STM32 - esorensen.com

STM32

A collection of 6 posts

Denmark: Amplifier Module

Denmark: Amplifier Module

This post summarizes the build of an ICEpower-based 3-channel amplifier with DSP crossovers.

LCD Control Board for SX3 Mill

LCD Control Board for SX3 Mill

The LittleMachineShop control board replaces the button board built in to the mill, so when the spindle control board is connected the buttons and LCD built in to the mill are no longer functional. I designed a drop-in replacement for the button board to help add back some functionality.

Loop Antenna - Initializing the TMC2130

Loop Antenna - Initializing the TMC2130

Continued from part 4. Now that I can read and write across the SPI interface I am going to write an initialization routine for the TMC2130. Fig 22.1 and 22.2 in the TMC2130 datasheet show a "quickstart" routine for the TMC2130. First, here is 22.1: At "SC2"

Loop Antenna - SPI Read and Write

Loop Antenna - SPI Read and Write

Continued from part 3. Now that I have confirmed the stepper driver is working properly, I want to establish SPI communication for configuration and status readback. This will be especially important to enable the stall detection feature I am using for homing. First, I wrote a function to read and

DDS RF Signal Source

DDS RF Signal Source

In 2017 I designed a local oscillator board which can be used to generate an RF signal in the HF range (< 30MHz). I hope that this can become the building block for a more complete radio design, so I included a lot of expansion options including an I2S interface, I2C,

Loop Antenna - Motor Control Part 1

Loop Antenna - Motor Control Part 1

Continued from Part 2. I am starting to work on the automatic tuner for the magnetic loop antenna. I will implement the various functional blocks in the following order: 1. Motor control and homing 2. SWR measurement 3. Seeking algorithm to store history and tune quickly Component Selection: I am