| ??? 08/08/06 12:09 Read: times |
#121845 - yes and no Responding to: ???'s previous message |
I mean if the rs485 to rs232 convertor works why remove it
basically I agree, if no compelling reason, why change what works. and give yourself a pretty nasty design problem trying to connect an 8052 directly to a rs485 system? What, pray tell, is 'difficult' about RS485 and the '51 As Rs485 uses differential signaling at upto 10 Mb/s I seriously doubt it can be done very easily, if at all. since he is using a converter, there is no way in hades that it is running very fast. Erik |
| 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 |