else - stem from one thing - they require precisely controlled behaviour of the power supply. It must not bounce, oscillate, it must have a nice fast powerup and powerdown ramps, it must not misbehave on rapid removal and reapplying of the AC voltage (or any other primary supply) in any sequence and timing.
To create such a power supply is much much more complicated than using the proper reset/supervisor IC. I don't know exactly what may be the consequences of using the LPC9xx with the reset pin used as input, but - sorry, Philips - it smells of troubles... A sidenote, do you have active signals from "outer world" on the other ICP pins at powerup/powerdown? Jan Waclawek |
| Topic | Author | Date |
| P89LPC932A1 EEPROM corruption | 01/01/70 00:00 | |
| please explain | 01/01/70 00:00 | |
| LPC932 eeprom corruption | 01/01/70 00:00 | |
| depends on power supply | 01/01/70 00:00 | |
| lpc932A1 eeprom corruption | 01/01/70 00:00 | |
that one code works does not prove that | 01/01/70 00:00 |