One more time with this LTC1298

Guido

I have done and tried everything including changing Stamps and LTC1298. I have checked all the wiring but still no success. I think I might have something in the program that might be making this not work. I just can not get any output from this program...It does switch between chan 0 and 1.
Any help would be greatly appreciated.

DaveG

Guido,

I have used the LTC1298 many times with the same code and have been successful.
I think your program has two very minor problems that can be easily fixed.

PROBLEM 1:
**********
Original code:
CONFIG VAR Nib
STARTB VAR Bit 'CONFIG.BIT0
SIGIDIF VAR Bit 'CONFIG.BIT1
ODDSIGN VAR Bit 'CONFIG.BIT2
MSBF VAR Bit 'CONFIG.BIT3

Fixed code:
CONFIG VAR Nib
STARTB VAR CONFIG.BIT0
SIGIDIF VAR CONFIG.BIT1
ODDSIGN VAR CONFIG.BIT2
MSBF VAR CONFIG.BIT3

The CONFIG.BIT0 modifier designates STARTB as an alias for Bit 0 of the CONFIG variable, etc.


PROBLEM 2:
***********
Original code:
CONFIG = CONFIG / %1011

Fixed code:
CONFIG = CONFIG | %1011

The "|" (OR operator) is needed here, instead of the "/" (DIVIDE operator).
FYI, the "|" is located on the keyboard above the "\". It looks like two vertical dashes.


The rest of the code looks fine.

Dave G

Guido

Dave, Thank You very much!!!!
See you can teach an old Italian new tricks......I did not know where that staright up and down line was!!!!! Now I know and that was all I had to change to make it work...Thanks again for your help and time. I really do appreciate it.
Guido