| ??? 06/12/05 10:58 Read: times |
#94717 - actually i tried in single instruction Responding to: ???'s previous message |
To Karas:
sir, actually i did the selecting & deselecting in a single instruction as below. In to make understandable to others i posted that codes original code: Mov P1,#00100000B this will enable P1.4 connected EEPROM and disables P1.5 connected 8255 will it be a problem? and can i try by adding Mov P1,#FFh before doing the selection-deselection operation? |
| Topic | Author | Date |
| external memory access problem | 01/01/70 00:00 | |
| my first suggestion.... | 01/01/70 00:00 | |
| actually i tried in single instruction | 01/01/70 00:00 | |
| more | 01/01/70 00:00 | |
| Relic Chips Are Slow | 01/01/70 00:00 | |
| Memory Map IT !! | 01/01/70 00:00 | |
| and then you may get others | 01/01/70 00:00 | |
| Such AS ?? | 01/01/70 00:00 | |
| with the '51 | 01/01/70 00:00 | |
| 8085/805x <=>8255 | 01/01/70 00:00 | |
| to slow, too low | 01/01/70 00:00 | |
really need more info to be helpful | 01/01/70 00:00 | |
| Query | 01/01/70 00:00 | |
| re query | 01/01/70 00:00 |