| ??? 04/10/07 11:45 Read: times |
#136900 - Another recipe is a ring!!! Responding to: ???'s previous message |
Maybe strange but...
you can make old architecure of TOKEN Ring. Just connect TX from PC to first microprocesor RX, TX of first do RX second, TX of second to RX of PC and you have closed ring. All system should have the same baudrate, parity and word length. All you should to do its just resend procedure of TOKEN (TOKEN RING Style) in closed ring. Every one microprocesor have its own adres, mayby information of command WRITE/READ and resend TOKEN to another, so when PC is sending sth to second microprocesor, first microprocesor just resending packet trought. Second microprocesor reading tis packet and add data and resend it to ring. So you just put from PC - "Your ring controler", any command to TX and wait for answer on RX, and so on so on. |
| Topic | Author | Date |
| multiple 8052 communication with PC | 01/01/70 00:00 | |
| RS485 | 01/01/70 00:00 | |
| More COM: Ports | 01/01/70 00:00 | |
| Further additional COM: ports | 01/01/70 00:00 | |
| multiple 8052 communication with PC | 01/01/70 00:00 | |
| Simple solution | 01/01/70 00:00 | |
| Recipe for a short circuit? | 01/01/70 00:00 | |
| Not on a standard 8051? | 01/01/70 00:00 | |
| whether that is a problem is for the OP to determi | 01/01/70 00:00 | |
| protocol ?? | 01/01/70 00:00 | |
| yes - no - see above | 01/01/70 00:00 | |
| master slave PC performance | 01/01/70 00:00 | |
| multi-GHz PC can get a lot done in a few ms! | 01/01/70 00:00 | |
| Slave comms controller? | 01/01/70 00:00 | |
| expanding on th above | 01/01/70 00:00 | |
| For just two devices | 01/01/70 00:00 | |
| been there, done that | 01/01/70 00:00 | |
In this case... | 01/01/70 00:00 | |
| Interrupt Request? | 01/01/70 00:00 | |
| not really | 01/01/70 00:00 | |
| Not on a PC | 01/01/70 00:00 | |
| Not that it can't be done | 01/01/70 00:00 | |
| Another recipe is a ring!!! | 01/01/70 00:00 | |
| sure, if you have all the time in the world | 01/01/70 00:00 |