Can't find #define entry

Hello Leonardo,

Yes, these defines have changed for TM4C devices. The correct file to look for these defines is now in the driverlib/pin_map.h

You would have to define the correct part number for TM4C129 to get the correct PCTL value for the Pin Mux.

Regards

Amit

Hello Amit,

Thank you for answering.

But most defines have different logics, for example:

The old logic was:

GPIO_PCTL_PA0_U0RX      0x00000001

GPIO_PCTL_PA1_U0TX      0x00000010

GPIO_PCTL_PA2_SSI0CLK   0x00000100

...

GPIO_PCTL_PB02_CCP0   0x00000001

And the new one is:

GPIO_PA0_U0RX           0x00000001

GPIO_PA1_U0TX           0x00000401

GPIO_PA2_U4RX           0x00000801

...

PIO_PB0_U1RX           0x00010001

The previous logic was "RegX = (A | B | C)", but I can't understand the new logic.

I mean, does the logic really changed, or am I missing something?

If it has really changed, is there somewhere can I find the reason why?

Sorry for all the questions,

Thank you,

Hello Leonrado,

Yes, the method to apply PCTL has been changed in TivaWare, but not the logic in hardware. The new format allows for the Port, Pin and PCTL information to be made as a single define instead of just keeping the PCTL value. Secondly in the new format is much easier to bind the define to the actual part.

Regards

Amit

Hello Amit,

Thank you very much!

I could find the functions that use of the new defines on spmu298a.pdf.

I just have a final question: If I have to use a function like GPIOPinConfigure() to set every pin, don't the final binary get bigger/slower?

Thank you!

Thank you Amit!