Mcp3208 adc help

[mister_e]

That seems odd but I'm rusty, so I've ordered a couple of those ADCs. Should have them tomorrow.

Another thing you could try (though I may need another strong coffee)... keep your original code, but read the data on clock falling edge instead of rising edge.

[mister_e]

Duh?!?

3.6 Serial Data Output (DOUT)
The SPI serial data output pin is used to shift out the
results of the A/D conversion. Data will always change
on the falling edge of each clock as the conversion
takes place.

Change your clock idle from low to high, and see what happen.

[mister_e]

That was easy

        high cs
        Pause 100 ' Pause to see display on LCD.
Main:
        LOW CS ' Enable ADC
        SHIFTOUT DataOut, Clock, 2, [%11000] ' Select CH0, Single-Ended
        high Clock
        SHIFTIN DataIn, Clock, 6, [result0\13] ' Read ADC
        HIGH CS ' Disable ADC
        Low Clock
        LCDOUT $FE,1,"ADC: ",dec result0
        PAUSE 100 'Pause long enough to read LCD.
        Goto Main

now read the datasheet to know why it works