AMC7823 response to convert when still in conversion (direct mode)

Robert Curtis

Intellectual 430 points

Other Parts Discussed in Thread: AMC7823

When using a AMC7823 in direct mode, is it possiible to retrigger it when it is already in an ADC converstion?

Thanks for any help.

over 11 years ago

0 Matthew Sauceda over 11 years ago

TI__Genius 11750 points

Hi Robert,

Thanks for the post. I'm currently looking into this, and will update this post as I gather information.

Best Regards,

Matt

0 Matthew Sauceda over 11 years ago in reply to Matthew Sauceda

TI__Genius 11750 points

Robert,

I've talked with design, and according to their analysis, any additional triggers executed during conversions will be ignored. To clarify, these triggers will be ignored as long as they meet the below conditions.

Both cases are for Direct Mode:

1) External Trigger & ECNVT = 1, CMODE =0/1

Any additional external triggers that come before ADC data ready will be ignored.

2) Internal Trigger & ECNVT =0, CMODE=0

If the ADC control register write does not change the polarity of the CMODE bit, then any additional internal triggers that come before ADC data ready will be ignored.

0 Robert Curtis over 11 years ago in reply to Matthew Sauceda

Intellectual 430 points

Thanks for th answer.

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AMC7823 response to convert when still in conversion (direct mode)