bsp.c

stm32 ucos 精简移殖版本 不需作任何修改直接便可运行。包含串口 定时器

/*
*********************************************************************************************************
*                                     MICIRUM BOARD SUPPORT PACKAGE
*
*                             (c) Copyright 2007; Micrium, Inc.; Weston, FL
*
*               All rights reserved.  Protected by international copyright laws.
*               Knowledge of the source code may NOT be used to develop a similar product.
*               Please help us continue to provide the Embedded community with the finest
*               software available.  Your honesty is greatly appreciated.
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*
*                                        BOARD SUPPORT PACKAGE
*
*                                     ST Microelectronics STM32
*                                              with the
*                                   STM3210B-LK1 Evaluation Board
*
* Filename      : bsp.c
* Version       : V1.10
* Programmer(s) : BH3NVN
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*                                             INCLUDE FILES
*********************************************************************************************************
*/

#define  BSP_MODULE
#include <bsp.h>

/*
*********************************************************************************************************
*                                            LOCAL DEFINES
*********************************************************************************************************
*/
                                                                
#define  GPIO_RxPin                              GPIO_Pin_10
#define  GPIO_TxPin                              GPIO_Pin_9

#define  GPIO_UART2RxPin                              GPIO_Pin_3
#define  GPIO_UART2TxPin                              GPIO_Pin_2


#define  BSP_GPIOC_LED1                           DEF_BIT_08
#define  BSP_GPIOC_LED2                           DEF_BIT_09


#define  BSP_GPIOA_PB_KEY1                        DEF_BIT_00
#define  BSP_GPIOB_PB_KEY2                        DEF_BIT_09

/*
*********************************************************************************************************
*                                           LOCAL CONSTANTS
*********************************************************************************************************
*/


/*
*********************************************************************************************************
*                                          LOCAL DATA TYPES
*********************************************************************************************************
*/


/*
*********************************************************************************************************
*                                            LOCAL TABLES
*********************************************************************************************************
*/


/*
*********************************************************************************************************
*                                       LOCAL GLOBAL VARIABLES
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*                                      LOCAL FUNCTION PROTOTYPES
*********************************************************************************************************
*/

static  void  BSP_ADC_Init     (void);

static  void  BSP_LED_Init     (void);

static  void  BSP_PB_Init      (void);

static  void GPIO_Configuration(void);

#ifdef __GNUC__
  /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
     set to 'Yes') calls __io_putchar() */
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */

/*******************************************************************************
* Function Name  : PUTCHAR_PROTOTYPE
* Description    : Retargets the C library printf function to the USART.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
PUTCHAR_PROTOTYPE
{
  /* Write a character to the USART */
  USART_SendData(USART1, (u8) ch);

  /* Loop until the end of transmission */
  while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET)
  {
  }
    return ch;
}

void NVIC_Configuration(void)
{
 NVIC_InitTypeDef NVIC_InitStructure; 

  NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);   

  /* Enable the USART1 Interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQChannel;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 5;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

  NVIC_Init(&NVIC_InitStructure); 

  USART_ITConfig(USART2,USART_IT_RXNE,ENABLE);
  USART_ClearITPendingBit(USART2,USART_IT_RXNE); 
}



void UART2_int(void)
{
	  USART_InitTypeDef USART_InitStructure;
	  GPIO_InitTypeDef GPIO_InitStructure;

  USART_InitStructure.USART_BaudRate = 9600;
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;
  USART_InitStructure.USART_StopBits = USART_StopBits_1;
  USART_InitStructure.USART_Parity = USART_Parity_No ;
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;


	RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);

  /* Configure USARTx_Tx as alternate function push-pull */
  GPIO_StructInit(&GPIO_InitStructure);
  GPIO_InitStructure.GPIO_Pin = GPIO_UART2TxPin;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

  /* Configure USARTx_Rx as input floating */
  GPIO_StructInit(&GPIO_InitStructure);
  GPIO_InitStructure.GPIO_Pin = GPIO_UART2RxPin; 
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOA, &GPIO_InitStructure);  
  
	USART_Init(USART2,&USART_InitStructure); 
	USART_Cmd(USART2, ENABLE);  
	NVIC_Configuration();	
	//USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);	

	
}
/*
*********************************************************************************************************
*                                               BSP_Init()
*
* Description : Initialize the Board Support Package (BSP).
*
* Argument(s) : none.
*
* Return(s)   : none.
*
* Caller(s)   : Application.
*
* Note(s)     : (1) This function SHOULD be called before any other BSP function is called.
*********************************************************************************************************
*/

void  BSP_Init (void)
{
  USART_InitTypeDef USART_InitStructure;
  /* USARTx configuration ------------------------------------------------------*/
  /* USARTx configured as follow:
        - BaudRate = 115200 baud  
        - Word Length = 8 Bits
        - One Stop Bit
        - No parity
        - Hardware flow control disabled (RTS and CTS signals)
        - Receive and transmit enabled
  */
  USART_InitStructure.USART_BaudRate = 9600;
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;
  USART_InitStructure.USART_StopBits = USART_StopBits_1;
  USART_InitStructure.USART_Parity = USART_Parity_No ;
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;

    RCC_DeInit();
    RCC_HSEConfig(RCC_HSE_ON);
    RCC_WaitForHSEStartUp();

    RCC_HCLKConfig(RCC_SYSCLK_Div1);
    RCC_PCLK2Config(RCC_HCLK_Div1);
    RCC_PCLK1Config(RCC_HCLK_Div2);
    RCC_ADCCLKConfig(RCC_PCLK2_Div6);

	RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

    FLASH_SetLatency(FLASH_Latency_2);
    FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

    RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
    RCC_PLLCmd(ENABLE);

    while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) {
        ;
    }

    RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);

    while (RCC_GetSYSCLKSource() != 0x08) {
        ;
    }


/*
SCU_AHBPeriphClockConfig(__VIC,ENABLE);

//VIC_DeInit();
VIC_Config(UART1_ITLine, VIC_IRQ, 15);
VIC_ITCmd(UART1_ITLine, ENABLE);
*/


    BSP_ADC_Init();                                             /* Initialize the I/Os for the ADC      controls.       */
    BSP_LED_Init();                                             /* Initialize the I/Os for the LED      controls.       */
	BSP_PB_Init();                                              		/* Initialize the I/Os for the PB       control.        */
   // BSP_Joystick_Init();                                        /* Initialize the I/Os for the Joystick control. 		 */
	GPIO_Configuration();
	USART_Init(USART1,&USART_InitStructure); 
	USART_Cmd(USART1, ENABLE);   
	UART2_int();
}

/*******************************************************************************
* Function Name  : GPIO_Configuration
* Description    : Configures the different GPIO ports.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void GPIO_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Configure USARTx_Tx as alternate function push-pull */
  GPIO_InitStructure.GPIO_Pin = GPIO_TxPin;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

  /* Configure USARTx_Rx as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_RxPin;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOA, &GPIO_InitStructure);  

}

/*
*********************************************************************************************************
*                                            BSP_CPU_ClkFreq()
*
* Description : Read CPU registers to determine the CPU clock frequency of the chip.
*
* Argument(s) : none.
*
* Return(s)   : The CPU clock frequency, in Hz.
*
* Caller(s)   : Application.
*
* Note(s)     : none.
*********************************************************************************************************
*/


CPU_INT32U  BSP_CPU_ClkFreq (void)
{
    RCC_ClocksTypeDef  rcc_clocks;


    RCC_GetClocksFreq(&rcc_clocks);

    return ((CPU_INT32U)rcc_clocks.HCLK_Frequency);
}

/*
*********************************************************************************************************
*********************************************************************************************************
*                                         OS CORTEX-M3 FUNCTIONS
*********************************************************************************************************
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*                                         OS_CPU_SysTickClkFreq()
*
* Description : Get system tick clock frequency.
*
* Argument(s) : none.
*
* Return(s)   : Clock frequency (of system tick).
*
* Caller(s)   : BSP_Init().
*
* Note(s)     : none.
*********************************************************************************************************
*/

INT32U  OS_CPU_SysTickClkFreq (void)
{
    INT32U  freq;


    freq = BSP_CPU_ClkFreq();
    return (freq);
}

/*
*********************************************************************************************************
*********************************************************************************************************