Merge pull request #199 from bright-pan/master

It is a big patch for stm32f0x, see the fellow :

bsp/stm32f0x/applications/application.c

@@ -10,6 +10,7 @@
  * Change Logs:
  * Date           Author       Notes
  * 2009-01-05     Bernard      the first version
+ * 2013-11-15     bright       add init thread and components initial
  */
 
 /**
@@ -21,63 +22,65 @@
 
 #include <board.h>
 #include <rtthread.h>
+#ifdef  RT_USING_COMPONENTS_INIT
+#include <components.h>
+#endif  /* RT_USING_COMPONENTS_INIT */
 
-/*
-LED_GREEN: PC8
-LED_RED  : PC9
-*/
-#define rt_hw_led_on()   GPIO_SetBits(GPIOC, GPIO_Pin_9)
-#define rt_hw_led_off()  GPIO_ResetBits(GPIOC, GPIO_Pin_9)
+#include "led.h"
 
-static void rt_hw_led_init(void)
+/* led thread entry */
+static void led_thread_entry(void* parameter)
 {
-    GPIO_InitTypeDef  GPIO_InitStructure;
-
-    /* Enable the GPIO_LED Clock */
-    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
+	while(1)
+	{
+        rt_hw_led_on();
+        rt_thread_delay(RT_TICK_PER_SECOND);
 
-    /* Configure the GPIO_LED pin */
-    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
-    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
-    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
-    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
-    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
-    GPIO_Init(GPIOC, &GPIO_InitStructure);
+        rt_hw_led_off();
+        rt_thread_delay(RT_TICK_PER_SECOND);
+	}
 }
 
-ALIGN(RT_ALIGN_SIZE)
-static char led_stack[384];
-static struct rt_thread led_thread;
-
-static void led_thread_entry(void* parameter)
+static void rt_init_thread_entry(void* parameter)
 {
-    rt_hw_led_init();
+	rt_thread_t led_thread;
 
-    while(1)
-    {
-        rt_hw_led_on();
-        rt_thread_delay(RT_TICK_PER_SECOND/4);
+/* Initialization RT-Thread Components */
+#ifdef RT_USING_COMPONENTS_INIT
+    rt_components_init();
+#endif
 
-        rt_hw_led_off();
-        rt_thread_delay(RT_TICK_PER_SECOND/4);
-    }
+/* Set finsh device */
+#ifdef  RT_USING_FINSH
+    finsh_set_device(RT_CONSOLE_DEVICE_NAME);
+#endif  /* RT_USING_FINSH */
+
+    /* Create led thread */
+    led_thread = rt_thread_create("led",
+    		led_thread_entry, RT_NULL,
+    		256, 20, 20);
+    if(led_thread != RT_NULL)
+    	rt_thread_startup(led_thread);
 }
 
 int rt_application_init()
 {
-    rt_err_t result;
+	rt_thread_t init_thread;
 
-    result = rt_thread_init(&led_thread,
-                            "led",
-                            led_thread_entry,
-                            RT_NULL,
-                            &led_stack[0],
-                            sizeof(led_stack),
-                            4,
-                            2);
-    if(result == RT_EOK) rt_thread_startup(&led_thread);
+#if (RT_THREAD_PRIORITY_MAX == 32)
+    init_thread = rt_thread_create("init",
+                                   rt_init_thread_entry, RT_NULL,
+                                   512, 8, 20);
+#else
+    init_thread = rt_thread_create("init",
+                                   rt_init_thread_entry, RT_NULL,
+                                   512, 80, 20);
+#endif
+    if(init_thread != RT_NULL)
+    	rt_thread_startup(init_thread);
 
     return 0;
 }
 
+
 /*@}*/

bsp/stm32f0x/applications/startup.c

@@ -10,7 +10,7 @@
  * Change Logs:
  * Date           Author       Notes
  * 2006-08-31     Bernard      first implementation
- * 2011-06-05     Bernard      modify for STM32F107 version
+ * 2013-11-15     bright       modify for stm32f0xx version and components initial
  */
 
 #include <rthw.h>
@@ -94,12 +94,6 @@ void rtthread_startup(void)
 	/* init application */
 	rt_application_init();
 
-#ifdef RT_USING_FINSH
-	/* init finsh */
-	finsh_system_init();
-	finsh_set_device( FINSH_DEVICE_NAME );
-#endif
-
     /* init timer thread */
     rt_system_timer_thread_init();
 

bsp/stm32f0x/drivers/board.c

@@ -10,13 +10,18 @@
  * Change Logs:
  * Date           Author       Notes
  * 2009-01-05     Bernard      first implementation
+ * 2013-11-15     bright       add RCC initial and print RCC freq function
  */
 
 #include <rthw.h>
 #include <rtthread.h>
 
 #include "board.h"
-
+#include "usart.h"
+/* RT_USING_COMPONENTS_INIT */
+#ifdef  RT_USING_COMPONENTS_INIT
+#include <components.h>
+#endif
 /**
  * @addtogroup STM32
  */
@@ -35,6 +40,79 @@ void NVIC_Configuration(void)
 //    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
 }
 
+/**
+* @brief  Inserts a delay time.
+* @param  nCount: specifies the delay time length.
+* @retval None
+*/
+static void Delay(__IO uint32_t nCount)
+{
+	/* Decrement nCount value */
+	while (nCount != 0)
+	{
+		nCount--;
+	}
+}
+
+/**
+ * This RCC initial for system.
+ * use HSI clock source and pll
+ * HSI = 8; sysclk = 8/2 * 12 = 48MHZ
+ * sysclk source is pllclk
+ * AHB prescaler is 1, HCLK = SYSCKL = SystemCoreClock = 48MHZ
+ */
+static void RCC_Configuration(void)
+{
+	RCC_DeInit();
+	/* setup HSI */
+	RCC_HSICmd(ENABLE);
+	/* Configure PLL source is HSI */
+	RCC_PLLConfig(RCC_PLLSource_HSI_Div2, RCC_PLLMul_12);
+	RCC_PLLCmd(ENABLE);
+	/* Configure SYSCLK source is PLL */
+	RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
+	/* Conigure AHB prescaler value is 1 */
+	RCC_HCLKConfig(RCC_SYSCLK_Div1);
+	/* Delay for RCC setup */
+	Delay(0x3FFFF);
+	/* Update SystemCoreClock value from RCC configure */
+	SystemCoreClockUpdate();
+}
+
+#ifdef PRINT_RCC_FREQ_INFO
+/**
+ * print RCC freq information
+ *
+ * for example:
+ *
+ * SYSCLK_Frequency is 48000000HZ
+ * PCLK_Frequency is 48000000HZ
+ * HCLK_Frequency is 48000000HZ
+ * CECCLK_Frequency is 32786HZ
+ * ADCCLK_Frequency is 14000000HZ
+ * USART1CLK_Frequency is 48000000HZ
+ * I2C1CLK_Frequency is 8000000HZ
+ * SystemCoreClock is 48000000HZ
+ *
+ */
+void print_rcc_freq_info(void)
+{
+	RCC_ClocksTypeDef RCC_ClockFreq;
+
+	RCC_GetClocksFreq(&RCC_ClockFreq);
+
+	rt_kprintf("\nSYSCLK_Frequency is %dHZ", RCC_ClockFreq.SYSCLK_Frequency);
+	rt_kprintf("\nPCLK_Frequency is %dHZ", RCC_ClockFreq.PCLK_Frequency);
+	rt_kprintf("\nHCLK_Frequency is %dHZ", RCC_ClockFreq.HCLK_Frequency);
+
+	rt_kprintf("\nCECCLK_Frequency is %dHZ", RCC_ClockFreq.CECCLK_Frequency);
+	rt_kprintf("\nADCCLK_Frequency is %dHZ", RCC_ClockFreq.ADCCLK_Frequency);
+	rt_kprintf("\nUSART1CLK_Frequency is %dHZ", RCC_ClockFreq.USART1CLK_Frequency);
+	rt_kprintf("\nI2C1CLK_Frequency is %dHZ", RCC_ClockFreq.I2C1CLK_Frequency);
+	rt_kprintf("\nSystemCoreClock is %dHZ\n", SystemCoreClock);
+}
+#endif
+
 /**
  * This is the timer interrupt service routine.
  *
@@ -49,7 +127,6 @@ void SysTick_Handler(void)
 	/* leave interrupt */
 	rt_interrupt_leave();
 }
-
 /**
  * This function will initial STM32 board.
  */
@@ -59,11 +136,21 @@ void rt_hw_board_init()
 	NVIC_Configuration();
 
 	/* Configure the SysTick */
+	RCC_Configuration();
 	SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
 
-	//rt_hw_usart_init();
+	/* Initial usart deriver, and set console device */
+	rt_hw_usart_init();
 #ifdef RT_USING_CONSOLE
-	rt_console_set_device(CONSOLE_DEVICE);
+	rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
+#endif
+	/* Print RCC freq info */
+#ifdef PRINT_RCC_FREQ_INFO
+	print_rcc_freq_info();
+#endif
+	/* Call components board initial (use INIT_BOARD_EXPORT()) */
+#ifdef RT_USING_COMPONENTS_INIT
+    rt_components_board_init();
 #endif
 }
 

bsp/stm32f0x/drivers/board.h

@@ -10,6 +10,7 @@
  * Change Logs:
  * Date           Author       Notes
  * 2009-09-22     Bernard      add board.h to this bsp
+ * 2013-11-15     bright       fix SRAM size for heap management
  */
 
 // <<< Use Configuration Wizard in Context Menu >>>
@@ -37,36 +38,16 @@
 
 // <o> Internal SRAM memory size[Kbytes] <8-64>
 //	<i>Default: 64
-#define STM32_SRAM_SIZE         128
+#define STM32_SRAM_SIZE         8
 #define STM32_SRAM_END          (0x20000000 + STM32_SRAM_SIZE * 1024)
 
-//#define RT_USING_UART1
-#define RT_USING_UART2
-//#define RT_USING_UART3
-
-// <o> Console on USART: <0=> no console <1=>USART 1 <2=>USART 2 <3=> USART 3
-// 	<i>Default: 1
-#define STM32_CONSOLE_USART		2
-
 void rt_hw_board_init(void);
 
-#if STM32_CONSOLE_USART == 0
-#define CONSOLE_DEVICE "no"
-#elif STM32_CONSOLE_USART == 1
-#define CONSOLE_DEVICE "uart1"
-#elif STM32_CONSOLE_USART == 2
-#define CONSOLE_DEVICE "uart2"
-#elif STM32_CONSOLE_USART == 3
-#define CONSOLE_DEVICE "uart3"
-#endif
-
-#define FINSH_DEVICE_NAME   CONSOLE_DEVICE
-
-void rt_hw_usart_init(void);
-
 /* SD Card init function */
 void rt_hw_msd_init(void);
 
+#define PRINT_RCC_FREQ_INFO
+
 #endif
 
 // <<< Use Configuration Wizard in Context Menu >>>

bsp/stm32f0x/drivers/led.c

@@ -0,0 +1,44 @@
+/*
+ * File      : led.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006-2013, RT-Thread Development 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
+ * 2013-11-15     bright       the first version
+ */
+
+#include "led.h"
+/* RT_USING_COMPONENTS_INIT */
+#ifdef  RT_USING_COMPONENTS_INIT
+#include <components.h>
+#endif
+
+/*
+LED_GREEN: PC8
+LED_RED  : PC9
+*/
+
+/* Initial led gpio pin  */
+void rt_hw_led_init(void)
+{
+    GPIO_InitTypeDef  GPIO_InitStructure;
+
+    /* Enable the GPIO_LED Clock */
+    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
+
+    /* Configure the GPIO_LED pin */
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
+    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+    GPIO_Init(GPIOC, &GPIO_InitStructure);
+}
+
+/* Initial components for device */
+INIT_DEVICE_EXPORT(rt_hw_led_init);

bsp/stm32f0x/drivers/led.h

@@ -0,0 +1,27 @@
+/*
+ * File      : led.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009, RT-Thread Development 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
+ * 2013-13-05     bright       the first version
+ */
+
+#ifndef __LED_H__
+#define __LED_H__
+
+#include <rthw.h>
+#include <rtthread.h>
+#include <stm32f0xx.h>
+
+#define rt_hw_led_on()   GPIO_SetBits(GPIOC, GPIO_Pin_9)
+#define rt_hw_led_off()  GPIO_ResetBits(GPIOC, GPIO_Pin_9)
+
+void rt_hw_led_init(void);
+
+#endif

bsp/stm32f0x/drivers/usart.c

@@ -0,0 +1,310 @@
+/*
+ * File      : usart.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006-2013, RT-Thread Development 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
+ * 2013-11-15     bright       the first version
+ */
+
+#include <stm32f0xx.h>
+#include <rtdevice.h>
+#include "usart.h"
+
+/* USART1 */
+#define UART1_GPIO_TX			GPIO_Pin_9
+#define UART1_GPIO_TX_SOURCE	GPIO_PinSource9
+#define UART1_GPIO_RX			GPIO_Pin_10
+#define UART1_GPIO_RX_SOURCE	GPIO_PinSource10
+#define UART1_GPIO_AF			GPIO_AF_1
+#define UART1_GPIO				GPIOA
+
+/* USART2 */
+#define UART2_GPIO_TX			GPIO_Pin_2
+#define UART2_GPIO_TX_SOURCE	GPIO_PinSource2
+#define UART2_GPIO_RX			GPIO_Pin_3
+#define UART2_GPIO_RX_SOURCE	GPIO_PinSource3
+#define UART2_GPIO_AF			GPIO_AF_1
+#define UART2_GPIO				GPIOA
+
+/* STM32 uart driver */
+struct stm32_uart
+{
+    USART_TypeDef* uart_device;
+    IRQn_Type irq;
+};
+
+static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
+{
+    struct stm32_uart* uart;
+    USART_InitTypeDef USART_InitStructure;
+
+    RT_ASSERT(serial != RT_NULL);
+    RT_ASSERT(cfg != RT_NULL);
+
+    uart = (struct stm32_uart *)serial->parent.user_data;
+
+    USART_InitStructure.USART_BaudRate = cfg->baud_rate;
+
+    if (cfg->data_bits == DATA_BITS_8)
+        USART_InitStructure.USART_WordLength = USART_WordLength_8b;
+
+    if (cfg->stop_bits == STOP_BITS_1)
+        USART_InitStructure.USART_StopBits = USART_StopBits_1;
+    else if (cfg->stop_bits == STOP_BITS_2)
+        USART_InitStructure.USART_StopBits = USART_StopBits_2;
+
+    USART_InitStructure.USART_Parity = USART_Parity_No;
+    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
+    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
+    USART_Init(uart->uart_device, &USART_InitStructure);
+
+    /* Enable USART */
+    USART_Cmd(uart->uart_device, ENABLE);
+    /* enable interrupt */
+    USART_ITConfig(uart->uart_device, USART_IT_RXNE, ENABLE);
+
+    return RT_EOK;
+}
+
+static rt_err_t stm32_control(struct rt_serial_device *serial, int cmd, void *arg)
+{
+    struct stm32_uart* uart;
+
+    RT_ASSERT(serial != RT_NULL);
+    uart = (struct stm32_uart *)serial->parent.user_data;
+
+    switch (cmd)
+    {
+    case RT_DEVICE_CTRL_CLR_INT:
+        /* disable rx irq */
+        UART_DISABLE_IRQ(uart->irq);
+        break;
+    case RT_DEVICE_CTRL_SET_INT:
+        /* enable rx irq */
+        UART_ENABLE_IRQ(uart->irq);
+        break;
+    }
+
+    return RT_EOK;
+}
+
+static int stm32_putc(struct rt_serial_device *serial, char c)
+{
+    struct stm32_uart* uart;
+
+    RT_ASSERT(serial != RT_NULL);
+    uart = (struct stm32_uart *)serial->parent.user_data;
+
+    while (!(uart->uart_device->ISR & USART_FLAG_TXE));
+    uart->uart_device->TDR = c;
+
+    return 1;
+}
+
+static int stm32_getc(struct rt_serial_device *serial)
+{
+    int ch;
+    struct stm32_uart* uart;
+
+    RT_ASSERT(serial != RT_NULL);
+    uart = (struct stm32_uart *)serial->parent.user_data;
+
+    ch = -1;
+    if (uart->uart_device->ISR & USART_FLAG_RXNE)
+    {
+        ch = uart->uart_device->RDR & 0xff;
+    }
+
+    return ch;
+}
+
+static const struct rt_uart_ops stm32_uart_ops =
+{
+    stm32_configure,
+    stm32_control,
+    stm32_putc,
+    stm32_getc,
+};
+
+#if defined(RT_USING_UART1)
+/* UART1 device driver structure */
+struct serial_ringbuffer uart1_int_rx;
+struct stm32_uart uart1 =
+{
+    USART1,
+    USART1_IRQn,
+};
+struct rt_serial_device serial1;
+
+void USART1_IRQHandler(void)
+{
+    struct stm32_uart* uart;
+
+    uart = &uart1;
+
+    /* enter interrupt */
+    rt_interrupt_enter();
+    if(USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
+    {
+        rt_hw_serial_isr(&serial1);
+        /* clear interrupt */
+        USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
+    }
+    if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
+    {
+        /* clear interrupt */
+        USART_ClearITPendingBit(uart->uart_device, USART_IT_TC);
+    }
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /* RT_USING_UART1 */
+
+#if defined(RT_USING_UART2)
+/* UART2 device driver structure */
+struct serial_ringbuffer uart2_int_rx;
+struct stm32_uart uart2 =
+{
+    USART2,
+    USART2_IRQn,
+};
+struct rt_serial_device serial2;
+
+void USART2_IRQHandler(void)
+{
+    struct stm32_uart* uart;
+
+    uart = &uart2;
+
+    /* enter interrupt */
+    rt_interrupt_enter();
+    if(USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
+    {
+        rt_hw_serial_isr(&serial2);
+        /* clear interrupt */
+        USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
+    }
+    if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
+    {
+        /* clear interrupt */
+        USART_ClearITPendingBit(uart->uart_device, USART_IT_TC);
+    }
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /* RT_USING_UART2 */
+
+static void RCC_Configuration(void)
+{
+#ifdef RT_USING_UART1
+    /* Enable GPIO clock */
+    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
+    /* Enable USART clock */
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
+#endif /* RT_USING_UART1 */
+
+#ifdef RT_USING_UART2
+    /* Enable GPIO clock */
+    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
+    /* Enable USART clock */
+    RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
+#endif /* RT_USING_UART2 */
+
+}
+
+static void GPIO_Configuration(void)
+{
+    GPIO_InitTypeDef GPIO_InitStructure;
+
+#ifdef RT_USING_UART1
+	/* Connect PXx to USARTx_Tx */
+	GPIO_PinAFConfig(UART1_GPIO, UART1_GPIO_TX_SOURCE, UART1_GPIO_AF);
+
+	/* Connect PXx to USARTx_Rx */
+	GPIO_PinAFConfig(UART1_GPIO, UART1_GPIO_RX_SOURCE, UART1_GPIO_AF);
+
+	/* Configure USART Tx, Rx as alternate function push-pull */
+	GPIO_InitStructure.GPIO_Pin = UART1_GPIO_TX | UART1_GPIO_RX;
+	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
+	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+	GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+	GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
+	GPIO_Init(UART1_GPIO, &GPIO_InitStructure);
+#endif /* RT_USING_UART1 */
+
+#ifdef RT_USING_UART2
+	/* Connect PXx to USARTx_Tx */
+	GPIO_PinAFConfig(UART2_GPIO, UART2_GPIO_TX_SOURCE, UART2_GPIO_AF);
+
+	/* Connect PXx to USARTx_Rx */
+	GPIO_PinAFConfig(UART2_GPIO, UART2_GPIO_RX_SOURCE, UART2_GPIO_AF);
+
+	/* Configure USART Tx, Rx as alternate function push-pull */
+	GPIO_InitStructure.GPIO_Pin = UART2_GPIO_TX | UART2_GPIO_RX;
+	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
+	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+	GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+	GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
+	GPIO_Init(UART2_GPIO, &GPIO_InitStructure);
+#endif /* RT_USING_UART2 */
+}
+
+static void NVIC_Configuration(struct stm32_uart* uart)
+{
+    NVIC_InitTypeDef NVIC_InitStructure;
+
+    /* Enable the USART Interrupt */
+    NVIC_InitStructure.NVIC_IRQChannel = uart->irq;
+    NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+    NVIC_Init(&NVIC_InitStructure);
+}
+
+void rt_hw_usart_init(void)
+{
+    struct stm32_uart* uart;
+    struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
+
+    RCC_Configuration();
+    GPIO_Configuration();
+
+#ifdef RT_USING_UART1
+    uart = &uart1;
+    config.baud_rate = BAUD_RATE_115200;
+
+    serial1.ops    = &stm32_uart_ops;
+    serial1.int_rx = &uart1_int_rx;
+    serial1.config = config;
+
+    NVIC_Configuration(&uart1);
+
+    /* register UART1 device */
+    rt_hw_serial_register(&serial1, "uart1",
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
+                          uart);
+#endif /* RT_USING_UART1 */
+
+#ifdef RT_USING_UART2
+    uart = &uart2;
+
+    config.baud_rate = BAUD_RATE_115200;
+    serial2.ops    = &stm32_uart_ops;
+    serial2.int_rx = &uart2_int_rx;
+    serial2.config = config;
+
+    NVIC_Configuration(&uart2);
+
+    /* register UART1 device */
+    rt_hw_serial_register(&serial2, "uart2",
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
+                          uart);
+#endif /* RT_USING_UART2 */
+}

bsp/stm32f0x/drivers/usart.h

@@ -0,0 +1,30 @@
+/*
+ * File      : usart.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2009, RT-Thread Development 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
+ * 2013-11-15     bright       the first version
+ */
+
+#ifndef __USART_H__
+#define __USART_H__
+
+#include <rthw.h>
+#include <rtthread.h>
+#include "stm32f0xx.h"
+
+#define RT_USING_UART1
+#define RT_USING_UART2
+
+#define UART_ENABLE_IRQ(n)            NVIC_EnableIRQ((n))
+#define UART_DISABLE_IRQ(n)           NVIC_DisableIRQ((n))
+
+void rt_hw_usart_init(void);
+
+#endif

bsp/stm32f0x/rtconfig.h

@@ -9,15 +9,16 @@
 #define RT_ALIGN_SIZE	4
 
 /* PRIORITY_MAX */
-#define RT_THREAD_PRIORITY_MAX	8
+#define RT_THREAD_PRIORITY_MAX	32
 
 /* Tick per Second */
 #define RT_TICK_PER_SECOND	100
 
 /* SECTION: RT_DEBUG */
 /* Thread Debug */
-/* #define RT_DEBUG */
-/* #define RT_USING_OVERFLOW_CHECK */
+#define RT_DEBUG
+#define RT_DEBUG_INIT 1
+#define RT_USING_OVERFLOW_CHECK
 
 /* Using Hook */
 /* #define RT_USING_HOOK */
@@ -49,27 +50,58 @@
 /* #define RT_USING_MEMPOOL */
 
 /* Using Dynamic Heap Management */
-/* #define RT_USING_HEAP */
+#define RT_USING_HEAP
 
 /* Using Small MM */
 #define RT_USING_SMALL_MEM
 #define RT_USING_TINY_SIZE
 
+// <bool name="RT_USING_COMPONENTS_INIT" description="Using RT-Thread components initialization" default="true" />
+#define RT_USING_COMPONENTS_INIT
+
 /* SECTION: Device System */
 /* Using Device System */
-/* #define RT_USING_DEVICE */
+#define RT_USING_DEVICE
+// <bool name="RT_USING_DEVICE_IPC" description="Using device communication" default="true" />
+#define RT_USING_DEVICE_IPC
+// <bool name="RT_USING_SERIAL" description="Using Serial" default="true" />
+#define RT_USING_SERIAL
 
 /* SECTION: Console options */
-//#define RT_USING_CONSOLE
+#define RT_USING_CONSOLE
 /* the buffer size of console*/
 #define RT_CONSOLEBUF_SIZE	128
+// <string name="RT_CONSOLE_DEVICE_NAME" description="The device name for console" default="uart1" />
+#define RT_CONSOLE_DEVICE_NAME	    "uart1"
+
+
 
 /* SECTION: finsh, a C-Express shell */
-/* #define RT_USING_FINSH */
+#define RT_USING_FINSH
+/* configure finsh parameters */
+#define FINSH_THREAD_PRIORITY 25
+#define FINSH_THREAD_STACK_SIZE	1024
+#define FINSH_HISTORY_LINES	1
 /* Using symbol table */
 #define FINSH_USING_SYMTAB
 #define FINSH_USING_DESCRIPTION
 
+/* SECTION: libc management */
+#ifdef __CC_ARM
+/* #define RT_USING_MINILIBC */
+/* #define RT_USING_NEWLIB */
+#endif
+
+#ifdef __ICCARM__
+/* #define RT_USING_MINILIBC */
+/* #define RT_USING_NEWLIB */
+#endif
+
+#ifdef __GNUC__
+/* #define RT_USING_MINILIBC */
+#define RT_USING_NEWLIB
+#endif
+
 /* SECTION: device filesystem */
 /* #define RT_USING_DFS */
 //#define RT_USING_DFS_ELMFAT