Merge pull request #3739 from jeromecoutant/PR_F7_HSE

STM32F7 : remove multiple HSE_VALUE define value

Author: sg-

targets/TARGET_STM/TARGET_STM32F7/TARGET_STM32F746xG/TARGET_DISCO_F746NG/system_stm32f7xx.c

@@ -83,7 +83,9 @@
 
 HAL_StatusTypeDef HAL_Init(void);
 
-#define HSE_VALUE    ((uint32_t)25000000) /*!< Default value of the External oscillator in Hz */
+#if !defined  (HSE_VALUE)
+  #define HSE_VALUE    ((uint32_t)25000000) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
 
 #if !defined  (HSI_VALUE)
   #define HSI_VALUE    ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/

targets/TARGET_STM/TARGET_STM32F7/TARGET_STM32F769xI/TARGET_DISCO_F769NI/system_stm32f7xx.c

@@ -83,7 +83,9 @@
 
 HAL_StatusTypeDef HAL_Init(void);
 
-#define HSE_VALUE    ((uint32_t)25000000) /*!< Default value of the External oscillator in Hz */
+#if !defined  (HSE_VALUE)
+  #define HSE_VALUE    ((uint32_t)25000000) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
 
 #if !defined  (HSI_VALUE)
   #define HSI_VALUE    ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/

targets/TARGET_STM/TARGET_STM32F7/device/stm32f7xx_hal_conf.h

@@ -103,9 +103,12 @@
   *        This value is used by the RCC HAL module to compute the system frequency
   *        (when HSE is used as system clock source, directly or through the PLL).
   */
-#if !defined  (HSE_VALUE)
-  #define HSE_VALUE    8000000U /*!< Value of the External oscillator in Hz */
-#endif /* HSE_VALUE */
+//#if !defined  (HSE_VALUE)
+#if defined(TARGET_DISCO_F746NG) || defined(TARGET_DISCO_F769NI)
+  #define HSE_VALUE    25000000U /*!< Value of the External oscillator in Hz */
+#else
+  #define HSE_VALUE    8000000U /*!< Default value of the External oscillator in Hz */
+#endif
 
 #if !defined  (HSE_STARTUP_TIMEOUT)
   #define HSE_STARTUP_TIMEOUT    200U   /*!< Time out for HSE start up, in ms */