add stm32f0 discovery bsp.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2143 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/stm32f0x/drivers/board.c

@@ -0,0 +1,70 @@
+/*
+ * File      : board.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009 RT-Thread Develop Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2009-01-05     Bernard      first implementation
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+
+#include "board.h"
+
+/**
+ * @addtogroup STM32
+ */
+
+/*@{*/
+
+/*******************************************************************************
+* Function Name  : NVIC_Configuration
+* Description    : Configures Vector Table base location.
+* Input          : None
+* Output         : None
+* Return         : None
+*******************************************************************************/
+void NVIC_Configuration(void)
+{
+//    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
+}
+
+/**
+ * This is the timer interrupt service routine.
+ *
+ */
+void SysTick_Handler(void)
+{
+	/* enter interrupt */
+	rt_interrupt_enter();
+
+	rt_tick_increase();
+
+	/* leave interrupt */
+	rt_interrupt_leave();
+}
+
+/**
+ * This function will initial STM32 board.
+ */
+void rt_hw_board_init()
+{
+	/* NVIC Configuration */
+	NVIC_Configuration();
+
+	/* Configure the SysTick */
+	SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
+
+	//rt_hw_usart_init();
+#ifdef RT_USING_CONSOLE
+	rt_console_set_device(CONSOLE_DEVICE);
+#endif
+}
+
+/*@}*/