self diagnostic problem 16F819

Hello there

I'm working on a "yellow metal" LCD display dashboard, it took me a very very long time so far ( years ) and is finally ready for a test ride.

In order to improve on the hardware diagnostic ( broken wire warning etc ...)
I still remain with a problem that has me shaking my head.

When the microcontroller is started without a connection to the tempval = adin 1
see tempcalc: then it does not display the results from adin 2 and adin3
namely the battery voltage and the oil pressure warning light.

I would like to improve the program so it can diagnose and display all hardware problems
as much as possible

tempcalc:
tempval = Adin 1 ' Read portA.1 to tempval
If tempval > 1000 then goto tf ' faulty connection
If tempval > 415 then goto cold
if tempval > 320 then goto calc1
If tempval > 241 then goto calc2
If tempval > 157 then goto calc3
If tempval > 112 then goto calc4
If tempval < 113 then goto tf ' faulty wiring or sender - short to ground.

the program and hardware connections:

www.skidloaders.co.za/pic/LCDDv21.bas

a picture when all goes well

www.skidloaders.co.za/pic/LCDdash1.JPG

a picture when wire of temperature gauge is not connected

www.skidloaders.co.za/pic/LCDdash2.JPG


It's getting late so - to all - goodnight
Wilfried

Try something like

Code:

---

If tempval = 0 then go someplace else

---

Or do an IF THEN ELSE at the end of the tempval block.

It looks like the program is stuck waiting on "tempval".

after all the calc routines theres goto tempdisp but for the tf routine you have goto loop. never gets to temp display.

Thanks guys

Hi,


Vade Retro ... Satanas !!!

" written in proton+ 2 by Wilfried Smekens "

What does proton+ 2 really mean ???

Alain

Bonjour Alain

Proton Plus version 2

Similar Pic Basic pro language as microcode. ??

I actually bought microcode in the belief that is was the newer version of Proton.
I still have not used it but will probably will once the 18F series become more used.

Kind regards
Very wet South Africa. ( we needed the rain real badly )
Wilfried