• State Resolved
  • Locked Locked
  • Replies 8 replies
  • Subscribers 0 subscribers
  • Views 236 views
  • Users 0 members are here
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

[参考译文] SN65DSI84：显示移位

admin
Guru**** 1507460 points
Other Parts Discussed in Thread: SN65DSI84
请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1319128/sn65dsi84-display-shifting

器件型号：SN65DSI84

团队成员

我们使用 imx8mp 平台开发产品、并使用 SN65DSI84将 MIPI 信号转换 为 LVDS 信号、我们在测试电路板时遇到了显示移位问题 屏幕分辨率为1920x1080，有时在 x 方向上偏移较大。

在此测试中、我们使用 Weston 在屏幕上显示背景、 此测试中不涉及其他与显示器相关的应用。

原始图像如下所示：

值得注意的是、每次启动系统时、屏幕不会移动。  屏幕漂移的概率约为1/15。  屏幕上图像在 x 方向的偏移每次都相同。

寄存器转储如下：

root 用户@：/var/lib/systemd/coredump # i2cdump -f -y 13 0x2C
未指定大小(使用字节数据访问)
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 35 38 49 53 44 20 20 20 01 00 85 28 00 01 00 58ISD ?..
10：26 00 55 00 00 00 00 0c 05 03 00 00 00 00 00 00 00 &.u..... ？？？……
20: 80 07 00 00 38 04 00 21 00 00 00 0f 00 00 00 00？...8？...
30: 0A 00 00 00 2D 00 0A 00 2D 00 0A 00 00 00 00？...
40：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
50：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
60：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
70：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
80：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
90：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
A0：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
B0：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
C0：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
D0：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
E0：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
F0：00 00 00 00 40 00 00 80 00 00 00 00 00 00 00@……………………………………………

屏幕正常时、寄存器如下：

未指定大小(使用字节数据访问)
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 35 38 49 53 44 20 20 20 01 00 85 28 00 01 00 58ISD ?..
10：26 00 55 00 00 00 00 0c 05 03 00 00 00 00 00 00 00 &.u..... ？？？……
20: 80 07 00 00 38 04 00 21 00 00 00 0f 00 00 00 00？...8？...
30: 0A 00 00 00 2D 00 0A 00 2D 00 0A 00 00 00 00？...
40：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
50：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
60：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
70：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
80：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
90：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
A0：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
B0：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
C0：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
D0：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
E0：00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00．
F0：00 00 00 00 40 00 00 80 00 00 00 00 00 00 00@……………………………………………

您能帮助我找出 SN65DSI84配置有什么问题吗？

雪

此致