SPI介面的ST7735 TFT顯示器初始化
長庚大學
void ST7735_Init(void)
{
CS_Pin_LOW;
RES_Pin_LOW;
delay_ms(5);
RES_Pin_HIGH;
SendCommand(0x01);//Software Reset
delay_ms(150);
SendCommand(0x11);//Sleep Out
delay_ms(500);
SendCommand(0x3A);//Interface Pixel Format
SendParameter(0x05);//16-bit/pixel
delay_ms(10);
SendCommand(0xB1);//Frame Rate Control (In normal mode/ Full colors)
SendParameter(0x00);//RTNA=0Frame rate=fosc/((RTNA + 20) x (LINE + FPA + BPA)) fosc = 333kHz
SendParameter(0x06);//FPA=6
SendParameter(0x03);//BPA=3
delay_ms(10);
SendCommand(0x36);//Memory Data Access Control
SendParameter(0x08);//MY=0 Row Address Order MX=0 Column Address Order MV=0 Row/Column Exchange ML=0 Vertical Refresh Order RGB=1 RGB-BGR ORDER MH=0 Horizontal Refresh Order
SendCommand(0xB6);//Display Function
SendParameter(0x15);//Amount of non-overlap of the gate output 1 clock cycle Delay amount form gate signal rising edge of the source output 1 clock cycle Equalizing period 3 clock cycle
SendParameter(0x02);//Gate output in a non-display area Normal scan Source output on non-display area Positive:AGND Negative:AGND VCOM output on non-display area Positive:AGND Negative:AGND
delay_ms(10);
SendCommand(0xB4);//Display Inversion Control
SendParameter(0x00);//Inversion setting in full Colors normal mode:Line InversionInversion setting in Idle mode:Line InversionInversion setting in full Colors partial mode:Line Inversion
SendCommand(0xC0);//Power Control 1
SendParameter(0x02);//GVDD:4.7
SendParameter(0x70);//AVDD:1.0uA
delay_ms(10);
SendCommand(0xC1);//Power Control 2
SendParameter(0x05);//VGH:6X 14.7VGL:-3X -7.35
/*
SendCommand(0xC2); //ERROR
SendParameter(0x01);
SendParameter(0x01);
*/
SendCommand(0xC5);//VCOM Control 1
SendParameter(0x3C);//VCOMH=4V
SendParameter(0x38);//VCOML=-1.1V
delay_ms(10);
SendCommand(0xFC);//Power Control 5 (in Partial mode + Idle mode)
SendParameter(0x11);
SendParameter(0x15);
SendCommand(0xE0);//Gamma ("+"Ppolarity) Correction Characteristics Setting
SendParameter(0x09);
SendParameter(0x16);
SendParameter(0x09);
SendParameter(0x20);
SendParameter(0x21);
SendParameter(0x1B);
SendParameter(0x13);
SendParameter(0x19);
SendParameter(0x17);
SendParameter(0x15);
SendParameter(0x1E);
SendParameter(0x2B);
SendParameter(0x04);
SendParameter(0x05);
SendParameter(0x02);
SendParameter(0x0E);
SendCommand(0xE1);//Gamma ("-"Ppolarity) Correction Characteristics Setting
SendParameter(0x0B);
SendParameter(0x14);
SendParameter(0x08);
SendParameter(0x1E);
SendParameter(0x22);
SendParameter(0x1D);
SendParameter(0x18);
SendParameter(0x1E);
SendParameter(0x1B);
SendParameter(0x1A);
SendParameter(0x24);
SendParameter(0x2B);
SendParameter(0x06);
SendParameter(0x06);
SendParameter(0x02);
SendParameter(0x0F);
SendCommand(0x2A);//Column Address Set
SendParameter(0x00);
SendParameter(0x00);
SendParameter(0x00);
SendParameter(0x7F);
SendCommand(0x2B);//Row Address Set
SendParameter(0x00);
SendParameter(0x00);
SendParameter(0x00);
SendParameter(0x7F);
SendCommand(0x13);
CS_Pin_HIGH;
delay_ms(10);
CS_Pin_LOW;
SendCommand(0x29);
CS_Pin_HIGH;
delay_ms(100);
CS_Pin_LOW;
SendCommand(0x36);
SendParameter(0xC8);
CS_Pin_HIGH;
}
這程式碼是ST7735初始化的細節，請問你們上班時會自己刻初始化，還是只要用Sample Code，然後找到重點後修改成自己要的就好?
