fixes for pixracer

gistfile1.txt

diff --git a/src/main/config/config.c b/src/main/config/config.c
index 6117f92..b8cc59d 100755
--- a/src/main/config/config.c
+++ b/src/main/config/config.c
@@ -704,7 +704,7 @@ void createDefaultConfig(master_t *config)
     }
 #endif
 
-   
+
     // copy first profile into remaining profile
     for (int i = 1; i < MAX_PROFILE_COUNT; i++) {
         memcpy(&config->profile[i], &config->profile[0], sizeof(profile_t));
@@ -1003,7 +1003,7 @@ void writeEEPROM(void)
 #endif
         for (wordOffset = 0; wordOffset < sizeof(master_t); wordOffset += 4) {
             if (wordOffset % FLASH_PAGE_SIZE == 0) {
-#if defined(STM32F40_41xxx)
+#if defined(STM32F40_41xxx) || defined(STM32F427_437xx)
                 status = FLASH_EraseSector(FLASH_Sector_8, VoltageRange_3); //0x08080000 to 0x080A0000
 #elif defined (STM32F411xE)
                 status = FLASH_EraseSector(FLASH_Sector_7, VoltageRange_3); //0x08060000 to 0x08080000
diff --git a/src/main/target/PIXRACERF4/target.c b/src/main/target/PIXRACERF4/target.c
index 5db4a86..c82897b 100644
--- a/src/main/target/PIXRACERF4/target.c
+++ b/src/main/target/PIXRACERF4/target.c
@@ -68,10 +68,10 @@ const uint16_t airPWM[] = {
 
 const timerHardware_t timerHardware[USABLE_TIMER_CHANNEL_COUNT] = {
 	{ TIM3, IO_TAG(PB0),  TIM_Channel_3, TIM3_IRQn, 0, IOCFG_AF_PP_PD, GPIO_AF_TIM3 },  // PPM shared uart6 pc7
-	{ TIM1, IO_TAG(PE14), TIM_Channel_4, TIM1_IRQn, 1, IOCFG_AF_PP_PD, GPIO_AF_TIM1 },  // S1_OUT
-	{ TIM1, IO_TAG(PE13), TIM_Channel_3, TIM1_IRQn, 1, IOCFG_AF_PP_PD, GPIO_AF_TIM1 },  // S2_OUT
-	{ TIM1, IO_TAG(PE11), TIM_Channel_2, TIM1_IRQn, 1, IOCFG_AF_PP_PD, GPIO_AF_TIM1 },  // S3_OUT
-	{ TIM1, IO_TAG(PE9),  TIM_Channel_1, TIM1_IRQn, 1, IOCFG_AF_PP_PD, GPIO_AF_TIM1 },  // S4_OUT
+	{ TIM1, IO_TAG(PE14), TIM_Channel_4, TIM1_CC_IRQn, 1, IOCFG_AF_PP_PD, GPIO_AF_TIM1 },  // S1_OUT
+	{ TIM1, IO_TAG(PE13), TIM_Channel_3, TIM1_CC_IRQn, 1, IOCFG_AF_PP_PD, GPIO_AF_TIM1 },  // S2_OUT
+	{ TIM1, IO_TAG(PE11), TIM_Channel_2, TIM1_CC_IRQn, 1, IOCFG_AF_PP_PD, GPIO_AF_TIM1 },  // S3_OUT
+	{ TIM1, IO_TAG(PE9),  TIM_Channel_1, TIM1_CC_IRQn, 1, IOCFG_AF_PP_PD, GPIO_AF_TIM1 },  // S4_OUT
 	{ TIM4, IO_TAG(PD13), TIM_Channel_2, TIM4_IRQn, 1, IOCFG_AF_PP_PD, GPIO_AF_TIM4 },  // S5_OUT
 	{ TIM4, IO_TAG(PD14), TIM_Channel_3, TIM4_IRQn, 1, IOCFG_AF_PP_PD, GPIO_AF_TIM4 },  // S6_OUT
 };
diff --git a/src/main/target/PIXRACERF4/target.h b/src/main/target/PIXRACERF4/target.h
index 635ea07..00a4d9d 100644
--- a/src/main/target/PIXRACERF4/target.h
+++ b/src/main/target/PIXRACERF4/target.h
@@ -160,5 +160,6 @@
 #define TARGET_IO_PORTB         0xffff
 #define TARGET_IO_PORTC         0xffff
 #define TARGET_IO_PORTD         0xffff
+#define TARGET_IO_PORTE         0xffff
 
-#define USED_TIMERS             ( TIM_N(1) | TIM_N(3) | TIM_N(4))
\ No newline at end of file
+#define USED_TIMERS             ( TIM_N(1) | TIM_N(3) | TIM_N(4))
diff --git a/src/main/target/PIXRACERF4/target.mk b/src/main/target/PIXRACERF4/target.mk
index b0f566d..66bb47a 100644
--- a/src/main/target/PIXRACERF4/target.mk
+++ b/src/main/target/PIXRACERF4/target.mk
@@ -3,6 +3,5 @@ FEATURES        += SDCARD VCP
 
 TARGET_SRC = \
             drivers/accgyro_spi_mpu9250.c \
-            drivers/accgyro_mpu9250.c \
             drivers/barometer_ms5611.c \
-
+            drivers/compass_ak8963.c