| ??? 03/13/08 22:50 Read: times Msg Score: +1 +1 Good Question |
#152243 - Can you add a flip-flop? Responding to: ???'s previous message |
or other hardware to detect the start condition? That's the hardest part.
There is some discussion of it below, and CC INK or ESP mag did an article on this technique years ago. http://www.nabble.com/Re:-i2c-S...77487.html Start transition: Use the falling edge of SDA to clock a flop with SCL as the D input. Use SCL low to reset the flop. The output of the flop is used to reset the interface state machine. |
| Topic | Author | Date |
| soft I2C slave | 01/01/70 00:00 | |
| pass on one bit of experince | 01/01/70 00:00 | |
| the cost of developing a bit banged IIC slave ... | 01/01/70 00:00 | |
| If you want to find Public Source Code... | 01/01/70 00:00 | |
| like this.. | 01/01/70 00:00 | |
| Can you add a flip-flop? | 01/01/70 00:00 | |
| Only 1 master and 1 slave..or | 01/01/70 00:00 | |
| what is the sensor? | 01/01/70 00:00 | |
| Why soft? | 01/01/70 00:00 | |
| GPIO/something else or micro | 01/01/70 00:00 | |
| Simplest way | 01/01/70 00:00 | |
| Thank's Andy | 01/01/70 00:00 | |
| Don't just thank me... | 01/01/70 00:00 | |
Many thank's | 01/01/70 00:00 | |
| all SILabs, most NXP LPC9xx | 01/01/70 00:00 | |
| No Shortage!! | 01/01/70 00:00 | |
| Devices Found = 263. | 01/01/70 00:00 | |
| know of none | 01/01/70 00:00 |