Harmonic Interference
=========================== HARMONIC INTERFERENCE by AK =========================== ASSEMBLY 2026 SUMMER =========================== Runtime: 2:51 - 171 s Hardware Requirements: Works on boards where PCB revision number is 2 or higher, pin GPIO_SD_B0_00 (SD CMD) is used as PWM output and is fed to a basic RC-filter circuit with an op-amp buffer to get a filtered analog output. Simucube Link Wheel Module, PCB revision 2+ -> Works on unmodified hardware without sound, for sound PWM output needs to be soldered, check video for correct pad -> Can be flashed through 10-pin Tag-Connect pads using SWD -> harmonic_interference__slwm_r2.hex RT1064 evaluation board (MIMXRT1064-EVK), binary should work and wake up the LCD (not tested) -> GPIO_SD_B0_00 (SD CMD) should be available on a pin header or through SD card slot -> Official LCD for the evaluation board has smaller 480x272 resolution, needs to be switched to a common 800x480 (4.3 or 5 in, eg. adafruit 40-pin TFT 800x480), uses common timings -> Remove the SD card before running the program as it uses SD CMD pin for audio -> Can be flashed with the integrated debugger on the evaluation board, or with external JLink etc. -> harmonic_interference__1064-evk.hex ============================= Specs: - Board: Simucube Link Wheel Module, might also work on RT1064 evaluation board with the correct .hex file - RT1064, 4 MB flash / 1 MB RAM + 8 MB / 32 MB external - 800x480 display resolution - Custom self-made 4-channel (8-oscillator) software synth + tracker - 2 oscillators + LFO per channel - ADSR envelope, pitch bend velocity, basic LP/HP/BP filtering - 44.1 kHz sample rate - Output through one PWM output, 500+ kHz carrier - MIDI data converted and stored as note track and timeline - No samples used ============================= Meet the Simucube Link Wheel Module: a display module for sim racing wheels, featuring a custom PCB I designed a couple of years ago. I've wanted to submit an entry to the Real Wild compo for years, and I finally have the perfect self-designed platform to code on! After porting DOOM to it (because of course), I decided to push it as a demo platform. All code running straight on the hardware, no RTOS. – AK ============================= Electronics: AK Code: AK GFX: AK Music: Vallatron ============================= External assets used: - Font library by phonght32 under MIT license, https://github.com/phonght32/fonts/ - Hardware driver examples for MCU hardware initialization, MCUXpresso SDK Repository 2.16.000 - No third-party graphics or audio samples used ============================= Third party licenses: [fonts] MIT License Copyright (c) 2020 phonght32 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. [MCUXpresso SDK, hardware driver examples] BSD-3-Clause Copyright (c) 2016–2024 NXP Semiconductors Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. =============================
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