| ??? 08/08/06 07:48 Modified: 08/08/06 07:53 Read: times |
#121826 - What?? Responding to: ???'s previous message |
You use MAX485 chip and connect it to 8052 directly without the max232.
However if the other end was a PC with RS232 (which is not in your case) you use RS232 to RS485 converter. If you are using point to point communication you use RS422. If you use point to multi point you use RS485. Unfortunitly you have to do alot of reading to accomplish your task. Mahmood |
| Topic | Author | Date |
| 485 connection with 8051 | 01/01/70 00:00 | |
| Why? | 01/01/70 00:00 | |
| yes and no | 01/01/70 00:00 | |
| What?? | 01/01/70 00:00 | |
| That's how one learns things. | 01/01/70 00:00 | |
| 485 connection with 8051 | 01/01/70 00:00 | |
| how to connect pin nos 2(RE) & 3(DE) | 01/01/70 00:00 | |
| I mean | 01/01/70 00:00 | |
| once again | 01/01/70 00:00 | |
| 485 connection with 8051 | 01/01/70 00:00 | |
| Hai | 01/01/70 00:00 | |
| 485 chip | 01/01/70 00:00 | |
| Delay | 01/01/70 00:00 | |
| totally imprecise not enough/too much | 01/01/70 00:00 | |
| Sure | 01/01/70 00:00 | |
which was made before yours! | 01/01/70 00:00 | |
| Sure | 01/01/70 00:00 | |
| ??? | 01/01/70 00:00 | |
| Have you considered reading the datasheets? | 01/01/70 00:00 | |
| have a look at SN75176B | 01/01/70 00:00 | |
| anyone would be foolish attempting 485 | 01/01/70 00:00 |