I'd like to get feedback on an attempt to pull audio of a single MEMS I2S microphone on one channel and run it through the ESP-DSP FFT library... The MEMS microphone produces I2S digital audio - 32bit words per channel, 24 bits of MSB aligned data per word, of which 18bits are significant. Data on n...

More specifically, getting access to BLE Mesh, compiling, uploading from arduino.cc

Adding arduino core to idf doesn't help here - I'd like to avoid multiple steps to get the code onto the board after writing it, which dictates merging the mesh libs into arduino core.

I'd love to be able to access the BLE Mesh functionality from my Arduino apps on the ESP32, and I've been thinking about the best way to do that. I'd like to get others thoughts too.... Obviously, the best way would be if Espressif rolled BLE Mesh into arduino-esp32 in the medium to long term, but r...

Exactly right, Sprite.

Thank you so much for your help and encouragement - I feel the week I've spend digging into this has been very productive and, weirdly given this is assembler, fun Learning a lot!

Thanks for the pointers, Sprite: I do not want to use inline asm - I did find the Xtensa ISA guide and am working my way through it. It's a little dry - but elsewhere I have not found much information from the point of view of basic Xtensa ASM routine setup and housecleaning. But it's been fun exper...

Hit there, I've decided to learn ASM again after a long hiatus, and I'm using Arduino Core C to call a basic test .S file I'm linking in. The call passes some parameters in and expects one back. I can see the in bound params hit A10 and A11, and sometime I can ASM to complete a call and return somet...