display SPI now 10MHz; set PWM duty cycle to zero at stop to quiet output

Author: dhalbert

ports/raspberrypi/boards/adafruit_macropad_rp2040/board.c

@@ -69,7 +69,7 @@ void board_init(void) {
         &pin_GPIO24, // Command or data
         &pin_GPIO22, // Chip select
         &pin_GPIO23, // Reset
-        1000000, // Baudrate
+        10000000, // Baudrate
         0, // Polarity
         0); // Phase
 

ports/raspberrypi/common-hal/audiopwmio/PWMAudioOut.c

@@ -225,9 +225,11 @@ void common_hal_audiopwmio_pwmaudioout_stop(audiopwmio_pwmaudioout_obj_t *self)
     audio_dma_stop(&self->dma);
 
     // Set to quiescent level.
-    pwm_hw->slice[self->left_pwm.slice].cc = self->quiescent_value;
+    common_hal_pwmio_pwmout_set_duty_cycle(&self->left_pwm, self->quiescent_value);
+    pwmio_pwmout_set_top(&self->left_pwm, PWM_TOP);
     if (self->stereo) {
-        pwm_hw->slice[self->right_pwm.slice].cc = self->quiescent_value;
+        common_hal_pwmio_pwmout_set_duty_cycle(&self->right_pwm, self->quiescent_value);
+        pwmio_pwmout_set_top(&self->right_pwm, PWM_TOP);
     }
 }