bsp.c

Micrium-ST-uCOS-II-LCD-STM32.rar.rar

/*
*********************************************************************************************************
*                                     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  BSP_GPIOC_LED1                           DEF_BIT_07
#define  BSP_GPIOC_LED2                           DEF_BIT_06
#define  BSP_GPIOC_LED3                           DEF_BIT_05
#define  BSP_GPIOC_LED4                           DEF_BIT_04

#define  BSP_GPIOD_JOY_UP                         DEF_BIT_14
#define  BSP_GPIOD_JOY_SEL                        DEF_BIT_11
#define  BSP_GPIOD_JOY_DOWN                       DEF_BIT_15                                                              
#define  BSP_GPIOD_JOY_LEFT                       DEF_BIT_13
#define  BSP_GPIOD_JOY_RIGHT                      DEF_BIT_12

#define  BSP_GPIOD_PB_KEY1                        DEF_BIT_03
#define  BSP_GPIOD_PB_KEY2                        DEF_BIT_04

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


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


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


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

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

static  void  BSP_ADC_Init     (void);

static  void  BSP_Joystick_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;
}


/*
*********************************************************************************************************
*                                               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 = 115200;
  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) {
        ;
    }

    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);   
}

/*******************************************************************************
* 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);


  /* Configure LCD COMx as output */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOC, &GPIO_InitStructure);

  /* Configure LCD SEGx as output */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOE, &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);
}

/*
*********************************************************************************************************
*********************************************************************************************************
*                                              ADC FUNCTIONS
*********************************************************************************************************
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*                                             BSP_ADC_Init()
*
* Description : Initialize the board's ADC
*
* Argument(s) : none.
*
* Return(s)   : none.
*
* Caller(s)   : BSP_Init().
*
* Note(s)     : none.
*********************************************************************************************************
*/

static  void  BSP_ADC_Init (void)
{
    ADC_InitTypeDef   adc_init;
    GPIO_InitTypeDef  gpio_init;


    RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);

    gpio_init.GPIO_Pin  = GPIO_Pin_0;
    gpio_init.GPIO_Mode = GPIO_Mode_AIN;
    GPIO_Init(GPIOC, &gpio_init);

    adc_init.ADC_Mode               = ADC_Mode_Independent;
    adc_init.ADC_ScanConvMode       = DISABLE;
    adc_init.ADC_ContinuousConvMode = ENABLE;
    adc_init.ADC_ExternalTrigConv   = ADC_ExternalTrigConv_None;
    adc_init.ADC_DataAlign          = ADC_DataAlign_Right;
    adc_init.ADC_NbrOfChannel       = 1;
    ADC_Init(ADC1, &adc_init);

    ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 1, ADC_SampleTime_13Cycles5);
    ADC_Cmd(ADC1, ENABLE);
    ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}


/*
*********************************************************************************************************
*                                           BSP_ADC_GetStatus()
*
* Description : This function initializes the board's ADC
*
* Argument(s) : adc             ID of the ADC to probe.  For this board, the only legitimate value is 1.
*
* Return(s)   : The numerator of the binary fraction representing the result of the latest ADC conversion.
*               This value will be a 12-bit value between 0x0000 and 0x0FFF, inclusive.
*
* Caller(s)   : Application.
*
* Note(s)     : none.
*********************************************************************************************************
*/

CPU_INT16U  BSP_ADC_GetStatus (CPU_INT08U  adc)
{
    CPU_INT16U  result;


    result = 0;

    if (adc == 1) {
        result = ADC_GetConversionValue(ADC1);
    }

    return (result);
}
/*
*********************************************************************************************************
*********************************************************************************************************
*                                               PB FUNCTIONS
*********************************************************************************************************
*********************************************************************************************************
*/