Duplicated blinky.c file to blinky.cpp file

examples/blinky/blinky.cpp

@@ -0,0 +1,62 @@
+#if defined STM32L0
+    #include <stm32l0xx_hal.h>
+
+    // STM32L0538-Discovery green led - PB4
+    #define LED_PORT                GPIOB
+    #define LED_PIN                 GPIO_PIN_4
+    #define LED_PORT_CLK_ENABLE     __HAL_RCC_GPIOB_CLK_ENABLE
+#elif defined STM32F1
+    #include <stm32f1xx_hal.h>
+
+    // STM32VL-Discovery green led - PC9
+    #define LED_PORT                GPIOC
+    #define LED_PIN                 GPIO_PIN_9
+    #define LED_PORT_CLK_ENABLE     __HAL_RCC_GPIOC_CLK_ENABLE
+#elif defined STM32F4
+    #include <stm32f4xx_hal.h>
+
+    // STM32F4-Discovery green led - PD12
+    #define LED_PORT                GPIOD
+    #define LED_PIN                 GPIO_PIN_12
+    #define LED_PORT_CLK_ENABLE     __HAL_RCC_GPIOD_CLK_ENABLE
+#endif
+
+//This prevent name mangling for functions used in C/assembly files.
+extern "C"
+{
+    void SysTick_Handler(void)
+    {
+        HAL_IncTick();
+
+        // 1 Hz blinking
+        if ((HAL_GetTick() % 500) == 0)
+            HAL_GPIO_TogglePin(LED_PORT, LED_PIN);
+    }
+}
+
+void initGPIO()
+{
+    GPIO_InitTypeDef GPIO_Config;
+
+    GPIO_Config.Mode = GPIO_MODE_OUTPUT_PP;
+    GPIO_Config.Pull = GPIO_NOPULL;
+    GPIO_Config.Speed = GPIO_SPEED_FREQ_HIGH;
+
+    GPIO_Config.Pin = LED_PIN;
+
+    LED_PORT_CLK_ENABLE();
+    HAL_GPIO_Init(LED_PORT, &GPIO_Config);
+}
+
+int main(void)
+{
+    HAL_Init();
+    initGPIO();
+    // 1kHz ticks
+    HAL_SYSTICK_Config(SystemCoreClock / 1000);
+
+    for (;;)
+        __WFI();
+
+    return 0;
+}