Thoughts on "Making Embedded Systems" by Elecia White

I recently finished reading Elecia White's book "Making Embedded Systems: Design Patterns for Great Software". Elecia is a highly experienced professional embedded software engineer and also host of one of my favorite podcasts, Embedded.fm.

Embedded Systems Books

"Making Embedded Systems" was a great follow up to Jona

Date: May 3rd, 2017 at 4:52pm
Author: Terence Darwen
Tags: Book Review, Reading Material, Embedded, Tiva LaunchPad, TM4C123G, ARM Cortex-M4, Sabbatical

Interfacing a MIDI Keyboard with a Tiva LaunchPad (ARM Cortex-M4 Processor)

I've managed to interface a typical MIDI keyboard controller (an M-Audio Oxygen 61) with my Texas Instruments Tiva LaunchPad (ARM Cortex-M4) development board as shown below.

MIDI Keyboard, Tiva LaunchPad and Circuit

By doing some Googling I found out that the MIDI protocol is a typical UART connection running at a baud rate of 31,250. Th…

Date: April 26th, 2017 at 4:24pm
Author: Terence Darwen
Tags: Embedded, Tiva LaunchPad, TM4C123G, ARM Cortex-M4, Synth Project, MIDI Keyboard, Sabbatical

Tiva LaunchPad (ARM Cortex-M4) Simple Synthesizer

I created a simple synthesizer using my Texas Instruments Tiva LaunchPad (ARM Cortex-M4 chip) and a few other items. Please see the video below for a demostration.


As mentioned in the video, I used a couple of my earlier projects (dual I/O expanders and my 16 bit DAC) along with some typic…

Date: March 29th, 2017 at 11:54am
Author: Terence Darwen
Tags: Embedded, Tiva LaunchPad, TM4C123G, ARM Cortex-M4, Synth Project, Synthesizer, Sabbatical

Using Dual MCP23S17 I/O Expander Chips with the Tiva LaunchPad

In a blog post a few weeks ago I showed how I had been using an I/O expander chip with the Texas Instruments Tiva LaunchPad to provide eight additional inputs using a single serial connection. I've managed to increase this to 32 inputs.

Tiva LaunchPad and Dual MCP23S17 Chips Annotated

I did this by using dual MCP23S17 I/O expander chips as shown…

Date: March 1st, 2017 at 8:43pm
Author: Terence Darwen
Tags: Embedded, Tiva LaunchPad, TM4C123G, ARM Cortex-M4, Microchip MCP23S17, I/O Expander, Synth Project, Sabbatical