Thanks for the response. I don't have anything I'd call a pipeline yet - I've got DAC to a piezoelectric buzzer that is good enough, but too quiet, for my first application. I don't think I'll go that deeply into any of the sound side, but if I can do generative sound in ADF that may be where I'll l...

I've been using the ESP32 via the Arduino software for a while (ported an existing codebase from another Arduino board), and have some questions on how to start doing some audio generation within my overall design. These are "ADF newbie" questions. I'm using the Adafruit Feather Huzzah32, and ideall...

Is there any reference to what runs on each of the cores of the ESP32 under a normal arduino application? Looks like the Arduino setup & loop are on core 1. The Ethernet callback function also seems to end up on core 1 (i.e. I'm using AsyncUDP, and the onPacket routine says it is on core 1). I belie...

Seven in one case, three in another.

Using lots of steppers, so nothing pre-built I could find. Through disassembly and hunting around found a few of the issues: xthal_get_ccount() is a subroutine call for a single assembly instruction - better to do the assembly equivalent to avoid call overhead. XT_CLOCK_FREQ is also a subroutine cal...

Got disassembly going, via objdump, on my Windows 10 box for Arduino compiles. Hope this helps other folks. Install the ESP-IDF tools (if you haven't already). See the homepage for how. Find the place where the Arduino tools do the build: https://www.kanda.com/blog/microcontrollers/avr-microcontroll...

Well, I at least found the object files.

C:\Documents and Settings\<user name>\Local Settings\Temp\arduino_build_<a number for that build>\sketch

Looks like it is time to install the ESP tools and figure out how to use objdump...

Any suggestions on how to get a disassembly of code for ESP32 under Arduino? Specifically:
(1) Any pointers to a disassembler that people like? I'm developing on a Windows 10 box.
(2) Any pointers to where the executables are stored when you are using the Arduino IDE?

Thanks in advance.

I'm working on code to interface to a motor controller with 1us and 200ns setup and hold time requirements. If I do timings via micros(), I'll be wasting a noticeable amount of time (probably 2-3 microseconds due to resolution issues), so decided to roll an alternative using ccount. But, the routine...

Okay, just had my second experience where digging through the pre-release versions of the ESP32 arduino core code turned up bug fixes that got me past blocking issues. So, my questions: (1) What's the right way to grab pre-release versions of the code? Right now I've been manually applying specific ...