Hello! I'm working on the FRDM-K20D50M evaluation board and I use Eclipse-based Processor Expert to create a project.But I've got some troubles with GPIO configuration in the Processor Expert.
I'm trying to set the pin TSI0_CH3/PTA2/JTAG_TDO... as an output port in the GPIO_LDD component, but it tells me that this pin is already used by the CPU.
In the CPU panel, it shows,
In fact, what I wanna do is that, when the program runs, this pin should be a GPIO and when I download or debug the program, this pin should work as a JTAG port. Then how to deal with this problem? Please help me!