status += ssd1306_WriteCommand(hi2c, 0xAE);   // Display off
    status += ssd1306_WriteCommand(hi2c, 0x20);   // Set Memory Addressing Mode
    status += ssd1306_WriteCommand(hi2c, 0x10);   // 00,Horizontal Addressing Mode;01,Vertical Addressing Mode;10,Page Addressing Mode (RESET);11,Invalid
    status += ssd1306_WriteCommand(hi2c, 0xB0);   // Set Page Start Address for Page Addressing Mode,0-7
    status += ssd1306_WriteCommand(hi2c, 0xC0);   //Set COM Output Scan Direction    //C0 or C8 mirror  vertical
    status += ssd1306_WriteCommand(hi2c, 0x00);   // Set low column address
    status += ssd1306_WriteCommand(hi2c, 0x10);   // Set high column address
    status += ssd1306_WriteCommand(hi2c, 0x40);   // Set start line address
    status += ssd1306_WriteCommand(hi2c, 0x81);   // set contrast control register
    status += ssd1306_WriteCommand(hi2c, 0xFF);
    status += ssd1306_WriteCommand(hi2c, 0xA0);   //--set segment re-map 0 to 127  // A1 or A0 mirror horizontal
    status += ssd1306_WriteCommand(hi2c, 0xA6);   // Set normal display

    status += ssd1306_WriteCommand(hi2c, 0xA8);   // Set multiplex ratio(1 to 64)
    status += ssd1306_WriteCommand(hi2c, SSD1306_HEIGHT - 1); //0x3F

    status += ssd1306_WriteCommand(hi2c, 0xA4);   // 0xa4,Output follows RAM content;0xa5,Output ignores RAM content
    status += ssd1306_WriteCommand(hi2c, 0xD3);   // Set display offset
    status += ssd1306_WriteCommand(hi2c, 0x00);   // No offset
    status += ssd1306_WriteCommand(hi2c, 0xD5);   // Set display clock divide ratio/oscillator frequency
    status += ssd1306_WriteCommand(hi2c, 0xF0);   // Set divide ratio
    status += ssd1306_WriteCommand(hi2c, 0xD9);   // Set pre-charge period
    status += ssd1306_WriteCommand(hi2c, 0x22);

    status += ssd1306_WriteCommand(hi2c, 0xDA);   // Set com pins hardware configuration
    status += ssd1306_WriteCommand(hi2c, SSD1306_COM_LR_REMAP << 5 | SSD1306_COM_ALTERNATIVE_PIN_CONFIG << 4 | 0x02);   

    status += ssd1306_WriteCommand(hi2c, 0xDB);   // Set vcomh
    status += ssd1306_WriteCommand(hi2c, 0x20);   // 0x20,0.77xVcc
    status += ssd1306_WriteCommand(hi2c, 0x8D);   // Set DC-DC enable
    status += ssd1306_WriteCommand(hi2c, 0x14);   //
    status += ssd1306_WriteCommand(hi2c, 0xAF);   // Turn on SSD1306 panel

/////////////////////////////////////////////// курсор:
// 128x64 = 1024 байт: цифра 5 + пробел 1 = 6 байт. 128/6=21 цифры/строка +2.
void kursor(char Page) //Set Page Address
{
PORTB.5=0;         // D/C. 0 – Function, 1 – data. OLED 128x64   
SPDR=0b10110000|Page;  while(!(SPSR & (1<<7))); // Y - адрес 1011xxxx
SPDR=0b00010000;       while(!(SPSR & (1<<7))); // X - адрес 0001xxxx Hig

SPDR=0b00000010;  while(!(SPSR & (1<<7))); // X - адрес 0000xxxx Low (Начальное 2). // SH1106
//SPDR=0b00000000;  while(!(SPSR & (1<<7))); // X - адрес 0000xxxx Low (Начальное 0).// HDG12864F-1
PORTB.5=1;         // D/C. 0 – Function, 1 – data. OLED 128x64   
}

/////////////////////////////////////////////////////////// Режим OLED 128x64 -SH1106:
PORTB.7=0;         // SS OLED 128x64   
PORTB.5=0;         // D/C. 0 – Function, 1 – data. OLED 128x64     
SPDR=0xA8; while(!(SPSR & (1<<7))); // сколько строк будет использовано.
SPDR=0x3F; while(!(SPSR & (1<<7))); // (128x64) 64 - строки.
SPDR=0x81; while(!(SPSR & (1<<7))); // контрастность.
SPDR=kontr; while(!(SPSR & (1<<7)));// контрастность 0...255. -начальное 250.
SPDR=0xA1; while(!(SPSR & (1<<7))); // развёртка слева направо (>>).
///////////////////////////////////////////////////////////////////////////////
SPDR=0xC8; while(!(SPSR & (1<<7))); // развертка сверху вниз.  // SH1106
//SPDR=0xC0; while(!(SPSR & (1<<7)));// развертка снизу вверх.   // HDG12864F-1
///////////////////////////////////////////////////////////////////////////////
SPDR=0xDA; while(!(SPSR & (1<<7))); // развертка.
SPDR=0x12; while(!(SPSR & (1<<7))); // прогрессивная.
SPDR=0xD3; while(!(SPSR & (1<<7))); // смещение.
SPDR=0x00; while(!(SPSR & (1<<7))); // смещение 0.
SPDR=0x40; while(!(SPSR & (1<<7))); // 01xx xxxx - начальное строка 0.
SPDR=0xAF; while(!(SPSR & (1<<7))); // Display 0xAF - ON. 
//SPDR=0xAE; while(!(SPSR & (1<<7))); // Display 0xAE - OFF.
PORTB.5=1;         // D/C. 0 – Function, 1 – data. OLED 128x64     
PORTB.7=1;         // SS OLED 128x64