STM32: Fix HSE/HSI clk source detection

When using online compiler (Keil) SystemInit (and systick stuff) is call
before RW  data is initialized, so static and global variables contains
garbage. AHBPrescTable was one of these.

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/TARGET_DISCO_F051R8/system_stm32f0xx.c

@@ -209,6 +209,7 @@ void SystemInit(void)
   RCC->CIR = 0x00000000;
 
   /* Configure the Cube driver */
+  SystemCoreClock = 8000000; // At this stage the HSI is used as system clock
   HAL_Init();
 
   /* Configure the System clock source, PLL Multiplier and Divider factors,

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/TARGET_NUCLEO_F030R8/system_stm32f0xx.c

@@ -226,6 +226,7 @@ void SystemInit(void)
   RCC->CIR = 0x00000000;
 
   /* Configure the Cube driver */
+  SystemCoreClock = 8000000; // At this stage the HSI is used as system clock
   HAL_Init();
 
   /* Configure the System clock source, PLL Multiplier and Divider factors,

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F1/TARGET_DISCO_F100RB/system_stm32f1xx.c

@@ -159,7 +159,7 @@
   uint32_t SystemCoreClock         = 72000000;        /*!< System Clock Frequency (Core Clock) */
 #endif
 
-__IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
 /**
   * @}
   */

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F1/TARGET_NUCLEO_F103RB/system_stm32f1xx.c

@@ -161,7 +161,7 @@
   uint32_t SystemCoreClock         = 72000000;        /*!< System Clock Frequency (Core Clock) */
 #endif
 
-__IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
 /**
   * @}
   */

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3XX/stm32f30x_rcc.c

@@ -141,8 +141,8 @@
 
 /* Private macro -------------------------------------------------------------*/
 /* Private variables ---------------------------------------------------------*/
-static __I uint8_t APBAHBPrescTable[16] = {0, 0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t APBAHBPrescTable[16] = {0, 0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 6, 7, 8, 9};
-static __I uint16_t ADCPrescTable[16] = {1, 2, 4, 6, 8, 10, 12, 16, 32, 64, 128, 256, 0, 0, 0, 0 };
+const uint16_t ADCPrescTable[16] = {1, 2, 4, 6, 8, 10, 12, 16, 32, 64, 128, 256, 0, 0, 0, 0 };
 
 /* Private function prototypes -----------------------------------------------*/
 /* Private functions ---------------------------------------------------------*/

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3XX/system_stm32f30x.c

@@ -143,7 +143,7 @@
 
 uint32_t SystemCoreClock = 64000000; /* Default with HSI. Will be updated if HSE is used */
 
-__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_DISCO_F429ZI/system_stm32f4xx.c

@@ -155,7 +155,7 @@
                variable is updated automatically.
   */
   uint32_t SystemCoreClock = 168000000;
-  __IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_MTS_DRAGONFLY_F411RE/system_stm32f4xx.c

@@ -158,7 +158,7 @@
                variable is updated automatically.
   */
 uint32_t SystemCoreClock = 16000000;
-__IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_MTS_MDOT_F411RE/system_stm32f4xx.c

@@ -163,7 +163,7 @@
                variable is updated automatically.
   */
 uint32_t SystemCoreClock = 16000000;
-__IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_NUCLEO_F411RE/system_stm32f4xx.c

@@ -157,7 +157,7 @@
                variable is updated automatically.
   */
 uint32_t SystemCoreClock = 16000000;
-__IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/system_stm32f4xx.c

@@ -157,7 +157,7 @@
                variable is updated automatically.
   */
 uint32_t SystemCoreClock = 16000000;
-__IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_rcc.h

@@ -190,7 +190,7 @@ typedef struct
 
 
 #define DBP_TIMEOUT_VALUE          ((uint32_t)100)
-#define LSE_TIMEOUT_VALUE          ((uint32_t)600)
+#define LSE_TIMEOUT_VALUE          ((uint32_t)5000)
 /**
   * @}
   */

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4XX/system_stm32f4xx.c

@@ -184,7 +184,7 @@
 
   uint32_t SystemCoreClock = 168000000;
 
-  __I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/system_stm32l0xx.c

@@ -145,9 +145,9 @@
                is no need to call the 2 first functions listed above, since SystemCoreClock
                variable is updated automatically.
   */
-  uint32_t SystemCoreClock = 32000000;
+uint32_t SystemCoreClock = 32000000;
-__IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
-__IO const uint8_t PLLMulTable[9] = {3, 4, 6, 8, 12, 16, 24, 32, 48};
+const uint8_t PLLMulTable[9] = {3, 4, 6, 8, 12, 16, 24, 32, 48};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_NUCLEO_L053R8/system_stm32l0xx.c

@@ -145,9 +145,9 @@
                is no need to call the 2 first functions listed above, since SystemCoreClock
                variable is updated automatically.
   */
-  uint32_t SystemCoreClock = 32000000;
+uint32_t SystemCoreClock = 32000000;
-__IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
-__IO const uint8_t PLLMulTable[9] = {3, 4, 6, 8, 12, 16, 24, 32, 48};
+const uint8_t PLLMulTable[9] = {3, 4, 6, 8, 12, 16, 24, 32, 48};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_NUCLEO_L073RZ/system_stm32l0xx.c

@@ -145,9 +145,9 @@
                is no need to call the 2 first functions listed above, since SystemCoreClock
                variable is updated automatically.
   */
-  uint32_t SystemCoreClock = 32000000;
+uint32_t SystemCoreClock = 32000000;
-__IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
-__IO const uint8_t PLLMulTable[9] = {3, 4, 6, 8, 12, 16, 24, 32, 48};
+const uint8_t PLLMulTable[9] = {3, 4, 6, 8, 12, 16, 24, 32, 48};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_conf.h

@@ -123,7 +123,7 @@
 
    
 #if !defined  (LSE_STARTUP_TIMEOUT)
-  #define LSE_STARTUP_TIMEOUT    ((uint32_t)500)   /*!< Time out for LSE start up, in ms */
+  #define LSE_STARTUP_TIMEOUT    ((uint32_t)5000)   /*!< Time out for LSE start up, in ms */
 #endif /* HSE_STARTUP_TIMEOUT */
 
    

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_rcc.c

@@ -118,8 +118,8 @@
 /** @defgroup RCC_Private_Vatiables RCC Private Data
   * @{
   */ 
-static __IO const uint8_t PLLMulTable[9] = {3, 4, 6, 8, 12, 16, 24, 32, 48};
+const uint8_t PLLMulTable[9] = {3, 4, 6, 8, 12, 16, 24, 32, 48};
-static __IO const uint8_t APBAHBPrescTable[16] = {0, 0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t APBAHBPrescTable[16] = {0, 0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 6, 7, 8, 9};
 
 /**
   * @}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_conf.h

@@ -122,7 +122,7 @@
 
    
 #if !defined  (LSE_STARTUP_TIMEOUT)
-  #define LSE_STARTUP_TIMEOUT    ((uint32_t)500)   /*!< Time out for LSE start up, in ms */
+  #define LSE_STARTUP_TIMEOUT    ((uint32_t)5000)   /*!< Time out for LSE start up, in ms */
 #endif /* HSE_STARTUP_TIMEOUT */