| ??? 02/29/08 14:25 Read: times |
#151667 - Use interrupt Responding to: ???'s previous message |
Hi,
One way to do this is to let the other output cause an interrupt. The other output is then sampled being low/high. It will indicate the direction. Make the interrupt either rising or falling edge triggered. It does not matter which one and it does not matter either which of the outputs You choose to be sample or triggering the IRQ. This minimizes the number of additional chips to zero. |
| Topic | Author | Date |
| Quadrature Encoder interfacing | 01/01/70 00:00 | |
| Use interrupt | 01/01/70 00:00 | |
| it does NOT work | 01/01/70 00:00 | |
| 'differential' is more than obe thing | 01/01/70 00:00 | |
| Why does clock/direction fail ? | 01/01/70 00:00 | |
| I got it ..... | 01/01/70 00:00 | |
| a quadrature detector .... | 01/01/70 00:00 | |
| Possibly differential | 01/01/70 00:00 | |
| if so, then datasheet would be needed or | 01/01/70 00:00 | |
| Datametrics | 01/01/70 00:00 | |
| need that scope picture (description) | 01/01/70 00:00 | |
| Decoder timing diagram | 01/01/70 00:00 | |
| Scope Waveforms | 01/01/70 00:00 | |
| 485 will be fine, I suggest LT1785 | 01/01/70 00:00 | |
| My original question | 01/01/70 00:00 | |
| Encoders With Differential Outputs | 01/01/70 00:00 | |
| IC Chip Decoder Solutions | 01/01/70 00:00 | |
Project details | 01/01/70 00:00 |