AVR128驱动2.4寸TFT(主控芯片ILI9325)

1、avr128驱动2.4寸tft(主控芯片ili9325)单片机 2010-08-29 03:46:53 阅读255 评论0 字号：大中小订阅 1、原理图：avr128与tft最小系统原理图。 2、程序/*/*lcd.c*/#include lcd.hint main(void)initio();/*io口初始化*/ili9325_initial();/*lcd初始化*/clearscreen(0xffff);/*清屏*/lcd_setpos(0,0,239,319);while(1)pant(0xf800,0,240,0,40); /红色pant(0x07e0,0,240,40,80); /绿

2、色pant(0x001f,0,240,80,120); /蓝色pant(0xf800,0,240,120,160); /红色pant(0x07e0,0,240,160,200); /绿色pant(0x001f,0,240,200,240); /蓝色pant(0xf800,0,240,240,280); /红色pant(0x07e0,0,240,280,320); /绿色delayms(1000);delayms(1000);clearscreen(0xffff);pant(0xf800,0,240,0,320); /红色delayms(1000);delayms(1000);clearscre

3、en(0xffff);pant(0x07e0,0,240,0,320); /绿色delayms(1000);delayms(1000);clearscreen(0xffff);pant(0x001f,0,240,0,320); /蓝色delayms(1000);delayms(1000);clearscreen(0xffff); return 1;/*/*lcd.h*/*包含文件*/#include #include#include/*类型定义*/typedef unsigned char uint8;typedef unsigned int uint16;typedef unsigned l

4、ong uint32;#define window_xaddr_start0x0050 / horizontal start address set#define window_xaddr_end0x0051 / horizontal end address set#define window_yaddr_start0x0052 / vertical start address set#define window_yaddr_end0x0053 / vertical end address set#define gram_xaddr 0x0020 / gram horizontal addre

5、ss set#define gram_yaddr 0x0021 / gram vertical address set#define gramwr 0x0022 / memory write#define _nop_() asm(nop)#define lcd_rs_ddr ddrg /数据/命令切换#define lcd_rs_port portg#define lcd_rs_bit 2#define lcd_cs_ddr ddrg/片选#define lcd_cs_port portg#define lcd_cs_bit3#define lcd_wr_ddrddrg/写控制#define

6、lcd_wr_port portg#define lcd_wr_bit0#define lcd_rd_ddrddrg/读控制#define lcd_rd_portportg#define lcd_rd_bit1#define lcd_rst_ddr ddrg/复位 #define lcd_rst_port portg#define lcd_rst_bit 4#define lcd_cs_h lcd_cs_port |= 1lcd_cs_bit#define lcd_cs_l lcd_cs_port &= (1lcd_cs_bit) /sce#define lcd_rs_h lcd_rs_por

7、t |= 1lcd_rs_bit#define lcd_rs_l lcd_rs_port &= (1lcd_rs_bit) /a0#define lcd_rst_h lcd_rst_port |= 1lcd_rst_bit#define lcd_rst_l lcd_rst_port &= (1lcd_rst_bit) /rst#define lcd_wr_h lcd_wr_port |= 1lcd_wr_bit#define lcd_wr_l lcd_wr_port &= (1lcd_wr_bit)#define lcd_rd_h lcd_rd_port |= 1lcd_rd_bit#defi

8、ne lcd_rd_l lcd_rd_port &= (1lcd_rd_bit)#define comctrl portg#define comctrlddr ddrg#define datah portc#define datal porta#define dataddrh ddrc#define dataddrl ddra /*作 者:jundg函数名:void initio(void)函数功能:io口初始化函数参数:无返回值:无*/void initio(void)comctrlddr=0x1f;dataddrh=0xff;dataddrl=0xff;datah=0xff;datal=0

9、xff;comctrl=0x1f;/*作 者:jundg函数名:void delayms(unsigned int count)函数功能:延时函数函数参数:时间值返回值:无*/void delayms(unsigned int count) int i,j; for(i=0;icount;i+) for(j=0;j8;n=y;write_cmd(0x00,x);write_data(m,n);/*作 者:jundg函数名:static void lcd_setpos(unsigned int x0,unsigned int x1,unsigned int y0,unsigned int y1)

10、函数功能:设置显示区域函数参数:x0行起始点,x1行结束点,y0列起始点,y1列结束点返回值:无*/static void lcd_setpos(unsigned int x0,unsigned int x1,unsigned int y0,unsigned int y1) write_cmd_data(window_xaddr_start,x0); write_cmd_data(window_xaddr_end,x1); write_cmd_data(window_yaddr_start,y0); write_cmd_data(window_yaddr_end,y1); write_cmd_

11、data(gram_xaddr,x0); write_cmd_data(gram_yaddr,y0); write_cmd (0x00,0x22);/lcd_writecmd(gramwr);/*作 者:jundg函数名:void pant(int dcolor,unsigned int x0,unsigned int x1,unsigned int y0,unsigned int y1)函数功能:设置显示区域并显示颜色函数参数:dcolor颜色值,x0行起始点,x1行结束点,y0列起始点,y1列结束点返回值:无*/void pant(int dcolor,unsigned int x0,un

12、signed int x1,unsigned int y0,unsigned int y1)int i,j;lcd_setpos(x0,x1,y0,y1); for(i=0;i320;i+) for (j=0;j8,dcolor); /*作 者:jundg函数名:void clearscreen(unsigned int bcolor)函数功能:清屏函数参数:bcolor=0xffff清屏返回值:无*/void clearscreen(unsigned int bcolor)unsigned int i,j;lcd_setpos(0,240,0,320);/320x240for (i=0;i3

13、22;i+) for (j=0;j8,bcolor);/*作 者:jundg函数名:void ili9325_initial(void)函数功能:lcd初始化函数参数:无返回值:无*/void ili9325_initial(void) lcd_cs_h;delayms(5);lcd_rst_l;delayms(5);lcd_rst_h;delayms(5);delayms(50);write_cmd_data(0x0001,0x0100); write_cmd_data(0x0002,0x0700); write_cmd_data(0x0003,0x1030); write_cmd_data

14、(0x0004,0x0000); write_cmd_data(0x0008,0x0207); write_cmd_data(0x0009,0x0000);write_cmd_data(0x000a,0x0000); write_cmd_data(0x000c,0x0000); write_cmd_data(0x000d,0x0000);write_cmd_data(0x000f,0x0000);/power on sequence vghvglwrite_cmd_data(0x0010,0x0000); write_cmd_data(0x0011,0x0007); write_cmd_dat

15、a(0x0012,0x0000); write_cmd_data(0x0013,0x0000); /vgh write_cmd_data(0x0010,0x1290); write_cmd_data(0x0011,0x0227);/delayms(100);/vregiout write_cmd_data(0x0012,0x001d); /0x001b/delayms(100); /vom amplitudewrite_cmd_data(0x0013,0x1500);/delayms(100); /vom hwrite_cmd_data(0x0029,0x0018); write_cmd_da

16、ta(0x002b,0x000d); /gammawrite_cmd_data(0x0030,0x0004);write_cmd_data(0x0031,0x0307);write_cmd_data(0x0032,0x0002);/ 0006write_cmd_data(0x0035,0x0206);write_cmd_data(0x0036,0x0408);write_cmd_data(0x0037,0x0507); write_cmd_data(0x0038,0x0204);/0200write_cmd_data(0x0039,0x0707); write_cmd_data(0x003c,

17、0x0405);/ 0504write_cmd_data(0x003d,0x0f02); /ramwrite_cmd_data(0x0050,0x0000); write_cmd_data(0x0051,0x00ef);write_cmd_data(0x0052,0x0000); write_cmd_data(0x0053,0x013f); write_cmd_data(0x0060,0xa700); write_cmd_data(0x0061,0x0001); write_cmd_data(0x006a,0x0000); /write_cmd_data(0x0080,0x0000); write_cmd_data(0x0081,0x0000); write_cmd_data(0x0082,0x0000); write_cmd_data(0x0083,0x0000); write_cmd_data(0x0084,0x0000)