| ??? 01/08/06 05:08 Read: times |
#106830 - re not pull up issue Responding to: ???'s previous message |
Dear Joseph,
that post just shows why the pin can differ from Latch. For example if yopu output a '1' it just turns off output transistor notheing else. if you connected pull ups externally these pullups will try to pull the pin up to Vcc. but at the same time if anything else is connected to the pins and sinking much more current than your pull ups can source you may read a '0' even if you have wrtitten a '1' to the corresponding latch. Abhishek |
| Topic | Author | Date |
| Different value in Port 0 and on Pins. | 01/01/70 00:00 | |
| Register is not the port | 01/01/70 00:00 | |
| similar happened here | 01/01/70 00:00 | |
| Not pull up issue | 01/01/70 00:00 | |
| re not pull up issue | 01/01/70 00:00 | |
| And you use pull-ups at port 0? | 01/01/70 00:00 | |
| Code | 01/01/70 00:00 | |
| PRE tag !! | 01/01/70 00:00 | |
| Just experimenting with PRE | 01/01/70 00:00 | |
| one step forward, two back.... | 01/01/70 00:00 | |
| old code | 01/01/70 00:00 | |
| Sorry but | 01/01/70 00:00 | |
| The perks, and the pull ups | 01/01/70 00:00 | |
| ideal system | 01/01/70 00:00 | |
| Code | 01/01/70 00:00 | |
| Yep. That's really what I want to do | 01/01/70 00:00 | |
| Everybody Stop | 01/01/70 00:00 | |
| Problem Solved | 01/01/70 00:00 | |
| Hey Craig or Steve | 01/01/70 00:00 | |
Remember | 01/01/70 00:00 |