Using an LTC1298 with BS2 Stamp.

poorieuser

I'm doing a research projects involving battery voltage. While review the LTC1298 AppNote packet I've come to the the section of the code "config= config|%1011". Can anyone explain to me where the 1011 comes from? For reference the whole of the code is below.

LTC1298 AppNote said...
convert:
config = config | %1011 ' Set all bits except oddSign.
low CS ' Activate the ADC.
shiftout DIO_n,CLK,lsbfirst,[noparse][[/noparse]config\4] ' Send config bits.
shiftin DIO_n,CLK,msbpost,[noparse][[/noparse]AD\12] ' Get data bits.
high CS ' Deactivate the ADC.
return ' Return to program.

Orginal @ http://parallax.com/dl/docs/prod/appkit/ltc1298.pdf

sumguy16

Those are the configuration bits, check out the data sheet of the LTC1298: http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1155,C1001,C1158,P1444,D2760 on page 12, you can config. the ADC to SE/DIFF and the endian type of the data.


ATP

poorieuser

Thank you for the help and the speedy reply. I spent three hours looking at the AppNote and never thought to recheck the data sheet.