boards/samd5x: GCLK source for ADC must not exceed 100 MHz

RIOT-OS · Oct 22, 2024 · 419fc6e · 419fc6e
1 parent 33b1cac
commit 419fc6e
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Showing 4 changed files with 8 additions and 4 deletions.
diff --git a/boards/adafruit-grand-central-m4-express/include/periph_conf.h b/boards/adafruit-grand-central-m4-express/include/periph_conf.h
@@ -57,7 +57,8 @@ extern "C" {
  */
 
 /* ADC Default values */
-#define ADC_PRESCALER                       ADC_CTRLA_PRESCALER_DIV128
+#define ADC_GCLK_SRC                        SAM0_GCLK_PERIPH    /**< clock used for ADC */
+#define ADC_PRESCALER                       ADC_CTRLA_PRESCALER_DIV8
 
 #define ADC_NEG_INPUT                       ADC_INPUTCTRL_MUXNEG(0x18u)
 #define ADC_REF_DEFAULT                     ADC_REFCTRL_REFSEL_INTVCC1

diff --git a/boards/adafruit-itsybitsy-m4/include/periph_conf.h b/boards/adafruit-itsybitsy-m4/include/periph_conf.h
@@ -234,7 +234,8 @@ static const sam0_common_usb_config_t sam_usbdev_config[] = {
  */
 
 /* ADC Default values */
-#define ADC_PRESCALER                       ADC_CTRLA_PRESCALER_DIV128
+#define ADC_GCLK_SRC                        SAM0_GCLK_PERIPH    /**< clock used for ADC */
+#define ADC_PRESCALER                       ADC_CTRLA_PRESCALER_DIV8
 
 #define ADC_NEG_INPUT                       ADC_INPUTCTRL_MUXNEG(0x18u)
 #define ADC_REF_DEFAULT                     ADC_REFCTRL_REFSEL_INTVCC1

diff --git a/boards/adafruit-pybadge/include/periph_conf.h b/boards/adafruit-pybadge/include/periph_conf.h
@@ -265,7 +265,8 @@ static const sam0_common_usb_config_t sam_usbdev_config[] = {
  */
 
 /* ADC Default values */
-#define ADC_PRESCALER                       ADC_CTRLA_PRESCALER_DIV128
+#define ADC_GCLK_SRC                        SAM0_GCLK_PERIPH    /**< clock used for ADC */
+#define ADC_PRESCALER                       ADC_CTRLA_PRESCALER_DIV8
 
 #define ADC_NEG_INPUT                       ADC_INPUTCTRL_MUXNEG(0x18u)
 #define ADC_REF_DEFAULT                     ADC_REFCTRL_REFSEL_INTVCC1

diff --git a/boards/same54-xpro/include/periph_conf.h b/boards/same54-xpro/include/periph_conf.h
@@ -346,7 +346,8 @@ static const sam0_common_usb_config_t sam_usbdev_config[] = {
  */
 
 /* ADC Default values */
-#define ADC_PRESCALER                       ADC_CTRLA_PRESCALER_DIV128
+#define ADC_GCLK_SRC                        SAM0_GCLK_PERIPH    /**< clock used for ADC */
+#define ADC_PRESCALER                       ADC_CTRLA_PRESCALER_DIV8
 
 #define ADC_NEG_INPUT                       ADC_INPUTCTRL_MUXNEG(0x18u)
 #define ADC_REF_DEFAULT                     ADC_REFCTRL_REFSEL_INTVCC1