A/D conversion help

halides · Joined: 28 Oct 2006 Posts: 4 Location: india

Hi,

m using pic184550 uc, and cs4334ks d/a converter.

using the function
value = read_adc(ADC_START_AND_READ);

i send value to portB directly , on oscilloscope the output is showing but ambiguous.
can you tell me how to send each bit serialy to a single PIN .

Thanks

jma_1 · Joined: 08 Feb 2005 Posts: 147 Location: Wisconsin

Greetings,

I'm not sure I understand your question. The cs4334 ks is a two channel digital to analog (da)converter chip which receives data serially from a microprocessor. The read_dc(adc_start_and_read) sets up the analog to digital converter inside the pic microchip (read analog value at a micropressor pin). These are not related (one internal d/a measurement; one external serial write). Check out the datasheet for the cs4334 for setting up how to communicate with the chip (clock - internal or exteranl; two's complement data format, channel - L or R, etc).

Cheers,
JMA