Thanks a lot for sharing. Pretty useful. Audio cape 'Rev B' was not available and I had to buy the old 'REV A' and manged to work the 'audio out working' (have't tested the mic yet).
Best Regards, Ramakanth On Sunday, November 1, 2015 at 8:24:00 PM UTC, man...@unlv.nevada.edu wrote: > > Harry, > > Thank you a million times over for this tutorial! > > I was sweating this part of my senior design project, and your > instructions made it painless. I got this set up on my BBB Rev C in under > 10 minutes (as I already had it set up for one of those little C=media > soundcards previously). > > Expect to be on the acknowledgements list when it's all done. > > Best regards, > > JM > > On Thursday, February 27, 2014 at 7:34:07 AM UTC-8, Harry May wrote: >> >> 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. 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