Added u-blox C029 target

Author: andreas.larsson

hal/targets.json

@@ -1197,13 +1197,13 @@
     "UBLOX_C029": {
         "supported_form_factors": ["ARDUINO"],
         "core": "Cortex-M4F",
-        "default_toolchain": "uARM",
+        "default_toolchain": "ARM",
         "supported_toolchains": ["ARM", "uARM", "GCC_ARM", "IAR"],
         "extra_labels": ["STM", "STM32F4", "STM32F439", "STM32F439ZI"],
-        "macros": ["HSE_VALUE=24000000", "HSE_STARTUP_TIMEOUT=5000"],
+        "macros": ["HSE_VALUE=24000000", "HSE_STARTUP_TIMEOUT=5000", "CB_INTERFACE_SDIO","CB_CHIP_WL18XX","SUPPORT_80211D_ALWAYS","WLAN_ENABLED"],
         "inherits": ["Target"],
-        "device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "SERIAL", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
-        "default_lib": "small"
+        "device_has": ["ANALOGIN", "CAN", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "SERIAL", "SLEEP", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
+        "release_versions": ["5"]
     },
     "NZ32_SC151": {
         "inherits": ["Target"],

hal/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/TOOLCHAIN_GCC_ARM/STM32F439ZI.ld

@@ -1,9 +1,9 @@
 /* Linker script to configure memory regions. */
 MEMORY
 { 
-  FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K
-  RAM (rwx)  : ORIGIN = 0x200001AC, LENGTH = 192k - 0x1AC
-  RAM2 (rwx) : ORIGIN = 0x10000000, LENGTH =  64k
+  FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 2048k
+  CCM (rwx) : ORIGIN = 0x10000000, LENGTH = 64K
+  RAM (rwx) : ORIGIN = 0x200001AC, LENGTH = 192k - 0x1AC 
 }
 
 /* Linker script to place sections and symbol values. Should be used together

hal/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/TOOLCHAIN_GCC_ARM/startup_stm32f439xx.S

@@ -110,9 +110,14 @@ LoopFillZerobss:
 /* Call the clock system intitialization function.*/
   bl  SystemInit   
 /* Call static constructors */
-    bl __libc_init_array
+  //bl __libc_init_array
 /* Call the application's entry point.*/
-  bl  main
+  //bl  main
+  // Calling the crt0 'cold-start' entry point. There __libc_init_array is called
+  // and when existing hardware_init_hook() and software_init_hook() before 
+  // starting main(). software_init_hook() is available and has to be called due 
+  // to initializsation when using rtos.
+  bl _start
   bx  lr    
 .size  Reset_Handler, .-Reset_Handler
 

hal/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/hal_tick.c

@@ -69,6 +69,16 @@ void timer_irq_handler(void) {
 
 // Reconfigure the HAL tick using a standard timer instead of systick.
 HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority) {
+    RCC_ClkInitTypeDef RCC_ClkInitStruct;
+    uint32_t PclkFreq;
+
+    // Get clock configuration
+    // Note: PclkFreq contains here the Latency (not used after)
+    HAL_RCC_GetClockConfig(&RCC_ClkInitStruct, &PclkFreq);
+  
+    // Get TIM5 clock value
+    PclkFreq = HAL_RCC_GetPCLK1Freq();
+  
     // Enable timer clock
     TIM_MST_RCC;
 
@@ -79,8 +89,14 @@ HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority) {
     // Configure time base
     TimMasterHandle.Instance = TIM_MST;
     TimMasterHandle.Init.Period            = 0xFFFFFFFF;
-    TimMasterHandle.Init.Prescaler         = (uint32_t)( SystemCoreClock / 1000000) - 1; // 1 us tick
-	  TimMasterHandle.Init.ClockDivision     = 0;
+  
+    // TIMxCLK = PCLKx when the APB prescaler = 1 else TIMxCLK = 2 * PCLKx
+    if (RCC_ClkInitStruct.APB1CLKDivider == RCC_HCLK_DIV1)
+      TimMasterHandle.Init.Prescaler   = (uint16_t)((PclkFreq) / 1000000) - 1; // 1 us tick
+    else
+      TimMasterHandle.Init.Prescaler   = (uint16_t)((PclkFreq * 2) / 1000000) - 1; // 1 us tick  
+  
+    TimMasterHandle.Init.ClockDivision     = 0;
     TimMasterHandle.Init.CounterMode       = TIM_COUNTERMODE_UP;
     TimMasterHandle.Init.RepetitionCounter = 0;
     HAL_TIM_OC_Init(&TimMasterHandle);

hal/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/hal_tick.h

@@ -51,6 +51,8 @@
 
 #define HAL_TICK_DELAY (1000) // 1 ms
 
+void HAL_SuspendTick(void);
+
 #ifdef __cplusplus
 }
 #endif