houtson
Senior Member

Hi - in that link it is the second circuit - with a different opt-isolator https://diyelectromusic.files.wordpress.com/2021/02/diy-midi-receive-3.3v-v2_schem-1.png?w=1023&h=&zoom=2

Hi @Tombot7 - the Teensy 4 pins are not 5v tolerant, it looks like you are driving them to 5v which will likely cause damage. They are designed for 3.3v. Either use a Teensy 3.x which can take 5v or look at a...

https://www.adafruit.com/product/4226 - might be of interest ?

The circuit will likely fix your feedback problem (without needing the filter). What is the source that you are trying to connect ?

wow, that looks crazy - I want one!

@teensytwo - what sort of circuit are you using for the input?

I knew I had read about his somewhere, some useful real world testing detail (especially if you want to implement continue) in this link If you get stuck there are still commercial products out there, I use Synchole...

Hi, cool that you have a CR 5000. I'm not speaking from in-depth experience of doing this with teensy but a couple of points: - Din sync just counts pulses (rather than frequency) - your myClock routine is only...

@luni, I used your code at #3 - it works great. I added a marker like you suggested for 'report available' and also one for 'report read' so you can see new crash reports. Thanks Paul.

@luni - thanks, our posts crossed - your solution looks much better (esp. the terminator). Cheers, Paul

Thanks @Defragster, that helps. As a quick hack I've used StreamUtils to write it to EEPROM on restart and then read it out at leisure. I don't think there is an end of report marker and the CrashReports have...