[solved]GPIO example -missing field?

I took a look around my DVSDK and could not find a GPIO example like you are referencing, so I am curious what version of the DVSDK you are using and what folder the example is under?

As a more general response to this, if the code is compiling and linking than the value must be defined somewhere, perhaps a nested header file.

EDIT: I just realized that based on prior posts you are probably working with DM6437, I will have to rethink this one.

So this time I think I have it, looking at the example in C:\dvsdk_1_01_00_15\psp_1_00_02_00\pspdrivers\soc\dm6437\examples\GPIO you are correct, the value GPIO_DIR01_DIR1 does not exist, even codesense cannot find it, yet it still builds...

The reason for this can be found within cslr.h and the definition of the CSL_FINS() macro, the macro actually takes the values you put into CSL_FINS and adds to them to form the actual and correct value (i.e. it puts on a CSL_ and a _MASK to complete the value), since this is done as a preprocessor step it is completed before the compiler gets its hands on the code, so when you put GPIO_DIR01_DIR1 in there the compiler actually ends up seeing CSL_GPIO_DIR01_DIR1_MASK and CSL_GPIO_DIR01_DIR1_SHIFT (since the CSL_FMK macro is nested inside the CSL_FINS macro). To prove this out you can change the value that is passed into the second argument of CSL_FINS and observe the resulting error messages to see that what the macros are really doing. For example if you change the line to:

CSL_FINS( gpioRegs->DIR01, GPIO_DIR01_DIR1OVERLYCOMPLEXMACRO, CSL_GPIO_DIR01_DIR1_OUT );

Than you should get error messages like:

"GPIO_example.c", line 77: error: identifier "CSL_GPIO_DIR01_DIR1OVERLYCOMPLEXMACRO_MASK" is undefined
"GPIO_example.c", line 77: error: identifier "CSL_GPIO_DIR01_DIR1OVERLYCOMPLEXMACRO_SHIFT" is undefined

Thus showing that the macro is adding in the CSL_ ... _MASK to the value.

Yes, later I noticed it was set up in the macro. This was the case first time I have seen such a thing.

Thank you.