關於spi介面的lcd初始化
阿新 • • 發佈：2019-01-11
void LCDICINIT(void)
{
LCDSPI_InitCMD(0xE4);LCDSPI_InitDAT(0x02); //
LCDSPI_InitCMD(0xE5);LCDSPI_InitDAT(0x10); //
LCDSPI_InitCMD(0xE6);LCDSPI_InitDAT(0x10); //
LCDSPI_InitCMD(0xE7);LCDSPI_InitDAT(0x02); //
//Gamma 2.2 Setting
LCDSPI_InitCMD(0x40);LCDSPI_InitDAT(0x01); //
LCDSPI_InitCMD(0x41);LCDSPI_InitDAT(0x15); //
LCDSPI_InitCMD(0x42);LCDSPI_InitDAT(0x14); //
LCDSPI_InitCMD(0x43);LCDSPI_InitDAT(0x30); //
LCDSPI_InitCMD(0x44);LCDSPI_InitDAT(0x30); //
LCDSPI_InitCMD(0x45);LCDSPI_InitDAT(0x3C); //
LCDSPI_InitCMD(0x46);LCDSPI_InitDAT(0x10); //
LCDSPI_InitCMD(0x47);LCDSPI_InitDAT(0x6E); //
LCDSPI_InitCMD(0x48);LCDSPI_InitDAT(0x07); //
LCDSPI_InitCMD(0x49);LCDSPI_InitDAT(0x0F); //
LCDSPI_InitCMD(0x4A);LCDSPI_InitDAT(0x12); //
LCDSPI_InitCMD(0x4B);LCDSPI_InitDAT(0x12); //
LCDSPI_InitCMD(0x4C);LCDSPI_InitDAT(0x19); //
LCDSPI_InitCMD(0x50);LCDSPI_InitDAT(0x03); //
LCDSPI_InitCMD(0x51);LCDSPI_InitDAT(0x0F); //
LCDSPI_InitCMD(0x52);LCDSPI_InitDAT(0x0F); //
LCDSPI_InitCMD(0x53);LCDSPI_InitDAT(0x2B); //
LCDSPI_InitCMD(0x54);LCDSPI_InitDAT(0x2A); //
LCDSPI_InitCMD(0x55);LCDSPI_InitDAT(0x3E); //
LCDSPI_InitCMD(0x56);LCDSPI_InitDAT(0x11); //
LCDSPI_InitCMD(0x57);LCDSPI_InitDAT(0x6F); //
LCDSPI_InitCMD(0x58);LCDSPI_InitDAT(0x06); //
LCDSPI_InitCMD(0x59);LCDSPI_InitDAT(0x0D); //
LCDSPI_InitCMD(0x5A);LCDSPI_InitDAT(0x0D); //
LCDSPI_InitCMD(0x5B);LCDSPI_InitDAT(0x10); //
LCDSPI_InitCMD(0x5C);LCDSPI_InitDAT(0x18); //
LCDSPI_InitCMD(0x5D);LCDSPI_InitDAT(0xCC); //
//Power Voltage Setting
LCDSPI_InitCMD(0x1B);LCDSPI_InitDAT(0x1B); //VRH=4.65V
LCDSPI_InitCMD(0x1A);LCDSPI_InitDAT(0x01); //BT (VGH~15V);LCDSPI_InitDAT(VGL~-10V);LCDSPI_InitDAT(DDVDH~5V)
LCDSPI_InitCMD(0x24);LCDSPI_InitDAT(0x40); //VMH(VCOM High voltage ~3.2V)
LCDSPI_InitCMD(0x25);LCDSPI_InitDAT(0x54); //VML(VCOM Low voltage -1.2V)
LCDSPI_InitCMD(0x23);LCDSPI_InitDAT(0xA8); //for Flicker adjust //can reload from OTP
//240x320 window setting
LCDSPI_InitCMD(0x0002);LCDSPI_InitDAT(0x0000);
LCDSPI_InitCMD(0x0003);LCDSPI_InitDAT(0x0000);
LCDSPI_InitCMD(0x0004);LCDSPI_InitDAT(0x0000);
LCDSPI_InitCMD(0x0005);LCDSPI_InitDAT(0x00EF);
LCDSPI_InitCMD(0x0006);LCDSPI_InitDAT(0x0000);
LCDSPI_InitCMD(0x0007);LCDSPI_InitDAT(0x0000);
LCDSPI_InitCMD(0x0008);LCDSPI_InitDAT(0x0001);
LCDSPI_InitCMD(0x0009);LCDSPI_InitDAT(0x003F);
//Power on Setting
LCDSPI_InitCMD(0x18);LCDSPI_InitDAT(0x88); //I/P_RADJ);LCDSPI_InitDAT(N/P_RADJ);LCDSPI_InitDAT( Normal mode 60Hz
LCDSPI_InitCMD(0x19);LCDSPI_InitDAT(0x01); //OSC_EN='1');LCDSPI_InitDAT( start Osc
LCDSPI_InitCMD(0x01);LCDSPI_InitDAT(0x00); //DP_STB='0');LCDSPI_InitDAT( out deep sleep
LCDSPI_InitCMD(0x1F);LCDSPI_InitDAT(0x88);// GAS=1);LCDSPI_InitDAT( VOMG=00);LCDSPI_InitDAT( PON=0);LCDSPI_InitDAT( DK=1);LCDSPI_InitDAT( XDK=0);LCDSPI_InitDAT( DVDH_TRI=0);LCDSPI_InitDAT( STB=0
Delayms(5);
LCDSPI_InitCMD(0x1F);LCDSPI_InitDAT(0x80);// GAS=1);LCDSPI_InitDAT( VOMG=00);LCDSPI_InitDAT( PON=0);LCDSPI_InitDAT( DK=0);LCDSPI_InitDAT( XDK=0);LCDSPI_InitDAT( DVDH_TRI=0);LCDSPI_InitDAT( STB=0
Delayms(5);
LCDSPI_InitCMD(0x1F);LCDSPI_InitDAT(0x90);// GAS=1);LCDSPI_InitDAT( VOMG=00);LCDSPI_InitDAT( PON=1);LCDSPI_InitDAT( DK=0);LCDSPI_InitDAT( XDK=0);LCDSPI_InitDAT( DVDH_TRI=0);LCDSPI_InitDAT( STB=0
Delayms(5);
LCDSPI_InitCMD(0x1F);LCDSPI_InitDAT(0xD4);// GAS=1);LCDSPI_InitDAT( VOMG=10);LCDSPI_InitDAT( PON=1);LCDSPI_InitDAT( DK=0);LCDSPI_InitDAT( XDK=0);LCDSPI_InitDAT( DDVDH_TRI=0);LCDSPI_InitDAT( STB=0
Delayms(5);
//262k/65k color selection
//LCDSPI_InitCMD(0x17);LCDSPI_InitDAT(0x66); //default 0x60 262k color // 0x50 65k color
LCDSPI_InitCMD(0x17);LCDSPI_InitDAT(0x60); //changed by ycj
LCDSPI_InitCMD(0x31);LCDSPI_InitDAT(0x02);
Delayms(20);//0x0e
LCDSPI_InitCMD(0x32);LCDSPI_InitDAT(0x06);//0x0e
LCDSPI_InitCMD(0x33);LCDSPI_InitDAT(0x02);
LCDSPI_InitCMD(0x34);LCDSPI_InitDAT(0x02);
//Display ON Setting
LCDSPI_InitCMD(0x28);LCDSPI_InitDAT(0x38); //GON=1);LCDSPI_InitDAT( DTE=1);LCDSPI_InitDAT( D=1000
Delayms(40);
LCDSPI_InitCMD(0x28);LCDSPI_InitDAT(0x3C); //GON=1);LCDSPI_InitDAT( DTE=1);LCDSPI_InitDAT( D=1100
Delayms(40);
LCDSPI_InitCMD(0x36);LCDSPI_InitDAT(0x03); ////SS_P);LCDSPI_InitDAT( GS_P);LCDSPI_InitDAT(REV_P);LCDSPI_InitDAT(BGR_P)
// add ycj
LCDSPI_InitCMD(0x0090);LCDSPI_InitDAT(0x007F);
Delayms(40);
LCDSPI_InitCMD(0x0026);LCDSPI_InitDAT(0x0004);
Delayms(40);
LCDSPI_InitCMD(0x0026);LCDSPI_InitDAT(0x0024);
Delayms(40);
LCDSPI_InitCMD(0x0026);LCDSPI_InitDAT(0x002C);
Delayms(40);
LCDSPI_InitCMD(0x0026);LCDSPI_InitDAT(0x003C);
Delayms(40);
//Lcd_EnvidOnOff(1);
//s2440LCD->LCDCON1 |= 1; // Enable LCD output
// RETAILMSG(1, (TEXT("--S3C2440DISP::InitDisplay done \r\n")));
}
void LCDSPI_InitCMD( unsigned short data) //LCDVF0=CS; LCDVF1=SDI; LCDVF2=SCK
{
unsigned short i,MB=0X7400;
// MB=MB|data;
CS(0);
Delayus(10);
SCLK(1);
SDI(1);
//Delayus(100);
//SCLK(1);
Delayus(100);//Delayus(120);
for(i=0;i<8;i++)
{
SCLK(0);
if(MB&0x8000)
SDI(1);
else
SDI(0);
Delayus(100);
SCLK(1);
Delayus(100);//Delayus(120);
//SCLK(0);
MB<<=1;
}
MB=data;
for(i=0;i<8;i++)
{
SCLK(0);
if(MB&0x80)
SDI(1);
else
SDI(0);
Delayus(100);
SCLK(1);
Delayus(100);//Delayus(120);
//SCLK(0);
MB<<=1;
}
CS(1);
}
void LCDSPI_InitDAT(unsigned short data)
{
unsigned short i,MB=0x7600;
// MB=MB|data;
CS(0);
Delayus(10);
SCLK(1);
SDI(1);
//Delayus(100);
//SCLK(1);
Delayus(100);//Delayus(120);
for(i=0;i<8;i++)
{
SCLK(0);
if(MB&0x8000)
SDI(1);
else
SDI(0);
Delayus(100);
SCLK(1);
Delayus(100);//Delayus(120);
//SCLK(0);
MB<<=1;
}
MB=data;
for(i=0;i<8;i++)
{
SCLK(0);
if(MB&0x80)
SDI(1);
else
SDI(0);
Delayus(100);
SCLK(1);
Delayus(100);//Delayus(120);
//SCLK(0);
MB<<=1;
}
CS(1);
}
void CS( unsigned short flag)
{//GPG3
volatile S3C2440A_IOPORT_REG *s2440IOP=NULL;
s2440IOP = (volatile S3C2440A_IOPORT_REG *) VirtualAlloc(0,sizeof(S3C2440A_IOPORT_REG),MEM_RESERVE, PAGE_NOACCESS);
if(s2440IOP == NULL) {
RETAILMSG(1,(TEXT("For s2440IOP: VirtualAlloc 2 failed!\r\n")));
}
else {
if(!VirtualCopy((PVOID)s2440IOP,(PVOID)(S3C2440A_BASE_REG_PA_IOPORT >> 8),sizeof(S3C2440A_IOPORT_REG),PAGE_PHYSICAL | PAGE_READWRITE | PAGE_NOCACHE )) {
RETAILMSG(1,(TEXT("For s2440IOP: VirtualCopy 2 failed!\r\n")));
}
}
//volatile S3C2440A_IOPORT_REG *s2440IOP = (S3C2440A_IOPORT_REG *)OALPAtoVA(S3C2440A_BASE_REG_PA_IOPORT, FALSE);
if(~((s2440IOP->GPGUP)&(1<<7)))
s2440IOP->GPGUP=(s2440IOP->GPGUP)&(~(1<<3))|(1<<3); // Pull-up disable
if(flag)
{
s2440IOP->GPGDAT=((s2440IOP->GPGDAT)&(~(1<<3)))|(1<<3);
}
else
{
s2440IOP->GPGDAT=(s2440IOP->GPGDAT)&(~(1<<3));
}
if((~((s2440IOP->GPGCON)&(0x3<<6)))!=(1<<6))
s2440IOP->GPGCON=(s2440IOP->GPGCON)&(~(0x3<<6))|(1<<6); //output enable 1
}
static void SCLK( unsigned short flag)
{//GPG7
//volatile S3C2440A_IOPORT_REG *s2440IOP = (S3C2440A_IOPORT_REG *)OALPAtoVA(S3C2440A_BASE_REG_PA_IOPORT, FALSE);
volatile S3C2440A_IOPORT_REG *s2440IOP=NULL;
s2440IOP = (volatile S3C2440A_IOPORT_REG *) VirtualAlloc(0,sizeof(S3C2440A_IOPORT_REG),MEM_RESERVE, PAGE_NOACCESS);
if(s2440IOP == NULL) {
RETAILMSG(1,(TEXT("For s2440IOP: VirtualAlloc 3 failed!\r\n")));
}
else {
if(!VirtualCopy((PVOID)s2440IOP,(PVOID)(S3C2440A_BASE_REG_PA_IOPORT >> 8),sizeof(S3C2440A_IOPORT_REG),PAGE_PHYSICAL | PAGE_READWRITE | PAGE_NOCACHE )) {
RETAILMSG(1,(TEXT("For s2440IOP: VirtualCopy 3 failed!\r\n")));
}
}
if(~((s2440IOP->GPGUP)&(1<<7)))
s2440IOP->GPGUP=(s2440IOP->GPGUP)&(~(1<<7))|(1<<7); // Pull-up disable
if(flag)
{
s2440IOP->GPGDAT=(s2440IOP->GPGDAT)&(~(1<<7))|(1<<7);
}
else
{
(s2440IOP->GPGDAT)=(s2440IOP->GPGDAT)&(~(1<<7));
}
if((~((s2440IOP->GPGCON)&(0x3<<14)))!=(1<<14))
s2440IOP->GPGCON=(s2440IOP->GPGCON)&(~(0x3<<14))|(1<<14); //output enable 1
}
static void SDI( unsigned short flag)
{//GPG6
//volatile S3C2440A_IOPORT_REG *s2440IOP = (S3C2440A_IOPORT_REG *)OALPAtoVA(S3C2440A_BASE_REG_PA_IOPORT, FALSE);
volatile S3C2440A_IOPORT_REG *s2440IOP=NULL;
s2440IOP = (volatile S3C2440A_IOPORT_REG *) VirtualAlloc(0,sizeof(S3C2440A_IOPORT_REG),MEM_RESERVE, PAGE_NOACCESS);
if(s2440IOP == NULL) {
RETAILMSG(1,(TEXT("For s2440IOP: VirtualAlloc 4 failed!\r\n")));
}
else {
if(!VirtualCopy((PVOID)s2440IOP,(PVOID)(S3C2440A_BASE_REG_PA_IOPORT >> 8),sizeof(S3C2440A_IOPORT_REG),PAGE_PHYSICAL | PAGE_READWRITE | PAGE_NOCACHE )) {
RETAILMSG(1,(TEXT("For s2440IOP: VirtualCopy 4 failed!\r\n")));
}
}
if(~((s2440IOP->GPGUP)&(1<<6)))
s2440IOP->GPGUP=(s2440IOP->GPGUP)&(~(1<<6))|(1<<6); // Pull-up disable
if(flag)
{
s2440IOP->GPGDAT=(s2440IOP->GPGDAT)&(~(1<<6))|(1<<6);
}
else
{
s2440IOP->GPGDAT=(s2440IOP->GPGDAT)&(~(1<<6));
}
if((~((s2440IOP->GPGCON)&(0x3<<12)))!=(1<<12))
s2440IOP->GPGCON=(s2440IOP->GPGCON)&(~(3<<12))|(1<<12); //output enable 1
}
void Delayus( int cnt)
{
int i,j;
for(i=0;i<cnt;i++)
{
for(j=0;j<0x1;j++)
{
j++;
}
}
}
void Delayms( int cnt)
{
int i;
for(i=0;i<cnt;i++)
{
Delayus(100);
}
}