boards: st: add dac node in dts file and update docs

-enable dac in nucleo_u031r8, stm32u083c_dk and nucleo_u083rc
- add dac as new supported interface in docs
- update yaml files

Signed-off-by: Fabrice DJIATSA <[email protected]>

Author: djiatsaf-st

boards/st/nucleo_u031r8/doc/index.rst

@@ -140,6 +140,8 @@ The Zephyr _nucleo_u031r8_ board configuration supports the following hardware f
 +-----------+------------+-------------------------------------+
 | NVIC      | on-chip    | nested vector interrupt controller  |
 +-----------+------------+-------------------------------------+
+| DAC       | on-chip    | DAC Controller                      |
++-----------+------------+-------------------------------------+
 | I2C       | on-chip    | i2c                                 |
 +-----------+------------+-------------------------------------+
 
@@ -160,6 +162,7 @@ For more details please refer to `STM32U031 User Manual`_.
 Default Zephyr Peripheral Mapping:
 ----------------------------------
 
+- DAC1_OUT1 : PA4
 - LD1 : PA5
 - UART_1_TX : PA9
 - UART_1_RX : PA10

boards/st/nucleo_u031r8/nucleo_u031r8.dts

@@ -82,6 +82,12 @@
 	apb1-prescaler = <1>;
 };
 
+&dac1 {
+	status = "okay";
+	pinctrl-0 = <&dac1_out1_pa4>;
+	pinctrl-names = "default";
+};
+
 &i2c1 {
 	pinctrl-0 = <&i2c1_scl_pb8 &i2c1_sda_pb9>;
 	pinctrl-names = "default";

boards/st/nucleo_u031r8/nucleo_u031r8.yaml

@@ -6,6 +6,7 @@ toolchain:
   - zephyr
 supported:
   - arduino_gpio
+  - dac
   - gpio
   - i2c
   - usart

boards/st/nucleo_u083rc/doc/index.rst

@@ -146,6 +146,8 @@ The Zephyr nucleo_u083rc board configuration supports the following hardware fea
 | UART      | on-chip    | serial port-polling;                |
 |           |            | serial port-interrupt               |
 +-----------+------------+-------------------------------------+
+| DAC       | on-chip    | DAC Controller                      |
++-----------+------------+-------------------------------------+
 | I2C       | on-chip    | i2c                                 |
 +-----------+------------+-------------------------------------+
 

boards/st/nucleo_u083rc/nucleo_u083rc.dts

@@ -82,6 +82,12 @@
 	apb1-prescaler = <1>;
 };
 
+&dac1 {
+	status = "okay";
+	pinctrl-0 = <&dac1_out1_pa4>;
+	pinctrl-names = "default";
+};
+
 &i2c1 {
 	pinctrl-0 = <&i2c1_scl_pb8 &i2c1_sda_pb9>;
 	pinctrl-names = "default";

boards/st/nucleo_u083rc/nucleo_u083rc.yaml

@@ -7,7 +7,10 @@ toolchain:
   - gnuarmemb
   - xtools
 supported:
+  - arduino_gpio
+  - dac
   - gpio
   - i2c
+  - usart
 ram: 40
 flash: 256

boards/st/stm32u083c_dk/doc/index.rst

@@ -159,6 +159,8 @@ The Zephyr stm32u083c_dk board configuration supports the following hardware fea
 | UART      | on-chip    | serial port-polling;                |
 |           |            | serial port-interrupt               |
 +-----------+------------+-------------------------------------+
+| DAC       | on-chip    | DAC Controller                      |
++-----------+------------+-------------------------------------+
 | I2C       | on-chip    | i2c                                 |
 +-----------+------------+-------------------------------------+
 

boards/st/stm32u083c_dk/stm32u083c_dk.dts

@@ -72,6 +72,12 @@
 	apb1-prescaler = <1>;
 };
 
+&dac1 {
+	status = "okay";
+	pinctrl-0 = <&dac1_out1_pa4>;
+	pinctrl-names = "default";
+};
+
 &i2c1 {
 	pinctrl-0 = <&i2c1_scl_pa9 &i2c1_sda_pa10>;
 	pinctrl-names = "default";

boards/st/stm32u083c_dk/stm32u083c_dk.yaml

@@ -7,7 +7,10 @@ toolchain:
   - gnuarmemb
   - xtools
 supported:
+  - arduino_gpio
+  - dac
   - gpio
   - i2c
+  - usart
 ram: 40
 flash: 256