ART-Pi开发板 驱动TFT显示屏及功能界面设计
本帖最后由 jinglixixi 于 2020-12-18 00:52 编辑为实现桌面式智能家居控制系统的设计，TFT显示屏的使用是不可或缺的。本已购置一块2.8寸的触摸屏，但由于时间的紧张只能暂时舍弃了。就开发板所能直接使用的GPIO资源看，暂时将显示屏的连接关系指定为：CLK--- PH11DIN--- PH12RES---PH13DC --- PH15CS--- PH7BLK--- PH9
定义相关引脚输出高低电平的语句为：#define OLED_SCLK_Clr()HAL_GPIO_WritePin(GPIOH,GPIO_PIN_11,GPIO_PIN_RESET)//CLK#define OLED_SCLK_Set()HAL_GPIO_WritePin(GPIOH,GPIO_PIN_11,GPIO_PIN_SET)
#define OLED_SDIN_Clr()HAL_GPIO_WritePin(GPIOH,GPIO_PIN_12,GPIO_PIN_RESET)//DIN#define OLED_SDIN_Set()HAL_GPIO_WritePin(GPIOH,GPIO_PIN_12,GPIO_PIN_SET)
#define OLED_RST_Clr() HAL_GPIO_WritePin(GPIOH,GPIO_PIN_13,GPIO_PIN_RESET)//RES#define OLED_RST_Set()HAL_GPIO_WritePin(GPIOH,GPIO_PIN_13,GPIO_PIN_SET)
#define OLED_DC_Clr()HAL_GPIO_WritePin(GPIOH,GPIO_PIN_15,GPIO_PIN_RESET)//DC#define OLED_DC_Set()HAL_GPIO_WritePin(GPIOH,GPIO_PIN_15,GPIO_PIN_SET)
#define OLED_CS_Clr()HAL_GPIO_WritePin(GPIOH,GPIO_PIN_7,GPIO_PIN_RESET)//CS#define OLED_CS_Set()HAL_GPIO_WritePin(GPIOH,GPIO_PIN_7,GPIO_PIN_SET)
#define OLED_BLK_Clr() HAL_GPIO_WritePin(GPIOH,GPIO_PIN_9,GPIO_PIN_RESET)//BLK#define OLED_BLK_Set() HAL_GPIO_WritePin(GPIOH,GPIO_PIN_9,GPIO_PIN_SET)
配置相关引脚为输出功能的函数为：void app_TFT_init(void)
{
GPIO_InitTypeDef GPIO_Initure;
__HAL_RCC_GPIOH_CLK_ENABLE();
GPIO_Initure.Pin=GPIO_PIN_7|GPIO_PIN_9|GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_15;
GPIO_Initure.Mode=GPIO_MODE_OUTPUT_PP;
GPIO_Initure.Speed=GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOH,&GPIO_Initure);
LCD_LED_High();
}
TFT显示屏的初始化函数为：void Lcd_Init(void)
{
LCD_REST_Low();
delay_ms(20);
LCD_REST_High();
delay_ms(20);
LCD_CS_Low();
LCD_WR_REG(0xCB);
LCD_WR_DATA8(0x39);
LCD_WR_DATA8(0x2C);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x34);
LCD_WR_DATA8(0x02);
LCD_WR_REG(0xCF);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0XC1);
LCD_WR_DATA8(0X30);
LCD_WR_REG(0xE8);
LCD_WR_DATA8(0x85);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x78);
LCD_WR_REG(0xEA);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x00);
LCD_WR_REG(0xED);
LCD_WR_DATA8(0x64);
LCD_WR_DATA8(0x03);
LCD_WR_DATA8(0X12);
LCD_WR_DATA8(0X81);
LCD_WR_REG(0xF7);
LCD_WR_DATA8(0x20);
LCD_WR_REG(0xC0);
LCD_WR_DATA8(0x23);
LCD_WR_REG(0xC1);
LCD_WR_DATA8(0x10);
LCD_WR_REG(0xC5);
LCD_WR_DATA8(0x3e);
LCD_WR_DATA8(0x28);
LCD_WR_REG(0xC7);
LCD_WR_DATA8(0x86);
LCD_WR_REG(0x36);
LCD_WR_DATA8(0x48);
LCD_WR_REG(0x3A);
LCD_WR_DATA8(0x55);
LCD_WR_REG(0xB1);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x18);
LCD_WR_REG(0xB6);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x82);
LCD_WR_DATA8(0x27);
LCD_WR_REG(0xF2);
LCD_WR_DATA8(0x00);
LCD_WR_REG(0x26);
LCD_WR_DATA8(0x01);
LCD_WR_REG(0xE0);
LCD_WR_DATA8(0x0F);
LCD_WR_DATA8(0x31);
LCD_WR_DATA8(0x2B);
LCD_WR_DATA8(0x0C);
LCD_WR_DATA8(0x0E);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x4E);
LCD_WR_DATA8(0xF1);
LCD_WR_DATA8(0x37);
LCD_WR_DATA8(0x07);
LCD_WR_DATA8(0x10);
LCD_WR_DATA8(0x03);
LCD_WR_DATA8(0x0E);
LCD_WR_DATA8(0x09);
LCD_WR_DATA8(0x00);
LCD_WR_REG(0XE1);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x0E);
LCD_WR_DATA8(0x14);
LCD_WR_DATA8(0x03);
LCD_WR_DATA8(0x11);
LCD_WR_DATA8(0x07);
LCD_WR_DATA8(0x31);
LCD_WR_DATA8(0xC1);
LCD_WR_DATA8(0x48);
LCD_WR_DATA8(0x08);
LCD_WR_DATA8(0x0F);
LCD_WR_DATA8(0x0C);
LCD_WR_DATA8(0x31);
LCD_WR_DATA8(0x36);
LCD_WR_DATA8(0x0F);
LCD_WR_REG(0x11);
delay_ms(120);
LCD_WR_REG(0x29);
LCD_WR_REG(0x2c);
}
实现图标显示的函数为：void show_tbh(unsigned int x,unsigned int y,unsigned int n) //200*200
{
unsigned int i,j,k;
unsigned int da;
k=0;
for(i=0;i<50;i++)
{
for(j=0;j<50;j++)
{
if(n==0) da=gImage_tb;
if(n==1) da=gImage_pwm;
if(n==2) da=gImage_rtc;
if(n==3) da=gImage_adc;
if(n==4) da=gImage_tft;
if(n==5) da=gImage_sz;
if(n==6) da=gImage_kz;
if(n==7) da=gImage_dht;
da<<=8;
if(n==0) da|=gImage_tb;
if(n==1) da|=gImage_pwm;
if(n==2) da|=gImage_rtc;
if(n==3) da|=gImage_adc;
if(n==4) da|=gImage_tft;
if(n==5) da|=gImage_sz;
if(n==6) da|=gImage_kz;
if(n==7) da|=gImage_dht;
POINT_COLOR=da;
LCD_DrawPoint(x+i,y+j);
k++;
}
}
}
实现界面显示效果的主程序是：int main(void)
{
Cache_Enable();
HAL_Init();
Stm32_Clock_Init(160,5,2,4);
delay_init(400);
delay_ms(200);
app_TFT_init();
Lcd_Init();
LCD_Clear(WHITE);
show_tbh(20,240,0);
showhanzi16h(80,280,3,0);
showhanzi16h(80,264,4,0);
show_tbh(20,180,1);
show_tbh(20,120,2);
show_tbh(20,60,3);
showhanzi16h(80,100,5,1);
showhanzi16h(80,84,6,1);
show_tbh(120,60,4);
show_tbh(120,120,5);
show_tbh(120,180,6);
show_tbh(120,240,7);
showhanzi16h(180,280,13,1);
showhanzi16h(180,264,14,1);
showhanzi16h(180,220,11,1);
showhanzi16h(180,204,12,1);
showhanzi16h(180,160,9,1);
showhanzi16h(180,144,10,1);
showhanzi16h(180,100,7,1);
showhanzi16h(180,84,8,1);
BACK_COLOR=WHITE;
POINT_COLOR=RED;
LCD_ShowCharh(80,160,'R',1);
LCD_ShowCharh(80,152,'T',1);
LCD_ShowCharh(80,144,'C',1);
LCD_ShowCharh(80,220,'P',1);
LCD_ShowCharh(80,212,'W',1);
LCD_ShowCharh(80,204,'M',1);
delay_ms(2000);
LED_Init();
while(1)
{
LED2(1);
delay_ms(500);
LED2(0);
delay_ms(500);
}
}
经程序的编译下载，其显示效果图1和图2所示。图1 功能选择界面
图2 功能选择
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