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boards/same54-xpro: default to internal voltage reference for DAC

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Using the external reference produces no output when no voltage is
connected, which makes for a confusing non-functional DAC on the eval
board.
This commit is contained in:
Benjamin Valentin 2025-06-10 19:35:11 +02:00
parent d86b75a4a6
commit 22cdbdeaa3
1 changed files with 3 additions and 3 deletions
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6
boards/same54-xpro/include/periph_conf.h
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@ -377,10 +377,10 @@ static const adc_conf_chan_t adc_channels[] = {
*/
/* Must not exceed 12 MHz */
#define DAC_CLOCK SAM0_GCLK_TIMER
/* Use external reference voltage on PA03 */
/* (You have to manually connect PA03 with Vcc) */
#ifndef DAC_VREF
/* Internal reference only gives 1V */
#define DAC_VREF DAC_CTRLB_REFSEL_VREFPU
#define DAC_VREF DAC_CTRLB_REFSEL_INTREF
#endif
/** @} */
/**