Prop ASC A/D problem/question

kfurem

I"m using a Propeller ASC with a BOE shield. I"m having problem with the analog inputs.

Using the "mcp3208" object as a driver with the following settings.

DataPin= 26
ClkPin= 25
CSPin=27
Mode =1

and the following statement to start it: adc.start(DataPin, ClkPin, CSPin, 1)

The problem is, it will only read Analog Input 0, which it does fine. Am I missing something here?

Thanks,

Publison

kfurem wrote: »

I"m using a Propeller ASC with a BOE shield. I"m having problem with the analog inputs.

Using the "mcp3208" object as a driver with the following settings.

DataPin= 26
ClkPin= 25
CSPin=27
Mode =1

and the following statement to start it: adc.start(DataPin, ClkPin, CSPin, 1)

The problem is, it will only read Analog Input 0, which it does fine. Am I missing something here?

Thanks,

''   mode  = channel enables in bits 0..7, diff mode enables in bits 8..15

adc.start(dpin, cpin, spin, 255)  'Start the MCP3208 object and enable all 8 channels as
                                  'single-ended inputs.

Looks like Mode=1 only starts one channel.

kfurem

yeah, that's it--thanks

kfurem

should also be noted that it's a bit by bit enable, so if you enter a 2, will enable the first 2 input, easiest to do mode in binary