Have a look at the TeensyThreads library and put the display update code in a thread loop. I have a synth that updates the display this way and handles Midi and complex audio without noticable delay.
I think it's just good grounding that you get with a four layer PCB. Any noises I get are from USB plugged from a pc which can be eliminated with a cheap isolator in between. My display has no touchscreen as it didn't...
I'm using a four-layer board, with a Teensy MicroMod, PCM5102A and a similar ILI93141 display. I could run your code except there's no touch screen. I don't hear any SPI noise at all.
Hello, yes I've seen it! I was planning to steal the sequencer code eventually for my next project actually. The interface looks very nice. I'm using the same screen and the ILI9341_t3n library for this project too. The...
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