[beagleboard] Re: BBB A5C schematic in Mentor format

Hi Leon, I have PADS 9.2 and I get the same error as you. I downloaded "PADS Layout viewer" to open files and it tells me that PADS 9.5 can open the files. -Alex On Monday, September 16, 2013 2:31:48 AM UTC-7, Leon Yan wrote: > > Hi All, > > Does any one know the BBB A5C schematic in Mentor f

[beagleboard] Custom Beaglebone black Audio cape with TLV320AIC3110

Hi, I am trying to design a cape with TLV320AIC3110 for Beaglebone black using I2c2 and Mcasp0. I have compiled the driver into the kernel and modified the device tree. This is my procedure. ubuntu@arm:~$ uname -r 3.15.10-bone8 1- Driver: I am using the driver in /sound/soc/codecs/tlc320aic31x

[beagleboard] Accessing and controlling PMIC, TPS65217C, from shell

Hi All, I connected a rechargeable Li+ battery to my BBB TP5, TP6, TP7, and TP8. I shorted TP5 and TP6 and added a 10uF decoupling capacitor. In addition, I connected TS to GND with a 9K resistor which is 10K || 75K according to the datasheet and the board boots fine from battery. Now my quest

Re: [beagleboard] Accessing and controlling PMIC, TPS65217C, from shell

Hi liyaoshi, So how can I measure the charge percentage left in the battery? Is there an example that I can use? TPS65217 does not allow us to read the battery voltage if I am right or at least I cannot find it in datasheet. what voltage are you talking about? I did some progress with control

Re: [beagleboard] Accessing and controlling PMIC, TPS65217C, from shell

Hi William, I have worked a little with codec drivers which allows you to access some features from user space. for example, you can change the microphone impedance, bias voltage etc by Alsamixer on the fly (I think is called hot swap). some have suggested to access the driver thru kernel inte

Re: [beagleboard] Custom Beaglebone black Audio cape with TLV320AIC3110

Just by the audio cape and you are done for MP3 player. regards, -A. On Tuesday, November 25, 2014 5:11:34 PM UTC-8, Rick M wrote: > > Thanks, Peter. I'm doing something similar for the first pass of this, but > if it works out, I'll want to make the cape so I can make a few more (they > are

[beagleboard] Re: Custom Beaglebone black Audio cape with TLV320AIC3110

Hi Rick, I am hardware engineer too; Sounds like we are in the same boat:) I essentially want to build a "radio," so I'll be developing a cape with > audio out and amplifier > I would recommend you to have look at TLV320AIC3100 with class D 4ohm speaker driver. It saves you amplifier design f

[beagleboard] SYSFS does not agree with FDT

Hi all, I am looking at device tree values for pin P8.43-P8.46 which are GPIO 72, 73, 70, and 71 respectively (address=offset 0x44e10+ 8a8, 8ac, 8a0, and 8a4 respectively). when I check the mode I see: root@arm:/sys/class/gpio/gpio72# cat /sys/kernel/debug/pinctrl/44e10800.pinmux/pins | grep 8a