| ??? 05/15/04 05:43 Read: times |
#70390 - Serial communication |
I don't want to use Max232 to connect 89CXXXX to PC, it take a large area. I think: to connect I only need to convert TTL (0-5V) into RS232 (-12, -3V[H]- 3V, 12V [L]). I have a analog circuit to do it, but it takes a large area and not cheap. I think I can use a IC (8 pins) to do it. But I don't know exactly what can be use.
Do anyone know about this problem??? |
| Topic | Author | Date |
| Serial communication | 01/01/70 00:00 | |
| RE: Serial communication | 01/01/70 00:00 | |
| RE: Serial communication | 01/01/70 00:00 | |
| RE: Serial communication | 01/01/70 00:00 | |
| OH NO | 01/01/70 00:00 | |
| Exactly | 01/01/70 00:00 | |
| RE: Exactly | 01/01/70 00:00 | |
| RE: Where is the savings? | 01/01/70 00:00 | |
| RE: Ok Ok,,,,Surface Mount? | 01/01/70 00:00 | |
| RE: Ok Ok,,,,Surface Mount? | 01/01/70 00:00 | |
| RE: Oops !! | 01/01/70 00:00 | |
| RE: Oops !! | 01/01/70 00:00 | |
| RE: Serial communication | 01/01/70 00:00 | |
| RE: Serial communication | 01/01/70 00:00 | |
RE: Serial communication | 01/01/70 00:00 | |
| RE: Serial communication | 01/01/70 00:00 | |
| RE: Serial communication | 01/01/70 00:00 | |
| RE: Serial communication | 01/01/70 00:00 | |
| RE: Serial communication | 01/01/70 00:00 | |
| OT: Coding info | 01/01/70 00:00 | |
| RE: Serial communication | 01/01/70 00:00 |