| ??? 03/22/09 09:58 Read: times |
#163761 - sending DMX512 Responding to: ???'s previous message |
It has been many years (~20) since I've done anything with DMX512. Actually, DMX512 was the reason I started using 8051s as it was about the only micro that could do DMX512 without any extra hardware at that time. My recollection is shaky, but I think you need to disable the uart, clear the txd port pin, wait the required >=88us, setb the txd pin then re-enable the uart. |
| Topic | Author | Date |
| 8051 DMX controller (sender) | 01/01/70 00:00 | |
| Forgot to say... project is using 16mhz crystal | 01/01/70 00:00 | |
| Please enlighten us what you mean by "break" | 01/01/70 00:00 | |
| Seems similar to break on RS232 cable | 01/01/70 00:00 | |
| Ok, then... | 01/01/70 00:00 | |
| I think it is just.... | 01/01/70 00:00 | |
| Switch to another serial port mode,... | 01/01/70 00:00 | |
| If Timer 1 is free, use this one. | 01/01/70 00:00 | |
| More about break | 01/01/70 00:00 | |
| Could be possible... | 01/01/70 00:00 | |
| sending DMX512 | 01/01/70 00:00 | |
| Works for Kathy's / Disable uart | 01/01/70 00:00 | |
| Should work... | 01/01/70 00:00 | |
break | 01/01/70 00:00 |