| ??? 05/11/04 12:11 Read: times |
#70169 - RE: couldn\'t operate external RAM Responding to: ???'s previous message |
No, no, I can do manual operation with ALE connected to P1.7, however definitely not with MOVX instruction. I mean controlling P0 and P2 by MOV. This problem has been finally solved. Thanks a lot for your help. It was a little metal connected the VCC, /WR and one of the address signal caused all these issues. normally, extra pull-up resistors do not effect data, address bus signals. |
| Topic | Author | Date |
| couldn\'t operate external RAM | 01/01/70 00:00 | |
| RE: couldn\'t operate external RAM | 01/01/70 00:00 | |
| RE: couldn\\\\\\\'t operate external RAM | 01/01/70 00:00 | |
| RE: 8282 | 01/01/70 00:00 | |
| RE: couldn\\\\\\\'t operate external RAM | 01/01/70 00:00 | |
| RE: Museum Grade Technology | 01/01/70 00:00 | |
| RE: couldn\'t operate external RAM | 01/01/70 00:00 | |
| RE: couldn\'t operate external RAM | 01/01/70 00:00 | |
| RE: couldn\'t operate external RAM | 01/01/70 00:00 | |
RE: couldn\'t operate external RAM | 01/01/70 00:00 |