#ifndef BSP_H

#define BSP_H

/**

  IO Connection map

       SSD1303

  Vcc   1  2  Gnd

D1/Data 3  4  D0/Clk

    D3  5  6  D2

    D5  7  8  D4

    D7  9 10  D6

    WR 11 12  RD

   RES 13 14  A0  (1-data,0-command)

   CS  15 16  C86 (1-8080, 0-SPI)

       STM32

  D0/Clk    PB13/SPI2 Clk

  D1/Data   PB15/SPI2 MOSI

  RES       PB12

  A0        PB14

  CS        Gnd

  D2~D7     (Float)

  WR        (Float)

  RD        (Float)

 */

#define   SSD_Clk         GPIOA,GPIO_Pin_5

#define   SSD_Data        GPIOA,GPIO_Pin_7

#define   SSD_Reset       GPIOB,GPIO_Pin_2

#define   SSD_A0          GPIOB,GPIO_Pin_10

#define   SSD_CS          GPIOB,GPIO_Pin_1

#define   SSD_Clk_Low()     GPIOA->BRR = GPIO_Pin_5

#define   SSD_Clk_High()    GPIOA->ODR |= GPIO_Pin_5

#define   SSD_Data_Low()    GPIOA->BRR = GPIO_Pin_7

#define   SSD_Data_High()   GPIOA->ODR |= GPIO_Pin_7

#define   SSD_Reset_Low()   GPIOB->BRR = GPIO_Pin_2

#define   SSD_Reset_High()  GPIOB->ODR |= GPIO_Pin_2

#define   SSD_A0_Low()      GPIOB->BRR = GPIO_Pin_10

#define   SSD_A0_High()     GPIOB->ODR |= GPIO_Pin_10

#define   SSD_CS_Low()      GPIOB->BRR = GPIO_Pin_1

#define   SSD_CS_High()     GPIOB->ODR |= GPIO_Pin_1

// Use stdperiph

#define   SPI_SendByte(data)  SPI_I2S_SendData(SPI1, data);  //SPI1->DR = (data)

#define   IsLedOn()       (!(GPIOA->ODR & GPIO_Pin_8))

#define   LED_ON()        GPIOA->BRR = GPIO_Pin_8

#define   LED_OFF()       GPIOA->BSRR = GPIO_Pin_8

#define   ToggleLED()     if(GPIOA->ODR & GPIO_Pin_8){GPIOA->BRR = GPIO_Pin_8;}\

                          else{GPIOA->BSRR = GPIO_Pin_8;}

#define   GSel1_High()    GPIOB->BSRR = GPIO_Pin_9

#define   GSel1_Low()     GPIOB->BRR = GPIO_Pin_9

#define   MMA_SLEEP()     GPIOB->BRR = GPIO_Pin_11

#define   MMA_WAKEUP()    GPIOB->BSRR = GPIO_Pin_11

#define   Is_MMA_WAKEUP() (GPIOB->ODR & GPIO_Pin_11)

#define   DMA_SSD_1303    DMA1_Channel5

#define   DMA_Handler_SSD_1303    DMA1_Channel5_IRQHandler

#define   Is_Enc_Key_Down()    (!(GPIOA->IDR & GPIO_Pin_0))

#endif

#include "main.h"

#include "stm32l100c_discovery.h"

#include "ssd1306.h"

static __IO uint32_t TimingDelay;

uint8_t BlinkSpeed = 0;

void init_gpio();

void init_spi();

/* Main */

int main(void)

{

   SystemInit();

   RCC_ClocksTypeDef RCC_Clocks;

  /* Configure LED3 and LED4 on STM32L100C-Discovery */

  STM_EVAL_LEDInit(LED3);

  STM_EVAL_LEDInit(LED4);

  /* SysTick end of count event each 1ms */

  RCC_GetClocksFreq(&RCC_Clocks);

  SysTick_Config(RCC_Clocks.HCLK_Frequency / 1000);

 /* Initiate Blink Speed variable */ 

  BlinkSpeed = 1;

  init_spi();

  //SPI_I2S_SendData(SPI1, 0x1); 

 /* Init lcd driver */

//  SSD1303_Init();

//  SSD1303_DrawPoint(3,3,1);

//  SSD1303_DrawPoint(5,5,0);

  STM_EVAL_LEDOn(LED4);

  Delay(1000);

  STM_EVAL_LEDOff(LED4);

  Delay(1000);

  while(1)

  {  

      /* Turn on LD4 Blue LED during 1s each time User button is pressed */

      STM_EVAL_LEDOn(LED4);

      //STM_EVAL_LEDOn(LED3);

      /* wait for 1s */

      Delay(300);

      /* Turn off LD4 Blue LED after 1s each time User button is pressed */

      STM_EVAL_LEDOff(LED4);

      Delay(300);

  }

}

/**

  * @brief  Inserts a delay time.

  * @param  nTime: specifies the delay time length, in 1 ms.

  * @retval None

  */

void Delay(__IO uint32_t nTime)

{

  TimingDelay = nTime;

  while(TimingDelay != 0);

}

/**

  * @brief  Decrements the TimingDelay variable.

  * @param  None

  * @retval None

  */

void TimingDelay_Decrement(void)

{

  if (TimingDelay != 0x00)

  { 

    TimingDelay--;

  }

}

void init_spi(void) {

	SPI_InitTypeDef  SPI_InitStructure;