[Fudan Micro FM33LG0 Series Development Board Review] Driving RGB TFT Display

mameng · Published on 2021-12-21 23:22

[Fudan Micro FM33LG0 Series Development Board Review] Driving RGB TFT Display [Copy link]

Today is the winter solstice, and I saw that everyone in my circle of friends is eating dumplings. I want to write a topic to wish everyone a happy winter solstice. I have a 320RGB*480 dots matrix TFT LCD module from Zhongjingyuan Electronic Technology Co., Ltd., and I want to use FM33LG0 to drive it:

PIN definition:

Logic timing diagram:

Ordinary port simulation:

void LCD_GPIO_Init(void)
{
	FL_GPIO_InitTypeDef GPIO_InitStruct = {0};
   
    FL_GPIO_ResetOutputPin(GPIOA, FL_GPIO_PIN_0|FL_GPIO_PIN_1|FL_GPIO_PIN_2|FL_GPIO_PIN_3|FL_GPIO_PIN_4|FL_GPIO_PIN_5|FL_GPIO_PIN_6|FL_GPIO_PIN_7);
    
    GPIO_InitStruct.pin = FL_GPIO_PIN_0|FL_GPIO_PIN_1|FL_GPIO_PIN_2|FL_GPIO_PIN_3|FL_GPIO_PIN_4|FL_GPIO_PIN_6|FL_GPIO_PIN_7;
    GPIO_InitStruct.mode = FL_GPIO_MODE_OUTPUT;
    GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
    GPIO_InitStruct.pull = FL_DISABLE;
    FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
	
	
    FL_GPIO_ResetOutputPin(GPIOB, FL_GPIO_PIN_5);
    GPIO_InitStruct.pin = FL_GPIO_PIN_5;
    GPIO_InitStruct.mode = FL_GPIO_MODE_INPUT ;
    GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
    GPIO_InitStruct.pull = FL_DISABLE;
    FL_GPIO_Init(GPIOB, &GPIO_InitStruct);
	
// 	GPIO_SetBits(GPIOA,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_6|GPIO_Pin_7);
}


#define LCD_SCLK_Clr() FL_GPIO_ResetOutputPin(GPIOA,FL_GPIO_PIN_0)//SCL=SCLK
#define LCD_SCLK_Set() FL_GPIO_SetOutputPin(GPIOA,FL_GPIO_PIN_0)

#define LCD_MOSI_Clr() FL_GPIO_ResetOutputPin(GPIOA,FL_GPIO_PIN_1)//SDA=MOSI
#define LCD_MOSI_Set() FL_GPIO_SetOutputPin(GPIOA,FL_GPIO_PIN_1)

#define LCD_RES_Clr()  FL_GPIO_ResetOutputPin(GPIOA,FL_GPIO_PIN_2)//RES
#define LCD_RES_Set()  FL_GPIO_SetOutputPin(GPIOA,FL_GPIO_PIN_2)

#define LCD_DC_Clr()   FL_GPIO_ResetOutputPin(GPIOA,FL_GPIO_PIN_3)//DC
#define LCD_DC_Set()   FL_GPIO_SetOutputPin(GPIOA,FL_GPIO_PIN_3)
 		     
#define LCD_BLK_Clr()  FL_GPIO_ResetOutputPin(GPIOA,FL_GPIO_PIN_4)//BLK
#define LCD_BLK_Set()  FL_GPIO_SetOutputPin(GPIOA,FL_GPIO_PIN_4)

#define ZK_MISO        FL_GPIO_ReadInputPort(GPIOB)//MISO  读取字库数据引脚
//                       	GPIO_ReadInputDataBit											
//GPIO_ResetBits
#define LCD_CS_Clr()   FL_GPIO_ResetOutputPin(GPIOA,FL_GPIO_PIN_6)//CS
#define LCD_CS_Set()   FL_GPIO_SetOutputPin(GPIOA,FL_GPIO_PIN_6)

#define ZK_CS_Clr()     FL_GPIO_ResetOutputPin(GPIOA,FL_GPIO_PIN_7)
#define ZK_CS_Set()     FL_GPIO_SetOutputPin(GPIOA,FL_GPIO_PIN_7)

Driver code:

#include "lcd_init.h"


void LCD_GPIO_Init(void)
{
	FL_GPIO_InitTypeDef GPIO_InitStruct = {0};
   
    FL_GPIO_ResetOutputPin(GPIOA, FL_GPIO_PIN_0|FL_GPIO_PIN_1|FL_GPIO_PIN_2|FL_GPIO_PIN_3|FL_GPIO_PIN_4|FL_GPIO_PIN_5|FL_GPIO_PIN_6|FL_GPIO_PIN_7);
    
    GPIO_InitStruct.pin = FL_GPIO_PIN_0|FL_GPIO_PIN_1|FL_GPIO_PIN_2|FL_GPIO_PIN_3|FL_GPIO_PIN_4|FL_GPIO_PIN_6|FL_GPIO_PIN_7;
    GPIO_InitStruct.mode = FL_GPIO_MODE_OUTPUT;
    GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
    GPIO_InitStruct.pull = FL_DISABLE;
    FL_GPIO_Init(GPIOA, &GPIO_InitStruct);
	
	
    FL_GPIO_ResetOutputPin(GPIOB, FL_GPIO_PIN_5);
    GPIO_InitStruct.pin = FL_GPIO_PIN_5;
    GPIO_InitStruct.mode = FL_GPIO_MODE_INPUT ;
    GPIO_InitStruct.outputType = FL_GPIO_OUTPUT_PUSHPULL;
    GPIO_InitStruct.pull = FL_DISABLE;
    FL_GPIO_Init(GPIOB, &GPIO_InitStruct);
	
// 	GPIO_SetBits(GPIOA,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_6|GPIO_Pin_7);
}


/******************************************************************************
      函数说明：LCD串行数据写入函数
      入口数据：dat  要写入的串行数据
      返回值：  无
******************************************************************************/
void LCD_Writ_Bus(u8 dat) 
{	
	u8 i;
	LCD_CS_Clr();
	for(i=0;i<8;i++)
	{			  
		LCD_SCLK_Clr();
		if(dat&0x80)
		{
		   LCD_MOSI_Set();
		}
		else
		{
		   LCD_MOSI_Clr();
		}
		LCD_SCLK_Set();
		dat<<=1;
	}	
  LCD_CS_Set();	
}


/******************************************************************************
      函数说明：LCD写入数据
      入口数据：dat 写入的数据
      返回值：  无
******************************************************************************/
void LCD_WR_DATA8(u8 dat)
{
	LCD_Writ_Bus(dat);
}


/******************************************************************************
      函数说明：LCD写入数据
      入口数据：dat 写入的数据
      返回值：  无
******************************************************************************/
void LCD_WR_DATA(u32 dat)
{
	LCD_Writ_Bus(dat>>16);
	LCD_Writ_Bus(dat>>8);
	LCD_Writ_Bus(dat);
}


/******************************************************************************
      函数说明：LCD写入命令
      入口数据：dat 写入的命令
      返回值：  无
******************************************************************************/
void LCD_WR_REG(u8 dat)
{
	LCD_DC_Clr();//写命令
	LCD_Writ_Bus(dat);
	LCD_DC_Set();//写数据
}


/******************************************************************************
      函数说明：设置起始和结束地址
      入口数据：x1,x2 设置列的起始和结束地址
                y1,y2 设置行的起始和结束地址
      返回值：  无
******************************************************************************/
void LCD_Address_Set(u16 x1,u16 y1,u16 x2,u16 y2)
{
	LCD_WR_REG(0x2a);//列地址设置
	LCD_WR_DATA8(x1>>8);
	LCD_WR_DATA8(x1);
	LCD_WR_DATA8(x2>>8);
	LCD_WR_DATA8(x2);
	LCD_WR_REG(0x2b);//行地址设置
	LCD_WR_DATA8(y1>>8);
	LCD_WR_DATA8(y1);
	LCD_WR_DATA8(y2>>8);
	LCD_WR_DATA8(y2);
	LCD_WR_REG(0x2c);//储存器写
}

void LCD_Init(void)
{
	LCD_GPIO_Init();//初始化GPIO
	
	LCD_RES_Clr();//复位
	FL_DelayMs(100);
	LCD_RES_Set();
	FL_DelayMs(100);
	
	LCD_BLK_Set();//打开背光
  FL_DelayMs(100);
	
	//************* Start Initial Sequence **********//
	LCD_WR_REG(0x11); //Sleep out 
	FL_DelayMs(120);              //Delay 120ms 
	//************* Start Initial Sequence **********// 
	LCD_WR_REG(0XF2);
	LCD_WR_DATA8(0x18);
	LCD_WR_DATA8(0xA3);
	LCD_WR_DATA8(0x12);
	LCD_WR_DATA8(0x02);
	LCD_WR_DATA8(0XB2);
	LCD_WR_DATA8(0x12);
	LCD_WR_DATA8(0xFF);
	LCD_WR_DATA8(0x10);
	LCD_WR_DATA8(0x00);
	LCD_WR_REG(0XF8);
	LCD_WR_DATA8(0x21);
	LCD_WR_DATA8(0x04);
	LCD_WR_REG(0X13);

	LCD_WR_REG(0x36);    // Memory Access Control 
	if(USE_HORIZONTAL==0)LCD_WR_DATA8(0x08);
	else if(USE_HORIZONTAL==1)LCD_WR_DATA8(0xC8);
	else if(USE_HORIZONTAL==2)LCD_WR_DATA8(0x78);
	else LCD_WR_DATA8(0xA8);

	LCD_WR_REG(0xB4);
	LCD_WR_DATA8(0x02);
	LCD_WR_REG(0xB6);
	LCD_WR_DATA8(0x02);
	LCD_WR_DATA8(0x22);
	LCD_WR_REG(0xC1);
	LCD_WR_DATA8(0x41);
	LCD_WR_REG(0xC5);
	LCD_WR_DATA8(0x00);
	LCD_WR_DATA8(0x18);



	LCD_WR_REG(0x3a);
	LCD_WR_DATA8(0x66);
	FL_DelayMs(50);



	LCD_WR_REG(0xE0);
	LCD_WR_DATA8(0x0F);
	LCD_WR_DATA8(0x1F);
	LCD_WR_DATA8(0x1C);
	LCD_WR_DATA8(0x0C);
	LCD_WR_DATA8(0x0F);
	LCD_WR_DATA8(0x08);
	LCD_WR_DATA8(0x48);
	LCD_WR_DATA8(0x98);
	LCD_WR_DATA8(0x37);
	LCD_WR_DATA8(0x0A);
	LCD_WR_DATA8(0x13);
	LCD_WR_DATA8(0x04);
	LCD_WR_DATA8(0x11);
	LCD_WR_DATA8(0x0D);
	LCD_WR_DATA8(0x00);
	LCD_WR_REG(0xE1);
	LCD_WR_DATA8(0x0F);
	LCD_WR_DATA8(0x32);
	LCD_WR_DATA8(0x2E);
	LCD_WR_DATA8(0x0B);
	LCD_WR_DATA8(0x0D);
	LCD_WR_DATA8(0x05);
	LCD_WR_DATA8(0x47);
	LCD_WR_DATA8(0x75);
	LCD_WR_DATA8(0x37);
	LCD_WR_DATA8(0x06);
	LCD_WR_DATA8(0x10);
	LCD_WR_DATA8(0x03);
	LCD_WR_DATA8(0x24);
	LCD_WR_DATA8(0x20);
	LCD_WR_DATA8(0x00);
	LCD_WR_REG(0x11);
	FL_DelayMs(120);
	LCD_WR_REG(0x29);
	LCD_WR_REG(0x2C);
}

main

Display_GB2312_String(10,50,32, "祝大家冬至吃水饺",WHITE,BLACK);
		 Display_GB2312_String(10,100,32, "祝大家冬至吃水饺",RED,BLACK);
		Display_GB2312_String(10,150,32, "祝大家冬至吃水饺",BLUE,BLACK);
		Display_GB2312_String(10,200,32, "祝大家冬至吃水饺",GREEN,BLACK);

The effect is as follows:

Test video:

Summary: The library function naming is slightly different from STM32 and other underlying drivers, which requires patience and meticulousness.

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[Fudan Micro FM33LG0 Series Development Board Review] Driving RGB TFT Display [Copy link]

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