Mark A. Yoder <mark.a.yo...@gmail.com>
Fri, Aug 17, 7:58 AM
to BeagleBoard
The PRU cookbook is nearing completion (more accurately, I'm running out of
summer).

Here's a link https://markayoder.github.io/PRUCookbook/

I'm happy for any feedback you can give me.

--Mark

Great format, I really like it online.
To test it I choose a BeagleBone Black Wireless (as it turns out it was
spare) and it already had a version 4.9 onit and upgraded it to
Linux beaglebone 4.14.69-ti-r75 #1 SMP PREEMPT Thu Sep 13 23:34:50 UTC 2018
armv7l GNU/Linux

Initially I followed instruction using USB, but then changed to wireless.
Following is suggestions/observations

https://markayoder.github.io/PRUCookbook/02start/start.html

1.3. Flashing a Micro SD Card

Solution

Once the SD is flashed, insert it in the Beagle and power it up.

<Add> To permanently copy the image to the Beagle, copy it to Beagle flash.

[Reference to flashing beaglebone but post 4.4]

sudo nano \boot\uEnv.txt  - remove from #cmdline

##enable BBB: eMMC Flasher:

cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh



toexit: save

sudo powerdown

Then press power button.

The device upgrades, and then powers down.

Remove uSD before pressing power switch.



<end>

1.4 Cloud9 IDE



<Comment > for windows http://192.168.7.2:3000, for other computers see…
<end>



1.5 Getting Example Code

<add > Setup for internet.

Ethernet - connected automatically

USB - <setup>

<wireless > needs to be connected to the wireless

<end>



<comment 4.14.69-ti-r75 using USB>

The following is repeated a number of times in different place:

git clone https://github.com/MarkAYoder/PRUCookbook.git

Cloning into 'PRUCookbook'...

fatal: unable to access 'https://github.com/MarkAYoder/PRUCookbook.git/':
Could not resolve host: github.com

when setup for WiFi - it worked.

<end>



1.6. Blinking an LED

Running Code worked for me



https://markayoder.github.io/PRUCookbook/03details/details.html

1.2 Compiling and Running

<comment >

debian@beaglebone:/var/lib/cloud9/git/PRUCookbook/docs/06io/code$ source
gpio_setup.sh

PRUN=0

TARGET=gpio1

Wireless Not Found

$ cat /proc/device-tree/model

TI AM335x BeagleBone Black Wireless



workaround - make all defaults of pins P9_11

<end>

1.8 & 1.9 not checked.

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