Forums

803 - using ADC in loop mode - accessing data

Started by Steve & Elena Yepez October 3, 2003

I'm using the 803 dsp and would like to configure the adc to sample
data in loop sequential mode for the hightest through put.

However, the manual on the adc claims that you can not use
the "endofscan interrupt" to fetch the data at the end of each cycle.

well then how do I go about to do this?



When you set up ADC in loop mode, ADC will endlessly
sample the analog inputs till you set stop bit in
ADCR1. So in loop mode, ADC doesn't issue end of scan
interrupt. But the data in result registers can be
read at any time. If you want to read the realtime ADC
result, you can set a timer to have an interrupt
period sama as ADC scan rate but you need regularly
synch timer with ADC.

C.W --- Steve & Elena Yepez <> wrote:
>
> I'm using the 803 dsp and would like to configure
> the adc to sample
> data in loop sequential mode for the hightest
> through put.
>
> However, the manual on the adc claims that you can
> not use
> the "endofscan interrupt" to fetch the data at the
> end of each cycle.
>
> well then how do I go about to do this?


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