| ??? 04/04/08 21:50 Read: times |
#152972 - Pull-up is needed Responding to: ???'s previous message |
The I2C clock is an open-drain output. It has to be to detect bus conflicts between two masters. (If the master is not driving the clock, and it is still low, then there is another master on the bus.)
So, there needs to be one pullup for each clock and data line. |
| Topic | Author | Date |
| I2C pullup requirements | 01/01/70 00:00 | |
| Multi master | 01/01/70 00:00 | |
| Pull-up is needed | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
| Confirm pullup needed | 01/01/70 00:00 | |
| correct all | 01/01/70 00:00 | |
| It depends | 01/01/70 00:00 | |
| not just that | 01/01/70 00:00 | |
| I2C R pull ups Requements | 01/01/70 00:00 | |
| Or use a constant Current Source | 01/01/70 00:00 | |
| and a good one if it is .. | 01/01/70 00:00 | |
| Hhm... | 01/01/70 00:00 | |
| Extend over a distance... | 01/01/70 00:00 | |
Thanks for this informative reply! | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 |