Open dpslwk opened 10 years ago
Piezo sounder has two possible uses. First is simple notification beeps that might be triggered by an app or incoming radio notification.
Second is playback of simple tunes
Piezo is on a DAC pin which we suspect might not work, so either use software PWM or redirect the hardware PWMH3 pin from LED1_BLUE
Should investigate rapid DAC changes using DMA/PDC xfer to emulate PWM
Piezo sounder has two possible uses. First is simple notification beeps that might be triggered by an app or incoming radio notification.
Second is playback of simple tunes
Piezo is on a DAC pin which we suspect might not work, so either use software PWM or redirect the hardware PWMH3 pin from LED1_BLUE
Should investigate rapid DAC changes using DMA/PDC xfer to emulate PWM