Using MCU_ADC as general purpose inputs

John Weber

Part Number: TDA4VM
Other Parts Discussed in Thread: SYSCONFIG,

Can the MCU_ADC0 and MCU_ADC1 be used as general purpose inputs?

In an older TDA4VM pinmux spreadsheet (available under NDA), these are identified as pinmuxed with WKUP_GPIO0_68 through WKUP_GPIO0_83. However, this functionality is not exposed in the sysconfig tool and does not appear to be in the datasheet.

Is this a case of the support for this being defeatured or not implemented?

Thanks!

over 3 years ago

+1 Kevin S over 3 years ago

TI__Mastermind 39710 points

Hi,

After discussing with a colleague, my understanding is that these WKUP_GPIO signals are sourced through the ADC module. Thus, the pins would need to be set as ADC, and then the ADC would need to be configured to enable them as GPI signals.

The following snippets from the TRM may be useful. Let us know if this doesn't answer your question; thanks!

Regards,
Kevin