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

-enable adc in nucleo_u031r8, stm32u083c_dk and nucleo_u083rc - add adc as new supported interface in docs - update yaml files Signed-off-by: Fabrice DJIATSA <fabrice.djiatsa-ext@st.com>
zephyrproject-rtos · Sep 27, 2024 · 293eb22 · 293eb22
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diff --git a/boards/st/nucleo_u031r8/doc/index.rst b/boards/st/nucleo_u031r8/doc/index.rst
@@ -140,13 +140,16 @@ The Zephyr _nucleo_u031r8_ board configuration supports the following hardware f
 +-----------+------------+-------------------------------------+
 | NVIC | on-chip | nested vector interrupt controller |
 +-----------+------------+-------------------------------------+
+| ADC | on-chip | adc |
++-----------+------------+-------------------------------------+
 | DAC | on-chip | DAC Controller |
 +-----------+------------+-------------------------------------+
 | I2C | on-chip | i2c |
 +-----------+------------+-------------------------------------+
 | PWM | on-chip | pwm |
 +-----------+------------+-------------------------------------+
 
+
 Other hardware features are not yet supported on this Zephyr port.
 
 The default configuration can be found in the defconfig file:

diff --git a/boards/st/nucleo_u031r8/nucleo_u031r8.dts b/boards/st/nucleo_u031r8/nucleo_u031r8.dts
@@ -102,6 +102,15 @@
  clock-frequency = <I2C_BITRATE_FAST>;
 };
 
+&adc1 {
+ pinctrl-0 = <&adc1_in0_pc0 &adc1_in1_pc1>;
+ pinctrl-names = "default";
+ st,adc-clock-source = <SYNC>;
+ st,adc-prescaler = <4>;
+ status = "okay";
+ vref-mv = <3300>;
+};
+
 &timers1 {
  st,prescaler = <10000>;
  status = "okay";

diff --git a/boards/st/nucleo_u031r8/nucleo_u031r8.yaml b/boards/st/nucleo_u031r8/nucleo_u031r8.yaml
@@ -6,6 +6,7 @@ toolchain:
  - zephyr
 supported:
  - arduino_gpio
+ - adc
  - dac
  - gpio
  - i2c

diff --git a/boards/st/nucleo_u083rc/doc/index.rst b/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 |
 +-----------+------------+-------------------------------------+
+| ADC | on-chip | adc |
++-----------+------------+-------------------------------------+
 | DAC | on-chip | DAC Controller |
 +-----------+------------+-------------------------------------+
 | I2C | on-chip | i2c |

diff --git a/boards/st/nucleo_u083rc/nucleo_u083rc.dts b/boards/st/nucleo_u083rc/nucleo_u083rc.dts
@@ -102,6 +102,17 @@
  clock-frequency = <I2C_BITRATE_FAST>;
 };
 
+&adc1 {
+ pinctrl-0 = <&adc1_in0_pc0 &adc1_in1_pc1>;
+ pinctrl-names = "default";
+ st,adc-clock-source = <ASYNC>;
+ clocks = <&rcc STM32_CLOCK_BUS_APB1_2 0x00100000>,
+ <&rcc STM32_SRC_HSI ADC_SEL(2)>;
+ st,adc-prescaler = <4>;
+ status = "okay";
+ vref-mv = <3300>;
+};
+
 &timers1 {
  st,prescaler = <10000>;
  status = "okay";

diff --git a/boards/st/nucleo_u083rc/nucleo_u083rc.yaml b/boards/st/nucleo_u083rc/nucleo_u083rc.yaml
@@ -7,6 +7,7 @@ toolchain:
  - gnuarmemb
  - xtools
 supported:
+ - adc
  - arduino_gpio
  - dac
  - gpio

diff --git a/boards/st/stm32u083c_dk/doc/index.rst b/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 |
 +-----------+------------+-------------------------------------+
+| ADC | on-chip | adc |
++-----------+------------+-------------------------------------+
 | DAC | on-chip | DAC Controller |
 +-----------+------------+-------------------------------------+
 | I2C | on-chip | i2c |

diff --git a/boards/st/stm32u083c_dk/stm32u083c_dk.dts b/boards/st/stm32u083c_dk/stm32u083c_dk.dts
@@ -72,6 +72,17 @@
  apb1-prescaler = <1>;
 };
 
+&adc1 {
+ pinctrl-0 = <&adc1_in0_pc0 &adc1_in1_pc1>;
+ pinctrl-names = "default";
+ st,adc-clock-source = <ASYNC>;
+ clocks = <&rcc STM32_CLOCK_BUS_APB1_2 0x00100000>,
+ <&rcc STM32_SRC_HSI ADC_SEL(2)>;
+ st,adc-prescaler = <4>;
+ status = "okay";
+ vref-mv = <3300>;
+};
+
 &dac1 {
  status = "okay";
  pinctrl-0 = <&dac1_out1_pa4>;

diff --git a/boards/st/stm32u083c_dk/stm32u083c_dk.yaml b/boards/st/stm32u083c_dk/stm32u083c_dk.yaml
@@ -7,6 +7,7 @@ toolchain:
  - gnuarmemb
  - xtools
 supported:
+ - adc
  - arduino_gpio
  - dac
  - gpio