text: /*
   * o12864.c
   *
   *  Created on: 2019��4��27��
   *      Author: TONY
   */
  
  /****************************************************************************/
  #include "o12864.h"
  //#include "stdlib.h"
  //#include "oledfont.h"
  extern unsigned char const F6x8[92][6];
  extern const unsigned char *F8X16;
  extern const unsigned char **Hzk;
  
  
  
  //#include "delay.h"
  //OLED���Դ�
  //��Ÿ�ʽ����.
  //[0]0 1 2 3 ... 127
  //[1]0 1 2 3 ... 127
  //[2]0 1 2 3 ... 127
  //[3]0 1 2 3 ... 127
  //[4]0 1 2 3 ... 127
  //[5]0 1 2 3 ... 127
  //[6]0 1 2 3 ... 127
  //[7]0 1 2 3 ... 127
  #define GPIO_O12864_PIN_SEL  ((1ULL<<42) | (1ULL<<41)|(1ULL<<40)|(1ULL<<39)|(1ULL<<38)    )
  void delay_ms(unsigned int ms) {
    int i;
  
    vTaskDelay(ms / portTICK_PERIOD_MS);
    // __delay_cycles(200);
  }
  
  //��SSD1306д��һ���ֽڡ�
  //dat:Ҫд�������/����
  //cmd:����/�����־ 0,��ʾ����;1,��ʾ����;
  void OLED_WR_Byte(u8 dat, u8 cmd) {
    u8 i;
    if (cmd)
      OLED_DC_Set();
  
    else
      OLED_DC_Clr();
    OLED_CS_Clr();
    //  delay_ms(1);
    for (i = 0; i < 8; i++) {
      OLED_SCLK_Clr();
      // delay_ms(1);
      if (dat & 0x80) {
        OLED_SDIN_Set();
        //  delay_ms(1);
      } else
        OLED_SDIN_Clr();
      // delay_ms(1);
      OLED_SCLK_Set();
      //delay_ms(1);
      dat <<= 1;
    }
    OLED_CS_Set();
    OLED_DC_Set();
  }
  
  void OLED_Set_Pos(unsigned char x, unsigned char y) {
    OLED_WR_Byte(0xb0 + ((y >> 3) & 0xf), OLED_CMD);
    OLED_WR_Byte(((x & 0xf0) >> 4) | 0x10, OLED_CMD);
    OLED_WR_Byte((x & 0x0f) | 0x01, OLED_CMD);
  }
  //����OLED��ʾ
  void OLED_Display_On(void) {
    OLED_WR_Byte(0X8D, OLED_CMD);  //SET DCDC����
    OLED_WR_Byte(0X14, OLED_CMD);  //DCDC ON
    OLED_WR_Byte(0XAF, OLED_CMD);  //DISPLAY ON
  }
  //�ر�OLED��ʾ
  void OLED_Display_Off(void) {
    OLED_WR_Byte(0X8D, OLED_CMD);  //SET DCDC����
    OLED_WR_Byte(0X10, OLED_CMD);  //DCDC OFF
    OLED_WR_Byte(0XAE, OLED_CMD);  //DISPLAY OFF
  }
  //��������,������,������Ļ�Ǻ�ɫ��!��û����һ��!!!
  void OLED_Clear(void) {
    u8 i, n;
    for (i = 0; i < 8; i++) {
      OLED_WR_Byte(0xb0 + i, OLED_CMD);    //����ҳ��ַ��0~7��
      OLED_WR_Byte(0x00, OLED_CMD);      //������ʾλ�á��е͵�ַ
      OLED_WR_Byte(0x10, OLED_CMD);      //������ʾλ�á��иߵ�ַ
      for (n = 0; n < 131; n++)OLED_WR_Byte(0, OLED_DATA);
    } //������ʾ
  }
  
  //��ָ��λ����ʾһ���ַ�,���������ַ�
  //x:0~127
  //y:0~63
  //mode:0,������ʾ;1,������ʾ
  //size:ѡ������ 16/12
  void OLED_ShowChar(u8 x, u8 y, u8 chr) {
    OLED_Set_Pos(0, 0);
    unsigned char c = 0, i = 0;
    c = chr - ' ';//�õ�ƫ�ƺ��ֵ
    if (x > Max_Column - 1) {
      x = 0;
      y = y + 2;
    }
    if (SIZE == 16) {
      OLED_Set_Pos(x, y);
      for (i = 0; i < 8; i++)
        OLED_WR_Byte(F8X16[c * 16 + i], OLED_DATA);
      OLED_Set_Pos(x, y + 8);
      for (i = 0; i < 8; i++)
        OLED_WR_Byte(F8X16[c * 16 + i + 8], OLED_DATA);
    } else {
      OLED_Set_Pos(x, y + 1);
      for (i = 0; i < 6; i++)
        OLED_WR_Byte(F6x8[c][i], OLED_DATA);
  
    }
  }
  //m^n����
  u32 oled_pow(u8 m, u8 n) {
    u32 result = 1;
    while (n--)result *= m;
    return result;
  }
  //��ʾ2������
  //x,y :�������
  //len :���ֵ�λ��
  //size:�����С
  //mode:ģʽ   0,���ģʽ;1,����ģʽ
  //num:��ֵ(0~4294967295);
  void OLED_ShowNum(u8 x, u8 y, u32 num, u8 len, u8 size2) {
    u8 t, temp;
    u8 enshow = 0;
    for (t = 0; t < len; t++) {
      temp = (num / oled_pow(10, len - t - 1)) % 10;
      if (enshow == 0 && t < (len - 1)) {
        if (temp == 0) {
          OLED_ShowChar(x + (size2 / 2) * t, y, ' ');
          continue;
        } else enshow = 1;
  
      }
      OLED_ShowChar(x + (size2 / 2) * t, y, temp + '0');
    }
  }
  //��ʾһ���ַ��Ŵ�
  void OLED_ShowString(u8 x, u8 y, u8 *chr) {
    unsigned char j = 0;
    while (chr[j] != '\0') {
      OLED_ShowChar(x, y, chr[j]);
      x += 8;
      if (x > 120) {
        x = 0;
        y += 16;
      }
      j++;
    }
  }
  //��ʾ����
  void OLED_ShowCHinese(u8 x, u8 y, u8 no) {
    u8 t, adder = 0;
    OLED_Set_Pos(x, y);
    for (t = 0; t < 16; t++) {
      OLED_WR_Byte(Hzk[2 * no][t], OLED_DATA);
      adder += 1;
    }
    OLED_Set_Pos(x, y + 1);
    for (t = 0; t < 16; t++) {
      OLED_WR_Byte(Hzk[2 * no + 1][t], OLED_DATA);
      adder += 1;
    }
  }
  /***********������������ʾ��ʾBMPͼƬ128��64��ʼ������(x,y),x�ķ�Χ0��127��yΪҳ�ķ�Χ0��7*****************/
  void OLED_DrawBMP(unsigned char x0, unsigned char y0, unsigned char x1, unsigned char y1, unsigned char BMP[]) {
    unsigned int j = 0;
    unsigned char x, y;
  
    if (y1 % 8 == 0) y = y1 / 8;
    else y = y1 / 8 + 1;
    for (y = y0; y < y1; y++) {
      OLED_Set_Pos(x0, y);
      for (x = x0; x < x1; x++) {
        OLED_WR_Byte(BMP[j++], OLED_DATA);
      }
    }
  }
  
  //��ʼ��SSD1306
  void OLED_Init(void) {
    gpio_config_t io_conf;
    //disable interrupt
    io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
    //set as output mode
    io_conf.mode = GPIO_MODE_OUTPUT;
    //bit mask of the pins that you want to set,e.g.GPIO18/19
    io_conf.pin_bit_mask = GPIO_O12864_PIN_SEL;
    gpio_config(&io_conf);
  
    OLED_RST_Set();
    delay_ms(100);
    OLED_RST_Clr();
    delay_ms(100);
    OLED_RST_Set();
    /*
    OLED_WR_Byte(0xAE,OLED_CMD);//--turn off oled panel
    OLED_WR_Byte(0x00,OLED_CMD);//---set low column address
    OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
    OLED_WR_Byte(0x40,OLED_CMD);//--set start line address  Set Mapping RAM Display Start Line (0x00~0x3F)
    OLED_WR_Byte(0x81,OLED_CMD);//--set contrast control register
    OLED_WR_Byte(0xCF,OLED_CMD); // Set SEG Output Current Brightness
    OLED_WR_Byte(0xA1,OLED_CMD);//--Set SEG/Column Mapping     0xa0���ҷ��� 0xa1����
    OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction   0xc0���·��� 0xc8����
    OLED_WR_Byte(0xA6,OLED_CMD);//--set normal display
    OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
    OLED_WR_Byte(0x3f,OLED_CMD);//--1/64 duty
    OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset   Shift Mapping RAM Counter (0x00~0x3F)
    OLED_WR_Byte(0x00,OLED_CMD);//-not offset
    OLED_WR_Byte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency
    OLED_WR_Byte(0x80,OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
    OLED_WR_Byte(0xD9,OLED_CMD);//--set pre-charge period
    OLED_WR_Byte(0xF1,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
    OLED_WR_Byte(0xDA,OLED_CMD);//--set com pins hardware configuration
    OLED_WR_Byte(0x12,OLED_CMD);
    OLED_WR_Byte(0xDB,OLED_CMD);//--set vcomh
    OLED_WR_Byte(0x40,OLED_CMD);//Set VCOM Deselect Level
    OLED_WR_Byte(0x20,OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)
    OLED_WR_Byte(0x02,OLED_CMD);//
    OLED_WR_Byte(0x8D,OLED_CMD);//--set Charge Pump enable/disable
    OLED_WR_Byte(0x14,OLED_CMD);//--set(0x10) disable
    OLED_WR_Byte(0xA4,OLED_CMD);// Disable Entire Display On (0xa4/0xa5)
    OLED_WR_Byte(0xA6,OLED_CMD);// Disable Inverse Display On (0xa6/a7)
    OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
    */
  
    OLED_WR_Byte(0xAE, OLED_CMD);//--turn off oled panel
    OLED_WR_Byte(0x00, OLED_CMD);//---set low column address
    OLED_WR_Byte(0x10, OLED_CMD);//---set high column address
    OLED_WR_Byte(0x40, OLED_CMD);//--set start line address  Set Mapping RAM Display Start Line (0x00~0x3F)
    OLED_WR_Byte(0x81, OLED_CMD);//--set contrast control register
    OLED_WR_Byte(0xCF, OLED_CMD); // Set SEG Output Current Brightness
    OLED_WR_Byte(0xA1, OLED_CMD);//--Set SEG/Column Mapping     0xa0���ҷ��� 0xa1����
    OLED_WR_Byte(0xC8, OLED_CMD);//Set COM/Row Scan Direction   0xc0���·��� 0xc8����
    OLED_WR_Byte(0xA6, OLED_CMD);//--set normal display
    OLED_WR_Byte(0xA8, OLED_CMD);//--set multiplex ratio(1 to 64)
    OLED_WR_Byte(0x3f, OLED_CMD);//--1/64 duty
    OLED_WR_Byte(0xD3, OLED_CMD);//-set display offset   Shift Mapping RAM Counter (0x00~0x3F)
    OLED_WR_Byte(0x00, OLED_CMD);//-not offset
    OLED_WR_Byte(0xd5, OLED_CMD);//--set display clock divide ratio/oscillator frequency
    OLED_WR_Byte(0x80, OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
    OLED_WR_Byte(0xD9, OLED_CMD);//--set pre-charge period
    OLED_WR_Byte(0xF1, OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
    OLED_WR_Byte(0xDA, OLED_CMD);//--set com pins hardware configuration
    OLED_WR_Byte(0x12, OLED_CMD);
    OLED_WR_Byte(0xDB, OLED_CMD);//--set vcomh
    OLED_WR_Byte(0x40, OLED_CMD);//Set VCOM Deselect Level
    OLED_WR_Byte(0x20, OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)
    OLED_WR_Byte(0x02, OLED_CMD);//
    OLED_WR_Byte(0x8D, OLED_CMD);//--set Charge Pump enable/disable
    OLED_WR_Byte(0x14, OLED_CMD);//--set(0x10) disable
    OLED_WR_Byte(0xA4, OLED_CMD);// Disable Entire Display On (0xa4/0xa5)
    OLED_WR_Byte(0xA6, OLED_CMD);// Disable Inverse Display On (0xa6/a7)
    OLED_WR_Byte(0xAF, OLED_CMD);//--turn on oled panel
  
    OLED_WR_Byte(0xAF, OLED_CMD); /*display ON*/
    OLED_Clear();
    OLED_Set_Pos(0, 0);
  }
  
  