SPRacingF3 - Add sonar support.

Makefile

@@ -509,6 +509,7 @@ SPRACINGF3_SRC	 = \
 		   drivers/compass_hmc5883l.c \
 		   drivers/display_ug2864hsweg01.h \
 		   drivers/flash_m25p16.c \
+		   drivers/sonar_hcsr04.c \
 		   io/flashfs.c \
 		   $(HIGHEND_SRC) \
 		   $(COMMON_SRC)

src/main/config/config.c

@@ -758,6 +758,12 @@ void validateAndFixConfig(void)
     }
 #endif
 
+#if defined(SPRACINGF3) && defined(SONAR)
+    if (feature(FEATURE_RX_PARALLEL_PWM) && feature(FEATURE_SONAR) ) {
+        featureClear(FEATURE_SONAR);
+    }
+#endif
+
     useRxConfig(&masterConfig.rxConfig);
 
     serialConfig_t *serialConfig = &masterConfig.serialConfig;

src/main/sensors/sonar.c

@@ -69,6 +69,15 @@ void sonarInit(void)
         .exti_irqn = EXTI1_IRQn
     };
     hcsr04_init(&sonarHardware);
+#elif defined(SPRACINGF3)
+    static const sonarHardware_t const sonarHardware = {
+        .trigger_pin = Pin_0,   // RC_CH7 (PB0) - only 3.3v ( add a 1K Ohms resistor )
+        .echo_pin = Pin_1,      // RC_CH8 (PB1) - only 3.3v ( add a 1K Ohms resistor )
+        .exti_line = EXTI_Line1,
+        .exti_pin_source = EXTI_PinSource1,
+        .exti_irqn = EXTI1_IRQn
+    };
+    hcsr04_init(&sonarHardware);
 #else
 #error Sonar not defined for target
 #endif

src/main/target/SPRACINGF3/target.h

@@ -48,6 +48,7 @@
 #define USE_FLASHFS
 #define USE_FLASH_M25P16
 
+#define SONAR
 #define BEEPER
 #define LED0