| ??? 05/16/08 03:31 Read: times |
#154808 - Send slave ID again.. Responding to: ???'s previous message |
As Erik Said that only one transmittter active in a time...
So, as my experience, the work should as below - Master send Slave 1 ID, then must wait acknowledge from slave 1, after receive this ACK master can continue to tranmit other data to slave 1 or change to connect to slave 2. - To communicate with slave 2, off course first must send slave 2 ID.. 8051 have SM2 bit for multiprosesor communication..you can use it |
| Topic | Author | Date |
| RS | 01/01/70 00:00 | |
| Sorry about the subject-- I should ahve typed | 01/01/70 00:00 | |
| how do you expect that to work? | 01/01/70 00:00 | |
| Send slave ID again.. | 01/01/70 00:00 | |
| one transmitter | 01/01/70 00:00 | |
| maybe | 01/01/70 00:00 | |
| Keep in mind that RS485 also... | 01/01/70 00:00 | |
| I'd get rid of the "OE" | 01/01/70 00:00 | |
| I agree | 01/01/70 00:00 | |
| more to add | 01/01/70 00:00 | |
| get rid of the OE | 01/01/70 00:00 | |
| how can slave turn OE line high? | 01/01/70 00:00 | |
| 1 Suggesion to get slave ID | 01/01/70 00:00 | |
| again: OE will not work | 01/01/70 00:00 | |
| OE line connected , but not used | 01/01/70 00:00 | |
| changes | 01/01/70 00:00 | |
| Use ID as timer value | 01/01/70 00:00 | |
Use ID as timer value wil not work ... | 01/01/70 00:00 |