since the standard Audio cape is not available, I purchased the DVID-02 cape which has HDMI and also the Audio TVL3106 chip which is the same as on the normal Audio cape.
I was in anticipation of a nightmare configuring that all (since this cape is marked as incompatible with the BBB), I had low expectation of getting it working. But fortunately this job was done in a few hours and the Audio is working great ! This is how to get it running under Ubuntu: 1) install the BB-BONE-DVID-02 cape, switch on power and login via ssh (no HDMI !) 2) install the ALSA file: apt-get install alsa-base, alsa-utils 3) check if the TVL3106 can be accessed via I2C interface: i2cdetect -y -r 1 should show the chip at address 1b lets test if a write/read access is possible: write some data: i2cset -y 1 0x1b 2 3 read it back: i2cget -y 1 0x1b 2 this should return: 3 4) lets see if a sound chip is detected: aplay -l no sound is detected, thats ok and we will activate it in the next step. 5) prepare the uEnv.txt file go to the uboot directory and open the file uEnv.txt (Attention: this file is on the eMMC and also on SD Card, so be sure to open the file used for booting !). add/modify this line: optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN,BB-BONE-EMMC-2G,BB-BONE-DVID capemgr.enable_partno=BB-BONE-AUDI-01 this disables the HDMI (which is required, since the DVID cape is not compatoble with HDMI) and also disables the eMMC (since I am only using the SD card for Ubuntu, you may do that different) and (thats the trick): enables the BB-BONE-AUDI-01 Our board is not the BB-BONE-AUDI-01, but since both boards are using the same sound chip, we simple use the drivers for the BB-BONE-AUDI-01 board which works fine with our DVID-02 board. 6) reboot the BBB 7) after rebooting lets check the system log: dmesg this will show that Ubuntu found our DVID-02 board, but the installation failed. This is ok, since this board is not compatible with the BBB. [ 2.881593] bone-capemgr bone_capemgr.9: failed to load firmware 'BB-BONE-DVID-02-00A1.dtbo' [ 2.890507] bone-capemgr bone_capemgr.9: loader: failed to load slot-0 BB-BONE-DVID-02:00A1 (prio 0) But it also shows that the BB-BONE-AUDI-01 was installed successfully and the drivers are loaded: [ 2.900093] bone-capemgr bone_capemgr.9: slot #7: Requesting part number/version based 'BB-BONE-AUDI-01-00A0.dtbo [ 2.927274] bone-capemgr bone_capemgr.9: slot #7: Requesting firmware 'BB-BONE-AUDI-01-00A0.dtbo' for board-name 'Override Board Name', version '00A0' [ 2.976130] bone-capemgr bone_capemgr.9: slot #7: dtbo 'BB-BONE-AUDI-01-00A0.dtbo' loaded; converting to live tree [ 3.013599] bone-capemgr bone_capemgr.9: slot #7: #5 overlays 8) next lets check the slots file: ubuntu@arm:~$ cat /sys/devices/bone_capemgr.*/slots 1: 55:PF--- 2: 56:PF--- 3: 57:PF--- 4: ff:P-O-- Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G 5: ff:P-O-- Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI 6: ff:P-O-- Bone-Black-HDMIN,00A0,Texas Instrument,BB-BONELT-HDMIN 7: ff:P-O-L Override Board Name,00A0,Override Manuf,BB-BB-BONE-AUDI-01 as we can see, the HDMI and eMMC are not loaded, but the BONE-AUDI-01 is loaded, so it should be working. 9) lets test again if a sound chip is found: ubuntu@arm:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: EVM [DA830 EVM], device 0: AIC3X tlv320aic3x-hifi-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0 yes, it is found. 10) now let us test if its working connect a speaker/headphone to audio out (speaker only with an amplifier since the volume is very low) and enter: speaker-test -t sine now we can hear a sine wave tone. 11) lets play music take a WAV file and play it: aplay -t wav mymusic.wav Thats it, it was much easier than expected good luck Harry -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
