StartKIT ADC sample

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gkrusi
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Joined: Mon May 26, 2014 10:32 pm

StartKIT ADC sample

Postby gkrusi » Tue Jul 01, 2014 1:51 pm

I can't really find what ADC_SAMP pin in hardware datasheet of StartKIT is? It's not in any other datasheet or so. Is it internal? I'd like to connect it to some other port like X0D39 instead of X0D00. Is it possible to make a change like this? Now it's arguing with SPI pins...
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segher
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Joined: Sun Jul 11, 2010 1:31 am

Postby segher » Thu Jul 03, 2014 10:55 am

This is ball V13, which is port 1I on the debug tile. You
trigger it externally or by software (running on the debug
tile). See e.g. the U16 datasheet.
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infiniteimprobability
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Postby infiniteimprobability » Thu Jul 03, 2014 5:22 pm

On the startkit PCB, the ADC sample pin is connected to XD0 on the user tile, also know as PORT_1A..

I haven't checked the gerbers of the startkit to see if you could cut that track. Failing that you could ensure PORT_1A was high impedance (make it an input) and then connect it to X0D39. You'd lose use of PORT_1A though which I suspect isn't what you are looking for..

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