ODROID C2

[smallfat]

Hi Frank,

I rewrite image and connect C2 to ODROID VU7
Touch function seems work again although response is not so good.

So I believe touch function of ODROID VU7 and WaveShare 7" IPS may different.

RGDS

[ragious]

@dunghnguyen,
Are you sure that your DSD support settings (native vs. DOP) on your PI and C2 are the same?
Cheers R.

[dunghnguyen]

@dunghnguyen,
Are you sure that your DSD support settings (native vs. DOP) on your PI and C2 are the same?
Cheers R.

For Pi2, I played dsd many times. The setting is DSD enabled.

For C2, the DSD setting has 2 options but I selected "DSD (native)".

Besides of those, no idea much.

[ragious]

try DOP on the C2. For me that is the difference between just noise and a good sound. Cheers R.

[dunghnguyen]

try DOP on the C2. For me that is the difference between just noise and a good sound. Cheers R.

Let me try but this option is only DSD affective while playing 16/44.1 is also very distorted and noisy. No issue at all with 24/192. Tks.

[hondagx35]

Hi all,

native DSD does not work with all USB DACs.
https://github.com/lintweaker/xmos-native-dsd

XMOS based USB DACs and converters can support native DSD playback using a 32-bit sample format. DACs that support this feature expose it using a Alternate Setting on the USB interface.

On Windows systems this feature can be used with a ASIO 2.1/2.2 driver from the DAC manufacturer.

I have added a new DSD sample format to ALSA and the Linux kernel (DSD_U32_LE) to support it on Linux and added the needed quirks to support it for a few XMOS based USB DACs/boards.

Currently native DSD playback on Linux is supported for the following XMOS based DACs/USB converters:

- iFi Audio micro iDSD [max DSD512]
- iFi Audio nano iDSD [max DSD256, with latest 4.04 firmware]
- DIYINHK USB to I2S/DSD converter [max DSD128]
..more to follow

.....
.....

Check if you have a supported device

Currently devices with USB ID 20b1:3008 and USB ID 20b1:2009 are supported. This are devices from iFi Audio/AMR and DIYINHK. If you think you have a (XMOS based) DAC device or converter that should support native DSD playback please contact me.

To check if your device is supported, or at least XMOS based(1), use the following command:

lsusb -d 20b1:

For the iFi Audio nano and micro iDSD it reports: Bus 003 Device 004: ID 20b1:3008 XMOS Ltd (please note: Bus and Device numbers may vary).

(1) Some manufacturers may use the XMOS chip with their own vendor id instead of XMOS.

try DOP on the C2. For me that is the difference between just noise and a good sound. Cheers R.

Yes this is the solution for DSD issues.

Frank

[hondagx35]

Hi smallfat,

I rewrite image and connect C2 to ODROID VU7
Touch function seems work again although response is not so good.

So I believe touch function of ODROID VU7 and WaveShare 7" IPS may different.

Yes, the used hardware is different.

Did you try what i have told you?

Frank

[smallfat]

Hi Frank,

You mean unplug and plug USB cable on WaveShare IPS panel?
Yes, I did it. But touch still no function.
Display is work well

Your IPS panel work well?

RGDS
Michael

Hi smallfat,

I rewrite image and connect C2 to ODROID VU7
Touch function seems work again although response is not so good.

So I believe touch function of ODROID VU7 and WaveShare 7" IPS may different.

Yes, the used hardware is different.

Did you try what i have told you?

Frank

[dunghnguyen]

try DOP on the C2. For me that is the difference between just noise and a good sound. Cheers R.

I am just back home then tried it minutes ago but the issue is still there !

[dunghnguyen]

@hondagx35: as per your advice, I checked my USB DAC SMSL M8 and this is the outcome from your advised command

Code: Select all

login as: root
root@192.168.0.33's password:
===============  RuneOS distribution  ===============
  ____                      _             _ _
 |  _ \ _   _ _ __   ___   / \  _   _  __| (_) ___
 | |_) | | | | '_ \ / _ \ / _ \| | | |/ _` | |/ _ \
 |  _ <| |_| | | | |  __// ___ \ |_| | (_| | | (_) |
 |_| \_\\__,_|_| |_|\___/_/   \_\__,_|\__,_|_|\___/

================  www.runeaudio.com  ================
RuneOs: 0.4-alpha (build 20160516)
RuneUI: 1.3-alpha
Hw-env: ODROID-C2

root@runeaudio(ro):~# lsusb -d 20b1:
Bus 001 Device 003: ID 20b1:000a XMOS Ltd
root@runeaudio(ro):~#