楼主 # 2024-08-28 22:06:36 分享评论
- kemp
- 会员
- 注册时间： 2023-10-10
- 已发帖子： 25
- 积分： 43
使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
问题卡了两周，各位路过的大佬帮忙看看呗！感激不尽
使用T113S3 tina linux驱动ST7701S RGB屏幕，打开lvgl demo，显示分了两半的问题：
通过指令保存的图片是正常的：
echo 0 > /sys/class/disp/disp/attr/disp
echo /data/1.bmp > /sys/class/disp/disp/attr/capture_dump
厂家给的参数：
HS:10 HBP:30 HFP: 50
VS:2 VBP:15 VFP:17
400*960
DTS部分配置如下：
&disp {
disp_init_enable = <1>;
disp_mode = <0>;
screen0_output_type = <1>;
screen0_output_mode = <4>;
screen1_output_type = <3>;
screen1_output_mode = <4>;
screen1_output_format = <0>;
screen1_output_bits = <0>;
screen1_output_eotf = <4>;
screen1_output_cs = <257>;
screen1_output_range = <2>;
screen1_output_scan = <0>;
screen1_output_aspect_ratio = <8>;
dev0_output_type = <1>;
dev0_output_mode = <4>;
dev0_screen_id = <0>;
dev0_do_hpd = <0>;
dev1_output_type = <4>;
dev1_output_mode = <10>;
dev1_screen_id = <1>;
dev1_do_hpd = <1>;
def_output_dev = <0>;
disp_rotation_used = <1>;
degree0 = <0>;
fb0_format = <0>;
fb0_buffer_num = <1>;
fb0_width = <400>;
fb0_height = <960>; /*read from lcd*/
fb1_format = <0>;
fb1_width = <0>;
fb1_height = <0>;
chn_cfg_mode = <1>;
disp_para_zone = <1>;
};&lcd0 {
lcd_used = <1>;
lcd_driver_name = "st7701s_rgb";
lcd_if = <0>; //0:rgb 1:CPU/I80 2:保留 3:lvds 4:dsi
lcd_hv_if = <0>; //0：并行rgb
lcd_width = <46>; //物理宽度 mm
lcd_height = <110>; //物理高度 mm
lcd_x = <400>; //宽度
lcd_y = <960>; //高度
lcd_dclk_freq = <29>; //屏幕时钟 MHz
lcd_hbp = <40>; //hbp+hspw,从时序图可以看到hspw包含在hbp中，所以只需要填写hbp的值
lcd_ht = <490>; //lcd_x+hs+hbp+hspw
lcd_hspw = <10>; //hspw
lcd_vbp = <17>; //vbp+vspw
lcd_vt = <994>; //lcd_y+vs+vbp+vspw
lcd_vspw = <2>; //vspw
lcd_backlight = <50>; //背光默认亮度
lcd_pwm_used = <1>; //使用背光
lcd_pwm_ch = <7>; //使用pwm通道7
lcd_pwm_freq = <10000>; //PWM 频率，单位 Hz
lcd_pwm_pol = <0>; //背光 PWM 的极性
lcd_pwm_max_limit = <255>;
lcd_bright_curve_en = <0>;
lcd_dsi_if = <0>;
lcd_dsi_lane = <4>;
lcd_lvds_if = <0>;
lcd_lvds_colordepth = <0>;
lcd_lvds_mode = <0>;
lcd_frm = <1>;
lcd_hv_clk_phase = <0>;
lcd_hv_sync_polarity= <0>;
lcd_io_phase = <0x0000>;
lcd_gamma_en = <0>;
lcd_bright_curve_en = <0>;
lcd_cmap_en = <0>;
lcd_fsync_en = <0>;
lcd_fsync_act_time = <1000>;
lcd_fsync_dis_time = <1000>;
lcd_fsync_pol = <0>;
deu_mode = <0>;
lcdgamma4iep = <22>;
smart_color = <90>;
pinctrl-0 = <&rgb18_pins_a>;
pinctrl-1 = <&rgb18_pins_b>;
lcd_gpio_0 = <&pio PE 9 GPIO_ACTIVE_HIGH>; //RST
lcd_gpio_1 = <&pio PE 8 GPIO_ACTIVE_HIGH>; //CS
lcd_gpio_2 = <&pio PE 7 GPIO_ACTIVE_HIGH>; //SDA
lcd_gpio_3 = <&pio PE 6 GPIO_ACTIVE_HIGH>; //SCK
};驱动源码如下：
#include "st7701s_rgb.h"
#include "default_panel.h"
//s32 sunxi_lcd_gpio_set_value(u32 screen_id, u32 io_index, u32 value)
#define st7701s_spi_scl_1 sunxi_lcd_gpio_set_value(0, 3, 1)
#define st7701s_spi_scl_0 sunxi_lcd_gpio_set_value(0, 3, 0)
#define st7701s_spi_sdi_1 sunxi_lcd_gpio_set_value(0, 2, 1)
#define st7701s_spi_sdi_0 sunxi_lcd_gpio_set_value(0, 2, 0)
#define st7701s_spi_cs_1 sunxi_lcd_gpio_set_value(0, 1, 1)
#define st7701s_spi_cs_0 sunxi_lcd_gpio_set_value(0, 1, 0)
#define st7701s_spi_reset_1 sunxi_lcd_gpio_set_value(0, 0, 1)
#define st7701s_spi_reset_0 sunxi_lcd_gpio_set_value(0, 0, 0)
static void LCD_power_on(u32 sel);
static void LCD_power_off(u32 sel);
static void LCD_bl_open(u32 sel);
static void LCD_bl_close(u32 sel);
static void LCD_panel_init(u32 sel);
static void LCD_panel_exit(u32 sel);
static void LCD_cfg_panel_info(panel_extend_para *info)
{
u32 i = 0, j = 0;
u32 items;
u8 lcd_gamma_tbl[][2] = {
/* {input value, corrected value} */
{0, 0},
{15, 15},
{30, 30},
{45, 45},
{60, 60},
{75, 75},
{90, 90},
{105, 105},
{120, 120},
{135, 135},
{150, 150},
{165, 165},
{180, 180},
{195, 195},
{210, 210},
{225, 225},
{240, 240},
{255, 255},
};
u32 lcd_cmap_tbl[2][3][4] = {
{
{LCD_CMAP_G0, LCD_CMAP_B1, LCD_CMAP_G2, LCD_CMAP_B3},
{LCD_CMAP_B0, LCD_CMAP_R1, LCD_CMAP_B2, LCD_CMAP_R3},
{LCD_CMAP_R0, LCD_CMAP_G1, LCD_CMAP_R2, LCD_CMAP_G3},
},
{
{LCD_CMAP_B3, LCD_CMAP_G2, LCD_CMAP_B1, LCD_CMAP_G0},
{LCD_CMAP_R3, LCD_CMAP_B2, LCD_CMAP_R1, LCD_CMAP_B0},
{LCD_CMAP_G3, LCD_CMAP_R2, LCD_CMAP_G1, LCD_CMAP_R0},
},
};
items = sizeof(lcd_gamma_tbl) / 2;
for (i = 0; i < items - 1; i++) {
u32 num = lcd_gamma_tbl[i + 1][0] - lcd_gamma_tbl[i][0];
for (j = 0; j < num; j++) {
u32 value = 0;
value =
lcd_gamma_tbl[i][1] +
((lcd_gamma_tbl[i + 1][1] -
lcd_gamma_tbl[i][1]) * j) / num;
info->lcd_gamma_tbl[lcd_gamma_tbl[i][0] + j] =
(value << 16) + (value << 8) + value;
}
}
info->lcd_gamma_tbl[255] =
(lcd_gamma_tbl[items - 1][1] << 16) +
(lcd_gamma_tbl[items - 1][1] << 8) + lcd_gamma_tbl[items - 1][1];
memcpy(info->lcd_cmap_tbl, lcd_cmap_tbl, sizeof(lcd_cmap_tbl));
}
static s32 LCD_open_flow(u32 sel)
{
printk("=====================LCD_open_flow\n");
/* open lcd power, and delay 50ms */
LCD_OPEN_FUNC(sel, LCD_power_on, 20);
/* open lcd power, than delay 200ms */
LCD_OPEN_FUNC(sel, LCD_panel_init, 20);
/* open lcd controller, and delay 100ms */
LCD_OPEN_FUNC(sel, sunxi_lcd_tcon_enable, 100);
/* open lcd backlight, and delay 0ms */
LCD_OPEN_FUNC(sel, LCD_bl_open, 0);
return 0;
}
static s32 LCD_close_flow(u32 sel)
{
/* close lcd backlight, and delay 0ms */
LCD_CLOSE_FUNC(sel, LCD_bl_close, 0);
/* close lcd controller, and delay 0ms */
LCD_CLOSE_FUNC(sel, sunxi_lcd_tcon_disable, 0);
/* open lcd power, than delay 200ms */
LCD_CLOSE_FUNC(sel, LCD_panel_exit, 200);
/* close lcd power, and delay 500ms */
LCD_CLOSE_FUNC(sel, LCD_power_off, 500);
return 0;
}
static void LCD_power_on(u32 sel)
{
printk("=====================LCD_power_on\n");
/* config lcd_power pin to open lcd power0 */
sunxi_lcd_power_enable(sel, 0);
sunxi_lcd_pin_cfg(sel, 1);
}
static void LCD_power_off(u32 sel)
{
sunxi_lcd_pin_cfg(sel, 0);
/* config lcd_power pin to close lcd power0 */
sunxi_lcd_power_disable(sel, 0);
}
static void LCD_bl_open(u32 sel)
{
printk("=====================LCD_bl_open\n");
sunxi_lcd_pwm_enable(sel);
sunxi_lcd_backlight_enable(sel);
}
static void LCD_bl_close(u32 sel)
{
/* config lcd_bl_en pin to close lcd backlight */
sunxi_lcd_backlight_disable(sel);
sunxi_lcd_pwm_disable(sel);
}
//three line 9bit mode
static void LCD_WRITE_DATA(u32 value)
{
u32 i;
st7701s_spi_cs_0;
st7701s_spi_sdi_1;
st7701s_spi_scl_0;
sunxi_lcd_delay_us(10);
st7701s_spi_scl_1;
for (i = 0; i < 8; i++) {
sunxi_lcd_delay_us(10);
if (value & 0x80)
st7701s_spi_sdi_1;
else
st7701s_spi_sdi_0;
value <<= 1;
sunxi_lcd_delay_us(10);
st7701s_spi_scl_0;
st7701s_spi_scl_1;
}
sunxi_lcd_delay_us(10);
st7701s_spi_cs_1;
}
static void LCD_WRITE_COMMAND(u32 value)
{
u32 i;
st7701s_spi_cs_0;
st7701s_spi_sdi_0;
st7701s_spi_scl_0;
sunxi_lcd_delay_us(10);
st7701s_spi_scl_1;
for (i = 0; i < 8; i++) {
sunxi_lcd_delay_us(10);
if (value & 0x80)
st7701s_spi_sdi_1;
else
st7701s_spi_sdi_0;
st7701s_spi_scl_0;
sunxi_lcd_delay_us(10);
st7701s_spi_scl_1;
value <<= 1;
}
sunxi_lcd_delay_us(10);
st7701s_spi_cs_1;
}
static void LCD_panel_init(u32 sel)
{
printk("=====================LCD_panel_init\n");
//ST7701S+AUO4.58
LCD_WRITE_COMMAND (0xFF);
LCD_WRITE_DATA (0x77);
LCD_WRITE_DATA (0x01);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x13);
LCD_WRITE_COMMAND (0xEF);
LCD_WRITE_DATA (0x08);
LCD_WRITE_COMMAND (0xFF);
LCD_WRITE_DATA (0x77);
LCD_WRITE_DATA (0x01);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x10);
LCD_WRITE_COMMAND (0xC0);
LCD_WRITE_DATA (0x77);
LCD_WRITE_DATA (0x00);
LCD_WRITE_COMMAND (0xC1);
LCD_WRITE_DATA (0x09);
LCD_WRITE_DATA (0x08);
LCD_WRITE_COMMAND (0xC2);//inv
LCD_WRITE_DATA (0x01);
LCD_WRITE_DATA (0x02);
LCD_WRITE_COMMAND (0xC3); //????
LCD_WRITE_DATA (0x02); //82 HVmode 02 DEmode
LCD_WRITE_COMMAND (0xCC);
LCD_WRITE_DATA (0x10);
LCD_WRITE_COMMAND (0xB0);
LCD_WRITE_DATA (0x40);
LCD_WRITE_DATA (0x14);
LCD_WRITE_DATA (0x59);
LCD_WRITE_DATA (0x10);
LCD_WRITE_DATA (0x12);
LCD_WRITE_DATA (0x08);
LCD_WRITE_DATA (0x03);
LCD_WRITE_DATA (0x09);
LCD_WRITE_DATA (0x05);
LCD_WRITE_DATA (0x1E);
LCD_WRITE_DATA (0x05);
LCD_WRITE_DATA (0x14);
LCD_WRITE_DATA (0x10);
LCD_WRITE_DATA (0x68);
LCD_WRITE_DATA (0x33);
LCD_WRITE_DATA (0x15);
LCD_WRITE_COMMAND (0xB1);
LCD_WRITE_DATA (0x40);
LCD_WRITE_DATA (0x08);
LCD_WRITE_DATA (0x53);
LCD_WRITE_DATA (0x09);
LCD_WRITE_DATA (0x11);
LCD_WRITE_DATA (0x09);
LCD_WRITE_DATA (0x02);
LCD_WRITE_DATA (0x07);
LCD_WRITE_DATA (0x09);
LCD_WRITE_DATA (0x1A);
LCD_WRITE_DATA (0x04);
LCD_WRITE_DATA (0x12);
LCD_WRITE_DATA (0x12);
LCD_WRITE_DATA (0x64);
LCD_WRITE_DATA (0x29);
LCD_WRITE_DATA (0x29);
LCD_WRITE_COMMAND (0xFF);
LCD_WRITE_DATA (0x77);
LCD_WRITE_DATA (0x01);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x11);
LCD_WRITE_COMMAND (0xB0);
LCD_WRITE_DATA (0x6D); //6D
LCD_WRITE_COMMAND (0xB1); //vcom
LCD_WRITE_DATA (0x1D);
LCD_WRITE_COMMAND (0xB2);
LCD_WRITE_DATA (0x87);
LCD_WRITE_COMMAND (0xB3);
LCD_WRITE_DATA (0x80);
LCD_WRITE_COMMAND (0xB5);
LCD_WRITE_DATA (0x49);
LCD_WRITE_COMMAND (0xB7);
LCD_WRITE_DATA (0x85);
LCD_WRITE_COMMAND (0xB8);
LCD_WRITE_DATA (0x20);
LCD_WRITE_COMMAND (0xC1);
LCD_WRITE_DATA (0x78);
LCD_WRITE_COMMAND (0xC2);
LCD_WRITE_DATA (0x78);
LCD_WRITE_COMMAND (0xD0);
LCD_WRITE_DATA (0x88);
LCD_WRITE_COMMAND (0xE0);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x02);
LCD_WRITE_COMMAND (0xE1);
LCD_WRITE_DATA (0x02);
LCD_WRITE_DATA (0x8C);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x03);
LCD_WRITE_DATA (0x8C);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x33);
LCD_WRITE_DATA (0x33);
LCD_WRITE_COMMAND (0xE2);
LCD_WRITE_DATA (0x33);
LCD_WRITE_DATA (0x33);
LCD_WRITE_DATA (0x33);
LCD_WRITE_DATA (0x33);
LCD_WRITE_DATA (0xC9);
LCD_WRITE_DATA (0x3C);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0xCA);
LCD_WRITE_DATA (0x3C);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_COMMAND (0xE3);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x33);
LCD_WRITE_DATA (0x33);
LCD_WRITE_COMMAND (0xE4);
LCD_WRITE_DATA (0x44);
LCD_WRITE_DATA (0x44);
LCD_WRITE_COMMAND (0xE5);
LCD_WRITE_DATA (0x05);
LCD_WRITE_DATA (0xCD);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x01);
LCD_WRITE_DATA (0xC9);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x07);
LCD_WRITE_DATA (0xCF);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x03);
LCD_WRITE_DATA (0xCB);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x82);
LCD_WRITE_COMMAND (0xE6);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x33);
LCD_WRITE_DATA (0x33);
LCD_WRITE_COMMAND (0xE7);
LCD_WRITE_DATA (0x44);
LCD_WRITE_DATA (0x44);
LCD_WRITE_COMMAND (0xE8);
LCD_WRITE_DATA (0x06);
LCD_WRITE_DATA (0xCE);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x02);
LCD_WRITE_DATA (0xCA);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x08);
LCD_WRITE_DATA (0xD0);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x04);
LCD_WRITE_DATA (0xCC);
LCD_WRITE_DATA (0x82);
LCD_WRITE_DATA (0x82);
LCD_WRITE_COMMAND (0xEB);
LCD_WRITE_DATA (0x08);
LCD_WRITE_DATA (0x01);
LCD_WRITE_DATA (0xE4);
LCD_WRITE_DATA (0xE4);
LCD_WRITE_DATA (0x88);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x40);
LCD_WRITE_COMMAND (0xEC);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_COMMAND (0xED);
LCD_WRITE_DATA (0xFF);
LCD_WRITE_DATA (0xF0);
LCD_WRITE_DATA (0x07);
LCD_WRITE_DATA (0x65);
LCD_WRITE_DATA (0x4F);
LCD_WRITE_DATA (0xFC);
LCD_WRITE_DATA (0xC2);
LCD_WRITE_DATA (0x2F);
LCD_WRITE_DATA (0xF2);
LCD_WRITE_DATA (0x2C);
LCD_WRITE_DATA (0xCF);
LCD_WRITE_DATA (0xF4);
LCD_WRITE_DATA (0x56);
LCD_WRITE_DATA (0x70);
LCD_WRITE_DATA (0x0F);
LCD_WRITE_DATA (0xFF);
LCD_WRITE_COMMAND (0xEF);
LCD_WRITE_DATA (0x10);
LCD_WRITE_DATA (0x0D);
LCD_WRITE_DATA (0x04);
LCD_WRITE_DATA (0x08);
LCD_WRITE_DATA (0x3F);
LCD_WRITE_DATA (0x1F);
LCD_WRITE_COMMAND (0xFF);
LCD_WRITE_DATA (0x77);
LCD_WRITE_DATA (0x01);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_DATA (0x00);
LCD_WRITE_COMMAND (0x11);
sunxi_lcd_delay_ms(120);
LCD_WRITE_COMMAND (0x35);
LCD_WRITE_DATA (0x00);
LCD_WRITE_COMMAND (0x3A);
LCD_WRITE_DATA (0x66);
//LCD_WRITE_COMMAND (0x11);
//sunxi_lcd_delay_ms(120);
LCD_WRITE_COMMAND (0x29);
return;
}
static void LCD_panel_exit(u32 sel)
{
return;
}
/* sel: 0:lcd0; 1:lcd1 */
static s32 LCD_user_defined_func(u32 sel, u32 para1, u32 para2, u32 para3)
{
return 0;
}
__lcd_panel_t st7701s_rgb_panel = {
/* panel driver name, must mach the lcd_drv_name in sys_config.fex */
.name = "st7701s_rgb",
.func = {
.cfg_panel_info = LCD_cfg_panel_info,
.cfg_open_flow = LCD_open_flow,
.cfg_close_flow = LCD_close_flow,
.lcd_user_defined_func = LCD_user_defined_func,
}
,
};离线
楼主 #1 2024-08-28 22:08:41 分享评论
- kemp
- 会员
- 注册时间： 2023-10-10
- 已发帖子： 25
- 积分： 43
Re: 使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
补充下运行时的屏参
root@TinaLinux:/data# cat /sys/class/disp/disp/attr/sys
screen 0:
de_rate 300000000 hz, ref_fps:60
mgr0: 400x960 fmt[rgb] cs[0x204] range[full] eotf[0x4] bits[8bits] err[0] force_sync[0] unblank direct_show[false] iommu[1]
dmabuf: cache[0] cache max[0] umap skip[0] umap skip max[4]
lcd output backlight( 50) fps:77.5 400x 960
err:0 skip:19 irq:1880 vsync:0 vsync_skip:0
BUF enable ch[1] lyr[0] z[16] prem[N] a[pixel 255] fmt[ 0] fb[ 400, 960; 400, 960; 400, 960] crop[ 0, 0, 400, 960] frame[ 0, 0, 400, 960] addr[ 0, 0, 0] flags[0x 0] trd[0,0]
depth[ 0] 离线
楼主 #3 2024-08-29 22:54:45 分享评论
- kemp
- 会员
- 注册时间： 2023-10-10
- 已发帖子： 25
- 积分： 43
Re: 使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
晕哥 说：
LCD_panel_init()
这个里面是初始化成 400*960 吗？
感谢晕哥指点，是的，这个LCD_panel_init函数中的参数是根据厂家提供的启动参数配置。
今天我改了下lcd_dclk_freq,从29改到20，现在显示是这样的，会不会是PCB设计的原因呢？
root@TinaLinux:/# cat /sys/class/disp/disp/attr/sys
screen 0:
de_rate 300000000 hz, ref_fps:47
mgr0: 400x960 fmt[rgb] cs[0x204] range[full] eotf[0x4] bits[8bits] err[0] force_sync[0] unblank direct_show[false] iommu[1]
dmabuf: cache[0] cache max[0] umap skip[0] umap skip max[12]
lcd output backlight( 50) fps:49.7 400x 960
err:0 skip:42 irq:1399 vsync:0 vsync_skip:0
BUF enable ch[1] lyr[0] z[16] prem[N] a[pixel 255] fmt[ 0] fb[ 400, 960; 400, 960; 400, 960] crop[ 0, 0, 400, 960] frame[ 0, 0, 400, 960] addr[ 0, 0, 0] flags[0x 0] trd[0,0]另外，界面抖动得比较厉害，左侧有明显颗粒
最近编辑记录 kemp (2024-08-30 11:37:13)
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楼主 #4 2024-08-29 22:56:45 分享评论
- kemp
- 会员
- 注册时间： 2023-10-10
- 已发帖子： 25
- 积分： 43
Re: 使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
另外，界面抖动得比较厉害，左侧有明显颗粒
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楼主 #5 2024-08-30 09:57:28 分享评论
- kemp
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Re: 使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
我对比了下ST7701S手册中，描述到支持最高分辨率480RGBX864 in resolution
但是LCD_panel_init初始的C0H部分，Display Line Setting的是960，不知道是否会有影响呢？
LNESET (C0h/C000h): Display Line Setting
LDE_EN=”0”,no add delta line , NL= (Line[6:0]+1)*8
LCD_WRITE_COMMAND (0xC0);
LCD_WRITE_DATA (0x77);
LCD_WRITE_DATA (0x00);
(0x77+1)*8 = 960
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#6 2024-08-30 10:35:56 分享评论
- 晕哥
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Re: 使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
我翻了一下 →→→ST7701S手册←←←
支持以下分辨率
Display Resolution
- 480*RGB (H) *960(V) (FWVGA)
- 480*RGB (H) *864(V) (WVGA)
- 480*RGB (H) *854(V)
- 480*RGB (H) *800(V)
- 480*RGB (H) *720(V)
- 480*RGB (H) *640(V) (VGA)
- 480*RGB (H) *360(V)如果没猜错的话，接受分辨率应该是480*RGB (H) *960(V) (FWVGA)
实际面板被剪裁到了 400*960，你问下供应商是不是这样？
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楼主 #7 2024-08-30 11:34:01 分享评论
- kemp
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Re: 使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
@晕哥
实际面板参数如下
LCM outline size 40.37 (H) x 117.90 (V) mm
Active area 36.77 (H) x 110.30 (V) mm
Number of pixels 320(H)X960(V)
Pixel arrangement RGB stripe - Pixel Pitch 114.9x114.9 um
Controller / Driver ST7701S
Data interface SPI3W+RGB18bit
我使用400x960是因为厂家给的参数是这样的：
HS:10 HBP:30 HFP: 50
VS:2 VBP:15 VFP:17
400*960
我这边拿到的ST7701S手册看，只能看到这样的分辨率，难道是旧版本？
Display Resolution
- 480*RGB (H) *864(V) (WVGA)
- 480*RGB (H) *854(V)
- 480*RGB (H) *800(V)
- 480*RGB (H) *720(V)
- 480*RGB (H) *640(V) (VGA)
- 480*RGB (H) *360(V)
最近编辑记录 kemp (2024-08-30 11:37:02)
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#8 2024-08-30 11:45:36 分享评论
- JUN626
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Re: 使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
有没有可能，哪一个环节400*960,写成了960*400？
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楼主 #9 2024-08-30 22:23:39 分享评论
- kemp
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Re: 使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
JUN626 说：
有没有可能，哪一个环节400*960,写成了960*400？
好像就两个地方，一个是DTS、另一个是屏驱文件的初始化参数，好像还真没有整错
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#10 2024-08-31 14:39:32 分享评论
- zzm24
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Re: 使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
关注后续,分辨率问题图像应该是斜纹,如果是压力测试花屏可能是DDR频率,这个控件轮廓是正确的,就是加上了一层雪花,怪哉
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楼主 #11 2024-08-31 20:11:07 分享评论
- kemp
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Re: 使用T113S3 tina linux驱动ST7701S RGB长条屏幕，显示lvgl demo分两半问题
zzm24 说：
关注后续,分辨率问题图像应该是斜纹,如果是压力测试花屏可能是DDR频率,这个控件轮廓是正确的,就是加上了一层雪花,怪哉
我目前没啥头绪，难道是硬件PCB设计原因？
但是echo 8 > /sys/class/disp/disp/attr/colorbar显示的，又正常很多，就是顶部显示有颗粒感而已。
LVGL应用部分改过不同LV_COLOR_DEPTH，都无法解决这个问题。
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