void Set_VCOMH(unsigned char d)
{
// Set VCOMH Deselect Level
SSD1306SendCommand(0xDB);
SSD1306SendCommand(d);
// Default => 0x20 (0.77*VCC)
}
/* Function : setAddress(char page, char column)
* Description : sets position of LCD RAM
* Input : page (0-7), column (0-127)
* Output : none
*/
void setAddress( char page, char column )
{
char pageAddress[] = {SSD1306_PAGE_START_ADDRESS};
char columnAddress[] = { SSD1306_COLUMNADDRESS, SSD1306_COLUMNADDRESS_MSB, SSD1306_COLUMNADDRESS_LSB };
if (page > SSD1306_MAXROWS)
{
page = SSD1306_MAXROWS;
}
if (column > SSD1306_LCDWIDTH)
{
column = SSD1306_LCDWIDTH;
}
pageAddress[0] = SSD1306_PAGE_START_ADDRESS | (SSD1306_MAXROWS - page);
columnAddress[0] = SSD1306_COLUMNADDRESS;
columnAddress[1] = SSD1306_COLUMNADDRESS_MSB | column;
columnAddress[2] = SSD1306_COLUMNADDRESS_LSB;
//__no_operation();
SSD1306SendCommand(pageAddress, 1);
SSD1306SendCommand(columnAddress, 3);
}
void Set_Contrast_Control(unsigned char d)
{
// Set Contrast Control
SSD1306SendCommand(0x81);
// Default => 0x7F
SSD1306SendCommand(d);
}
void Set_Multiplex_Ratio(unsigned char d)
{
// Set Multiplex Ratio
SSD1306SendCommand(0xA8);
SSD1306SendCommand(d);
// Default => 0x3F (1/64 Duty)
}
void Set_Display_Offset(unsigned char d)
{
// Set Display Offset
SSD1306SendCommand(0xD3);
// Default => 0x00
SSD1306SendCommand(d);
}
void Set_Display_Clock(unsigned char d)
{
// Set Display Clock Divide Ratio / Oscillator Frequency
SSD1306SendCommand(0xD5);
SSD1306SendCommand(d);
// Default => 0x80
// D[3:0] => Display Clock Divider
// D[7:4] => Oscillator Frequency
}
void Set_Precharge_Period(unsigned char d)
{
// Set Pre-Charge Period
SSD1306SendCommand(0xD9);
SSD1306SendCommand(d);
// Default => 0x22 (2 Display Clocks [Phase 2] / 2 Display Clocks [Phase 1])
// D[3:0] => Phase 1 Period in 1~15 Display Clocks
// D[7:4] => Phase 2 Period in 1~15 Display Clocks
}
void Set_Charge_Pump(unsigned char d)
{
// Set Charge Pump
SSD1306SendCommand(0x8D);
// Default => 0x10.
SSD1306SendCommand(0x10|d);
// 0x10 (0x00) => Disable Charge Pump
// 0x14 (0x04) => Enable Charge Pump
}
void Set_Common_Config(unsigned char d)
{
// Set COM Pins Hardware Configuration
SSD1306SendCommand(0xDA);
SSD1306SendCommand(0x02|d);
// Default => 0x12 (0x10)
// Alternative COM Pin Configuration
// Disable COM Left/Right Re-Map
}
void Set_Page_Address(unsigned char a, unsigned char b)
{
// Set Page Address
SSD1306SendCommand(0x22);
// Default => 0x00 (Page Start Address)
SSD1306SendCommand(a);
// Default => 0x07 (Page End Address)
SSD1306SendCommand(b);
}
void Set_Column_Address(unsigned char a, unsigned char b)
{
// Set Column Address
SSD1306SendCommand(0x21);
// Default => 0x00 (Column Start Address)
SSD1306SendCommand(a);
// Default => 0x7F (Column End Address)
SD1306SendCommand(b);
}
/* Function : Set_Start_Column
* Description : Sets a start column to start writing at.
* Input : column[0-127]
* Output : None
*/
void Set_Start_Column(unsigned char d)
{
// Set Lower Column Start Address for Page Addressing Mode. Default => 0x00
SSD1306SendCommand(0x00+d%16);
// Set Higher Column Start Address for Page Addressing Mode. Default => 0x10
SSD1306SendCommand(0x10+d/16);
}
void Set_Addressing_Mode(unsigned char d)
{
// Set Memory Addressing Mode
SSD1306SendCommand(0x20);
// Default => 0x02
SSD1306SendCommand(d);
// 0x00 => Horizontal Addressing Mode
// 0x01 => Vertical Addressing Mode
// 0x02 => Page Addressing Mode
}
void Set_Inverse_Display(unsigned char d)
{
// Set Inverse Display On/Off
SSD1306SendCommand(0xA6|d);
// Default => 0xA6
// 0xA6 (0x00) => Normal Display
// 0xA7 (0x01) => Inverse Display On
}
void Set_Common_Remap(unsigned char d)
{
// Set COM Output Scan Direction
SSD1306SendCommand(0xC0|d);
// Default => 0xC0
// 0xC0 (0x00) => Scan from COM0 to 63
// 0xC8 (0x08) => Scan from COM63 to 0
}
void Set_Segment_Remap(unsigned char d)
{
// Set Segment Re-Map
SSD1306SendCommand(0xA0|d);
// Default => 0xA0
// 0xA0 (0x00) => Column Address 0 Mapped to SEG0
// 0xA1 (0x01) => Column Address 0 Mapped to SEG127
}
void Set_Entire_Display(unsigned char d)
{
// Set Entire Display On / Off
SSD1306SendCommand(0xA4|d);
// Default => 0xA4
// 0xA4 (0x00) => Normal Display
// 0xA5 (0x01) => Entire Display On
}
/* Function : SSD1306Init()
* Description : Initializes the OLED display
* Input : None
* Output : None
*/
void SSD1306Init( void )
{
OLED_DESELECT;
OLED_COMMAND;
OLED_RES_LOW;
// Delay for 200ms at 16Mhz
__delay_cycles(200000);
OLED_RES_HIGH;
__delay_cycles(100000);
//TRIGGER;
SSD1306SendCommand(SSD1306_init, sizeof SSD1306_init);
}
void Set_Start_Line(unsigned char d)
{
// Set Display Start Line
SSD1306SendCommand(0x40|d);
// Default => 0x40 (0x00)
}
/* Function : Set_Start_Page
* Description : Sets a start page to start writing at.
* Input : column[0-7]
* Output : None
*/
void Set_Start_Page(unsigned char d)
{
// Set Page Start Address for Page Addressing Mode. Default => 0xB0 (0x00)
SSD1306SendCommand(0xB0|d);
}
/* Function : SSD1306Init()
* Description : Initializes the OLED display
* Input : None
* Output : None
*/
void SSD1306Init( void )
{
SSD1306SendCommand(0xae);//--turn off oled panel
SSD1306SendCommand(0x00);//---set low column address
SSD1306SendCommand(0x10);//---set high column address
SSD1306SendCommand(0x40);//--set start line address
SSD1306SendCommand(0x81);//--set contrast control register
SSD1306SendCommand(0xcf);
SSD1306SendCommand(0xa1);//--set segment re-map 95 to 0
SSD1306SendCommand(0xa6);//--set normal display
SSD1306SendCommand(0xa8);//--set multiplex ratio(1 to 64)
SSD1306SendCommand(0x3f);//--1/64 duty
SSD1306SendCommand(0xd3);//-set display offset
SSD1306SendCommand(0x00);//-not offset
SSD1306SendCommand(0xd5);//--set display clock divide ratio/oscillator frequency
SSD1306SendCommand(0x80);//--set divide ratio
SSD1306SendCommand(0xd9);//--set pre-charge period
SSD1306SendCommand(0xf1);
SSD1306SendCommand(0xda);//--set com pins hardware configuration
SSD1306SendCommand(0x12);
SSD1306SendCommand(0xdb);//--set vcomh
SSD1306SendCommand(0x40);
SSD1306SendCommand(0x8d);//--set Charge Pump enable/disable
SSD1306SendCommand(0x14);//--set(0x10) disable
SSD1306SendCommand(0xaf);//--turn on oled panel
Fill_RAM(0x00); // Clear Screen
}
