[stm32l475][RTduino] support tone timer

bsp/stm32/stm32l475-atk-pandora/applications/arduino_pinout/pins_arduino.h

@@ -66,6 +66,8 @@
 /* Serial2 - PA2-TX  PA3-RX */
 #define RTDUINO_SERIAL2_DEVICE_NAME     "uart2"
 
+#define RTDUINO_TONE_HWTIMER_DEVICE_NAME "timer7"
+
 /* I2C */
 #if defined(BSP_USING_ARDUINO_AHT10)
 #define RTDUINO_DEFAULT_IIC_BUS_NAME    "i2c4" /* i2c4 - AHT10 (On Board) */

bsp/stm32/stm32l475-atk-pandora/board/Kconfig

@@ -24,6 +24,8 @@ menu "Onboard Peripheral Drivers"
         select PKG_USING_RTDUINO
         select BSP_USING_STLINK_TO_USART
         select BSP_USING_GPIO
+        select BSP_USING_TIM
+        select BSP_USING_TIM7
         select BSP_USING_PWM
         select BSP_USING_PWM1
         select BSP_USING_PWM1_CH1