Re: [beagleboard] Re: I2C woes

2018-02-10 Thread Graham Haddock
On the PocketBeagle, both I2C-1 and I2C-2 are both brought out to the headers and both enabled by default. I don't know that there is any reason to prefer one over the other on the PocketBeagle. --- Graham == On Sat, Feb 10, 2018 at 7:55 PM, Stuart Longland wrote: > On 11/02/18 11:43, Graham w

Re: [beagleboard] Re: I2C woes

2018-02-10 Thread evilwulfie
Robert nelson had answered this back in december I searched this once and must have missed this. Robert Nelson 12/27/17 Other recipients: simo...@gmail.com - show quoted text - We've moved to u-boot overlays, to achieve the same follow: https://elinux.org/Beagleboard:BeagleBoneBlack

Re: [beagleboard] Re: I2C woes

2018-02-10 Thread evilwulfie
This is the DTB file on the green  downloaded yesterday. I dont understand that if its disabled why is there a /dev/i2c-1 file ? They fixed the numbering starting with the 9.1 images from what i can read. If it needs to be enabled how would one go about enabling it ? On 2/10/2018 6:43 PM, Graham w

Re: [beagleboard] Re: I2C woes

2018-02-10 Thread Stuart Longland
On 11/02/18 11:43, Graham wrote: > I am not an expert at Device Tree stuff, but this is what I think I know. > I2C-0 is intended for internal board management, so sort of reserved, > except as a last resort. > I2C-1 is available, but not enabled, on the BBB and is > enabled/implemented on the Pocke

[beagleboard] Re: I2C woes

2018-02-10 Thread Graham
Wulfie: I am not an expert at Device Tree stuff, but this is what I think I know. I2C-0 is intended for internal board management, so sort of reserved, except as a last resort. I2C-1 is available, but not enabled, on the BBB and is enabled/implemented on the PocketBeagle, so you could always loo

[beagleboard] I2C woes

2018-02-10 Thread evilwulfie
I will keep looking into this. more infos I took the current DTB file and decompiled it I looked at the I2C sections i2c0 = "/ocp/i2c@44e0b000"; i2c1 = "/ocp/i2c@4802a000"; i2c2 = "/ocp/i2c@4819c000";     i2c@44e0b000 {     compatible = "ti,omap4-i2c";   

[beagleboard] I2C woes

2018-02-10 Thread evilwulfie
More infos after reading a bit and seeing where to look I may have found the error msg. root@beaglebone:/home/debian# dmesg | grep i2c [    0.817817] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c0/scm@21/pinmux@800/pinmux_i2c0_pins, deferring probe [    0.818857]

Re: [beagleboard] Beagle Bone black, vdd_3.3 and vdd_5 shows 2.47v

2018-02-10 Thread evilwulfie
p8 and p9 pins start at pin number 1 can you try again? On 2/10/2018 10:33 AM, marrius9...@gmail.com wrote: > Linux beaglebone 4.9.45-ti-r57 #1 SMP PREEMPT Fri Aug 25 22:58:38 UTC > 2017 armv7l GNU/Linux > > I was trying to add a i2c device to bbb. After several failed > attempts, I measured the

[beagleboard] Beagle Bone black, vdd_3.3 and vdd_5 shows 2.47v

2018-02-10 Thread marrius9876
Linux beaglebone 4.9.45-ti-r57 #1 SMP PREEMPT Fri Aug 25 22:58:38 UTC 2017 armv7l GNU/Linux I was trying to add a i2c device to bbb. After several failed attempts, I measured the power on the rail. The voltage from pin0 to pin 3 shows 2.47v. As well frompin 0 to pin 5 which suppose to be 5V DD

[beagleboard] I2C1

2018-02-10 Thread evilwulfie
Can anybody with a green or black verify the odd behavior i am seeing on my greens and blacks ? I am using the latest IOT image root@beaglebone:/home/debian# uname -r 4.9.78-ti-r94 I use i2ctools and issue the commands root@beaglebone:/home/debian# i2cdetect -r 0 WARNING! This program can conf

Re: [beagleboard] x15 STEP file?

2018-02-10 Thread Rick Mann
Thanks for those suggestions, but that's way too much work. I guess I'll just design a minimal enclosure for my specific needs. > On Feb 9, 2018, at 18:58 , ybeag...@rehut.com wrote: > > Older versions of Eagle can do 3D exports. The process flow I have used with > Eagle6 is - > > Generate a