[beagleboard] Re: Putty disconnects while on wi-fi and will not connect again unless I unplug and re plug BBB

Connect Putty to an FTDI serial cable and plug it into the console serial port. That will never go away. --- Graham == On Sunday, November 13, 2016 at 6:48:05 PM UTC-6, Constantinos Arvanitis wrote: > > Hi there forum group. I have configured BBB running on *Edimax* wi-fi > with a 5 V power s

[beagleboard] Re: how to enable i2c for beaglebone rev c.

Insufficient information. What version OS are you running? If you are running one of the recent Debian releases, I2C-2, (in early software was called I2C-1) which is the one that comes out to detect other capes, on P9-17 and P9-18 is already enabled, and ready to use. There are four (EEPROM me

Re: [beagleboard] PMIC does not charge battery

I would think this is by design; a lithium battery below some minimum cell voltage is probably damaged and should not be charged. I don't know how the PMIC decides the charge profile, though, so I don't know what it might be doing. > On Nov 13, 2016, at 14:05 , William Hermans wrote: > > We'v

[beagleboard] Re: Beaglebone Green - Experience and Notes

Period 1 us On Sunday, November 13, 2016 at 4:09:06 PM UTC-6, Chris M wrote: > > Some thoughts and findings as I begin to learn the BBG (Beaglebone Green)

[beagleboard] how to enable i2c for beaglebone rev c.

need help..anyone can answer cannot detect address device thermal .. -- 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, sen

[beagleboard] Putty disconnects while on wi-fi and will not connect again unless I unplug and re plug BBB

Hi there forum group. I have configured BBB running on *Edimax* wi-fi with a 5 V power supply, all works when first power-up, I open the Putty and log in with my assigned static ip however when BBB disconnects because of (whatever or just a standard reboot request), BBB needs to be unplugged fr

[beagleboard] Re: Beaglebone Green - Experience and Notes

6) PWM experiments I wrote three python scripts to run pwm on mraa pin 62 (P9-16). Remembering the mraa library is now v1.0 and not 1.5. period range max <1 sec. min 1us (using _us) when using .write() to set the duty cycle results in some screwy things happening and locking up of the pwm chip.

Re: [beagleboard] Re: Beaglebone Green - Experience and Notes

On Nov 13, 2016 4:25 PM, "Chris M" wrote: > > 1) The first tutorial blinking the four onboard leds. > > I did the tutorial using bonescript and also by using echo > at the prompt to change the corresponding files ( /sys/class/leds/beaglebone\:green\:usrx) > > ISSUE FOUND: > One thing I wrestled wi

[beagleboard] Re: Beaglebone Green - Experience and Notes

http://exploringbeaglebone.com/ Note the "Chapters" in the upper right. There is a huge amount of info here! -- 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 g

Re: [beagleboard] Re: Beaglebone Green - Experience and Notes

doing real time things in userland dont work well. Using the PWM is the best way to step motors On 11/13/2016 4:33 PM, Chris M wrote: > > > 4) playing with stepper motors - Python > > > I first mimicked the bonescript to us the GPIO pins to run the stepper > motor. I noticed I could run it fas

[beagleboard] Re: Beaglebone Green - Experience and Notes

5) Useful links so far. mraa API http://iotdk.intel.com/docs/master/mraa/python/mraa.html Installing gzip packages in linux http://www.howtogeek.com/howto/uncategorized/linux-quicktip-downloading-and-un-tarring-in-one-step/ DRV8825 wiring https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=image

[beagleboard] Re: Beaglebone Green - Experience and Notes

The bonescript stuff is cool and the way it works with the webserver is fascinating. It's possible you may hit a few limitations quickly. I think you might already be there. So next, get Derek Molloy's outstanding book "Exploring Beaglebone". Start reading and trying the examples in this book.

[beagleboard] Re: Beaglebone Green - Experience and Notes

4) playing with stepper motors - Python I first mimicked the bonescript to us the GPIO pins to run the stepper motor. I noticed I could run it faster than I could with bonescript, but would still get the same issues just at better speeds. I then tried setting the pin to run as a PWM output. I

[beagleboard] Re: Beaglebone Green - Experience and Notes

3) playing with stepper motors - Python My next try was to use python as there are many included examples with the Cloud9 IDE. ISSUE FOUND: Importing the BBIO library causes the python program to crash. Apparently, BBIO is not yet compatible with the linux kernel (4.x) the BBG ships with. Almo

[beagleboard] Re: Beaglebone Green - Experience and Notes

2) playing with stepper motors. I hooked up a nema 17 stepper motor via a DRV8825 Stepper Motor Driver basically using the same led tutorial bone script to drive the GPIO pins to run it. The DRV8825 current limit instructions and youtube videos are unclear how to set up. I learned the hard wa

[beagleboard] Re: Beaglebone Green - Experience and Notes

1) The first tutorial blinking the four onboard leds. I did the tutorial using bonescript and also by using echo > at the prompt to change the corresponding files ( /sys/class/leds/beaglebone\:green\:usrx) ISSUE FOUND: One thing I wrestled with was the leds by default do not follow the predesc

[beagleboard] Beaglebone Green - Experience and Notes

Some thoughts and findings as I begin to learn the BBG (Beaglebone Green) -- 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 i

[beagleboard] PMIC does not charge battery

We've been observing that the PMIC does not charge a battery that is below a certain voltage threshold. So obviously, when a battery is at or around 0v it will not charge that battery. As well as when the battery is at around 1v the PMIC still will not charge. I was wondering if this is normal

Re: [beagleboard] Re: Use eQEP on 4.4.23-ti-r51 kernel

It's a simple read. Learn how to read a file in Python, and your problem will be solved. On Sun, Nov 13, 2016 at 12:50 PM, Dennis Lee Bieber wrote: > On Sun, 13 Nov 2016 10:44:05 -0800 (PST), Theodosis Ntegiannakis > declaimed the > following: > > > > >Now my only problem is how to read positio

[beagleboard] connect tow board together

hello i want to connect tow broad together in SPI protocol i cant find where to buy the Expansion cable, or even his right name. i find the head connector but without cable. is some can help with that, or even share some knowledge how to connect tow broad together Thanks -- For more options, v

[beagleboard] Problems clearing PRU event,,,

Hi, I'm trying to send events from a PRU C program to the host. At the moment my PRU code just delays for 1s, then activates PRU_EVTOUT_1 and toggles an LED so I know it's working ok. My host program sits there waiting for the PRU_EVTOUT_1 event, then is supposed to increment a counter and clea

[beagleboard] Re: Use eQEP on 4.4.23-ti-r51 kernel

I am sorry for the multiple messages but I am finding new information every time! eQEP just worked! The only pins i could enable with config-pin though are P8_11, P8_12, P9_27, P9_92 (42B). P8_33 and P8_35 still have the invalid mode qep. Now my only problem is how to read position from python

[beagleboard] Notes on using Beaglebone Green from a novice

Hello All, Ive spent a few frustrating days wading through an alien environment which is called the Beaglebone green (BBG for the pros). and the debian / cloud9 ide environment and would like to share some of the things I find as a go along. (Disclaimer I am a mechanical engineer, and barely kno

[beagleboard] Re: Use eQEP on 4.4.23-ti-r51 kernel

Just updated kernel to 4.4.31-ti-r67. now i can find position and period in the /sys/devices/platform/ocp/48304000.epwmss/48304180.eqep/ but cat position keeps returning 0. when trying to use other pins: config-pin P8_33 qep and config-pin P8_35 qep it returns invalid mode qep the same in P8_

[beagleboard] BBB - tda998x - sii9022a

Hi, I am trying to debug beagle bone black QNX Graphics driver code (HDMI), the code I am using is dated back to 2012 .. I see the code is referencing to sii9022a chip instead of tda998x .. Any idea ? Both are compatible or any older BBB hardware version had this chip ? Regards, Varghese. --

[beagleboard] Use eQEP on 4.4.23-ti-r51 kernel

Hello all, I am trying to read a Quadrature Encoder with the Beaglebone Black using kenel 4.4.23-ti-r51 and Ubuntu. I have enabled cape-universala and also enabled pins P8_11 and P8_12 using: config-pin P8_11 qep config-pin P8_12 qep But i cannot find "position" or "period" in the /sys/devic

[beagleboard] Re: BeagleBone Green Wireless

Hi James! You neither need a Grove Cape nor any other additional hardware. Just configure header pins as GPIO input with pull-up resistor and connect simple buttons to pull the pins down to ground when pressed. Check out the button example

[beagleboard] Re: Flashing a BBB's EMC from uSD Card - problems

Thanks for that. Indeed, updating the uEnv.txt file (using nano) WITHIN the //boot/uboot/ folder ON the uSD card worked a treat (needed (obviously) USB-network access to achieve this) ! Cylon-style lights etc... followed by a reboot all good ! Wow, was I pleased !! However, the sting, is that t