We have one of freescale development tools PBMCUSLK with HCS12CSLK in our university Middle East Technical University, and trying to create lab manuals for next semester of microprocessor labs. We stuck on one point and wanted to ask you:
We have MC9S12C128 microprocessor module and running CodeWarrior 5.9.0. We can use the microcontroller and software well, no problem. But we need to be able to simulate an input also to make student able to work as preparation to labs. To do it, we are setting DDR of PortB as input, connecting a switch trough visualization tool to bit0 of port B but cannot toggle the switch. As an input, data on the register cannot be altered to 1 (logic). If we set DDR as output, that time we be able to toggle it and change the output, but that is not what is want.
So I would like to ask you if input simulating is not supported. Also I would like to know if input simulation is allowed, is it able to simulate IRQ interrupt using that.