介绍
GC9A01是一款1.28寸的圆形TFT显示屏模块，分辨率为240x240，支持三种颜色格式：RGB444、RGB565、RGB666，本次实验将在NXP-MCXA153开发板上移植TFT LCD驱动
移植流程
① 绑定TFT LCD上面的GPIO，如SCL_PIN、SDA_PIN、RES_PIN、DC_PIN、CS_PIN，实现GPIO初始化接口：LCD_GPIO_Init
② 根据LCD的读写时序编写bus数据传送接口、命令/数据发送接口等：LCD_Writ_Bus、LCD_WR_DATA、LCD_WR_REG
③ 时序TFT LCD的初始化接口：LCD_Init
④ 对绘图接口进行再一步封装：LCD_Fill、LCD_DrawPoint、Draw_Circle、LCD_ShowChinese、LCD_ShowPicture
引脚配置
GC9A01模块和开发板连接配置如下
| 引脚 | GPIO | 功能 |
|---|---|---|
| SCL_PIN | P1_1 | 时钟引脚 |
| SDA_PIN | P1_0 | MOSI，数据引脚 |
| RES_PIN | P3_30 | 复位引脚 |
| DC_PIN | P3_1 | 数据命令引脚 |
| CS_PIN | P1_3 | 片选引脚 |
驱动文件
lcd_init.h
定义LCD初始化相关的接口
#ifndef __LCD_INIT_H
#define __LCD_INIT_H
#include "drv_pin.h"
typedef unsigned short u16;
typedef unsigned char u8;
typedef unsigned int u32;
#define USE_HORIZONTAL 0
#define USE_HARDWARE_SPI 0
#define LCD_W 240
#define LCD_H 240
#define SCL_PIN ((1*32)+1)
#define SDA_PIN ((1*32)+0)
#define RES_PIN ((3*32)+30)
#define DC_PIN ((3*32)+1)
#define CS_PIN ((1*32)+3)
#define LCD_SCLK_Clr() rt_pin_write(SCL_PIN, PIN_LOW)
#define LCD_SCLK_Set() rt_pin_write(SCL_PIN, PIN_HIGH)
#define LCD_MOSI_Clr() rt_pin_write(SDA_PIN, PIN_LOW)
#define LCD_MOSI_Set() rt_pin_write(SDA_PIN, PIN_HIGH)
#define LCD_RES_Clr() rt_pin_write(RES_PIN, PIN_LOW)
#define LCD_RES_Set() rt_pin_write(RES_PIN, PIN_HIGH)
#define LCD_DC_Clr() rt_pin_write(DC_PIN, PIN_LOW)
#define LCD_DC_Set() rt_pin_write(DC_PIN, PIN_HIGH)
#define LCD_CS_Clr() rt_pin_write(CS_PIN, PIN_LOW)
#define LCD_CS_Set() rt_pin_write(CS_PIN, PIN_HIGH)
#define LCD_BLK_Clr() {}
#define LCD_BLK_Set() {}
void LCD_GPIO_Init(void);
void LCD_Writ_Bus(u8 dat);
void LCD_WR_DATA8(u8 dat);
void LCD_WR_DATA(u16 dat);
void LCD_WR_REG(u8 dat);
void LCD_Address_Set(u16 x1,u16 y1,u16 x2,u16 y2);
void LCD_Init(void);
#endif
lcd_init.c
LCD初始化相关的接口实现
#include "lcd_init.h"
#include <rtthread.h>
#include <board.h>
#include <drv_spi.h>
static struct rt_spi_device *spi_device;
#define SPI_BUS_NAME "spi0"
#define SPI_DEV_NAME "spi00"
void LCD_GPIO_Init(void)
{
// init gpios
rt_base_t cs = 1*32+3;
rt_pin_mode(cs, PIN_MODE_OUTPUT);
rt_pin_mode(DC_PIN, PIN_MODE_OUTPUT);
rt_pin_mode(RES_PIN, PIN_MODE_OUTPUT);
rt_pin_mode(SDA_PIN, PIN_MODE_OUTPUT);
rt_pin_mode(SCL_PIN, PIN_MODE_OUTPUT);
#if USE_HARDWARE_SPI
rt_hw_spi_device_attach(SPI_BUS_NAME, SPI_DEV_NAME, cs);
struct rt_spi_configuration cfg;
spi_device = (struct rt_spi_device *)rt_device_find(SPI_DEV_NAME);
if (!spi_device)
{
rt_kprintf("can't find %s device!\n", SPI_BUS_NAME);
}
cfg.data_width = 8;
cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB;
cfg.max_hz = 12* 1000 * 1000; /* 500K */
rt_spi_configure(spi_device, &cfg);
#endif
}
void LCD_Writ_Bus(u8 dat)
{
#if 0
rt_uint8_t recv_buf[1];
rt_spi_transfer(spi_device, &dat, recv_buf, 1);
#else
u8 i;
LCD_CS_Clr();
for(i=0;i<8;i++)
{
LCD_SCLK_Clr();
if(dat&0x80)
{
LCD_MOSI_Set();
}
else
{
LCD_MOSI_Clr();
}
LCD_SCLK_Set();
dat<<=1;
}
LCD_CS_Set();
#endif
}
void LCD_WR_DATA8(u8 dat)
{
LCD_Writ_Bus(dat);
}
void LCD_WR_DATA(u16 dat)
{
LCD_Writ_Bus(dat>>8);
LCD_Writ_Bus(dat);
}
void LCD_WR_REG(u8 dat)
{
LCD_DC_Clr();
LCD_Writ_Bus(dat);
LCD_DC_Set();
}
void LCD_Address_Set(u16 x1,u16 y1,u16 x2,u16 y2)
{
LCD_WR_REG(0x2a);
LCD_WR_DATA(x1);
LCD_WR_DATA(x2);
LCD_WR_REG(0x2b);
LCD_WR_DATA(y1);
LCD_WR_DATA(y2);
LCD_WR_REG(0x2c);
}
void LCD_Init(void)
{
LCD_GPIO_Init();
LCD_RES_Clr();
rt_thread_mdelay(100);
LCD_RES_Set();
rt_thread_mdelay(100);
LCD_BLK_Set();
rt_thread_mdelay(100);
LCD_WR_REG(0xEF);
LCD_WR_REG(0xEB);
LCD_WR_DATA8(0x14);
LCD_WR_REG(0xFE);
LCD_WR_REG(0xEF);
LCD_WR_REG(0xEB);
LCD_WR_DATA8(0x14);
LCD_WR_REG(0x84);
LCD_WR_DATA8(0x40);
LCD_WR_REG(0x85);
LCD_WR_DATA8(0xFF);
LCD_WR_REG(0x86);
LCD_WR_DATA8(0xFF);
LCD_WR_REG(0x87);
LCD_WR_DATA8(0xFF);
LCD_WR_REG(0x88);
LCD_WR_DATA8(0x0A);
LCD_WR_REG(0x89);
LCD_WR_DATA8(0x21);
LCD_WR_REG(0x8A);
LCD_WR_DATA8(0x00);
LCD_WR_REG(0x8B);
LCD_WR_DATA8(0x80);
LCD_WR_REG(0x8C);
LCD_WR_DATA8(0x01);
LCD_WR_REG(0x8D);
LCD_WR_DATA8(0x01);
LCD_WR_REG(0x8E);
LCD_WR_DATA8(0xFF);
LCD_WR_REG(0x8F);
LCD_WR_DATA8(0xFF);
LCD_WR_REG(0xB6);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x20);
LCD_WR_REG(0x36);
if(USE_HORIZONTAL==0)LCD_WR_DATA8(0x08);
else if(USE_HORIZONTAL==1)LCD_WR_DATA8(0xC8);
else if(USE_HORIZONTAL==2)LCD_WR_DATA8(0x68);
else LCD_WR_DATA8(0xA8);
LCD_WR_REG(0x3A);
LCD_WR_DATA8(0x05);
LCD_WR_REG(0x90);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x08);
LCD_WR_REG(0xBD);
LCD_WR_DATA8(0x06);
LCD_WR_REG(0xBC);
LCD_WR_DATA8(0x00);
LCD_WR_REG(0xFF);
LCD_WR_DATA8(0x60);
LCD_WR_DATA8(0x01);
LCD_WR_DATA8(0x04);
LCD_WR_REG(0xC3);
LCD_WR_DATA8(0x13);
LCD_WR_REG(0xC4);
LCD_WR_DATA8(0x13);
LCD_WR_REG(0xC9);
LCD_WR_DATA8(0x22);
LCD_WR_REG(0xBE);
LCD_WR_DATA8(0x11);
LCD_WR_REG(0xE1);
LCD_WR_DATA8(0x10);
LCD_WR_DATA8(0x0E);
LCD_WR_REG(0xDF);
LCD_WR_DATA8(0x21);
LCD_WR_DATA8(0x0c);
LCD_WR_DATA8(0x02);
LCD_WR_REG(0xF0);
LCD_WR_DATA8(0x45);
LCD_WR_DATA8(0x09);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x26);
LCD_WR_DATA8(0x2A);
LCD_WR_REG(0xF1);
LCD_WR_DATA8(0x43);
LCD_WR_DATA8(0x70);
LCD_WR_DATA8(0x72);
LCD_WR_DATA8(0x36);
LCD_WR_DATA8(0x37);
LCD_WR_DATA8(0x6F);
LCD_WR_REG(0xF2);
LCD_WR_DATA8(0x45);
LCD_WR_DATA8(0x09);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x26);
LCD_WR_DATA8(0x2A);
LCD_WR_REG(0xF3);
LCD_WR_DATA8(0x43);
LCD_WR_DATA8(0x70);
LCD_WR_DATA8(0x72);
LCD_WR_DATA8(0x36);
LCD_WR_DATA8(0x37);
LCD_WR_DATA8(0x6F);
LCD_WR_REG(0xED);
LCD_WR_DATA8(0x1B);
LCD_WR_DATA8(0x0B);
LCD_WR_REG(0xAE);
LCD_WR_DATA8(0x77);
LCD_WR_REG(0xCD);
LCD_WR_DATA8(0x63);
LCD_WR_REG(0x70);
LCD_WR_DATA8(0x07);
LCD_WR_DATA8(0x07);
LCD_WR_DATA8(0x04);
LCD_WR_DATA8(0x0E);
LCD_WR_DATA8(0x0F);
LCD_WR_DATA8(0x09);
LCD_WR_DATA8(0x07);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x03);
LCD_WR_REG(0xE8);
LCD_WR_DATA8(0x34);
LCD_WR_REG(0x62);
LCD_WR_DATA8(0x18);
LCD_WR_DATA8(0x0D);
LCD_WR_DATA8(0x71);
LCD_WR_DATA8(0xED);
LCD_WR_DATA8(0x70);
LCD_WR_DATA8(0x70);
LCD_WR_DATA8(0x18);
LCD_WR_DATA8(0x0F);
LCD_WR_DATA8(0x71);
LCD_WR_DATA8(0xEF);
LCD_WR_DATA8(0x70);
LCD_WR_DATA8(0x70);
LCD_WR_REG(0x63);
LCD_WR_DATA8(0x18);
LCD_WR_DATA8(0x11);
LCD_WR_DATA8(0x71);
LCD_WR_DATA8(0xF1);
LCD_WR_DATA8(0x70);
LCD_WR_DATA8(0x70);
LCD_WR_DATA8(0x18);
LCD_WR_DATA8(0x13);
LCD_WR_DATA8(0x71);
LCD_WR_DATA8(0xF3);
LCD_WR_DATA8(0x70);
LCD_WR_DATA8(0x70);
LCD_WR_REG(0x64);
LCD_WR_DATA8(0x28);
LCD_WR_DATA8(0x29);
LCD_WR_DATA8(0xF1);
LCD_WR_DATA8(0x01);
LCD_WR_DATA8(0xF1);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x07);
LCD_WR_REG(0x66);
LCD_WR_DATA8(0x3C);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0xCD);
LCD_WR_DATA8(0x67);
LCD_WR_DATA8(0x45);
LCD_WR_DATA8(0x45);
LCD_WR_DATA8(0x10);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x00);
LCD_WR_REG(0x67);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x3C);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x01);
LCD_WR_DATA8(0x54);
LCD_WR_DATA8(0x10);
LCD_WR_DATA8(0x32);
LCD_WR_DATA8(0x98);
LCD_WR_REG(0x74);
LCD_WR_DATA8(0x10);
LCD_WR_DATA8(0x85);
LCD_WR_DATA8(0x80);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x4E);
LCD_WR_DATA8(0x00);
LCD_WR_REG(0x98);
LCD_WR_DATA8(0x3e);
LCD_WR_DATA8(0x07);
LCD_WR_REG(0x35);
LCD_WR_REG(0x21);
LCD_WR_REG(0x11);
rt_thread_mdelay(120);
LCD_WR_REG(0x29);
rt_thread_mdelay(20);
}
lcd.h
绘图接口声明
#ifndef __LCD_H
#define __LCD_H
typedef unsigned short u16;
typedef unsigned char u8;
typedef unsigned int u32;
void LCD_Fill(u16 xsta,u16 ysta,u16 xend,u16 yend,u16 color);//Ö¸¶¨ÇøÓòÌî³äÑÕÉ«
void LCD_DrawPoint(u16 x,u16 y,u16 color);//ÔÚÖ¸¶¨Î»Öûһ¸öµã
void LCD_DrawLine(u16 x1,u16 y1,u16 x2,u16 y2,u16 color);//ÔÚÖ¸¶¨Î»ÖûһÌõÏß
void LCD_DrawRectangle(u16 x1, u16 y1, u16 x2, u16 y2,u16 color);//ÔÚÖ¸¶¨Î»Öûһ¸ö¾ØÐÎ
void Draw_Circle(u16 x0,u16 y0,u8 r,u16 color);//ÔÚÖ¸¶¨Î»Öûһ¸öÔ²
void LCD_ShowChinese(u16 x,u16 y,u8 *s,u16 fc,u16 bc,u8 sizey,u8 mode);//ÏÔʾºº×Ö´®
void LCD_ShowChinese12x12(u16 x,u16 y,u8 *s,u16 fc,u16 bc,u8 sizey,u8 mode);//ÏÔʾµ¥¸ö12x12ºº×Ö
void LCD_ShowChinese16x16(u16 x,u16 y,u8 *s,u16 fc,u16 bc,u8 sizey,u8 mode);//ÏÔʾµ¥¸ö16x16ºº×Ö
void LCD_ShowChinese24x24(u16 x,u16 y,u8 *s,u16 fc,u16 bc,u8 sizey,u8 mode);//ÏÔʾµ¥¸ö24x24ºº×Ö
void LCD_ShowChinese32x32(u16 x,u16 y,u8 *s,u16 fc,u16 bc,u8 sizey,u8 mode);//ÏÔʾµ¥¸ö32x32ºº×Ö
void LCD_ShowChar(u16 x,u16 y,u8 num,u16 fc,u16 bc,u8 sizey,u8 mode);//ÏÔʾһ¸ö×Ö·û
void LCD_ShowString(u16 x,u16 y,const u8 *p,u16 fc,u16 bc,u8 sizey,u8 mode);//ÏÔʾ×Ö·û´®
u32 mypow(u8 m,u8 n);//ÇóÃÝ
void LCD_ShowIntNum(u16 x,u16 y,u16 num,u8 len,u16 fc,u16 bc,u8 sizey);//ÏÔʾÕûÊý±äÁ¿
void LCD_ShowFloatNum1(u16 x,u16 y,float num,u8 len,u16 fc,u16 bc,u8 sizey);//ÏÔʾÁ½Î»Ð¡Êý±äÁ¿
void LCD_ShowPicture(u16 x,u16 y,u16 length,u16 width,const u8 pic[]);//ÏÔʾͼƬ
//»±ÊÑÕÉ«
#define WHITE 0xFFFF
#define BLACK 0x0000
#define BLUE 0x001F
#define BRED 0XF81F
#define GRED 0XFFE0
#define GBLUE 0X07FF
#define RED 0xF800
#define MAGENTA 0xF81F
#define GREEN 0x07E0
#define CYAN 0x7FFF
#define YELLOW 0xFFE0
#define BROWN 0XBC40 //×ØÉ«
#define BRRED 0XFC07 //×غìÉ«
#define GRAY 0X8430 //»ÒÉ«
#define DARKBLUE 0X01CF //ÉîÀ¶É«
#define LIGHTBLUE 0X7D7C //dzÀ¶É«
#define GRAYBLUE 0X5458 //»ÒÀ¶É«
#define LIGHTGREEN 0X841F //dzÂÌÉ«
#define LGRAY 0XC618 //dz»ÒÉ«(PANNEL),´°Ìå±³¾°É«
#define LGRAYBLUE 0XA651 //dz»ÒÀ¶É«(Öмä²ãÑÕÉ«)
#define LBBLUE 0X2B12 //dz×ØÀ¶É«(Ñ¡ÔñÌõÄ¿µÄ·´É«)
#endif
lcd.c
绘图接口实现
#include "lcd.h"
#include "lcd_init.h"
#include "lcdfont.h"
void LCD_Fill(u16 xsta,u16 ysta,u16 xend,u16 yend,u16 color)
{
u16 i,j;
LCD_Address_Set(xsta,ysta,xend-1,yend-1);
for(i=ysta;i<yend;i++)
{
for(j=xsta;j<xend;j++)
{
LCD_WR_DATA(color);
}
}
}
void LCD_DrawPoint(u16 x,u16 y,u16 color)
{
LCD_Address_Set(x,y,x,y);
LCD_WR_DATA(color);
}
void LCD_DrawLine(u16 x1,u16 y1,u16 x2,u16 y2,u16 color)
{
u16 t;
int xerr=0,yerr=0,delta_x,delta_y,distance;
int incx,incy,uRow,uCol;
delta_x=x2-x1;
delta_y=y2-y1;
uRow=x1;
uCol=y1;
if(delta_x>0)incx=1;
else if (delta_x==0)incx=0;
else {incx=-1;delta_x=-delta_x;}
if(delta_y>0)incy=1;
else if (delta_y==0)incy=0;
else {incy=-1;delta_y=-delta_y;}
if(delta_x>delta_y)distance=delta_x;
else distance=delta_y;
for(t=0;t<distance+1;t++)
{
LCD_DrawPoint(uRow,uCol,color);
xerr+=delta_x;
yerr+=delta_y;
if(xerr>distance)
{
xerr-=distance;
uRow+=incx;
}
if(yerr>distance)
{
yerr-=distance;
uCol+=incy;
}
}
}
void LCD_DrawRectangle(u16 x1, u16 y1, u16 x2, u16 y2,u16 color)
{
LCD_DrawLine(x1,y1,x2,y1,color);
LCD_DrawLine(x1,y1,x1,y2,color);
LCD_DrawLine(x1,y2,x2,y2,color);
LCD_DrawLine(x2,y1,x2,y2,color);
}
void Draw_Circle(u16 x0,u16 y0,u8 r,u16 color)
{
int a,b;
a=0;b=r;
while(a<=b)
{
LCD_DrawPoint(x0-b,y0-a,color); //3
LCD_DrawPoint(x0+b,y0-a,color); //0
LCD_DrawPoint(x0-a,y0+b,color); //1
LCD_DrawPoint(x0-a,y0-b,color); //2
LCD_DrawPoint(x0+b,y0+a,color); //4
LCD_DrawPoint(x0+a,y0-b,color); //5
LCD_DrawPoint(x0+a,y0+b,color); //6
LCD_DrawPoint(x0-b,y0+a,color); //7
a++;
if((a*a+b*b)>(r*r))
{
b--;
}
}
}
void LCD_ShowChinese(u16 x,u16 y,u8 *s,u16 fc,u16 bc,u8 sizey,u8 mode)
{
while(*s!=0)
{
if(sizey==12) LCD_ShowChinese12x12(x,y,s,fc,bc,sizey,mode);
else if(sizey==16) LCD_ShowChinese16x16(x,y,s,fc,bc,sizey,mode);
else if(sizey==24) LCD_ShowChinese24x24(x,y,s,fc,bc,sizey,mode);
else if(sizey==32) LCD_ShowChinese32x32(x,y,s,fc,bc,sizey,mode);
else return;
s+=2;
x+=sizey;
}
}
void LCD_ShowChinese12x12(u16 x,u16 y,u8 *s,u16 fc,u16 bc,u8 sizey,u8 mode)
{
u8 i,j,m=0;
u16 k;
u16 HZnum;
u16 TypefaceNum;
u16 x0=x;
TypefaceNum=(sizey/8+((sizey%8)?1:0))*sizey;
HZnum=sizeof(tfont12)/sizeof(typFNT_GB12);
for(k=0;k<HZnum;k++)
{
if((tfont12[k].Index[0]==*(s))&&(tfont12[k].Index[1]==*(s+1)))
{
LCD_Address_Set(x,y,x+sizey-1,y+sizey-1);
for(i=0;i<TypefaceNum;i++)
{
for(j=0;j<8;j++)
{
if(!mode)
{
if(tfont12[k].Msk[i]&(0x01<<j))LCD_WR_DATA(fc);
else LCD_WR_DATA(bc);
m++;
if(m%sizey==0)
{
m=0;
break;
}
}
else
{
if(tfont12[k].Msk[i]&(0x01<<j)) LCD_DrawPoint(x,y,fc);
x++;
if((x-x0)==sizey)
{
x=x0;
y++;
break;
}
}
}
}
}
continue;
}
}
void LCD_ShowChinese16x16(u16 x,u16 y,u8 *s,u16 fc,u16 bc,u8 sizey,u8 mode)
{
u8 i,j,m=0;
u16 k;
u16 HZnum;
u16 TypefaceNum;
u16 x0=x;
TypefaceNum=(sizey/8+((sizey%8)?1:0))*sizey;
HZnum=sizeof(tfont16)/sizeof(typFNT_GB16);
for(k=0;k<HZnum;k++)
{
if ((tfont16[k].Index[0]==*(s))&&(tfont16[k].Index[1]==*(s+1)))
{
LCD_Address_Set(x,y,x+sizey-1,y+sizey-1);
for(i=0;i<TypefaceNum;i++)
{
for(j=0;j<8;j++)
{
if(!mode)
{
if(tfont16[k].Msk[i]&(0x01<<j))LCD_WR_DATA(fc);
else LCD_WR_DATA(bc);
m++;
if(m%sizey==0)
{
m=0;
break;
}
}
else
{
if(tfont16[k].Msk[i]&(0x01<<j)) LCD_DrawPoint(x,y,fc);
x++;
if((x-x0)==sizey)
{
x=x0;
y++;
break;
}
}
}
}
}
continue;
}
}
void LCD_ShowChinese24x24(u16 x,u16 y,u8 *s,u16 fc,u16 bc,u8 sizey,u8 mode)
{
u8 i,j,m=0;
u16 k;
u16 HZnum;
u16 TypefaceNum;
u16 x0=x;
TypefaceNum=(sizey/8+((sizey%8)?1:0))*sizey;
HZnum=sizeof(tfont24)/sizeof(typFNT_GB24);
for(k=0;k<HZnum;k++)
{
if ((tfont24[k].Index[0]==*(s))&&(tfont24[k].Index[1]==*(s+1)))
{
LCD_Address_Set(x,y,x+sizey-1,y+sizey-1);
for(i=0;i<TypefaceNum;i++)
{
for(j=0;j<8;j++)
{
if(!mode)
{
if(tfont24[k].Msk[i]&(0x01<<j))LCD_WR_DATA(fc);
else LCD_WR_DATA(bc);
m++;
if(m%sizey==0)
{
m=0;
break;
}
}
else
{
if(tfont24[k].Msk[i]&(0x01<<j)) LCD_DrawPoint(x,y,fc);
x++;
if((x-x0)==sizey)
{
x=x0;
y++;
break;
}
}
}
}
}
continue;
}
}
void LCD_ShowChinese32x32(u16 x,u16 y,u8 *s,u16 fc,u16 bc,u8 sizey,u8 mode)
{
u8 i,j,m=0;
u16 k;
u16 HZnum;
u16 TypefaceNum;
u16 x0=x;
TypefaceNum=(sizey/8+((sizey%8)?1:0))*sizey;
HZnum=sizeof(tfont32)/sizeof(typFNT_GB32);
for(k=0;k<HZnum;k++)
{
if ((tfont32[k].Index[0]==*(s))&&(tfont32[k].Index[1]==*(s+1)))
{
LCD_Address_Set(x,y,x+sizey-1,y+sizey-1);
for(i=0;i<TypefaceNum;i++)
{
for(j=0;j<8;j++)
{
if(!mode)
{
if(tfont32[k].Msk[i]&(0x01<<j))LCD_WR_DATA(fc);
else LCD_WR_DATA(bc);
m++;
if(m%sizey==0)
{
m=0;
break;
}
}
else
{
if(tfont32[k].Msk[i]&(0x01<<j)) LCD_DrawPoint(x,y,fc);
x++;
if((x-x0)==sizey)
{
x=x0;
y++;
break;
}
}
}
}
}
continue;
}
}
void LCD_ShowChar(u16 x,u16 y,u8 num,u16 fc,u16 bc,u8 sizey,u8 mode)
{
u8 temp,sizex,t,m=0;
u16 i,TypefaceNum;
u16 x0=x;
sizex=sizey/2;
TypefaceNum=(sizex/8+((sizex%8)?1:0))*sizey;
num=num-' ';
LCD_Address_Set(x,y,x+sizex-1,y+sizey-1);
for(i=0;i<TypefaceNum;i++)
{
if(sizey==12)temp=ascii_1206[num][i];
else if(sizey==16)temp=ascii_1608[num][i];
else if(sizey==24)temp=ascii_2412[num][i];
else if(sizey==32)temp=ascii_3216[num][i];
else return;
for(t=0;t<8;t++)
{
if(!mode)
{
if(temp&(0x01<<t))LCD_WR_DATA(fc);
else LCD_WR_DATA(bc);
m++;
if(m%sizex==0)
{
m=0;
break;
}
}
else
{
if(temp&(0x01<<t))LCD_DrawPoint(x,y,fc);
x++;
if((x-x0)==sizex)
{
x=x0;
y++;
break;
}
}
}
}
}
void LCD_ShowString(u16 x,u16 y,const u8 *p,u16 fc,u16 bc,u8 sizey,u8 mode)
{
while(*p!='\0')
{
LCD_ShowChar(x,y,*p,fc,bc,sizey,mode);
x+=sizey/2;
p++;
}
}
u32 mypow(u8 m,u8 n)
{
u32 result=1;
while(n--)result*=m;
return result;
}
void LCD_ShowIntNum(u16 x,u16 y,u16 num,u8 len,u16 fc,u16 bc,u8 sizey)
{
u8 t,temp;
u8 enshow=0;
u8 sizex=sizey/2;
for(t=0;t<len;t++)
{
temp=(num/mypow(10,len-t-1))%10;
if(enshow==0&&t<(len-1))
{
if(temp==0)
{
LCD_ShowChar(x+t*sizex,y,' ',fc,bc,sizey,0);
continue;
}else enshow=1;
}
LCD_ShowChar(x+t*sizex,y,temp+48,fc,bc,sizey,0);
}
}
void LCD_ShowFloatNum1(u16 x,u16 y,float num,u8 len,u16 fc,u16 bc,u8 sizey)
{
u8 t,temp,sizex;
u16 num1;
sizex=sizey/2;
num1=num*100;
for(t=0;t<len;t++)
{
temp=(num1/mypow(10,len-t-1))%10;
if(t==(len-2))
{
LCD_ShowChar(x+(len-2)*sizex,y,'.',fc,bc,sizey,0);
t++;
len+=1;
}
LCD_ShowChar(x+t*sizex,y,temp+48,fc,bc,sizey,0);
}
}
void LCD_ShowPicture(u16 x,u16 y,u16 length,u16 width,const u8 pic[])
{
u16 i,j;
u32 k=0;
LCD_Address_Set(x,y,x+length-1,y+width-1);
for(i=0;i<length;i++)
{
for(j=0;j<width;j++)
{
LCD_WR_DATA8(pic[k*2]);
LCD_WR_DATA8(pic[k*2+1]);
k++;
}
}
}
测试用例
LCD显示圆形波纹动画
#include <rtthread.h>
#include <rtdevice.h>
#include "stdlib.h"
#include "lcd.h"
#include "lcd_init.h"
#include "pic.h"
int main(void)
{
int j = 0;
LCD_Init();
LCD_Fill(0, 0, 240, 240, BLACK);
while(1) {
for(int i = 0; i < 240; i += 10) {
Draw_Circle(120, 120, i, 400 * j);
}
if(j++ > 65536 / 400) {
j = 0;
}
rt_thread_mdelay(1);
}
return 0;
}
实验效果
参考
GC9A01 1.28寸圆形TFT: GC9A01 1.28寸圆形TFT (gitee.com)
