You'll want to use regular printf, not ets_printf, and:

Whoops... indeed that was for debugging. Thanks for pointing it out - I had it on my todo list to work out why Esplorer wasn't happy loading the file list but now I know

Not quite what you asked for, but you can find the overall Xtensa Instruction Set Architecture (ISA) Reference Manual document e.g. here . It's not specific to the 108s that you'll find in the ESP32, but between the ISA doc and the components/esp32/include/xtensa/config/core-isa.h header you can pre...

As WiFive already mentioned (and linked to), in NodeMCU I've got the UART hooked up to stdio for input. It was surprisingly easy to do.

It's the glue that helps drive the DHCP client & server in response to WiFi events.

@ESP_Sprite Yes, there is. NodeMCU is designed to handle being flashed to different sizes of flash chips and Do The Right Thing automatically. As such we don't at firmware build-time know what the size of the file system will be (or necessarily even where it will be). On the ESP8266 we use a combina...

I'm already using the partition table to establish a SPIFFS partition in NodeMCU; You might find that code a useful reference. It's in the NodeMCU repo, on the WIP esp32 branch. Once there's an official Espressif API, we'll probably start using that. Wasn't going to wait for that though

Thanks, that gave me access to the rest of the flash! Sweeeet

Is there any (easy) way of reading out the existing values before clobbering them via SPIParamCfg()?

I had assumed that the ESP3212 module I got had a 4MB flash since that's what the bootloader reports: ************************************** * hello espressif ESP32! * * 2nd boot is running! * * version (V0.1) * ************************************** compile time 18:13:20 SPI Speed : 40MHz SPI Mode ...

Having now actively worked with the IDF over the last week, I must say this is really, really nice ! Despite it still being the early days, it's feeling very slick, powerful and friendly. Sure, the docs are still a bit short in quantity, but certainly not in quality. And while I've certainly got a s...