| ??? 11/20/07 06:51 Read: times |
#147234 - My anser Responding to: ???'s previous message |
I think I found the problem.
Directly after the MOVX RDY\BSY' is still high thus giving a false ready signal. So we read when write is still in progress, this explains the inverted high bit. I fixed the problem by putting a 1 msec delay after the MOVX. It takes 4 msec to write so when the delay is over we're in the write sequence and RDY\BSY' has gone low to indicate the write in progress. |
| Topic | Author | Date |
| Problems writing EEPROM on AT89S8253 device | 01/01/70 00:00 | |
| I know this is entirely unhelpful, but... | 01/01/70 00:00 | |
| Try this... | 01/01/70 00:00 | |
| My anser | 01/01/70 00:00 | |
| Goofy chip | 01/01/70 00:00 | |
| Problems writing EEPROM on AT89S8253 device | 01/01/70 00:00 | |
| just to sample a few from this very Forum... | 01/01/70 00:00 | |
in an earlier post I wsrote | 01/01/70 00:00 |