| ??? 11/08/06 16:38 Read: times |
#127590 - Brown outs Responding to: ???'s previous message |
I had a similar problem with an Atmel AVR. After a lot of hassle, Atmel produced an errata sheet which explained that the inbuilt Power-On-Reset cum brownout detector didn't protect the EEPROM from random changes during power-up and power-down sequences. Their recommendation was to use a "proper" externel reset chip.
Rearrange the words: chocolate as a teapot useless as |
| Topic | Author | Date |
| AT89S8253 EEPROM data loss | 01/01/70 00:00 | |
| Standard question #1: | 01/01/70 00:00 | |
| nonstandard question #1 & #2 | 01/01/70 00:00 | |
| Brown outs | 01/01/70 00:00 | |
| now where have I seen that... | 01/01/70 00:00 | |
| so, that is sill the case | 01/01/70 00:00 | |
| Check the errata | 01/01/70 00:00 | |
| do you remember the first 932 ? | 01/01/70 00:00 | |
| Still not able to reproduce the error | 01/01/70 00:00 | |
| If the internal POR/BOD isn't working correctly .. | 01/01/70 00:00 | |
| if that is possible | 01/01/70 00:00 | |
| External reset chip and and and | 01/01/70 00:00 | |
| i agree half the way | 01/01/70 00:00 | |
I see what you mean.. | 01/01/70 00:00 |