学习STM32 玩TFT屏 第八季

chinafox

 这季没啥,都是为触摸屏做准备.我们先完善几个小函数.明天为触摸屏学习做介面.

首先是:

//显示一串字符函数  ************************************************************************************************

void linechar_1608t(u8 Page,u8 List,u8 *pd)

{

     u8 temp;

 while((*pd)!='\0')

  {

  temp=*pd;

  SHOW_char_NBC(Page,List,temp);

  pd++;

  List=List+1;

 }

}

非常好看,我就不多说了.以下是粉笔擦~~~~~~擦屏用的,不是擦PP的:

//用背景色刷出N个字符位  *****************************************************************************************

void Clear_line(u8 page,u8 list,u8 N)

{

u8 i;

for (i=0;i<N;i++)

{

SHOW_char(page,list,' ');

list=list+1;

}

}

因为有数字计算,这里写个显示数字的小小函数

// 显示数字串   *******************************************************************************************

void count_show(u8 Page,u8 List,u16 input)

{

u16 temp0,temp1,temp2,temp3,temp4,A,B;

  temp0=input/10000;  //将脉冲个数转换成字符由1602输出 

  

   

  A=input%10000;

  temp1=A/1000;

  B=A%1000;

  temp2=B/100;

  A=B%100;

  temp3=A/10;

  B=A%10;

  temp4=B;

  

  if (temp0!=0)

   {

SHOW_char_NBC(Page,List,'0'+temp0);

List=List+1;

}

  if ((temp1!=0)|(temp0!=0))

   {

SHOW_char_NBC(Page,List,'0'+temp1);

List=List+1;

}

  if ((temp2!=0)|(temp1!=0)|(temp0!=0))

   {

SHOW_char_NBC(Page,List,'0'+temp2);

List=List+1;

}

  if ((temp3!=0)|(temp2!=0)|(temp1!=0)|(temp0!=0))

   {

SHOW_char_NBC(Page,List,'0'+temp3);

List=List+1;

}

  SHOW_char_NBC(Page,List,'0'+temp4);

}

以上绿色的这些主要是高位有零不显示的,比如 1238 没理由显示成 01238吧.这些绿色的程式主要是去掉不要的0的.

好了,man()函数我也小改了一下.

// 主函数   ************************************************************************************************

int main(void)

{

  u8   k=' ';

  u16  i=0;

  Stm32_Clock_Init(9);

  delay_init(72);

  uart_init(72,9600);

  LCD_IO_Init();

  LCD_init();

  B_COLOR=color(7,14,7);

  clear_lcd();

  while (1) 

    {   

F_COLOR = color(0,60,0);

linechar_1608t(3,6,"This is char show\0");

count_show(5,12,i);

F_COLOR = color(0,60,0);

SHOW_char_NBC(9,14,k);  

k=k+1;

i=i+1;

if (k-' '>=95)k=' ';

if (i==50000)i=0;

delay_ms(50);

B_COLOR=color(7,14,7);

SHOW_char(9,14,' ');

Clear_line(3,6,18);

Clear_line(5,12,5);

delay_ms(50);

}

}

以下我帖出全部的代码,大家一齐来玩玩.偶觉觉去了.这些准备好了,明天我们来搞触摸屏,主要是玩通那AD转换  ADS7843的蕊片.

#include "sys.h"

#include "usart.h"

#include "delay.h"

#include "FONT.h"

//快速IO

#define LCD_CS_SET  GPIOC->BSRR=1<<9    //片选端口          PC9

#define LCD_RS_SET GPIOC->BSRR=1<<8    //数据/命令            C8    

#define LCD_WR_SET GPIOC->BSRR=1<<7    //写数据    PC7

#define LCD_RD_SET GPIOC->BSRR=1<<6    //读数据    PC6

    

#define LCD_CS_CLR  GPIOC->BRR=1<<9     //片选端口          PC9

#define LCD_RS_CLR GPIOC->BRR=1<<8     //数据/命令            C8    

#define LCD_WR_CLR GPIOC->BRR=1<<7     //写数据    PC7

#define LCD_RD_CLR GPIOC->BRR=1<<6     //读数据    PC6

    

//慢速IO

#define LCD_CS PCout(9)  //片选端口        PC9

#define LCD_RS PCout(8)  //数据/命令        C8    

#define LCD_WR PCout(7)  //写数据  PC7

#define LCD_RD PCout(6)  //读数据  PC6

#define LCD_LED PCout(10)  //背光

//PB0~15,作为数据线

#define DATAOUT(x)   GPIOB->ODR=x;         //数据输出

#define DATAIN       GPIOB->IDR;           //数据输入

#define LCD_WR_DATA(data){\

LCD_RS_SET;\

LCD_CS_CLR;\

DATAOUT(data);\

LCD_WR_CLR;\

LCD_WR_SET;\

LCD_CS_SET;\

}

u16  F_COLOR,B_COLOR;

void LCD_IO_Init(void)

{ 

  RCC->APB2ENR|=1<<3;//先使能外设PORTB时钟

  RCC->APB2ENR|=1<<4;//先使能外设PORTC时钟

RCC->APB2ENR|=1<<0;    //开启辅助时钟

JTAG_Set(SWD_ENABLE);  //开启SWD

 

//PORTC6~10  推挽输出 

GPIOC->CRH&=0XFFFFF000;

GPIOC->CRH|=0X00000333; 

GPIOC->CRL&=0X00FFFFFF;

GPIOC->CRL|=0X33000000;  

GPIOC->ODR|=0X07C0;   

//PORTB 推挽输出 

GPIOB->CRH=0X33333333;

GPIOB->CRL=0X33333333;   

GPIOB->ODR=0XFFFF;

}

////正常IO写 寄存器 函数

//void LCD_WR_REG(u8 data)

//{ 

// LCD_RS=0;//写地址  

//  LCD_CS=0; 

// DATAOUT(data); 

// LCD_WR=0; 

// LCD_WR=1; 

//  LCD_CS=1;   

//} 

//

////正常IO写 8位数据 函数

//void LCD_WR_DATA(u16 data)

//

//{

//LCD_RS=1;

//LCD_CS=0;

//DATAOUT(data);

//LCD_WR=0;

//LCD_WR=1;

//LCD_CS=1;

//} 

//写寄存器函数=>快

void LCD_WR_REG(u8 data)

{ 

LCD_RS_CLR;//写地址  

  LCD_CS_CLR; 

DATAOUT(data); 

LCD_WR_CLR; 

LCD_WR_SET; 

  LCD_CS_SET;   

}

//写寄存器

void LCD_WriteReg(u8 LCD_Reg, u16 LCD_RegValue)

{

LCD_WR_REG(LCD_Reg);  

LCD_WR_DATA(LCD_RegValue);       

}

//读寄存器

u16 LCD_ReadReg(u8 LCD_Reg)

{    

u16 t;

LCD_WR_REG(LCD_Reg);    //写入要读的寄存器号  

GPIOB->CRL=0X88888888;  //PB0-7  上拉输入

GPIOB->CRH=0X88888888;  //PB8-15 上拉输入

GPIOB->ODR=0XFFFF;      //全部输出高

LCD_RS=1;

LCD_CS=0;

//读取数据(读寄存器时,并不需要读2次)

LCD_RD=0;    

LCD_RD=1;

t=DATAIN;  

LCD_CS=1; 

 

GPIOB->CRL=0X33333333; //PB0-7  上拉输出

GPIOB->CRH=0X33333333; //PB8-15 上拉输出

GPIOB->ODR=0XFFFF;    //全部输出高

return t;  

}      

//返回值:此点的颜色

u16 LCD_ReadPoint(u16 x,u16 y)

{

u16 t;

LCD_WriteReg(0x0020,x);  //X

LCD_WriteReg(0x0021,y);  //Y

LCD_WR_REG(0x22);       //选择GRAM地址

 

GPIOB->CRL=0X88888888; //PB0-7  上拉输入

GPIOB->CRH=0X88888888; //PB8-15 上拉输入

GPIOB->ODR=0XFFFF;     //全部输出高

LCD_RS_SET;

LCD_CS_CLR;

//读取数据(读GRAM时,需要读2次)

LCD_RD_CLR;    

LCD_RD_SET;

delay_us(2);//FOR 9320,延时2us    

//dummy READ

LCD_RD_CLR;    

delay_us(2);//FOR 8989,延时2us    

LCD_RD_SET;

t=DATAIN;  

LCD_CS_SET;

 

GPIOB->CRL=0X33333333; //PB0-7  上拉输出

GPIOB->CRH=0X33333333; //PB8-15 上拉输出

GPIOB->ODR=0XFFFF;    //全部输出高  

return t;

 

}

void LCD_init()                       //  LCD ID: 0xB505

{

LCD_WriteReg(0x0000,0x0000);

LCD_WriteReg(0x0000,0x0000);

LCD_WriteReg(0x0000,0x0000);

LCD_WriteReg(0x0000,0x0000);

LCD_WriteReg(0x00a4,0x0001);

delay_ms(20);   

LCD_WriteReg(0x0060,0x2700);

LCD_WriteReg(0x0008,0x0202);

LCD_WriteReg(0x0030,0x0214);

LCD_WriteReg(0x0031,0x3715);

LCD_WriteReg(0x0032,0x0604);

LCD_WriteReg(0x0033,0x0e16);

LCD_WriteReg(0x0034,0x2211);

LCD_WriteReg(0x0035,0x1500);

LCD_WriteReg(0x0036,0x8507);

LCD_WriteReg(0x0037,0x1407);

LCD_WriteReg(0x0038,0x1403);

LCD_WriteReg(0x0039,0x0020);

LCD_WriteReg(0x0090,0x001a);

LCD_WriteReg(0x0010,0x0000);

LCD_WriteReg(0x0011,0x0007);

LCD_WriteReg(0x0012,0x0000);

LCD_WriteReg(0x0013,0x0000);

delay_ms(20);

LCD_WriteReg(0x0010,0x0730);

LCD_WriteReg(0x0011,0x0137);

delay_ms(20);

LCD_WriteReg(0x0012,0x01b8);

delay_ms(20);

LCD_WriteReg(0x0013,0x0f00);

LCD_WriteReg(0x002a,0x0080);

LCD_WriteReg(0x0029,0x0048);

delay_ms(20);

LCD_WriteReg(0x0001,0x0100);

LCD_WriteReg(0x0002,0x0700);

LCD_WriteReg(0x0003,0x1230);//LCD_WriteReg(0x0003,0x1230);

LCD_WriteReg(0x0008,0x0202);

LCD_WriteReg(0x000a,0x0000);

LCD_WriteReg(0x000c,0x0000);

LCD_WriteReg(0x000d,0x0000);

LCD_WriteReg(0x000e,0x0030);

LCD_WriteReg(0x0050,0x0000);

LCD_WriteReg(0x0051,0x00ef);

LCD_WriteReg(0x0052,0x0000);

LCD_WriteReg(0x0053,0x013f);

LCD_WriteReg(0x0060,0x2700);

LCD_WriteReg(0x0061,0x0001);

LCD_WriteReg(0x006a,0x0000);

//LCD_WriteReg(0x0080,0x0000);

//LCD_WriteReg(0x0081,0x0000);

LCD_WriteReg(0x0090,0X0011);

LCD_WriteReg(0x0092,0x0600);

LCD_WriteReg(0x0093,0x0402);

LCD_WriteReg(0x0094,0x0002);

delay_ms(20);

LCD_WriteReg(0x0007,0x0001);

delay_ms(20);

LCD_WriteReg(0x0007,0x0061);

LCD_WriteReg(0x0007,0x0173);

LCD_WriteReg(0x0020,0x0000);

LCD_WriteReg(0x0021,0x0000);   

LCD_WriteReg(0x00,0x22); 

LCD_LED=1;

}

//设置一种颜色************************************************************************************************

u16 color(u8 R,u8 G,u8 B)

{

u16  CRGB,RGB0,RGB1,RGB2,RGB3,RGB4;

RGB0=B;

RGB1=G;

RGB2=RGB1<<5;

RGB3=R;

RGB4=RGB3<<11;

CRGB =RGB0|RGB2|RGB4;

return CRGB;

}

//画一个点   ************************************************************************************************

void DrawPoint(u16 x,u16 y)

{

LCD_WriteReg(0x0020,x);  //X

LCD_WriteReg(0x0021,y);  //Y

LCD_WR_REG(0x22);

LCD_WR_DATA(F_COLOR);

}

//以背景色清屏 ************************************************************************************************

void clear_lcd()

{

u16  i,j;

LCD_WriteReg(0x0020,0x00);  //X

LCD_WriteReg(0x0021,0x00);  //Y

LCD_WR_REG(0x22);

for (i=0;i<320;i++) 

{

for (j=0;j<240;j++)

{

LCD_WR_DATA(B_COLOR);

}

}

}

 //透明背景色的显示字符函数  ***********************************************************************************

void SHOW_char_NBC(u8 Page,u8 List,u8 onechar)

{

 u8 i,j;

 u16 temp1,temp2,temp3,temp4;

 temp1=onechar-' ';

 temp3=F_COLOR;

 for (i=0;i<16;i++)

{

temp4=asc2_1608[temp1];

for (j=0;j<8;j++)

{

temp2 = temp4;

temp2 &= 0x01;

temp4 >>=1;

if(temp2==0)

{

F_COLOR=LCD_ReadPoint(List*8+j,Page*16+i);

}

else

    {

    F_COLOR=temp3;

}

LCD_WriteReg(0x0020,List*8+j);  //X

LCD_WriteReg(0x0021,Page*16+i);  //Y

LCD_WR_REG(0x22);

LCD_WR_DATA(F_COLOR);

}

}

F_COLOR=temp3;  //返回颜色值

}

//固定前影色和背景色的显示字符函数  ************************************************************************************************

void SHOW_char(u8 Page,u8 List,u8 onechar)    

{

u8 i,j;

u16 temp1,temp2,temp3,temp4;

temp1=onechar-' ';

temp3=F_COLOR;

LCD_WriteReg(0x0050,List*8);

LCD_WriteReg(0x0051,(List*8)+7);

LCD_WriteReg(0x0052,Page*16);

LCD_WriteReg(0x0053,(Page*16)+15);

LCD_WriteReg(0x0020,List*8);  //X

LCD_WriteReg(0x0021,Page*16);  //Y

LCD_WR_REG(0x22);

for (i=0;i<16;i++)

{

temp4=asc2_1608[temp1];

for (j=0;j<8;j++)

{

temp2 = temp4;

temp2 &= 0x01;

temp4 >>=1;

if(temp2==0)

{

F_COLOR=B_COLOR;

}

else

    {

    F_COLOR=temp3;

}

LCD_WR_DATA(F_COLOR);

}

}

    F_COLOR=temp3;

LCD_WriteReg(0x0050,0);    //开放回窗口

LCD_WriteReg(0x0051,239);

LCD_WriteReg(0x0052,0);

LCD_WriteReg(0x0053,319);

}

//用背景色刷出N个字符位  *****************************************************************************************

void Clear_line(u8 page,u8 list,u8 N)

{

u8 i;

for (i=0;i<N;i++)

{

SHOW_char(page,list,' ');

list=list+1;

}

}

//显示一串字符函数  ************************************************************************************************

void linechar_1608t(u8 Page,u8 List,u8 *pd)

{

     u8 temp;

 while((*pd)!='\0')

  {

  temp=*pd;

  SHOW_char_NBC(Page,List,temp);

  pd++;

  List=List+1;

 }

}

// 显示数字串   *******************************************************************************************

void count_show(u8 Page,u8 List,u16 input)

{

u16 temp0,temp1,temp2,temp3,temp4,A,B;

  temp0=input/10000;  //将脉冲个数转换成字符由1602输出 

  

   

  A=input%10000;

  temp1=A/1000;

  B=A%1000;

  temp2=B/100;

  A=B%100;

  temp3=A/10;

  B=A%10;

  temp4=B;

  

  if (temp0!=0)

   {

SHOW_char_NBC(Page,List,'0'+temp0);

List=List+1;

}

  if ((temp1!=0)|(temp0!=0))

   {

SHOW_char_NBC(Page,List,'0'+temp1);

List=List+1;

}

  if ((temp2!=0)|(temp1!=0)|(temp0!=0))

   {

SHOW_char_NBC(Page,List,'0'+temp2);

List=List+1;

}

  if ((temp3!=0)|(temp2!=0)|(temp1!=0)|(temp0!=0))

   {

SHOW_char_NBC(Page,List,'0'+temp3);

List=List+1;

}

  SHOW_char_NBC(Page,List,'0'+temp4);

}

// 主函数   ************************************************************************************************

int main(void)

{

  u8   k=' ';

  u16  i=0;

  Stm32_Clock_Init(9);

  delay_init(72);

  uart_init(72,9600);

  LCD_IO_Init();

  LCD_init();

  B_COLOR=color(7,14,7);

  clear_lcd();

  while (1) 

    {   

F_COLOR = color(0,60,0);

linechar_1608t(3,6,"This is char show\0");

count_show(5,12,i);

F_COLOR = color(0,60,0);

SHOW_char_NBC(9,14,k);  

k=k+1;

i=i+1;

if (k-' '>=95)k=' ';

if (i==50000)i=0;

delay_ms(50);

B_COLOR=color(7,14,7);

SHOW_char(9,14,' ');

Clear_line(3,6,18);

Clear_line(5,12,5);

delay_ms(50);

}

}

毛驴太君

跟着楼主混……

正点原子

不错.呵呵.

liurenyin

楼主，那么晚还在挑灯夜敲代码啊，太厉害了，注意身体啊……

chinafox

不是晚,是早~~~~~~~~~~~

liurenyin

回复【5楼】chinafox:
---------------------------------
楼主你给个邮箱吧，你的编译程序始终有个问题发给你看下，不知可否

chinafox

200580328@QQ.COM

lixupeng

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