From f03a9f603c5b3540ba04518a25d6daac1d6b2636 Mon Sep 17 00:00:00 2001
From: hugues <hlarrive@laas.fr>
Date: Sun, 6 Sep 2020 19:25:55 +0200
Subject: [PATCH] boards/nucleo-f303k8: add ADC feature

---
 boards/nucleo-f303k8/Kconfig               |  1 +
 boards/nucleo-f303k8/Makefile.features     |  1 +
 boards/nucleo-f303k8/include/periph_conf.h | 21 +++++++++++++++++++++
 3 files changed, 23 insertions(+)

diff --git a/boards/nucleo-f303k8/Kconfig b/boards/nucleo-f303k8/Kconfig
index fbaa248d1b..65f3af3f8b 100644
--- a/boards/nucleo-f303k8/Kconfig
+++ b/boards/nucleo-f303k8/Kconfig
@@ -15,6 +15,7 @@ config BOARD_NUCLEO_F303K8
     select CPU_MODEL_STM32F303K8
 
     # Put defined MCU peripherals here (in alphabetical order)
+    select HAS_PERIPH_ADC
     select HAS_PERIPH_DMA
     select HAS_PERIPH_PWM
     select HAS_PERIPH_RTC
diff --git a/boards/nucleo-f303k8/Makefile.features b/boards/nucleo-f303k8/Makefile.features
index 69a32f11c7..62da69a987 100644
--- a/boards/nucleo-f303k8/Makefile.features
+++ b/boards/nucleo-f303k8/Makefile.features
@@ -2,6 +2,7 @@ CPU = stm32
 CPU_MODEL = stm32f303k8
 
 # Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_adc
 FEATURES_PROVIDED += periph_dma
 FEATURES_PROVIDED += periph_pwm
 FEATURES_PROVIDED += periph_rtc
diff --git a/boards/nucleo-f303k8/include/periph_conf.h b/boards/nucleo-f303k8/include/periph_conf.h
index cebd2e03a0..c170c01ced 100644
--- a/boards/nucleo-f303k8/include/periph_conf.h
+++ b/boards/nucleo-f303k8/include/periph_conf.h
@@ -34,6 +34,27 @@
 extern "C" {
 #endif
 
+/**
+ * @name    ADC configuration
+ *
+ * Note that we do not configure all ADC channels,
+ * and not in the STM32F303 order.  Instead, we
+ * just define 6 ADC channels, for the Nucleo
+ * Arduino header pins A0-A3 and A6
+ *
+ * @{
+ */
+static const adc_conf_t adc_config[] = {
+    { .pin = GPIO_PIN(PORT_A, 0), .dev = 0, .chan = 1 }, /* ADC1_IN1, fast */
+    { .pin = GPIO_PIN(PORT_A, 1), .dev = 0, .chan = 2 }, /* ADC1_IN2, fast */
+    { .pin = GPIO_PIN(PORT_A, 3), .dev = 0, .chan = 4 }, /* ADC1_IN4, fast */
+    { .pin = GPIO_PIN(PORT_A, 4), .dev = 1, .chan = 1 }, /* ADC2_IN1, fast */
+    { .pin = GPIO_PIN(PORT_A, 7), .dev = 1, .chan = 4 }, /* ADC2_IN4, fast */
+};
+
+#define ADC_NUMOF           ARRAY_SIZE(adc_config)
+/** @} */
+
 /**
  * @name    DMA streams configuration
  * @{