cpu/stm32/adc_f4: add support for stm32f7

cpu/stm32/include/periph/f7/periph_cpu.h

@@ -32,6 +32,20 @@ extern "C" {
  */
 #define STM32_BOOTLOADER_ADDR   (0x1FF00000)
 
+/**
+ * @brief   Override the ADC resolution configuration
+ * @{
+ */
+#define HAVE_ADC_RES_T
+typedef enum {
+    ADC_RES_6BIT  = 0x03000000,     /**< ADC resolution: 6 bit */
+    ADC_RES_8BIT  = 0x02000000,     /**< ADC resolution: 8 bit */
+    ADC_RES_10BIT = 0x01000000,     /**< ADC resolution: 10 bit */
+    ADC_RES_12BIT = 0x00000000,     /**< ADC resolution: 12 bit */
+    ADC_RES_14BIT = 1,              /**< ADC resolution: 14 bit (not supported) */
+    ADC_RES_16BIT = 2               /**< ADC resolution: 16 bit (not supported)*/
+} adc_res_t;
+/** @} */
 #endif /* ndef DOXYGEN */
 
 #ifdef __cplusplus

cpu/stm32/periph/Makefile

@@ -11,7 +11,11 @@ endif
 
 # Select the specific implementation for `periph_adc`
 ifneq (,$(filter periph_adc,$(USEMODULE)))
-  SRC += adc_$(CPU_FAM).c
+  ifneq (,$(filter $(CPU_FAM),f4 f7))
+    SRC += adc_f4_f7.c
+  else
+    SRC += adc_$(CPU_FAM).c
+  endif
 endif
 
 # Select the correct implementation for `periph_gpio`