Code example for Newhaven OLED display NHD-1.5-128128UGC3
//--------------------------------------------------------------------------
//send Data to OLED
//--------------------------------------------------------------------------
void oled_Data_128128RGB(unsigned char Data)
{
int i;
GPIO_Write(GPIOB, Data);
for(i=0;i<10000;i++){;}
GPIO_SetBits(GPIOC, RS);
for(i=0;i<10000;i++){;}
GPIO_ResetBits(GPIOC, CS1);
for(i=0;i<10000;i++){;}
GPIO_ResetBits(GPIOC, RW);
for(i=0;i<10000;i++){;}
GPIO_SetBits(GPIOC, E1);
for(i=0;i<10000;i++){;}
GPIO_ResetBits(GPIOC, E1);
for(i=0;i<10000;i++){;}
GPIO_SetBits(GPIOC, RW);
for(i=0;i<10000;i++){;}
GPIO_SetBits(GPIOC, CS1);
for(i=0;i<10000;i++){;}
}
//--------------------------------------------------------------------------
//send Command to OLED
//--------------------------------------------------------------------------
void oled_Command_128128RGB(unsigned char Data)
{
int i;
GPIO_Write(GPIOB, Data);
for(i=0;i<4000;i++){;}
GPIO_ResetBits(GPIOC, RS);
for(i=0;i<4000;i++){;}
GPIO_ResetBits(GPIOC, CS1);
for(i=0;i<4000;i++){;}
GPIO_ResetBits(GPIOC, RW);
for(i=0;i<4000;i++){;}
GPIO_SetBits(GPIOC, E1);
for(i=0;i<4000;i++){;}
GPIO_ResetBits(GPIOC, E1);
for(i=0;i<4000;i++){;}
GPIO_SetBits(GPIOC, RW);
for(i=0;i<4000;i++){;}
GPIO_SetBits(GPIOC, CS1);
for(i=0;i<4000;i++){;}
}
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
// Initialization
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
void OLED_Init_128128RGB(void)
{
int i,j;
GPIO_ResetBits(GPIOC, RES);graphic_delay(500000);GPIO_SetBits(GPIOC, RES);graphic_delay(500000);UILCD_SetCursor(0,0);UILCD_DisplayString("GO ");
oled_Command_128128RGB(0xFD); //Command lock setting
oled_Data_128128RGB(0x12); //unlock
oled_Command_128128RGB(0xFD); //Command lock setting
oled_Data_128128RGB(0xB1); //unlock
oled_Command_128128RGB(0xAE);
oled_Command_128128RGB(0xB3); //clock & frequency
oled_Data_128128RGB(0xF1); //clock=Diviser+1 frequency=fh
oled_Command_128128RGB(0xCA); //Duty
oled_Data_128128RGB(0x7F); //OLED _END+1
oled_Command_128128RGB(0xA2); //Display offset
oled_Data_128128RGB(0x00);
oled_Command_128128RGB(0xA1); //Set display start line
oled_Data_128128RGB(0x00); //0x00 start line
oled_Command_128128RGB(0xA0); //Set Re-map, color depth
oled_Data_128128RGB(0xA0); //8-bit 262K
oled_Command_128128RGB(0xB5); //set GPIO
oled_Data_128128RGB(0x00); //disabled
oled_Command_128128RGB(0xAB); //Function Set
oled_Data_128128RGB(0x01); //8-bit interface, internal VDD regulator
oled_Command_128128RGB(0xB4); //set VSL
oled_Data_128128RGB(0xA0); //external VSL
oled_Data_128128RGB(0xB5);
oled_Data_128128RGB(0x55);
oled_Command_128128RGB(0xC1); //Set contrast current for A,B,C
oled_Data_128128RGB(0x8a); //Color A //8a
oled_Data_128128RGB(0x51); //Color B //51
oled_Data_128128RGB(0x8a); //Color C //8a
oled_Command_128128RGB(0xC7); //Set master contrast
oled_Data_128128RGB(0x0F); //
//oled_Command_128128RGB(0xB9); //use linear grayscale LUT
oled_Command_128128RGB(0xB8);
oled_Data_128128RGB(0x02);
oled_Data_128128RGB(0x03);
oled_Data_128128RGB(0x04);
oled_Data_128128RGB(0x05);
oled_Data_128128RGB(0x06);
oled_Data_128128RGB(0x07);
oled_Data_128128RGB(0x08);
oled_Data_128128RGB(0x09);
oled_Data_128128RGB(0x0a);
oled_Data_128128RGB(0x0b);
oled_Data_128128RGB(0x0c);
oled_Data_128128RGB(0x0d);
oled_Data_128128RGB(0x0e);
oled_Data_128128RGB(0x0f);
oled_Data_128128RGB(0x10);
oled_Data_128128RGB(0x11);
oled_Data_128128RGB(0x12);
oled_Data_128128RGB(0x13);
oled_Data_128128RGB(0x15);
oled_Data_128128RGB(0x17);
oled_Data_128128RGB(0x19);
oled_Data_128128RGB(0x1b);
oled_Data_128128RGB(0x1d);
oled_Data_128128RGB(0x1f);
oled_Data_128128RGB(0x21);
oled_Data_128128RGB(0x23);
oled_Data_128128RGB(0x25);
oled_Data_128128RGB(0x27);
oled_Data_128128RGB(0x2a);
oled_Data_128128RGB(0x2d);
oled_Data_128128RGB(0x30);
oled_Data_128128RGB(0x33);
oled_Data_128128RGB(0x36);
oled_Data_128128RGB(0x39);
oled_Data_128128RGB(0x3c);
oled_Data_128128RGB(0x3f);
oled_Data_128128RGB(0x42);
oled_Data_128128RGB(0x45);
oled_Data_128128RGB(0x48);
oled_Data_128128RGB(0x4c);
oled_Data_128128RGB(0x50);
oled_Data_128128RGB(0x54);
oled_Data_128128RGB(0x58);
oled_Data_128128RGB(0x5c);
oled_Data_128128RGB(0x60);
oled_Data_128128RGB(0x64);
oled_Data_128128RGB(0x68);
oled_Data_128128RGB(0x6c);
oled_Data_128128RGB(0x70);
oled_Data_128128RGB(0x74);
oled_Data_128128RGB(0x78);
oled_Data_128128RGB(0x7d);
oled_Data_128128RGB(0x82);
oled_Data_128128RGB(0x87);
oled_Data_128128RGB(0x8c);
oled_Data_128128RGB(0x91);
oled_Data_128128RGB(0x96);
oled_Data_128128RGB(0x9b);
oled_Data_128128RGB(0xa0);
oled_Data_128128RGB(0xa5);
oled_Data_128128RGB(0xaa);
oled_Data_128128RGB(0xaf);
oled_Data_128128RGB(0xb4);
oled_Command_128128RGB(0xB1); //Set pre & dis-charge
oled_Data_128128RGB(0x32); //pre=1h, dis=1h
oled_Command_128128RGB(0xBB); //Set precharge voltage of color A,B,C
oled_Data_128128RGB(0x07); //
oled_Command_128128RGB(0xB2); //display enhancement
oled_Data_128128RGB(0xa4);
oled_Data_128128RGB(0x00);
oled_Data_128128RGB(0x00);
oled_Command_128128RGB(0xB6); //precharge period
oled_Data_128128RGB(0x01);
oled_Command_128128RGB(0xBE); //Set VcomH
oled_Data_128128RGB(0x07);
oled_Command_128128RGB(0xA6); //Normal display
oled_Command_128128RGB(0x15); //set column start and end addresses
oled_Data_128128RGB(0x00); //
oled_Data_128128RGB(0x7F); //
oled_Command_128128RGB(0x75); //set row start and end addresses
oled_Data_128128RGB(0x00); //
oled_Data_128128RGB(0x7F); //
oled_Command_128128RGB(0x5C); //write to RAM command
for(i=0;i<128;i++)
{
for(j=0;j<128;j++)
{
oled_Data_128128RGB(0x00);
oled_Data_128128RGB(0x00);
oled_Data_128128RGB(0x00);
}
}
oled_Command_128128RGB(0xAF); //Display on
}
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
// Demonstration
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
int oled_128128RGB(void)
{
char filename[17] = "OLED_128128_";char filetype[4] = ".bmp";char filenumber[1] = "0";
int result,i,j,k,counter;char image = 0x30;char write_data,datum;UINT blen = sizeof(Buff);memset(Buff,3,sizeof(Buff));
int column, row;
unsigned char red,green1,green2,blue,byte1,byte2;
filename[12]='\0';filenumber[0] = image;strncat(filename,filenumber,1);strncat(filename,filetype,4);
GPIO_SetBits(GPIOB, BS1);
GPIO_ResetBits(GPIOB, BS0);
OLED_Init_128128RGB();
while(1){
UILCD_SetCursor(0,0);UILCD_DisplayString("Reading SD Card ");UILCD_SetCursor(1,0);UILCD_DisplayString(" ");UILCD_SetCursor(1,0);UILCD_DisplayString(filename);
if(openSD(filename)==0x30){;}seekSD(54);
column = 0x00;
byte1 = 0x00;
byte2 = 0x00;
oled_Command_128128RGB(0x15); //set column start and end addresses
oled_Data_128128RGB(column); //
oled_Data_128128RGB(0x7F); //
oled_Command_128128RGB(0x75); //set row start and end addresses
oled_Data_128128RGB(0x00); //
oled_Data_128128RGB(0x7F); //
oled_Command_128128RGB(0x5C); //write to RAM command
for (i=0;i<16384;i++) //for each 24-bit pixel...128*128=16384
{
f_read(&File1, &red, 1, &blen); //read the red 8-bits
f_read(&File1, &green1, 1, &blen); //read the green 8-bits
f_read(&File1, &blue, 1, &blen); //read the blue 8-bits
/*red = (red & 0xF8); //keep R7..R3 in D7..D3
green2 = (green1 << 3) & 0xE0; //shift up for G4..G2 in D7..D5
green1 = (green1 >> 5) & 0x07; //shift down for G7..G5 in D2..D0
blue = (blue >> 3) & 0x1F; //shift down for B7..B3 in D4..D0
byte1 = (red | green1);
byte2 = (green2 | blue);
oled_Data_128128RGB(byte1);
oled_Data_128128RGB(byte2);*/
red = red >> 2;
green1 = green1 >> 2;
blue = blue >> 2;
oled_Data_128128RGB(red);
oled_Data_128128RGB(green1);
oled_Data_128128RGB(blue);
}
result = f_close(&File1);if (result != FR_OK) {UILCD_SetCursor(0,0);UILCD_DisplayString("File not Closed ");while(1);return result;}
/*graphic_delay(555555);
oled_Command_128128RGB(0x96);
oled_Data_128128RGB(0x01);
oled_Data_128128RGB(0x00);
oled_Data_128128RGB(0x7F);
oled_Data_128128RGB(0x00);
oled_Data_128128RGB(0x01);
oled_Command_128128RGB(0x9F);*/
UILCD_SetCursor(0,0);UILCD_DisplayString("Press SEL button");UILCD_SetCursor(1,0);UILCD_DisplayString("for next file. ");
while(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_2)==1){;}
//oled_Command_128128RGB(0x9E);
image++;
if(image==0x3A){image=0x41;}
filename[12]='\0';
filenumber[0] = image;
strncat(filename,filenumber,1);
strncat(filename,filetype,4);
if(openSD(filename)==0x30)
{image=0x30;}
filename[12]='\0';
filenumber[0] = image;
strncat(filename,filenumber,1);
strncat(filename,filetype,4);
}return 1;}