I would start by sending data out of the LEUART and check if you see it on the TX pin.

Then I would try not to sleep in EM2 and see if the interrupt service routine is reached.

Beware, btw. that the LFRCO is too inaccurate for a decent UART baudrate. It is highly voltage and temperature dependent.

You may consider to implement this by yourself with python since the hex2boot and efm8load are open source.

Where can we download the sources for hex2boot?

Please don't SHOUT

@erikm

Let's try it out. Please respond when you read this.

Hi,

When browsing the forum on a netbook with a screen of 1024 pixels wide, using Firefox on Linux, I can no longer reach any forum but the Expert's Corner. The menu bar is split while there is plenty of room on the right. And clicking e.g.MCUs does not make the submenu stick.

Please fix this (for the second time)

Maarten