jonr
Senior Member

It's interesting how something like this is so vastly superior. Plus no ground loops when using toslink. https://www.audiosciencereview.com/forum/index.php?threads/topping-e30-dac-review.12119/

To clarify, the MIMXRT1060-EVK can be used to temporarily replace a teensy 4. I haven't tried this one, but with previous eval boards, it wasn't hard to load and run teensy code. Unlike the T4, it then allows easy...

If you need a full featured debugger, the MIMXRT1060-EVK is probably your best option.

I got some new speakers. As always, the improvement with DRC was striking. Unless you have fantastic speakers and the perfect room and placement, I'd use it. The process: Measure speaker response with a...

Would be interesting to monitor chip temp while your code is running. I could easily image some area of the chip heating up with certain code.

What is your CPU clock speed?

Depending on the use case (limited writes, limited size), I second using flash - no battery needed.

Note that the DD4WH code is float32, it's just fed by 16 bit audio samples.

Yes, that is a good approach.

It probably isn't clear that it's more of a library that allows flashing teensy firmware. Unless you use the serial port, getting the data to the teensy has to be addressed with other code.

You can, although noise may be a concern.

What does an oscilloscope show on 52_Reset_B?

You have carefully gone through the troubleshooting described here? https://www.pjrc.com/store/ic_mkl02.html

> Doesn't look like MicroMod has any hardware debug capability available in their pin defiitions. I believe pins 21 and 23. Or could put a header on the CPU module.

Consider the LT3042.

So no hardware debugging capability?

It's a simple circuit. Put it into LTSpice and try it.