st7701_3线SPI初始化代码.zip

/*本驱动适用于3线SPI驱动方式驱动ST7701驱动IC驱动的屏幕 3线为cs脚，scl脚，sda脚 根据时序要求，写命令或者数据时，一次需要下发9bit数据，先发1bit标记位d/c，表明发的是数据还是命令，0位命令，1位数据然后再高字节先发的方式，下发8bit数据 然后再高字节先发的方式，下发8bit数据 在sclk上升沿时取样，非上升沿时修改sda的值*/ #define mdelay(x) Delay1ms(x) #define UDELAY(x) Delay1us(x) #define SET_LSDA_LOW GPIO_ResetBits(GPIOA, GPIO_Pin_6) #define SET_LSDA_HIGH GPIO_SetBits(GPIOA, GPIO_Pin_6) #define SET_LSCK_LOW GPIO_ResetBits(GPIOA, GPIO_Pin_5) #define SET_LSCK_HIGH GPIO_SetBits(GPIOA, GPIO_Pin_5) #define SET_LSCE_LOW GPIO_ResetBits(GPIOA, GPIO_Pin_4) #define SET_LSCE_HIGH GPIO_SetBits(GPIOA, GPIO_Pin_4) static void start_lcd(void) { SET_LSCE_LOW; } static void stop_lcd(void) { SET_LSCE_HIGH; } static void write_lcd_datas(unsigned int data,unsigned int len) { int i; for(i=len-1;i>=0;i--) { SET_LSCK_LOW; if(data & (1<<i)) SET_LSDA_HIGH; else SET_LSDA_LOW; UDELAY(110); SET_LSCK_HIGH; UDELAY(110); } } static void write_lcd_cmd(unsigned char cmd) { unsigned int x; UDELAY(1); x = 0x0000|cmd; write_lcd_datas(x,9); } static void write_lcd_data(unsigned char data) { unsigned int x; UDELAY(1); x = 0x0100 | data; write_lcd_datas(x,9); } void write_cmd(u8 cmd) { write_lcd_cmd(cmd); } void write_data(u8 data) { write_lcd_data(data); } void LCD_Init(void) { GPIO_InitTypeDef GPIO_InitStructure; //GPIO u8 data; u32 id; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA , ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB , ENABLE); //3线SPI cs,scl,sda初始化 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOA, &GPIO_InitStructure); //复位脚初始化 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOB, &GPIO_InitStructure); //复位电平 GPIO_SetBits(GPIOB,GPIO_Pin_14); mdelay(1); GPIO_ResetBits(GPIOB,GPIO_Pin_14); mdelay(10); GPIO_SetBits(GPIOB,GPIO_Pin_14); mdelay(200); start_lcd();//拉低cs脚 write_cmd(0xff); write_data(0x77); write_data(0x01); write_data(0x00); write_data(0x00); write_data(0x11); write_cmd(0xd1); write_data(0x11); write_cmd(0x11);//OUT SLEEP mdelay(120); write_cmd(0x3a); // write_data(0x50); write_data(0x70); write_cmd(0xff); write_data(0x77); write_data(0x01); write_data(0x00); write_data(0x00); write_data(0x10); write_cmd(0xc0); //480*854// write_data(0xe9); write_data(0x03); write_cmd(0xc1); write_data(0x11); write_data(0x02); write_cmd(0xc2);//inversion selec write_data(0x37); write_data(0x08); write_cmd(0xc3);//set RGB mode write_data(0x00);//00 DE MODE 80 HV MODE write_data(0x00); write_data(0x00); //*********GAMMA SET******************* write_cmd(0xB0); write_data(0x00); write_data(0x0D); write_data(0x14); write_data(0x0D); write_data(0x10); write_data(0x05); write_data(0x02); write_data(0x08); write_data(0x08); write_data(0x1E); write_data(0x05); write_data(0x13); write_data(0x11); write_data(0xA3); write_data(0x29); write_data(0x18); write_cmd(0xB1); write_data(0x00); write_data(0x0C); write_data(0x14); write_data(0x0C); write_data(0x10); write_data(0x05); write_data(0x03); write_data(0x08); write_data(0x07); write_data(0x20); write_data(0x05); write_data(0x13); write_data(0x11); write_data(0xA4); write_data(0x29); write_data(0x18); ///************POWRE SET***************** write_cmd(0xff); write_data(0x77); write_data(0x01); write_data(0x00); write_data(0x00); write_data(0x11); write_cmd(0xb0); write_data(0x6C); write_cmd(0xb1); //VCOM write_data(0x3C); // write_data(0x48); write_cmd(0xb2); //VGH write_data(0x07); write_cmd(0xb3); write_data(0x80); write_cmd(0xb5); //VGL write_data(0x47); write_cmd(0xb7); write_data(0x8A); write_cmd(0xb8); //avdd write_data(0x20); write_cmd(0xC1); write_data(0x78); write_cmd(0xC2); write_data(0x78); write_cmd(0xD0); write_data(0x88); mdelay(100); //********GIP SET******************** write_cmd(0xff); write_data(0x77); write_data(0x01); write_data(0x00); write_data(0x00); write_data(0x11); write_cmd(0xE0); write_data(0x00); write_data(0x00); write_data(0x02); write_cmd(0xe1); write_data(0x08); write_data(0x00); write_data(0x0A); write_data(0x00); write_data(0x07); write_data(0x00); write_data(0x09); write_data(0x00); write_data(0x00); write_data(0x33); write_data(0x33); write_cmd(0xe2); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_data(0x00); write_cmd(0xe3); write_data(0x00); write_data(0x00); write_data(0x33); write_data(0x33); write_cmd(0xe4); write_data(0x44); write_data(0x44); write_cmd(0xe5); write_data(0x0E); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x10); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x0A); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x0C); write_data(0x60); write_data(0xA0); write_data(0xA0); write_cmd(0xe6); write_data(0x00); write_data(0x00); write_data(0x33); write_data(0x33); write_cmd(0xe7); write_data(0x44); write_data(0x44); write_cmd(0xe8); write_data(0x0D); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x0F); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x09); write_data(0x60); write_data(0xA0); write_data(0xA0); write_data(0x0B); write_data(0x60); write_data(0xA0); write_data(0xA0); write_cmd(0xeb); write_data(0x02); write_data(0x01); write_data(0xE4); write_data(0xE4); write_data(0x44); write_data(0x00); write_data(0x40); write_cmd(0xec); write_data(0x02); write_data(0x01); write_cmd(0xed); write_data(0xAB); write_data(0x89); write_data(0x76); write_data(0x54); write_data(0x01); write_data(0xff); write_data(0xff); write_data(0xff); write_data(0xff); write_data(0xff); write_data(0xff); write_data(0x10); write_data(0x45); write_data(0x67); write_data(0x98); write_data(0xBA); write_cmd(0xFF); write_data(0x77); write_data(0x01); write_data(0x00); write_data(0x00); write_data(0x00); write_cmd(0x36); write_data(0x00); //10-180 write_cmd(0x29); stop_lcd();//拉高cs脚 }