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--- en:c2_hifi_shield [2016/05/19 15:26]
odroid
+++ en:c2_hifi_shield [2016/12/11 10:07] (current)
odroid [HiFi-shield2]
@@ Line 1: / Line 1: @@
-**Quick installation guide to enable the HiFi Shield audio output on Ubuntu.**
+=====Quick installation guide to enable the I2S audio output on Ubuntu.=====
+==== HiFi-shield & HiFi-Shield+ ====
+{{http://www.hardkernel.com/main/_Files/prdt/2016/201605/201605181634077377.jpg?400|}}
+The HiFi Shield Plus provides both stereo RCA connectors and a 3.5mm stereo jack (all gold-plated) to connect to external amplifiers and other audio equipment. An S/PDIF Optical output is also available.  Via TI's high-end **PCM5102** DAC chip(known as Burr-Brown), it supports 16, 24, 32 bit audio formats with minimal distortion (-93dB) and ideal dynamics (110dB+), plus amazing sampling rates of 384kHz
   - Assemble the C2 with the HiFi shield, attach a USB keyboard, USB mouse and HDMI monitor, then power up the system.\\
@@ Line 24: / Line 28: @@
   - To test, connect an amplifier to the 3.5mm or RCA lineout jack on the HiFi Shield, and then run:\\
   - Applications -> Sound & Video -> Sound -> Hardware Tab & Output Tab select "ODROID-DAC"\\
-  - ** If you want to use the optical output, select "ODROID-HDMI" **.\\
+  - If you want to use the **Optical output** on HiFi-Shile-Plus model, select "ODROID-HDMI".\\
-**If you have to load the driver every time whenever your ODROID-C2 starts, simply you can register the driver into /etc/modules **\\ <code>
+**If you have to load the driver every time whenever your ODROID-C2 starts, simply you can register the driver into /etc/modules **\\
+<code>
 odroid@odroid64:~$ su
 Password:  /* root password is "odroid" */
@@ Line 34: / Line 39: @@
 exit
 odroid@odroid64:~$ </code>
-This adds one line at end of the file, /etc/modules, and load the driver on boot automatically.
+This adds one line at end of the file, /etc/modules, and load the driver on boot automatically.\\
+**Create /etc/asound.conf with the following content:**
+<code>
+pcm.!default  {
+ type hw card 1
+}
+ctl.!default {
+ type hw card 1
+}
+</code>
+Reboot again. \\
+**Check, if the sound card is enabled with “aplay -l”:**
+<code>
+odroid@odroid64:~$ aplay -l
+**** List of PLAYBACK Hardware Devices ****
+card 0: ODROIDHDMI [ODROID-HDMI], device 0: I2S.27 dit-hifi-0 []
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+card 1: ODROIDDAC [ODROID-DAC], device 0: I2S.27 pcm5102-0 []
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+odroid@odroid64:~$
+</code>
+==== HiFi-shield2 ====
+{{http://www.hardkernel.com/main/_Files/prdt/2016/201610/201610081156405325.jpg?800|}}
+The HiFi Shield 2 provides stereo RCA connectors to connect to external amplifiers and other audio equipment. An S/PDIF Optical output is also available.
+Via TI's high-end **PCM5242** DAC chip(known as Burr-Brown), it supports 16, 24, 32 bit audio formats with minimal THD+N ratio (0.002%) and ideal dynamics (116dB+), plus amazing sampling rates of 384kHz. Volume control via I2C interface is great feature to keep the great audio quality with various audio output volume.
+  - Assemble the C2 with the HiFi shield2, attach a USB keyboard, USB mouse and HDMI monitor, then power up the system.\\
+  - Update the System: **sudo apt-get update && sudo apt-get dist-upgrade** \\
+  - To ensure that the HiFi shield2 kernel modules are loaded on Terminal.\\ <code>
+odroid@odroid64:~$ aplay -l
+**** List of PLAYBACK Hardware Devices ****
+card 0: ODROIDHDMI [ODROID-HDMI], device 0: I2S dit-hifi-0 []
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+odroid@odroid64:~$ su
+Password:  /* root password is "odroid" */
+root@odroid64:/home/odroid# modprobe aml_i2c
+root@odroid64:/home/odroid# modprobe snd_soc_pcm512x
+root@odroid64:/home/odroid# modprobe snd_soc_pcm512x_i2c
+root@odroid64:/home/odroid# echo pcm5242 0x4c > /sys/class/i2c-adapter/i2c-1/new_device
+root@odroid64:/home/odroid# modprobe snd-soc-odroid-dac2
+root@odroid64:/home/odroid# aplay -l
+**** List of PLAYBACK Hardware Devices ***
+card 0: ODROIDHDMI [ODROID-HDMI], device 0: I2S dit-hifi-0 []
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+card 1: ODROIDDAC2 [ODROID-DAC2], device 0: I2S pcm512x-hifi-0 []
+  Subdevices: 0/1
+  Subdevice #0: subdevice #0
+root@odroid64:/home/odroid#
+</code>
+  - To test, connect an amplifier to the RCA out jack on the HiFi Shield2, and then run:\\
+  - Applications -> Sound & Video -> Sound -> Hardware Tab & Output Tab select "ODROID-DAC2"\\
+  - If you want to use the **Optical output** select "ODROID-HDMI".\\
+**You want to add the HiFi-Shield2 sound_card on ODROID-C2 at boot by editing /etc/rc.local. **\\
+<code>
+odroid@odroid64:~$ sudo nano /etc/rc.local
+if [ -f /aafirstboot ]; then /aafirstboot start ; fi
+echo Loading HiFi-Shield2 module
+modprobe aml_i2c
+modprobe snd-soc-pcm512x
+modprobe snd-soc-pcm512x-i2c
+echo pcm5242 0x4c > /sys/class/i2c-adapter/i2c-1/new_device
+modprobe snd-soc-odroid-dac2
+amixer -c 1 sset Analogue 0
+amixer -c 1 sset Digital 201
+amixer -c 1 sset Deemphasis on
+echo Done.
+exit 0
+^G Get Help  ^O Write Out ^W Where Is  ^K Cut Text  ^J Justify   ^C Cur Pos
+^X Exit      ^R Read File ^\ Replace   ^U Uncut Text^T To Linter ^_ Go To Line
+</code>
+Add the following at the bottom of the page above exit 0. ^x exit and save the file. Reboot your ODROID-C2.\\
+**Create /etc/asound.conf with the following content:**
+<code>
+pcm.!default  {
+ type hw card 1
+}
+ctl.!default {
+ type hw card 1
+}
+</code>
+Reboot again. \\
+**Check, if the sound card is enabled with “aplay -l”:**
+<code>
+odroid@odroid64:~$ aplay -l
+**** List of PLAYBACK Hardware Devices ****
+card 0: ODROIDHDMI [ODROID-HDMI], device 0: I2S dit-hifi-0 []
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+card 1: ODROIDDAC2 [ODROID-DAC2], device 0: I2S pcm512x-hifi-0 []
+  Subdevices: 1/1
+  Subdevice #0: subdevice #0
+odroid@odroid64:~$ </code>
+<WRAP center round important 60%>
+If above guide is not comfortable for you, try this alternative easy solution made by Fourdee (DietPi OS image author).\\
+http://forum.odroid.com/viewtopic.php?f=118&t=24415
+</WRAP>