We have been working a lot on the Stage2 board with different SW concepts and Ideas, and now it was time for testing advanced IRQ handling. Like setting up a timer on the serial chip and use that to blink the LED.

But when we flashed the ROM and started the application (the board has been standing unused on my desk for week now) nothing worked. So we scaled it back and only set the LED and just threw us in a loop after that. 

Flashing ROM.

Starting µLind...

The LED turned on, but after 2s it turns off. We measured the 5v and it was good and clean... If the only thing we do is to write a 2 in a register and then we loop, and that does not work... I'm clueless! 

So next step is to connect the logical analyzer and see what happens.... **Sigh**