(资料图片仅供参考)
一. 简介
mipi屏调试一般都要在RK平台的dts中配置屏幕上电初始化时序 :panel-init-sequence和下电初始化时序:panel-exit-sequence。本文讲解如何配置屏幕的这些初始化时序。专栏总目录二. 数据类型:Data Type
2.1 常见数据类型 1 :DCS Write
注意:这里的parameter并不是指数据字节个数
0x05 命令类型: 单字节数据 (DCS Short Write, no parameters)0x15 命令类型: 双字节数据 (DCS Short Write, 1 parameter)0x39 命令类型: 多字节数据 (DCS Long Write, n parameters n > 2)
0x05 命令类型:(DCS Short Write, no parameters)
05 95 01 1105 95 01 29
0x15 命令类型:(DCS Short Write, 1 parameter)
15 00 02 80 77| | | | || | | | 数据| | | | 寄存器地址| | 数据长度| 延时命令类型(0x05: 单字节数据 0x15: 双字节数据 0x39: 多字节数据)解析:Data Type:0x15 ( 0x15格式的数据类型 DCS Short Write, 1 parameter)Delay:0x00 ( 延时,表示当前 Packet 发送完成之后,需要延时多少 ms,再开始发送下一条命令 )PayloadLength:0x02 ( Packet 的有效负载长度为2 Bytes,数据字节个数为2 )Payload: 0x80 0x77 ( Payload 数据 )
0x39 命令类型是带多个参数,大于两个参数 (DCS Long Write / write_LUT Command Packet)
39 00 06 FF 77 01 00 00 1039 00 03 C0 63 0039 00 03 C1 11 02
2.2 常见数据类型 2 :Generic Write
注意:这里的parameter并不是指数据字节个数
0x03 命令类型: 单字节数据 (Generic Short Write, no parameters)0x13 命令类型: 双字节数据 (Generic Short Write, 1 parameter)0x23 命令类型: 三字节数据 (Generic Short Write, 2 parameters)0x29 命令类型: 多字节数据 (Generic Long Write, n parameters n > 2)
三. RK平台上电初始化时序配置
屏厂给的MIPI屏初始化代码:
params- >dsi.vertical_sync_active=2params- >dsi.vertical_backporch=10params- >dsi.vertical_frontporch=14params- >dsi.horizontal_sync_active=24params- >dsi.horizontal_backporch=80params- >dsi.horizontal_frontporch=60params- >dsi.PLL_CLOCK=478 LCD_nReset=1;Delayms(5);LCD_nReset=0;Delayms(20);//10LCD_nReset=1;Delayms(200);//120Generic_Short_Write_1P(0xB0,0x01);Generic_Short_Write_1P(0xC0,0x26);Generic_Short_Write_1P(0xC1,0x10);Generic_Short_Write_1P(0xC2,0x0E);Generic_Short_Write_1P(0xC3,0x00);Generic_Short_Write_1P(0xC4,0x00);Generic_Short_Write_1P(0xC5,0x23);Generic_Short_Write_1P(0xC6,0x11);Generic_Short_Write_1P(0xC7,0x22);Generic_Short_Write_1P(0xC8,0x20);Generic_Short_Write_1P(0xC9,0x1E);Generic_Short_Write_1P(0xCA,0x1C);Generic_Short_Write_1P(0xCB,0x0C);Generic_Short_Write_1P(0xCC,0x0A);Generic_Short_Write_1P(0xCD,0x08);Generic_Short_Write_1P(0xCE,0x06);Generic_Short_Write_1P(0xCF,0x18);Generic_Short_Write_1P(0xD0,0x02);Generic_Short_Write_1P(0xD1,0x00);Generic_Short_Write_1P(0xD2,0x00);Generic_Short_Write_1P(0xD3,0x00);Generic_Short_Write_1P(0xD4,0x26);Generic_Short_Write_1P(0xD5,0x0F);Generic_Short_Write_1P(0xD6,0x0D);Generic_Short_Write_1P(0xD7,0x00);Generic_Short_Write_1P(0xD8,0x00);Generic_Short_Write_1P(0xD9,0x23);Generic_Short_Write_1P(0xDA,0x11);Generic_Short_Write_1P(0xDB,0x21);Generic_Short_Write_1P(0xDC,0x1F);Generic_Short_Write_1P(0xDD,0x1D);Generic_Short_Write_1P(0xDE,0x1B);Generic_Short_Write_1P(0xDF,0x0B);Generic_Short_Write_1P(0xE0,0x09);Generic_Short_Write_1P(0xE1,0x07);Generic_Short_Write_1P(0xE2,0x05);Generic_Short_Write_1P(0xE3,0x17);Generic_Short_Write_1P(0xE4,0x01);Generic_Short_Write_1P(0xE5,0x00);Generic_Short_Write_1P(0xE6,0x00);Generic_Short_Write_1P(0xE7,0x00);Generic_Short_Write_1P(0xB0,0x03);Generic_Short_Write_1P(0xBE,0x04);Generic_Short_Write_1P(0xB9,0x40);Generic_Short_Write_1P(0xCC,0x88);Generic_Short_Write_1P(0xC8,0x0C);Generic_Short_Write_1P(0xC9,0x07);Generic_Short_Write_1P(0xCD,0x01);Generic_Short_Write_1P(0xCA,0x40);Generic_Short_Write_1P(0xCE,0x1A);Generic_Short_Write_1P(0xCF,0x60);Generic_Short_Write_1P(0xD2,0x08);Generic_Short_Write_1P(0xD3,0x08);Generic_Short_Write_1P(0xDB,0x01);Generic_Short_Write_1P(0xD9,0x06);Generic_Short_Write_1P(0xD4,0x00);Generic_Short_Write_1P(0xD5,0x01);Generic_Short_Write_1P(0xD6,0x04);Generic_Short_Write_1P(0xD7,0x03);Generic_Short_Write_1P(0xC2,0x00);Generic_Short_Write_1P(0xC3,0x0E);Generic_Short_Write_1P(0xC4,0x00);Generic_Short_Write_1P(0xC5,0x0E);Generic_Short_Write_1P(0xDD,0x00);Generic_Short_Write_1P(0xDE,0x0E);Generic_Short_Write_1P(0xE6,0x00);Generic_Short_Write_1P(0xE7,0x0E);Generic_Short_Write_1P(0xC2,0x00);Generic_Short_Write_1P(0xC3,0x0E);Generic_Short_Write_1P(0xC4,0x00);Generic_Short_Write_1P(0xC5,0x0E);Generic_Short_Write_1P(0xDD,0x00);Generic_Short_Write_1P(0xDE,0x0E);Generic_Short_Write_1P(0xE6,0x00);Generic_Short_Write_1P(0xE7,0x0E);Generic_Short_Write_1P(0xB0,0x06);Generic_Short_Write_1P(0xC0,0xA5);Generic_Short_Write_1P(0xD5,0x1C);Generic_Short_Write_1P(0xC0,0x00);Generic_Short_Write_1P(0xB0,0x00);Generic_Short_Write_1P(0xBD,0x30);//VCOM 37Generic_Short_Write_1P(0xF9,0x5C);Generic_Short_Write_1P(0xC2,0x14);Generic_Short_Write_1P(0xC4,0x14);Generic_Short_Write_1P(0xBF,0x15);Generic_Short_Write_1P(0xC0,0x0C);Generic_Short_Write_1P(0xB0,0x00);Generic_Short_Write_1P(0xB1,0x79);Generic_Short_Write_1P(0xBA,0x8F);// DCS_Short_Write_NP(0x11); Delay(200); DCS_Short_Write_NP(0x29); Delay(50);
3.1 分析客户给的mipi屏初始化代码:
Generic_Short_Write_1P(0xBA,0x8F);Generic_Short_Write_1P表示:发送Generic命令,带1个参数,数据字节个数为2(Generic Short Write, 1 parameter)0xBA:寄存器地址0x8F:数据1为0x8F
在DTS上转成RK上的mipi屏初始化格式13 00 02 BA 8F解析:13 表示0x13数据类型的指令00 表示没有延时02 表示两个数据长度 :0xBA,0x8FBA 表示寄存器地址0xBA8F 表示0x8F这个数据
分析客户给的mipi屏初始化代码:DCS_Short_Write_NP(0x11); Delay(200); DCS_Short_Write_NP(0x29); Delay(50); 解析: DCS_Short_Write_NP表示:只发送DCS命令,不带参数,数据字节个数为1。(DCS Short Write, no parameters) 0x11:数据1为0x11 Delay(200):延迟为200
在DTS上转成RK上的mipi屏初始化格式05 C8 01 1105 32 01 29解析:05 表示0x05数据类型的指令C8 表示延时为200 转换成16进制为0xC801 表示1个数据长度 :0x1111 表示数据:0x11
3.2 将屏厂的初始化代码转换成RK平台的屏幕上电初始化时序DTS配置:
panel-init-sequence = [13 00 02 B0 0113 00 02 C0 2613 00 02 C1 1013 00 02 C2 0E13 00 02 C3 0013 00 02 C4 0013 00 02 C5 2313 00 02 C6 1113 00 02 C7 2213 00 02 C8 2013 00 02 C9 1E13 00 02 CA 1C13 00 02 CB 0C13 00 02 CC 0A13 00 02 CD 0813 00 02 CE 0613 00 02 CF 1813 00 02 D0 0213 00 02 D1 0013 00 02 D2 0013 00 02 D3 0013 00 02 D4 2613 00 02 D5 0F13 00 02 D6 0D13 00 02 D7 0013 00 02 D8 0013 00 02 D9 2313 00 02 DA 1113 00 02 DB 2113 00 02 DC 1F13 00 02 DD 1D13 00 02 DE 1B13 00 02 DF 0B13 00 02 E0 0913 00 02 E1 0713 00 02 E2 0513 00 02 E3 1713 00 02 E4 0113 00 02 E5 0013 00 02 E6 0013 00 02 E7 0013 00 02 B0 0313 00 02 BE 0413 00 02 B9 4013 00 02 CC 8813 00 02 C8 0C13 00 02 C9 0713 00 02 CD 0113 00 02 CA 4013 00 02 CE 1A13 00 02 CF 6013 00 02 D2 0813 00 02 D3 0813 00 02 DB 0113 00 02 D9 0613 00 02 D4 0013 00 02 D5 0113 00 02 D6 0413 00 02 D7 0313 00 02 C2 0013 00 02 C3 0E13 00 02 C4 0013 00 02 C5 0E13 00 02 DD 0013 00 02 DE 0E13 00 02 E6 0013 00 02 E7 0E13 00 02 C2 0013 00 02 C3 0E13 00 02 C4 0013 00 02 C5 0E13 00 02 DD 0013 00 02 DE 0E13 00 02 E6 0013 00 02 E7 0E13 00 02 B0 0613 00 02 C0 A513 00 02 D5 1C13 00 02 C0 0013 00 02 B0 0013 00 02 BD 3013 00 02 F9 5C13 00 02 C2 1413 00 02 C4 1413 00 02 BF 1513 00 02 C0 0C13 00 02 B0 0013 00 02 B1 7913 00 02 BA 8F05 C8 01 1105 32 01 29];panel-exit-sequence = [05 00 01 2805 00 01 10];
审核编辑:汤梓红
关键词:
RK3588-MIPI屏幕调试笔记:RK3588-MIPI-DSI之LCD上电初始化时序2023-06-11
1、ZN是阻燃耐火,ZH是阻燃及普通型阻燃的含义:在规定试验条件下,试2023-06-11
012023年,对于董洁来说,是有特殊意义的一年。43岁的她,迎来了事业上2023-06-11
1、成语并日而食解释并日:两天合并成一天。2、不能天天得食,两天三天2023-06-11
2023年5 25日凌晨3点左右,在一款游戏“口袋奇兵”推出的活动中2023-06-11
1、室内设计师必须了解室内效果图的工作流程,认识常用菜单和命令版面2023-06-11
5月23日,日本出台针对23种半导体制造设备的出口管制措施。5月26日,日2023-06-11
记者9日从水利部了解到,今年1月至5月,我国完成水利建设投资4106亿元2023-06-11
1、如果我的主张行不通,我就乘上木筏子到海外去。2、【评析】“道不行2023-06-11
记者从河南省农业农村厅了解到,截至6月10日17时,河南省已收获小麦8402023-06-11
深圳新闻网2023年6月10日讯(深圳特区报记者张燕)听资深电影人讲布光2023-06-11
关注数码圈的小伙伴都知道,目前很多国产手机品牌在保住国内市场的同时2023-06-11
三亚的单身朋友们久等了,2023年三亚日报“爱在三亚情定天涯”公益相亲2023-06-11
今天(10日)下午5时左右,江苏南通市城区、海门、如皋等多地出现了强2023-06-11
七八分熟的涮羊肉不宜吃的原因是易感染上旋毛虫病在寒冷季节,家入团聚2023-06-11
直播吧6月10日讯今日NBA总决赛G4,热火继续主场迎战掘金。足球巨星内马2023-06-11
为何古代打仗一方高挂免战牌,对手真就听话不进攻强攻会怎样,在现代古2023-06-11
红葡萄酒搭配肉类为主,白葡萄酒搭配海鲜为主。如果是搭配橄榄,可能的2023-06-11
特别观察丨这样一条街点亮一座“城”原标题:特别观察丨这样一条街点亮2023-06-11
来为大家解答以上的问题。宽带怎么设置连接人数,怎么设置wifi连接人数2023-06-11
1、27 鹿肉忌冬瓜,食则胀死。2、无救。3、28 鲫鱼忌冬瓜,食则脱水。4、2023-06-11
假期来了!岳阳楼区守护夜间消费市场安全湖南日报·新湖南客户端6月102023-06-11
来为大家解答以上的问题。奥拉星亚比印记有什么用,奥拉星亚比印记怎么2023-06-11
为持续抓好“三夏”生产,农业农村部已派出工作组,帮助协调解决农机调2023-06-11
背后是群体利益冲突问题2023-06-11