Audio Output with the STM32F411 Microcontroller

I obtained an STM32F411 development board recently. Among other peripherals, it has a Cirrus CS43L22 audio DAC on the board and a typical 1/8" adapter allowing you to plug in headphones or typical PC speakers as shown below.

STM32F411 Connected to Speakers

Searching the web, I found a couple of code examples using audio with the…

Date: October 18th, 2017 at 7:04pm
Author: Terence Darwen
Tags: Embedded, STM32, STM32F4, ARM-Cortex-M4, CS43L22, Audio

Presenting at St. Louis C++ Meetup on August 9th

I'll be presenting some of my experiences using C++ for embedded development, specifically my ARM Cortex-M4F Synthesizer project, at the St. Louis C++ Meetup next month (August 2017). The meeting is free and open to the public. Please RSVP on the Meetup site here.

St. Louis C++ Meetup

My ARM Cortex-M4F Synthesizer (s…

Date: July 24th, 2017 at 10:10am
Author: Terence Darwen
Tags: C++, C++ Meetup, Embedded, Tiva LaunchPad, TM4C123G, ARM-Cortex-M4, Synthesizer, Synth

My ARM Cortex-M4F Synthesizer (Video Included)

Here's the current status of my ARM Cortex-M4F Synthesizer. Using a Tiva LaunchPad (ARM Cortex-M4F) development board and some various circuitry for MIDI input and audio output I've created a fully functioning synthesizer as shown in the video demonstration below.

The code is written in C…
Date: July 9th, 2017 at 4:59pm
Author: Terence Darwen
Tags: Embedded, Tiva LaunchPad, TM4C123G, ARM-Cortex-M4, Synthesizer, Synth, Sabbatical

Tiva LaunchPad (ARM Cortex-M4) LCD Menu System - Video Included

I've interfaced my Tiva LaunchPad (ARM Cortex-M4) development board with a small LCD screen as shown in the video below. The LCD screen is a Newhaven display, model number NHD-0420H1Z-FL-GBW-33V3.

Below is a circuit diagram I've drawn to show how everything is setup. It's fairly simple as…

Date: June 18th, 2017 at 8:12pm
Author: Terence Darwen
Tags: Embedded, Tiva LaunchPad, TM4C123G, ARM-Cortex-M4, LCD, Menu System, Sabbatical

Current Reading Material: BDD, C++ Metaprogramming and ARM Cortex Processors

Just an update on books I've been reading lately. Shown in the images below are "BDD In Action", "Practical C++ Metaprogramming" and "The Definitive Guide to ARM Cortex-M3 and Cortex-M4 Processors".


Behavior Driven Development (BDD) is something I've been interested in for a while now. I've been…

Date: June 9th, 2017 at 7:19pm
Author: Terence Darwen
Tags: Reading Material, Book Review, BDD, C++, Template Metaprogramming, ARM-Cortex-M4, Sabbatical