GD32 驱动液晶屏幕

只看该作者 · 2018-11-30 23:43

// lcd 驱动
void lcd19264_gpio_conf(void)
{
GPIO_InitPara GPIO_InitStructure;

RCC_APB2PeriphClock_Enable(RCC_APB2PERIPH_GPIOA,ENABLE);

GPIO_InitStructure.GPIO_Pin = GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12;
GPIO_InitStructure.GPIO_Speed = GPIO_SPEED_50MHZ;
GPIO_InitStructure.GPIO_Mode = GPIO_MODE_OUT_PP;

GPIO_Init(GPIOA,&GPIO_InitStructure);

}

只看该作者 · 2018-11-30 23:43

void LCD_Set_Pos(unsigned char x, unsigned char y)
{
    LCD19264_WriteCmd(0xb0+y);
    LCD19264_WriteCmd(((x&0xf0)>>4)|0x10);
    LCD19264_WriteCmd(x&0x0f);
}

只看该作者 · 2018-11-30 23:44

void LCD_P8x16Str(unsigned char x,unsigned char y,char ch[])
{
char c=0,i=0,j=0;
while (ch[j]!='\0')
   {
   c =ch[j]-32;
   if(x>184){x=0;y+=2;}
   LCD_Set_Pos(x,y);
   for(i=0;i<8;i++)
       LCD19264_WriteData(F8X16[c*16+i]);
   LCD_Set_Pos(x,y+1);
       for(i=0;i<8;i++)
       LCD19264_WriteData(F8X16[c*16+i+8]);
       x+=8;
       j++;
   }
}

只看该作者 · 2018-11-30 23:44

void LCD19264_WriteCmd(uchar cmd)
{
uchar i;
CS_L;
RS_L;
for (i=0; i<8; i++)
{
   SCL_L;
if(cmd&0x80)
SDA_H;
else
SDA_L;
SCL_H;
cmd =cmd<< 1;
}
      CS_H;
}

只看该作者 · 2018-11-30 23:45

void LCD19264_WriteData(uchar dat)
{
uchar i;
CS_L;
RS_H;
for (i=0; i<8; i++)
{
SCL_L;
if(dat&0x80)
SDA_H;
else
SDA_L;
SCL_H;
dat =dat<< 1;
}
CS_H;
}

只看该作者 · 2018-11-30 23:45

void lcd_address(uchar page,uchar column)
{
//column=column+31;
   page=page-1;
   LCD19264_WriteCmd(0xb0+page);
   LCD19264_WriteCmd(((column>>4)&0x0f)+0x10);
   LCD19264_WriteCmd(column&0x0f);
}

只看该作者 · 2018-11-30 23:48

void LCD19264_ClearScreen(void)
{
uchar i, j;

for(i=0; i<8; i++)
{
lcd_address(1+i,1);
for(j=0; j<192; j++)
{
LCD19264_WriteData(0x00);
}
}
}

只看该作者 · 2018-11-30 23:51

void display_string_5x8(uint page,uint column,uchar reverse,uchar *text)
{
uchar i=0,j,k,data1;
while(text[i]>0x00)
{

   if(column>186)
   {
         column =0;
   page+=1;
      }
if((text[i]>=0x20)&&(text[i]<=0x7e))
{
j=text[i]-0x20;
lcd_address(page,column);
for(k=0;k<5;k++)
{
if(reverse==1) data1=~ascii_table_5x8[j][k];
else data1=ascii_table_5x8[j][k];
LCD19264_WriteData(data1);
      }
if(reverse==1)
   LCD19264_WriteData(0xff);
else
   LCD19264_WriteData(0x00);
i++;
column+=6;
}
else
      i++;
}
}

只看该作者 · 2018-11-30 23:52

void OLED_Print(unsigned char x, unsigned char y, char ch[])
{
char ch2[3];
unsigned char ii=0;
while(ch[ii] != '\0')
{
ch2[0] = ch[ii];
ch2[1] = '\0';
LCD_P8x16Str(x,y,ch2);
x += 8;
ii+= 1;
}
}

只看该作者 · 2018-11-30 23:53

void OLED_Printf(unsigned char x,unsigned char y,const char *fmt,...)
{
static unsigned char last_len[4]={0,0,0,0};
static char LCD_BUF[128]={0};
unsigned char len;
unsigned char i;
__va_list ap;

va_start(ap,fmt);
vsprintf((char *)LCD_BUF,fmt,ap);
va_end(ap);

len=strlen((char *)LCD_BUF)+2*y;
for(i=len;i<last_len[x];i++)
{
LCD_BUF[i-2*y]=' ';
}
LCD_BUF[i-2*y]=0;
OLED_Print(x,y,LCD_BUF);
last_len[x]=len;
}

只看该作者 · 2018-11-30 23:54

void LCD19264_Init(void)
{
RST_L;
delay_ms(10);
RST_H;
delay_ms(10);
LCD19264_WriteCmd(0xe2);
delay_ms(5);
LCD19264_WriteCmd(0x81);
LCD19264_WriteCmd(0xb2);
LCD19264_WriteCmd(0xc2);
LCD19264_WriteCmd(0xaf);
}

只看该作者 · 2018-12-18 09:35

楼主辛苦！

GD32 驱动 液晶屏幕

GD32 驱动液晶屏幕