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disable dac before stop mode #2419

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disable dac before stop mode #2419

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15bc4e4
disable dac before stop mode
probablyanasian Jul 23, 2026
7c2b6d3
retry test
probablyanasian Jul 23, 2026
eb21dab
use sound.h function
probablyanasian Jul 23, 2026
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3 changes: 3 additions & 0 deletions board/sys/power_saving.h
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,9 @@ static void enter_stop_mode(void) {
ADC2->CR &= ~(ADC_CR_ADEN);
ADC2->CR |= ADC_CR_DEEPPWD;

// disable DACs
sound_stop_dac();

// disable HSI48: 48 MHz USB clock
register_clear_bits(&(RCC->CR), RCC_CR_HSI48ON);
// disable SRAM retention in stop mode
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