A/D Propeller Question

Tom P

I have the Propeller Demo board hooked up with an LTC1298 A/D chip.
I ran the CD_1298.spin program from the Propeller Exchange but see no output on the screen.

Question: Is this program supposed to display voltages on the screen?
··············Does this program have a output to see voltages from the A/D?

thanks for any help!
Tom

StefanL38

Hello Tom,

as you can see inside the CD_Test_LCT1298.SPIN-file this file uses
the followong objects

OBJ
tv : "TV"
gr : "CD_Graphics"
Num : "CD_Numbers"
adc : "CD_LTC1298"

This means you should see something on a TV.

As your question is very basic I recommend to check the following things:

did you compile and transfer the file "CD_Test_LTC1298.spin" ?

Do the IO-pins on the demoboard connected to the TV-DAC fit with the definition inside
the SPINfile ?

here I comment on the documentation of the LTC-1298-object
there is no documentation at all ! The only documentation is the chip-number

this is "extensivly too much" documentation

Does their exist a special reason why the documentation and adjusting of the TV-object is so cryptic ?

best regards

Stefan

Tom P

Sorry for the confusion:

I loaded the CD_LTC1298.spin and compiled the -- not the CD_Test_LTC1298.spin.
Looking at the CD_LTC1298.spin - iam not sure how that program displays its output.
Iam looking for help to be able to output a serial data stream based on the output.
How would I do that?
thanks
Tom