From 356a1992053fbbbbf3e34d88ca9c3f919b16b44b Mon Sep 17 00:00:00 2001
From: hugues <hlarrive@laas.fr>
Date: Sun, 6 Sep 2020 19:31:37 +0200
Subject: [PATCH] boards/nucleo-f303ze: add ADC feature

---
 boards/nucleo-f303ze/Kconfig               |  1 +
 boards/nucleo-f303ze/Makefile.features     |  1 +
 boards/nucleo-f303ze/include/periph_conf.h | 22 ++++++++++++++++++++++
 3 files changed, 24 insertions(+)

diff --git a/boards/nucleo-f303ze/Kconfig b/boards/nucleo-f303ze/Kconfig
index 4f29eedc06..a8a6ff6b85 100644
--- a/boards/nucleo-f303ze/Kconfig
+++ b/boards/nucleo-f303ze/Kconfig
@@ -15,6 +15,7 @@ config BOARD_NUCLEO_F303ZE
     select CPU_MODEL_STM32F303ZE
 
     # Put defined MCU peripherals here (in alphabetical order)
+    select HAS_PERIPH_ADC
     select HAS_PERIPH_PWM
     select HAS_PERIPH_RTC
     select HAS_PERIPH_SPI
diff --git a/boards/nucleo-f303ze/Makefile.features b/boards/nucleo-f303ze/Makefile.features
index 698cb6adcd..87a9ea6c2b 100644
--- a/boards/nucleo-f303ze/Makefile.features
+++ b/boards/nucleo-f303ze/Makefile.features
@@ -2,6 +2,7 @@ CPU = stm32
 CPU_MODEL = stm32f303ze
 
 # Put defined MCU peripherals here (in alphabetical order)
+FEATURES_PROVIDED += periph_adc
 FEATURES_PROVIDED += periph_pwm
 FEATURES_PROVIDED += periph_rtc
 FEATURES_PROVIDED += periph_spi
diff --git a/boards/nucleo-f303ze/include/periph_conf.h b/boards/nucleo-f303ze/include/periph_conf.h
index fe85132044..26a145a62a 100644
--- a/boards/nucleo-f303ze/include/periph_conf.h
+++ b/boards/nucleo-f303ze/include/periph_conf.h
@@ -37,6 +37,28 @@
 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-A5
+ *
+ * @{
+ */
+static const adc_conf_t adc_config[] = {
+    { .pin = GPIO_PIN(PORT_A,  3), .dev = 0, .chan =  4 }, /* ADC1_IN4,  fast */
+    { .pin = GPIO_PIN(PORT_C,  0), .dev = 1, .chan =  6 }, /* ADC12_IN6, slow */
+    { .pin = GPIO_PIN(PORT_C,  3), .dev = 1, .chan =  9 }, /* ADC12_IN9, slow */
+    { .pin = GPIO_PIN(PORT_D, 11), .dev = 2, .chan =  8 }, /* ADC34_IN8, slow */
+    { .pin = GPIO_PIN(PORT_D, 12), .dev = 3, .chan =  9 }, /* ADC34_IN9, slow */
+    { .pin = GPIO_PIN(PORT_D, 13), .dev = 3, .chan = 10 }, /* ADC34_IN10, slo */
+};
+
+#define ADC_NUMOF           ARRAY_SIZE(adc_config)
+/** @} */
+
 /**
  * @name    UART configuration
  * @{