toyosm

Oh sheessh... happened to me once. Forgot to make visible the ground planes when exporting and there wasn't on the gerbers, a real pain. When ordering on JLCPCB you can open a gerber viewer to check layer by layer. I recommend you to do so every...

Well lookee here ... it's yet another Teensy-based synth ... or might be, if I ever finish it. But it says "Blog" in the category heading, so this may serve to stimulate discussion if nothing else, and if I'm moved to do so I can report progress...

I got this codec to function with a driver I wrote in slave mode (couldn't make it work with the one provided by PJRC, even with the configuration changes posted on the forum), but I can hear a noise on the background of the signal, like a...

Keep in mind that the SGTL5000 is pretty noisy by itself, the ground noise is a bit high

Oh perfect, so no need to use the crystal. Thanks

I want to try the CS4272 codec and I'm not sure about if the default option on the Audio Library for the control object for the CS4272 is on master or slave mode. The question is, do I need to use the crystal or not. I would prefer not to use it

The driver library and Windows / MacOS client software have been updated to support streaming buffers over USBSerial1. Just need a bare Teensy 4.x and a USB cable!

I use my own menu function with touch buttons (is still in development) My menu pics from Degenerator 2 with PrintScreen

Which library are you using for menus?

My bad, I had a 1M resistor on the VAG cap, read somewhere that can improve noise. Obviously did because now the signal is super low!.

Hey guys, I'm making some measurements on a board with the SGTL5000. I'm injecting a 1Vpp 1KHz sinewave on the input (with variable gain), on the code side only have a passthrough (I2S input directly to I2S output). I cannot get more than 230mVpp...

I'll take a look at FlasherX

This is really cool and super useful, I hope can support .ehex files in the future!

Well, finally the problem was a manufacturing one... I made a batch of 5 pcb's, the first one that I grabbed is the only one of the batch that doesn't work!. Thanks for the answers, was an interesting testing

I have 0v on either side of L2, using the DCDC_PSWITCH as trigger

Well, I managed to "solve" or at least "patch" this issue with a DC Blocker code snippet, now I have the signal centered to 0 as it should be and can change the amplitude way better than before, here's the snippet if someone else wants to use it...

I made a couple of boards based on the MicroMod gerbers on Sparkfun site. After power up I have a 2 blink error from the bootloader stating "2 Blinks = NXP JTAG Not RespondingNo communication is working! The 2 likely causes for this problem are...

I'm going to try the arm_float_to_q15 to see if there's any difference

I'm working on a reverb algorithm, heavily based on Pio's plate reverb techniques plus a bunch of other Audio Blocks for filtering and other effects. I was having some troubles with the levels, the overall output signal becomes too low and I had...