How to define a struct including multi pin

[leeqm]

I want to control multi GPIO , say multi pins in different port, the application is to drive a stepper motor, the driver pins are in different port, instead of doing output_high(PIN_x), is there a way to control all these pins at one time ?

Thanks

[PCM programmer]

See the set_spare_bits() macro in this thread:
http://www.ccsinfo.com/forum/viewtopic.php?t=18949

[leeqm]

I test with the 4 bit of different port, it works fine, Thanks

However I was wondering can I do it in the "struct" way ?

I searched about the Microchip C18 about the same question got like:

# How can I remap a group of pins on different ports into a single structure?

You can't. C places all of the members of a structure in address order. C does not support the concept of writing to scattered memory addresses in a single operation.

There is no simple or clean mechanism to logically rearrange port pins. The most straightforward technique is to write a function that encapsulates the necessary operations on the port pins. See the following three questions for further discussion.


Is this the same answer for CCS C compiler ?