简介

基于泰山派开发板的平板

不失去其开发板地位

参考链接置顶

1.第09章.【立创·泰山派RK3566】项目案例 - 飞书云文档 (feishu.cn)

2.泰山派MIPI DSI 转 RGB 适配器 泰山派MIPI DSI 转 RGB 适配器 - 嘉立创EDA开源硬件平台 (oshwhub.com) 

3.ICN6211调试说明V0.4 - 文档之家 (doczj.com)

等

硬件部分

1.泰山派接入（上半部分为mipi接入，下半部分为触摸接入）

2.桥接芯片ICN6211

3.液晶屏驱动电压部分 适用于大部分7寸RGB屏幕

背光部分（此部分不焊接，泰山派的背光驱动电路适配此款屏幕背光）

4.屏幕接口 （左边接入屏幕GT911，右边排线接入显示排线）

5.去耦及屏幕功能选择电路.

6.如果复刻建议去除的部分（用两个测试点 代替就行）

7.其他说明：

  布线MIPI差分对内及对间做阻抗匹配

  屏幕驱动电压部分与数字低 单点接地

  元件选型请选用立创商城正品元件

 排线均选择反向的

 

软件部分（详情查看附件）

液晶屏初始化部分

&dsi1 {

status = "okay";

 

rockchip,lane-rate = <816>;//816

dsi1_panel: panel@0 {

status = "okay";

compatible = "simple-panel-dsi";

reset-gpios = <&gpio3 RK_PC1 GPIO_ACTIVE_LOW>;

pinctrl-names = "default";

pinctrl-0 = <&dsi1_rst_gpio>;

reg = <0>;

backlight = <&backlight>;

reset-delay-ms = <50>;

enable-delay-ms = <10>;

prepare-delay-ms = <10>;

unprepare-delay-ms = <10>;

disable-delay-ms = <10>;

init-delay-ms = <10>;

dsi,flags = <(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |

MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET)>;

dsi,format = <MIPI_DSI_FMT_RGB888>;

dsi,lanes  = <2>;

panel-init-sequence = [

 

   23 01 02 7A C1    // Enable MIPI command config regsiters

           23 01 02 20 00     //HACTIVE[7:0] 

           23 01 02 21 58 //VACTIVE[7:0]

           23 01 02 22 24 //VACTIVE[11:8] for bit7-4,HACTIVE[11:8] for bit 3-0

           23 01 02 23 A0 //HFP

           23 01 02 24 02 //HSW

           23 01 02 25 A0 //HBP

           23 01 02 26 00 //HFP[9:8] for bit5-4,HSW[9:8] for 3-2,HBP[9:8] for bit 1-0

           23 01 02 27 0C //VFP

           23 01 02 28 02 //VS

           23 01 02 29 17 //VBP

           23 01 02 34 80 //SYNC_EVENT_DLY[7:0]

           23 01 02 36 A0 //HSW_MIN

 

           23 01 02 86 29 //DSI_CTRL register   

 

           23 01 02 B5 A0 //MIPI_PD_CK_LANE register

           23 01 02 5C FF //PLL_WT_LOCK[7:0] 

 

// 23 01 02 14 43  // Test mode

// 23 01 02 2A 49  // Test mode  彩条测试 这2条

           //   23 01 02 2A 00  // DE Polarity     

    // 23 01 02 2A 01 //2A  01  //BIST POL Register 

 

           23 01 02 56 92 //内部时钟时设置为0x93,mipi作为像素时钟时设置为0x92

           23 01 02 6B 53    //73     // PLL DIV      //PLL_REF_DIV register 31

           23 01 02 69 18    //29     // PLL INT    //PLL_INT[7:0]  23

//PCLK

 

 

 

           23 01 02 10 40 //SYS_CTRL_0 register

           23 01 02 11 88  //88 //SYS_CTRL_1 register

           23 01 02 B6 20 //MIPI_FORCE_0 register

           23 01 02 51 20 //PLL_CTRL_1 register

           23 01 02 09 10 // CONFIG_FINISH register,disply on 

];

 

panel-exit-sequence = [

];

 

disp_timings1: display-timings {

native-mode = <&dsi1_timing0>;

dsi1_timing0: timing0 {

clock-frequency = <51000000>;   //clock-frequency = <43000000>;

hactive = <1024>;

hfront-porch = <160>;

hsync-len = <2>;

hback-porch = <160>;

 

vactive = <600>;

vfront-porch = <12>;

vsync-len = <2>;

vback-porch = <23>;

hsync-active = <0>;

vsync-active = <0>;

de-active = <0>;

pixelclk-active = <0>;

swap-rb = <0>;

swap-rg = <0>;

swap-gb = <0>;

};

};

需要单独写一个触摸屏的配置函数，

static u8 GT911_Send_Cfg(u8 mode,struct i2c_client *client)//修改

{

int ret;

u8 buf[2];

u8 gt_cfgs_reg[2] = {0x80,0x47};

u8 GT_CHECK_REG[2] = {0x80,0xff};

u8 i=0;

 

buf[0] = 0;

buf[1] = mode;

for(i=0;i<sizeof(GT911_CFG_TBL);i++)

{

buf[0]+=GT911_CFG_TBL[i];

}//计算校验和

    buf[0]=(~buf[0])+1;

 ret = my_touch_i2c_write(client,  gt_cfgs_reg,sizeof(gt_cfgs_reg), GT911_CFG_TBL, sizeof(GT911_CFG_TBL));//发送寄存器配置

    if (ret < 0){

        MY_DEBUG("I2C write jicunqipeizhi error!");

    }

 ret = my_touch_i2c_write(client,  GT_CHECK_REG,sizeof(GT_CHECK_REG), buf, sizeof(buf));//写入校验和,和配置更新标记

    if (ret < 0){

        MY_DEBUG("I2C write jiaoyanwei error!");

    }

return 0;

} 

触摸初始化序列（184个寄存器）

u8 GT911_CFG_TBL[]= {

0x62,0x00,0x04,0x58,0x02,0x05,0x3D,0x00,0x11,0x8F,   

0x1E,0x0F,0x3C,0x3C,0x03,0x05,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x1A,0x1C,0x1E,0x14,0x8A,0x2A,0x0C,

0x2A,0x28,0xEB,0x04,0x00,0x00,0x01,0x61,0x03,0x2C,

0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x14,0x3C,0x94,0xC5,0x02,0x05,0x00,0x00,0x04,

0xB7,0x16,0x00,0x9F,0x1B,0x00,0x8B,0x22,0x00,0x7B,

0x2B,0x00,0x70,0x36,0x00,0x70,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x18,0x16,0x14,0x12,0x10,0x0E,0x0C,0x0A,

0x08,0x06,0x04,0x02,0xFF,0xFF,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x24,0x22,0x21,0x20,0x1F,0x1E,0x1D,0x1C,

0x18,0x16,0x13,0x12,0x10,0x0F,0x0A,0x08,0x06,0x04,

0x02,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00 

}；

外壳

*本项目中pcb贴紧屏幕放置而且粘合，所以未在外壳 中体现

预留按键孔，预留主芯片散热孔

其他

 

 

 

 

 

 

 

 

视频为压缩后的效果，实际效果比较好，

另外，打印的3d外壳迟迟没到，等到了再分享