270 lines
6.1 KiB
C
270 lines
6.1 KiB
C
#include "lcd_init.h"
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#include "delay.h"
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#include "spi.h"
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#include "tim.h"
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/******************************************************************************
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函数说明：LCD端口初始化
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入口数据：无
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返回值： 无
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******************************************************************************/
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void LCD_GPIO_Init(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure = {0};
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__HAL_RCC_GPIOB_CLK_ENABLE();
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GPIO_InitStructure.Pin = RES_PIN|CS_PIN|DC_PIN;
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GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; //推挽输出
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;//速度50MHz
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HAL_GPIO_Init(GPIOB, &GPIO_InitStructure); //初始化GPIOB
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HAL_GPIO_WritePin(GPIOB, RES_PIN|CS_PIN|DC_PIN, GPIO_PIN_SET);
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}
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/******************************************************************************
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函数说明：LCD串行数据写入函数(software SPI)
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入口数据：dat 要写入的串行数据
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返回值： 无
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******************************************************************************/
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void LCD_Writ_Bus(u8 dat)
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{
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//hard SPI
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HAL_SPI_Transmit(&hspi1,&dat,1,1);
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//soft SPI
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/*
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u8 i;
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for(i=0;i<8;i++)
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{
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LCD_SCLK_Clr();
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if(dat&0x80)
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{
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LCD_MOSI_Set();
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}
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else
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{
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LCD_MOSI_Clr();
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}
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LCD_SCLK_Set();
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dat<<=1;
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}
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*/
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}
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/******************************************************************************
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函数说明：LCD写入数据
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入口数据：dat 写入的数据
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返回值： 无
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******************************************************************************/
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void LCD_WR_DATA8(u8 dat)
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{
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LCD_Writ_Bus(dat);
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}
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/******************************************************************************
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函数说明：LCD写入数据
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入口数据：dat 写入的数据
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返回值： 无
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******************************************************************************/
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void LCD_WR_DATA(u16 dat)
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{
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// LCD_Writ_Bus(dat>>8);
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// LCD_Writ_Bus(dat);
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uint8_t temp[2];
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temp[0]=(dat>>8)&0xff;
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temp[1]=dat&0xff;
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HAL_SPI_Transmit(&hspi1,temp,2,1);
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}
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/******************************************************************************
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函数说明：LCD写入命令
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入口数据：dat 写入的命令
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返回值： 无
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******************************************************************************/
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void LCD_WR_REG(u8 dat)
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{
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LCD_DC_Clr();//写命令
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LCD_Writ_Bus(dat);
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LCD_DC_Set();//写数据
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}
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/******************************************************************************
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函数说明：设置起始和结束地址
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入口数据：x1,x2 设置列的起始和结束地址
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y1,y2 设置行的起始和结束地址
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返回值： 无
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******************************************************************************/
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void LCD_Address_Set(u16 x1,u16 y1,u16 x2,u16 y2)
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{
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LCD_WR_REG(0x2a);//列地址设置
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LCD_WR_DATA(x1);
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LCD_WR_DATA(x2);
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LCD_WR_REG(0x2b);//行地址设置
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LCD_WR_DATA(y1);
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LCD_WR_DATA(y2);
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LCD_WR_REG(0x2c);//储存器写
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}
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/******************************************************************************
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函数说明：LCD调节背光
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入口数据：dc,占空比,5%~100%
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返回值： 无
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******************************************************************************/
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void LCD_Set_Light(uint8_t dc)
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{
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if(dc>=5 && dc<=100)
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__HAL_TIM_SetCompare(&htim3,TIM_CHANNEL_3,dc*PWM_PERIOD/100);
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}
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/******************************************************************************
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函数说明：LCD关闭背光
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入口数据：无
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返回值： 无
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******************************************************************************/
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void LCD_Close_Light(void)
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{
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__HAL_TIM_SetCompare(&htim3,TIM_CHANNEL_3,0);
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//HAL_TIM_PWM_Stop(&htim3,TIM_CHANNEL_3);
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}
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/******************************************************************************
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函数说明：LCD开启背光
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入口数据：无
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返回值： 无
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******************************************************************************/
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void LCD_Open_Light(void)
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{
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HAL_TIM_PWM_Start(&htim3,TIM_CHANNEL_3);
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}
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/******************************************************************************
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函数说明：ST7789 SLEEP IN
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入口数据：无
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返回值： 无
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******************************************************************************/
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void LCD_ST7789_SleepIn(void)
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{
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LCD_WR_REG(0x10);
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delay_ms(100);
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}
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/******************************************************************************
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函数说明：ST7789 SLEEP OUT
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入口数据：无
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返回值： 无
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******************************************************************************/
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void LCD_ST7789_SleepOut(void)
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{
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LCD_WR_REG(0x11);
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delay_ms(100);
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}
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/******************************************************************************
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函数说明：LCD初始化
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入口数据：无
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返回值： 无
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******************************************************************************/
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void LCD_Init(void)
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{
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LCD_GPIO_Init();//初始化GPIO
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LCD_CS_Clr(); //chip select
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LCD_RES_Clr(); //复位
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delay_ms(100);
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LCD_RES_Set();
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delay_ms(100);
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LCD_WR_REG(0x11);
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delay_ms(120);
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LCD_WR_REG(0x36);
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if(USE_HORIZONTAL==0)LCD_WR_DATA8(0x00);
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else if(USE_HORIZONTAL==1)LCD_WR_DATA8(0xC0);
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else if(USE_HORIZONTAL==2)LCD_WR_DATA8(0x70);
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else LCD_WR_DATA8(0xA0);
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LCD_WR_REG(0x3A);
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LCD_WR_DATA8(0x05);
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LCD_WR_REG(0xB2);
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LCD_WR_DATA8(0x0C);
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LCD_WR_DATA8(0x0C);
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LCD_WR_DATA8(0x00);
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LCD_WR_DATA8(0x33);
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LCD_WR_DATA8(0x33);
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LCD_WR_REG(0xB7);
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LCD_WR_DATA8(0x35);
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LCD_WR_REG(0xBB);
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LCD_WR_DATA8(0x19);
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LCD_WR_REG(0xC0);
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LCD_WR_DATA8(0x2C);
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LCD_WR_REG(0xC2);
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LCD_WR_DATA8(0x01);
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LCD_WR_REG(0xC3);
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LCD_WR_DATA8(0x12);
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LCD_WR_REG(0xC4);
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LCD_WR_DATA8(0x20);
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LCD_WR_REG(0xC6);
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LCD_WR_DATA8(0x0F);
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LCD_WR_REG(0xD0);
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LCD_WR_DATA8(0xA4);
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LCD_WR_DATA8(0xA1);
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LCD_WR_REG(0xE0);
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LCD_WR_DATA8(0xD0);
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LCD_WR_DATA8(0x04);
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LCD_WR_DATA8(0x0D);
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LCD_WR_DATA8(0x11);
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LCD_WR_DATA8(0x13);
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LCD_WR_DATA8(0x2B);
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LCD_WR_DATA8(0x3F);
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LCD_WR_DATA8(0x54);
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LCD_WR_DATA8(0x4C);
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LCD_WR_DATA8(0x18);
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LCD_WR_DATA8(0x0D);
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LCD_WR_DATA8(0x0B);
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LCD_WR_DATA8(0x1F);
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LCD_WR_DATA8(0x23);
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LCD_WR_REG(0xE1);
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LCD_WR_DATA8(0xD0);
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LCD_WR_DATA8(0x04);
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LCD_WR_DATA8(0x0C);
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LCD_WR_DATA8(0x11);
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LCD_WR_DATA8(0x13);
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LCD_WR_DATA8(0x2C);
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LCD_WR_DATA8(0x3F);
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LCD_WR_DATA8(0x44);
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LCD_WR_DATA8(0x51);
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LCD_WR_DATA8(0x2F);
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LCD_WR_DATA8(0x1F);
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LCD_WR_DATA8(0x1F);
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LCD_WR_DATA8(0x20);
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LCD_WR_DATA8(0x23);
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LCD_WR_REG(0x21);
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LCD_WR_REG(0x29);
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}
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