LCD原理图
可以参考和使用官方的参考例程
配置完引脚后点击GENERATE CODE即可无需其他操作
将这两个头文件复制到
在给的案例路径下将lcd.c也复制到bsp路径下面
cpp
#include "my_main.h"
uint8_t led_sta=0x10;
char text[30];
void LED_Disp(uint8_t dsLED)
{
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_All,GPIO_PIN_SET);//所有LED熄灭（l小写）
HAL_GPIO_WritePin(GPIOC,dsLED<<8,GPIO_PIN_RESET);//左移8位：控制C8-15引脚，值为1的点亮
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_SET);//开锁存器
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_RESET);//关锁存器
}
void setup()
{
LED_Disp(0x00);//关掉所有LED
LCD_Init();//LCD初始化
LCD_Clear(Black);
LCD_SetBackColor(Black);
LCD_SetTextColor(White);
}
void loop()
{
/* 按键操作演示 */
if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_0)==GPIO_PIN_RESET)
{
HAL_Delay(10);
if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_0)==GPIO_PIN_RESET)
{
led_sta=(led_sta&0xfe)|0x01;
led_sta=(led_sta&0xfd)|0x00;
LED_Disp(led_sta);
}
}
if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_1)==GPIO_PIN_RESET)
{
HAL_Delay(10);
if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_1)==GPIO_PIN_RESET)
{
led_sta=(led_sta&0xfd)|0x02;
led_sta=(led_sta&0xfe)|0x00;
LED_Disp(led_sta);
//180°翻转屏幕
LCD_Clear(Black);
REG_932X_Init1();
}
}
/* LCD演示 */
sprintf(text," number:%x ",led_sta);
LCD_DisplayStringLine(Line8,(uint8_t *)text);//局部刷新
LCD_SetBackColor(Yellow);
sprintf(text," T:%d ",30);
LCD_DisplayStringLine(Line5,(uint8_t *)text);//局部刷新
LCD_SetBackColor(Black);
sprintf(text," X:A01 ");
LCD_DisplayStringLine(Line6,(uint8_t *)text);//局部刷新
}
lcd翻转屏幕---只改变了一行代码
cpp
//180°翻转屏幕
void REG_932X_Init1(void)
{
LCD_WriteReg(R227, 0x3008); // Set internal timing
LCD_WriteReg(R231, 0x0012); // Set internal timing
LCD_WriteReg(R239, 0x1231); // Set internal timing
//LCD_WriteReg(R1, 0x0000); // set SS and SM bit //0x0100 0000 0001
LCD_WriteReg(R1, 0x0100);
LCD_WriteReg(R2, 0x0700); // set 1 line inversion
LCD_WriteReg(R3, 0x1030); // set GRAM write direction and BGR=1.
LCD_WriteReg(R4, 0x0000); // Resize register
LCD_WriteReg(R8, 0x0207); // set the back porch and front porch
LCD_WriteReg(R9, 0x0000); // set non-display area refresh cycle ISC[3:0]
LCD_WriteReg(R10, 0x0000); // FMARK function
LCD_WriteReg(R12, 0x0000); // RGB interface setting
LCD_WriteReg(R13, 0x0000); // Frame marker Position
LCD_WriteReg(R15, 0x0000); // RGB interface polarity
/**************Power On sequence ****************/
LCD_WriteReg(R16, 0x0000); // SAP, BT[3:0], AP, DSTB, SLP, STB
LCD_WriteReg(R17, 0x0007); // DC1[2:0], DC0[2:0], VC[2:0]
LCD_WriteReg(R18, 0x0000); // VREG1OUT voltage
LCD_WriteReg(R19, 0x0000); // VDV[4:0] for VCOM amplitude
// Delay_Ms(200); // Delay 200 MS , Dis-charge capacitor power voltage
HAL_Delay(200);
LCD_WriteReg(R16, 0x1690); // SAP, BT[3:0], AP, DSTB, SLP, STB
LCD_WriteReg(R17, 0x0227); // R11H=0x0221 at VCI=3.3V, DC1[2:0], DC0[2:0], VC[2:0]
// Delay_Ms(50); // Delay 50ms
HAL_Delay(50);
LCD_WriteReg(R18, 0x001D); // External reference voltage= Vci;
// Delay_Ms(50); // Delay 50ms
HAL_Delay(50);
LCD_WriteReg(R19, 0x0800); // R13H=1D00 when R12H=009D;VDV[4:0] for VCOM amplitude
LCD_WriteReg(R41, 0x0014); // R29H=0013 when R12H=009D;VCM[5:0] for VCOMH
LCD_WriteReg(R43, 0x000B); // Frame Rate = 96Hz
// Delay_Ms(50); // Delay 50ms
HAL_Delay(50);
LCD_WriteReg(R32, 0x0000); // GRAM horizontal Address
LCD_WriteReg(R33, 0x0000); // GRAM Vertical Address
/* ----------- Adjust the Gamma Curve ---------- */
LCD_WriteReg(R48, 0x0007);
LCD_WriteReg(R49, 0x0707);
LCD_WriteReg(R50, 0x0006);
LCD_WriteReg(R53, 0x0704);
LCD_WriteReg(R54, 0x1F04);
LCD_WriteReg(R55, 0x0004);
LCD_WriteReg(R56, 0x0000);
LCD_WriteReg(R57, 0x0706);
LCD_WriteReg(R60, 0x0701);
LCD_WriteReg(R61, 0x000F);
/* ------------------ Set GRAM area --------------- */
LCD_WriteReg(R80, 0x0000); // Horizontal GRAM Start Address
LCD_WriteReg(R81, 0x00EF); // Horizontal GRAM End Address
LCD_WriteReg(R82, 0x0000); // Vertical GRAM Start Address
LCD_WriteReg(R83, 0x013F); // Vertical GRAM Start Address
//LCD_WriteReg(R96, 0x2700); // Gate Scan Line 0xA700 //0010 1010
LCD_WriteReg(R96, 0xA700);
LCD_WriteReg(R97, 0x0001); // NDL,VLE, REV
LCD_WriteReg(R106, 0x0000); // set scrolling line
/* -------------- Partial Display Control --------- */
LCD_WriteReg(R128, 0x0000);
LCD_WriteReg(R129, 0x0000);
LCD_WriteReg(R130, 0x0000);
LCD_WriteReg(R131, 0x0000);
LCD_WriteReg(R132, 0x0000);
LCD_WriteReg(R133, 0x0000);
/* -------------- Panel Control ------------------- */
LCD_WriteReg(R144, 0x0010);
LCD_WriteReg(R146, 0x0000);
LCD_WriteReg(R147, 0x0003);
LCD_WriteReg(R149, 0x0110);
LCD_WriteReg(R151, 0x0000);
LCD_WriteReg(R152, 0x0000);
/* Set GRAM write direction and BGR = 1 */
/* I/D=01 (Horizontal : increment, Vertical : decrement) */
/* AM=1 (address is updated in vertical writing direction) */
LCD_WriteReg(R3, 0x01018); //0x1018
LCD_WriteReg(R7, 0x0173); // 262K color and display ON
}