I'm upgrading my project to use IDF v 3.3.1 now that it is marked stable. But I need to be able to OTA and run older apps that were compiled on previous versions. Isn't this supposed to work? If I flash my project via serial (including bootloader) built with 3.3.1 and then use it to OTA to a previou...

OK, it makes sense to use the makefile for this. I'm grateful for your expert guidance.
Thank you Angus.
-Paul

I would like to add a feature to a library that depends on IDF version 3.3 or greater, but would fail to compile with earlier. I need it to compile either way, just not including the new feature if not available. I see that IDF version 4 added this capability: https://docs.espressif.com/projects/esp...

I'll shared my hack to allow update of the factory app partition. Please see here:
https://github.com/chmorgan/libesphttpd/pull/81

Enjoy, no warranties, use at your own risk, of course.

Hi,
I see a similar issue with bootloader corruption. Please see my issue: viewtopic.php?f=12&t=13750

Did you ever find the root cause?

Thanks for your detailed and prompt reply. Does anything else write to flash from software? Yes, I am using NVS storage and a FAT filesystem on a partition "internalfs". I guess there could be a bug there too... Has the WROVER module spent any time in conditions that might have been out of spec? (ie...

This might not be helpful, but I'm using something close to the schematic here: https://github.com/OLIMEX/ESP32-EVB/tree/master/HARDWARE It is using an external crystal oscillator which is connected to LAN8720 pin 5 (CLKIN) and also to ESP32 GPIO0. I haven't tried to use the internal oscillator of t...

## Environment - Development Kit: [none, custom product using wrover module.] - Module or chip used: [ESP32-WROVER 16M] - IDF version: v3.1.3 - Build System: [Make] - Compiler version: xtensa-esp32-elf-gcc.exe (crosstool-NG crosstool-ng-1.22.0-80-g6c4433a5) 5.2.0 - Operating System: [Windows] - (Win...

Anyone? I've also come across the Microchip ENC28J60 solution which is being used in the Arduino community. It is only 10Mb vs. DM9051 10/100Mb. Will the speed decrease (from my current LAN8720) be noticeable with my simple web-server based on libesphttpd? ENC28J60: http://www.microchip.com/wwwprodu...

Wow, I left the battery world for a couple years and now there are fuel-gauges that don't need to measure current!? I'm betting there's some sophisticated algorithms and DSP going on in there. https://www.maximintegrated.com/en/products/power/battery-management/MAX17048.html I don't advise trying to...