//******************************************************************************************
//  STM32 Value line discovery (STM32F100RB) ARM Cortex M3
//   Project      :
//   Program Name :
//   Programer    :
//   Create date  :  Version 1.0    H22.10.25
//   Replace date :
//   History      :
//   Laungage     :  FreeRTOS ( Atollic TrueSTUDIO ) 
//******************************************************************************************
//   Description
//
//******************************************************************************************
/* Scheduler include files. */
#include "stm32f10x.h"
#include "FreeRTOS.h"
#include "semphr.h"
#include "task.h"

void User_Confugration( void );
void Put_PORT(unsigned int   );
static void User_TASK_1( void *pvParameters );
static void User_TASK_2( void *pvParameters );
void Move_LED( unsigned int *);
//
xSemaphoreHandle       Ind_Seph;
portBASE_TYPE          Ind_tmp;
volatile unsigned int  TASK1_LED = 0x0001;     
volatile unsigned int  TASK2_LED = 0x0010;

void main( void )
{
// *****************
// 1.Initalized
// *****************
    User_Confugration( );
    vSemaphoreCreateBinary(Ind_Seph);    // Create Semaphore

// *****************
// 2.Create Task
// *****************
    xTaskCreate( User_TASK_1, ( const char * const ) "User_Task_1", 100, NULL, 1, NULL );
    xTaskCreate( User_TASK_2, ( const char * const ) "User_Task_2", 100, NULL, 1, NULL );

// *****************
// 3.Start Scheduler
// *****************
    vTaskStartScheduler();	

}

//******************************************************************************************
//   Function Name : User_TASK_1
//   Title         : 
//   Input         : 
//   Output        : 
//******************************************************************************************
static void User_TASK_1( void *pvParameters )
{
       
    while(1){
        Move_LED(&TASK1_LED);
        Put_PORT(TASK1_LED | TASK2_LED);
        if((TASK1_LED & 0x0001)==1) xSemaphoreGiveFromISR(Ind_Seph, &Ind_tmp); 
        vTaskDelay(125 / portTICK_RATE_MS);
    }
}

//******************************************************************************************
//   Function Name : User_TASK_2
//   Title         : 
//   Input         : 
//   Output        : 
//******************************************************************************************
static void User_TASK_2( void *pvParameters )
{
    while(1){
        Move_LED(&TASK2_LED);
        Put_PORT(TASK1_LED | TASK2_LED);
        xSemaphoreTake(Ind_Seph, portMAX_DELAY);
    }
}

//******************************************************************************************
//   Function Name : Move_LED
//   Title         : 
//   Input         : 
//   Output        : 
//******************************************************************************************
void Move_LED( unsigned int *led_lst )
{
    if((*led_lst & 0b10000000) != 0 ){
        *led_lst = ( *led_lst << 1 ) | 0b00000001;
    }else{
        *led_lst = ( *led_lst << 1 ) & 0b11111110;
    }

}

//******************************************************************************************
//    
//    Confugration
//   
//  
//******************************************************************************************
void User_Confugration( void )
{
// (1)Define APB2(peripheral clock enable register)
    RCC->APB2ENR = 0x000C;    // APB2ENR[2-3]:IOPAEN,IOPBEN   I/O port A,B clock enable
                              // Set and cleared by software. 0: I/O portn clock disabled, 1:I/O portn clock enabled
// (2)Define I/O Port A
    GPIOA->CRL  = 0x11111111; // Port configuration register low (GPIOn[0-7])
    GPIOA->CRH  = 0x11111111; // Port configuration register high(GPIOn[8-15])
                              //      CNF=00: General purpose output push-pull, MODE=01:Output mode, max speed 10 MHz
//  GPIOA->IDR                // Port input data register (Read Only)   IDR[31-16]:Reserved,�@IDR[15-0]:Port output data
    GPIOA->ODR  = 0x00000000; // Port output data register   ODR[31-16]:Reserved,�@ODR[15-0]:Port output data
//  GPIOA->BSRR               // Port bit set/reset registe
//  GPIOA->BRR                // Port bit reset register
//  GPIOA->LCKR               // Port configuration lock register

// (3)Define I/O Port B
    GPIOB->CRL  = 0x11111111; // Port configuration register low (GPIOn[0-7])
    GPIOB->CRH  = 0x11111111; // Port configuration register high(GPIOn[8-15])
                              //      CNF=00: General purpose output push-pull, MODE=01:Output mode, max speed 10 MHz
//  GPIOB->IDR                // Port input data register (Read Only)   IDR[31-16]:Reserved,�@IDR[15-0]:Port output data
    GPIOB->ODR  = 0x00000000; // Port output data register   ODR[31-16]:Reserved,�@ODR[15-0]:Port output data
//  GPIOB->BSRR               // Port bit set/reset registe
//  GPIOB->BRR                // Port bit reset register
//  GPIOB->LCKR               // Port configuration lock register


}

void Put_PORT(unsigned int put_data )
{
    GPIOA->ODR = put_data | (put_data << 8);
    GPIOB->ODR = put_data | (put_data << 8);
}




//******************************************************************************************
//    
//    Dummy Function
//   
//  
//******************************************************************************************
void vApplicationMallocFailedHook(void){}
void vApplicationIdleHook(void){}
void taskFIRST_CHECK_FOR_STACK_OVERFLOW(void){}
void taskSECOND_CHECK_FOR_STACK_OVERFLOW(void){}
void vApplicationStackOverflowHook(void){}