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Add register description for NT35510 initial registers #135

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Add register description for NT35510 initial registers #135

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7c90ec5
Add register documentation
DCSBL Nov 4, 2021
5b3c934
Use same description for gamma correction
DCSBL Nov 4, 2021
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83 changes: 61 additions & 22 deletions components/display/screen/controller_driver/nt35510/nt35510.c
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Original file line number Diff line number Diff line change
Expand Up @@ -252,22 +252,33 @@ esp_err_t lcd_nt35510_draw_bitmap(uint16_t x, uint16_t y, uint16_t w, uint16_t h
}

static void lcd_nt35510_init_reg(void)
{
LCD_WRITE_CMD(0x0100); // Software Reset
{
// Software Reset
LCD_WRITE_CMD(0x0100);
vTaskDelay(10 / portTICK_RATE_MS);

// Partial mode on
LCD_WRITE_CMD(0x1200);

// Enable manufacturer command set, select page 1
LCD_WRITE_REG(0xf000, 0x0055);
LCD_WRITE_REG(0xf001, 0x00aa);
LCD_WRITE_REG(0xf002, 0x0052);
LCD_WRITE_REG(0xf003, 0x0008);
LCD_WRITE_REG(0xf004, 0x0001);

// VGML and VGSP voltages (regulator output voltage VGMP/VGSP for positive gamma divider)
LCD_WRITE_REG(0xbc01, 0x0086);
LCD_WRITE_REG(0xbc02, 0x006a);

// VGML and VGSP voltages (regulator output voltage VGMP/VGSP for negative gamma divider)
LCD_WRITE_REG(0xbd01, 0x0086);
LCD_WRITE_REG(0xbd02, 0x006a);

// VCOM Offset Voltage
LCD_WRITE_REG(0xbe01, 0x0067);

// Gamma 2.2 Correction for Red (Positive)
LCD_WRITE_REG(0xd100, 0x0000);
LCD_WRITE_REG(0xd101, 0x005d);
LCD_WRITE_REG(0xd102, 0x0000);
Expand Down Expand Up @@ -321,6 +332,7 @@ static void lcd_nt35510_init_reg(void)
LCD_WRITE_REG(0xd132, 0x0003);
LCD_WRITE_REG(0xd133, 0x00cc);

// Gamma 2.2 Correction for Green (Positive)
LCD_WRITE_REG(0xd200, 0x0000);
LCD_WRITE_REG(0xd201, 0x005d);
LCD_WRITE_REG(0xd202, 0x0000);
Expand Down Expand Up @@ -374,6 +386,7 @@ static void lcd_nt35510_init_reg(void)
LCD_WRITE_REG(0xd232, 0x0003);
LCD_WRITE_REG(0xd233, 0x00cc);

// Gamma 2.2 Correction for Blue (Positive)
LCD_WRITE_REG(0xd300, 0x0000);
LCD_WRITE_REG(0xd301, 0x005d);
LCD_WRITE_REG(0xd302, 0x0000);
Expand Down Expand Up @@ -427,6 +440,7 @@ static void lcd_nt35510_init_reg(void)
LCD_WRITE_REG(0xd332, 0x0003);
LCD_WRITE_REG(0xd333, 0x00cc);

// Gamma 2.2 Correction for Red (Negative)
LCD_WRITE_REG(0xd400, 0x0000);
LCD_WRITE_REG(0xd401, 0x005d);
LCD_WRITE_REG(0xd402, 0x0000);
Expand Down Expand Up @@ -480,6 +494,7 @@ static void lcd_nt35510_init_reg(void)
LCD_WRITE_REG(0xd432, 0x0003);
LCD_WRITE_REG(0xd433, 0x00cc);

// Gamma 2.2 Correction for Green (Negative)
LCD_WRITE_REG(0xd500, 0x0000);
LCD_WRITE_REG(0xd501, 0x005d);
LCD_WRITE_REG(0xd502, 0x0000);
Expand Down Expand Up @@ -533,6 +548,7 @@ static void lcd_nt35510_init_reg(void)
LCD_WRITE_REG(0xd532, 0x0003);
LCD_WRITE_REG(0xd533, 0x00cc);

// Gamma 2.2 Correction for Blue (Negative)
LCD_WRITE_REG(0xd600, 0x0000);
LCD_WRITE_REG(0xd601, 0x005d);
LCD_WRITE_REG(0xd602, 0x0000);
Expand Down Expand Up @@ -586,54 +602,77 @@ static void lcd_nt35510_init_reg(void)
LCD_WRITE_REG(0xd632, 0x0003);
LCD_WRITE_REG(0xd633, 0x00cc);

// BT5 Power Control for VGLX
LCD_WRITE_REG(0xba00, 0x0024);
LCD_WRITE_REG(0xba01, 0x0024);
LCD_WRITE_REG(0xba02, 0x0024);

// BT4 Power Control for VGH
LCD_WRITE_REG(0xb900, 0x0024);
LCD_WRITE_REG(0xb901, 0x0024);
LCD_WRITE_REG(0xb902, 0x0024);

// Enable manufacturer command set, select page 0
LCD_WRITE_REG(0xf000, 0x0055);
LCD_WRITE_REG(0xf001, 0x00aa);
LCD_WRITE_REG(0xf002, 0x0052);
LCD_WRITE_REG(0xf003, 0x0008);
LCD_WRITE_REG(0xf004, 0x0000);

// Display Option Control
LCD_WRITE_REG(0xb100, 0x00cc);
LCD_WRITE_REG(0xB500, 0x0050);

LCD_WRITE_REG(0xbc00, 0x0005);
LCD_WRITE_REG(0xbc01, 0x0005);
LCD_WRITE_REG(0xbc02, 0x0005);

LCD_WRITE_REG(0xb800, 0x0001);
LCD_WRITE_REG(0xb801, 0x0003);
LCD_WRITE_REG(0xb802, 0x0003);
LCD_WRITE_REG(0xb803, 0x0003);

LCD_WRITE_REG(0xbd02, 0x0007);
LCD_WRITE_REG(0xbd03, 0x0031);
LCD_WRITE_REG(0xbe02, 0x0007);
LCD_WRITE_REG(0xbe03, 0x0031);
LCD_WRITE_REG(0xbf02, 0x0007);
LCD_WRITE_REG(0xbf03, 0x0031);

// Display Resolution Control
LCD_WRITE_REG(0xB500, 0x0050); // 480RGB X 800

// Inversion Driving Control
// 000: Column inversion
// 001: 1-dot inversion
// 010: 2-dot inversion
// 011: 3-dot inversion
// 100: 4-dot inversion
// 101: Zigzag inversion
LCD_WRITE_REG(0xbc00, 0x0005); // Normal mode
LCD_WRITE_REG(0xbc01, 0x0005); // Idle mode
LCD_WRITE_REG(0xbc02, 0x0005); // Partial mode

// EQ Control Function for Source Driver
LCD_WRITE_REG(0xb800, 0x0001); // EQ mode 1
LCD_WRITE_REG(0xb801, 0x0003); // Normal mode, 0.5us per step = 1.5 us
LCD_WRITE_REG(0xb802, 0x0003); // Idle mode, 0.5us per step = 1.5 us
LCD_WRITE_REG(0xb803, 0x0003); // Partial mode, 0.5us per step = 1.5 us

// Display Timing Control
LCD_WRITE_REG(0xbd02, 0x0007); // Normal mode
LCD_WRITE_REG(0xbd03, 0x0031); // Normal mode
LCD_WRITE_REG(0xbe02, 0x0007); // Idle mode
LCD_WRITE_REG(0xbe03, 0x0031); // Idle mode
LCD_WRITE_REG(0xbf02, 0x0007); // Parial mode
LCD_WRITE_REG(0xbf03, 0x0031); // Parial mode

// Undocumented registers
LCD_WRITE_REG(0xff00, 0x00aa);
LCD_WRITE_REG(0xff01, 0x0055);
LCD_WRITE_REG(0xff02, 0x0025);
LCD_WRITE_REG(0xff03, 0x0001);

// Undocumented registers
LCD_WRITE_REG(0xf304, 0x0011);
LCD_WRITE_REG(0xf306, 0x0010);
LCD_WRITE_REG(0xf308, 0x0000);

LCD_WRITE_REG(0x3500, 0x0000);
LCD_WRITE_REG(0x3A00, 0x0005);
//Display On
// Tearing effect line on
LCD_WRITE_REG(0x3500, 0x0000); // Only v-blanking information

// Interface Pixel Format
LCD_WRITE_REG(0x3A00, 0x0005); // I80 16-bit per pixel

// Display On
LCD_WRITE_CMD(0x2900);

// Out sleep
LCD_WRITE_CMD(0x1100);

// Write continue
LCD_WRITE_CMD(0x2C00);
}