button pullup/down resistor?

[davewanna]

I would go that far... you see, that also means, that my nIRQ interrupt pin that would not go high, no matter what, was also assigned as an output... And that is a problem that i have spent a lot of time on.

I'm sure there's a saying somewhere about the worst problems are ones that you cause yourself.


You will be pleased to know also that I have stopped re-inventing the wheel. And am now using shiftin/shiftout for my RFM12. I am currently receiving something, it's not what I am transmitting yet, but it's a start. I had actually missed your earlier post in my other thread recommending to use shiftin/shiftout. If I had have seen that, it would also have saved me a lot of time.

I can now go and try to work out how much of this received info is status bits, and how much is actual received data.

Anyway skimask, you are my new hero... Mister_e is back to number 2... haha

[abidr]

I'd rather code the button to debounce something like below:
CHECK_PB:
IF PB = 0 THEN DEBOUNCE_PB
RETURN

DEBOUNCE_PB:
PAUSEUS 200
IF PB = 0 THEN CHECK_PB

MENU_CNT = MENU_CNT + 1

RETURN
and before that I would prefer to make the pin connected to button as output..

[skimask]

I'd rather code the button to debounce something like below:

True...but the thing has to be working halfway in the first place...then all the options can be added...
No sense in having spanky shiny rims on a car without an engine?

[abidr]

You need to look at the PIC16F877A data sheet page 51 which says that port D is a parallel Slave Port.
I think you need to disable the PSP.

[skimask]

You need to look at the PIC16F877A data sheet page 51 which says that port D is a parallel Slave Port.
I think you need to disable the PSP.

You mean the Parallel Slave Port that's disabled by default on power up, thereby letting Port D function as normal I/O?