Networking with SIMH (or QEMU) on Debian (buster)

When upgrading my system I discovered that there are some obvious (and not so obvious) changes needed to my original post on order to get networking to work with SIMH and QEMU.
Continue reading

Posted in Debian, Networking, Virtualisation | Tagged , , | Leave a comment

Drawing graphs using SVG

As it turns out is isn’t too difficult to draw graphs using Scaleable Vector Graphics (SVG) and which is really quite neat as newer web browsers allow you to embed SVG markup in an HTML page.
Continue reading

Posted in Linux | Tagged | Leave a comment

Installing lighttpd with support for Python CGI scripts

I like python and lighttpd so why not use them together!
Continue reading

Posted in Debian, Linux, Raspbian, Ubuntu | Tagged , | 1 Comment

Using the serial console device on a Raspberry Pi

Normally I configure the serial port on my Raspberry Pi to be the console port, but occasionally I want to be able to use it myself
Continue reading

Posted in Linux | Leave a comment

Accessing serial devices using Python

Having configured my Pi Zero as a USB serial device I decided to see if I could use it read and write to and from the hosts USB serial port using python.
Continue reading

Posted in Raspbian | Tagged , , | Leave a comment

Configuring the Pi Zero USB port as a serial device

Since I’m usually carrying a laptop anyway I find the easiest way to connect to a Raspberry Pi is using a USB serial cable and I didn’t think things could get any simpler – till now.
Continue reading

Posted in Hardware, Raspbian | Tagged , , | Leave a comment

Using Algol 68 to print the Fibonacci series

Three different solutions to the same problem illustrating some of the features of Algol 68.
Continue reading

Posted in Programming | Tagged | 1 Comment

Decoding BASE64 in ALGOL68

Decided to see if I could come up with a routine in ALGOL68 to decode BASE64 encoded strings, partly because I’d recently had to implement this in Powershell and partly because I just felt like it.
Continue reading

Posted in Linux | Leave a comment

Using VMware shared folders (on Debian)

VMware allows you to share folders between the guest and the host which is a very convenient way to move files between the two machines (though this should be avoided if you need any kind of separation between the two).
Continue reading

Posted in Debian, Linux, Virtualisation | Tagged , , | Leave a comment

Disabling l4tbr0

On the Jetson Nano the l4tbr0 network bridge it is enabled by default, if you want to disable it you can use the following two commands.

systemctl disable nv-l4t-usb-device-mode.service
systemctl stop nv-l4t-usb-device-mode.service

Note – Once the service has been disabled you can’t simply re-enable it again.

Posted in Linux | Leave a comment