来自分类:
Alex (访客) 13 Aug 2018 14:35
讨论中 Hidden / Per page discussions » Discuss

Hello,

I have one quick question.

I have seen that the RK3399 has dual channel MIPI CSI Receive ports.

Would it be possible to have them acting also as MIPI CSI Transmit ports ( to act as a camera simulator) ?

Thank you,
Alex

Alex (访客), 13 Aug 2018 14:35
jack (访客) 18 May 2018 05:44
讨论中 Hidden / Per page discussions » Discuss

use ap6212 bt ttyS0 error:
[ 25.950969] [BT_RFKILL]: bt shut off power
[ 25.972122] [BT_RFKILL]: rfkill_rk_set_power: set bt wake_host pin output high!
[ 26.018726] [BT_RFKILL]: ENABLE UART_RTS
[ 26.122001] [BT_RFKILL]: DISABLE UART_RTS
[ 26.122066] [BT_RFKILL]: bt turn on power
[ 26.122967] ttyS0 - failed to request DMA

jack (访客), 18 May 2018 05:44
tiandaozhangtiandaozhang 29 Jan 2018 10:31
讨论中 Hidden / Per page discussions » Discuss

the SPDIF node in DTS file of target board:
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "SPDIF";
simple-audio-card,dai-link@1 {
cpu { sound-dai = <&spdif>; };
codec { sound-dai = <&spdif_out>; };
};
};

spdif_out: spdif-out {
compatible = "linux,spdif-dit";
#sound-dai-cells = <0>;
};

&spdif {
status = "okay";
};

tiandaozhangtiandaozhang, 29 Jan 2018 10:31
tiandaozhang (访客) 29 Jan 2018 10:28
讨论中 Hidden / Per page discussions » Discuss

现在正在使用MIQI的RK3288调试,在调试SPDIF音频输出时,使用官网的4.4.16-rc8(通过自己修改rk3288-miqi.dts设备树文件)版本程序可以播放音频文件,但是我在一个4.15-rc8的版本上测试时,按照rockchip WIKI网址中的每一步骤说明进行了配置后,
可以看到:
root@linaro-alip:~# aplay -l
List of PLAYBACK Hardware Devices
card 0: SPDIF [SPDIF], device 0: ff8b0000.sound-dit-hifi dit-hifi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
在使用
root@linaro-alip:~# aplay 250Hz_44100Hz_16bit_30sec.wav
Playing WAVE '250Hz_44100Hz_16bit_30sec.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Mono
播放音乐时,不报错,显示可以正常播放文件,但是在SPDIF接口上无数据输出,使用示波器测试SPDIF也发现无数据内容,在这种情况下需要如何调试验证?希望能得到您的指导,谢谢!
在I2S接口上也存在相同的问题!

tiandaozhang (访客), 29 Jan 2018 10:28

Please, test this and fix lib RK3399
H.264 10bit HP level 5.1 does not work

================= TEST FILE =================

[Coalgirls]_Sword_Art_Online_(1920x1080_Blu-ray_FLAC)

Format profile: High 1.5L|01#1.5L|01
Width : 1 920 pixels
Height : 1 080 pixels
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Writing library : x264 core 128

or cloud:
1. test [Coalgirls]_Sword_Art_Online_(High 1.5L|01#1.5L|01 1920x1080_Blu-ray_FLAC) 1.2 Gb
2. test SteinsGate_part1_High 1.5L|01#1.5L|01_x264_10 bits 574 Mb

Rockchip, how long will we remain silent?

H.264 10bit HP level 5.1 does not work on a chip RK3399!
Please, test this and fix lib RK3399, OK?

================= TEST FILE =================

[Coalgirls]_Sword_Art_Online_(1920x1080_Blu-ray_FLAC)

Format profile: High 1.5L|01#1.5L|01
Width : 1 920 pixels
Height : 1 080 pixels
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Writing library : x264 core 128

or cloud:
1. test [Coalgirls]_Sword_Art_Online_(High 1.5L|01#1.5L|01 1920x1080_Blu-ray_FLAC) 1.2 Gb
2. test SteinsGate_part1_High 1.5L|01#1.5L|01_x264_10 bits 574 Mb

Dear developers of Rockchip!
I really need a sound via HDMI using RK1000 chip for kernel 4.4.
Tell me, when the support of the RK1000 codec be made?
Is there any solution now?

原厂的开发板安装的是android,我现在想换成ubuntu,但不知道怎么换啊
boot加载kernel,一闪而过,没有机会敲键盘停住
masrom键,上电时按了就没有动静啦。。。
怎么办?

Jacob (访客) 26 Feb 2017 06:05
讨论中 Hidden / Per page discussions » Discuss

有什么关于wiki的建议和错误可以在这里提一下哦

Any suggestions to correct the wiki could be pushed in here.

Jacob (访客), 26 Feb 2017 06:05