When I change a source file and then execute "idf.py build" (on Windows), the required files will be compiled and a new *.bin file for the application is created. However the compile time/date in the image header of the build file is not updated (time of first build probably). How can this be fixed?...

To create very efficient code to write to an SPI LCD I tried to alternate between SPI_W0_REG..W7 and W8..W15. While the SPI is sending out the data, the CPU will calculate and fill the other range in place. So the gap between transaction only consists of toggling usr_mosi_highpart and starting a tra...

I use a modified bootloader which allows me to select (using RTC memory) whether the image from the factory or the OTA0 partition should be loaded. On Power-On the factory APP is started. When the factory APP verified, that everything is ok and up-to-date, it boot the OTA App. The problem is, that t...