void Address_set(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2) {
Lcd_Write_Com(0x2a); // Set_column_address
Lcd_Write_Data(x1>>8); // MSB
Lcd_Write_Data(x1); // LSB
Lcd_Write_Data(x2>>8); // MSB
Lcd_Write_Data(x2); // LSB
Lcd_Write_Com(0x2b); // Set_page_address
Lcd_Write_Data(y1>>8); // MSB
Lcd_Write_Data(y1); // LSB
Lcd_Write_Data(y2>>8); // MSB
Lcd_Write_Data(y2); // LSB
Lcd_Write_Com(0x2e); // Write_memory_start
Lcd_Write_Com(0x2c); // Write_memory_start
}
//设置坐标范围 与tft驱动IC有关
void Address_set(unsigned int x1,unsigned int y1,unsigned int x2,unsigned int y2)
{
Lcd_Write_Com(0x0050);Lcd_Write_Data(x1);//0x0050~0x0053 windows control
Lcd_Write_Com(0x0051);Lcd_Write_Data(x2);
Lcd_Write_Com(0x0052);Lcd_Write_Data(y1);
Lcd_Write_Com(0x0053);Lcd_Write_Data(y2);
Lcd_Write_Com(0x0020);Lcd_Write_Data(x1);
Lcd_Write_Com(0x0021);Lcd_Write_Data(y1);
Lcd_Write_Com(0x0022);
}
void tftDeviceCodeRead(uint8_t result[4]) {
CS_LOW;
Lcd_Write_Com(0xbf);
Lcd_Read_Data(); // dummy read
result[0] = Lcd_Read_Data(); // MIPI Alliance code
result[1] = Lcd_Read_Data(); // MIPI Alliance code
result[2] = Lcd_Read_Data(); // Device ID code
result[3] = Lcd_Read_Data(); // Device ID code
Lcd_Read_Data(); // Exit code (0xff)
CS_HIGH;
}
void Lcd_Init(void)
{
LCD_REST_1;
delay_us(5);
LCD_REST_0;
delay_us(5);
LCD_REST_1;
LCD_CS_1;
LCD_RD_1;
LCD_WR_1;
delay_us(5);
LCD_CS_0; //打开片选使能
Lcd_Write_Com_Data(0x00,0x0000);
Lcd_Write_Com_Data(0x00,0x0000);
Lcd_Write_Com_Data(0x00,0x0000);
Lcd_Write_Com_Data(0x00,0x0001);
Lcd_Write_Com_Data(0xA4,0x0001);
delay_us(10);
Lcd_Write_Com_Data(0x60,0x2700);
Lcd_Write_Com_Data(0x08,0x0808);
Lcd_Write_Com_Data(0x30,0x0214);
Lcd_Write_Com_Data(0x31,0x3715);
Lcd_Write_Com_Data(0x32,0x0604);
Lcd_Write_Com_Data(0x33,0x0E16);
Lcd_Write_Com_Data(0x34,0x2211);
Lcd_Write_Com_Data(0x35,0x1500);
Lcd_Write_Com_Data(0x36,0x8507);
Lcd_Write_Com_Data(0x37,0x1407);
Lcd_Write_Com_Data(0x38,0x1403);
Lcd_Write_Com_Data(0x39,0x0020);
Lcd_Write_Com_Data(0x90,0x0015);
Lcd_Write_Com_Data(0x10,0x0410);
Lcd_Write_Com_Data(0x11,0x0237);
Lcd_Write_Com_Data(0x29,0x0046);
Lcd_Write_Com_Data(0x2A,0x0046);
Lcd_Write_Com_Data(0x07,0x0000);
Lcd_Write_Com_Data(0x12,0x0189);
Lcd_Write_Com_Data(0x13,0x1100);
delay_us(150);
Lcd_Write_Com_Data(0x12,0x01B9);
Lcd_Write_Com_Data(0x01,0x0100);
Lcd_Write_Com_Data(0x02,0x0200);
Lcd_Write_Com_Data(0x03,0x1030);
Lcd_Write_Com_Data(0x09,0x0001);
Lcd_Write_Com_Data(0x0A,0x0000);
Lcd_Write_Com_Data(0x0D,0x0000);
Lcd_Write_Com_Data(0x0E,0x0030);
Lcd_Write_Com_Data(0x50,0x0000);
Lcd_Write_Com_Data(0x51,0x00EF);
Lcd_Write_Com_Data(0x52,0x0000);
Lcd_Write_Com_Data(0x53,0x013F);
Lcd_Write_Com_Data(0x61,0x0001);
Lcd_Write_Com_Data(0x6A,0x0000);
Lcd_Write_Com_Data(0x80,0x0000);
Lcd_Write_Com_Data(0x81,0x0000);
Lcd_Write_Com_Data(0x82,0x005F);
Lcd_Write_Com_Data(0x92,0x0100);
Lcd_Write_Com_Data(0x93,0x0701);
delay_us(80);
Lcd_Write_Com_Data(0x07,0x0100);
Lcd_Write_Com_Data(0x20,0x0000);
Lcd_Write_Com_Data(0x21,0x0000);
Lcd_Write_Com(0x0022);
LCD_CS_1; //关闭片选使能
}
void Lcd_Write_Com_Data(int com,int val) //发送数据命令
{
Lcd_Write_Com(com);
Lcd_Write_Data(val);
}
void tftInit() {
configurePorts();
RST_HIGH;
_delay_ms(5);
RST_LOW;
_delay_ms(15);
RST_HIGH;
_delay_ms(15);
CS_HIGH;
WR_HIGH;
CS_LOW;
Lcd_Write_Com(0x11); // Exit_sleep_mode
_delay_ms(20);
Lcd_Write_Com(0xD0); // Power_Setting
Lcd_Write_Data(0x07); // 0000 0111 - Vci1 = 1.0 * Vci
Lcd_Write_Data(0x42); // 0100 0010 - PON (generate VLOUT3), VGL=3*Vci1
Lcd_Write_Data(0x18); // 0001 1000 - VREG1OUT=Vci*1.95
Lcd_Write_Com(0xD1); // VCOM_Control
Lcd_Write_Data(0x00); // 0000 0000 - select D1h for VCM setting
Lcd_Write_Data(0x07); // 0000 0111 - VCOMH=0.72*VREG1OUT
Lcd_Write_Data(0x10); // 0001 0000 - VCOM_ampl=VREGOUT1*1.02
Lcd_Write_Com(0xD2); // Power_Setting_for_normal_mode
Lcd_Write_Data(0x01); // 0000 0001 - Gamma driver ampl. = Source driver ampl. = 1.0
Lcd_Write_Data(0x02); // 0000 0010 - fDCDC2=Fosc/16 ; fDCDC1=Fosc/4
Lcd_Write_Com(0xC0); // Panel_driving_setting
Lcd_Write_Data(0x10); // 0001 0000 - Grayscale inversion, gate driver pin arrangement
Lcd_Write_Data(0x3B); // 0011 1011 - (value+1)*8 = number of lines to drive (59+1=60, 60*8=480)
Lcd_Write_Data(0x00); // 0000 0000 - Scanning start position
// Missing parameter????? The following
// parameters are not consistent with the manual!
Lcd_Write_Data(0x02); // 0000 0010 - ??????
Lcd_Write_Data(0x11); // 0001 0001 - source output level in non-display area;
Lcd_Write_Com(0xC5); // Frame_rate_and_inversion_control
Lcd_Write_Data(0x03); // 0000 0011 - Frame rate 72 Hz
// This is the most important register, since it sets the
// way how the frame memory is set when it is written,
// and how the frame memory is mapped to the display panel
Lcd_Write_Com(0x36); // Set_address_mode
Lcd_Write_Data(0b00101000);
// |||||||+-- Vertical flip
// ||||||+--- Horizontal flip
// |||||+---- 0
// ||||+----- Pixels sent in RGB order
// |||+------ LCD refresh top to bottom
// ||+------- Page/Column order
// |+-------- Column address order left to right
// +--------- Page address order top to bottom
Lcd_Write_Com(0x3A); // Set_pixel_format
Lcd_Write_Data(0x55); // x101 x101 - 16 bit per pixel (65536 colors)
Lcd_Write_Com(0x2A); // Set_column_address
Lcd_Write_Data(0x00); // 0000 0000
Lcd_Write_Data(0x00); // 0000 0000 - Start column = 0
Lcd_Write_Data(0x01); // 0000 0001
Lcd_Write_Data(0x3F); // 0011 1111 - End column = 0x13F = 319
Lcd_Write_Com(0x2B); // Set_page_address
Lcd_Write_Data(0x00); // 0000 0000
Lcd_Write_Data(0x00); // 0000 0000 - Start page = 0
Lcd_Write_Data(0x01); // 0000 0001
Lcd_Write_Data(0xE0); // 1110 0000 - End page = 320 (???) (should be 1DF?)
_delay_ms(120);
Lcd_Write_Com(0x29); // Set_display_on
Lcd_Write_Com(0x2c); // Write_memory_start
}