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disp_oled_SSD131x.c
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disp_oled_SSD131x.c
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#include "config.h"
#ifdef LCD_USE_SSD131X_OLED_MODULE
#include <util/delay.h>
#include "i2c_master.h"
#define MODE_OLED_COMMAND 0x80
#define MODE_OLED_DATA 0x40
uint8_t _addr;
void sendData(unsigned char data);
void sendCommand(unsigned char command);
void send_string(const char *String);
void lcd_init(uint8_t lcd_addr) {
_addr = lcd_addr;
i2c_init();
// *** I2C initial *** //
_delay_ms(100);
sendCommand(0x2A); // **** Set "RE"=1 00101010B
sendCommand(0x71);
sendCommand(0x5C);
sendCommand(0x28);
sendCommand(0x08); // **** Set Sleep Mode On
sendCommand(0x2A); // **** Set "RE"=1 00101010B
sendCommand(0x79); // **** Set "SD"=1 01111001B
sendCommand(0xD5);
sendCommand(0x70);
sendCommand(0x78); // **** Set "SD"=0
sendCommand(0x08); // **** Set 5-dot, 3 or 4 line(0x09), 1 or 2 line(0x08)
sendCommand(0x06); // **** Set Com31-->Com0 Seg0-->Seg99
// **** Set OLED Characterization *** //
sendCommand(0x2A); // **** Set "RE"=1
sendCommand(0x79); // **** Set "SD"=1
// **** CGROM/CGRAM Management *** //
sendCommand(0x72); // **** Set ROM
sendCommand(0x00); // **** Set ROM A and 8 CGRAM
sendCommand(0xDA); // **** Set Seg Pins HW Config
sendCommand(0x10);
sendCommand(0x81); // **** Set Contrast
sendCommand(0xFF);
sendCommand(0xDB); // **** Set VCOM deselect level
sendCommand(0x30); // **** VCC x 0.83
sendCommand(0xDC); // **** Set gpio - turn EN for 15V generator on.
sendCommand(0x03);
sendCommand(0x78); // **** Exiting Set OLED Characterization
sendCommand(0x28);
sendCommand(0x2A);
//sendCommand(0x05); // **** Set Entry Mode
sendCommand(0x06); // **** Set Entry Mode
sendCommand(0x08);
sendCommand(0x28); // **** Set "IS"=0 , "RE" =0 //28
sendCommand(0x01);
sendCommand(0x80); // **** Set DDRAM Address to 0x80 (line 1 start)
_delay_ms(100);
sendCommand(0x0C); // **** Turn on Display
}
void sendData(uint8_t data)
{
i2c_start((_addr << 1) | I2C_WRITE);
i2c_write(MODE_OLED_DATA); // **** Set OLED Command mode
i2c_write(data);
i2c_stop();
}
void sendCommand(uint8_t command)
{
i2c_start((_addr << 1) | I2C_WRITE);
i2c_write(MODE_OLED_COMMAND); // **** Set OLED Command mode
i2c_write(command);
i2c_stop();
_delay_ms(10);
}
void lcd_cursor() {
sendCommand(0x0E); // **** Turn on Display, cursor
}
void lcd_noCursor(){
sendCommand(0x0C); // **** Turn on Display
}
void lcd_backlight(){
}
void lcd_noBacklight(){
}
void lcd_createChar(uint8_t location, uint8_t charmap[]){
}
void lcd_setCursor(uint8_t col, uint8_t row){
int row_offsets[] = { 0x00, 0x40 };
sendCommand(0x80 | (col + row_offsets[row]));
}
void lcd_write(uint8_t value){
sendData(value);
}
void lcd_print(char* msg) {
uint8_t v;
while((v = *msg++)) {
sendData(v);
}
//sendCommand(0xC0); // **** New Line
}
#endif