| ??? 03/22/05 20:09 Read: times |
#90263 - Reset must meet the specs Responding to: ???'s previous message |
Once we used an improper design for a 2051 reset (we were young and stupid), after the long positive pulse it sometimes produced spurious short pulses (shorter than the required 12 clocks). The system sometimes went completely crazy. Of course we first thought on a software error (funnily enough, we really found one...) I finally wrote a series of tests and found out that (when the pulses occured) the 2051 started executing at address 102h rather than 0... But, it is often said, that Atmel chips' flash gets corrupted with improper reset - it never happened here... Jan Waclawek |
| Topic | Author | Date |
| 80C32 behavior at power up | 01/01/70 00:00 | |
| basically | 01/01/70 00:00 | |
| iram | 01/01/70 00:00 | |
| Why | 01/01/70 00:00 | |
| I fly too | 01/01/70 00:00 | |
| erk | 01/01/70 00:00 | |
| 'THE' not 'a' | 01/01/70 00:00 | |
| this is why | 01/01/70 00:00 | |
| all or nothing ! | 01/01/70 00:00 | |
| Reset must meet the specs | 01/01/70 00:00 | |
| Not only Atmel's ... | 01/01/70 00:00 | |
| so dont guess........ | 01/01/70 00:00 | |
| Dropping planes | 01/01/70 00:00 | |
| It can! | 01/01/70 00:00 | |
Not Silicon Failures | 01/01/70 00:00 | |
| This guess can make you die... | 01/01/70 00:00 | |
| If... | 01/01/70 00:00 | |
| Life support. | 01/01/70 00:00 |