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TMS570LS1224: Halcogen config SCI tx as GIO and SCI rx as normal?

Geert Jacobs
Prodigy 190 points
Part Number: TMS570LS1224
Other Parts Discussed in Thread: HALCOGEN

Using Halcogen I configured SCI rx as serial receive pin.

In the SCI tab I also set the SCI tx function as GIO and the direction as output.
There are no conflicts in the pinmux.

However after running sciInit() and using the instruction

gioSetBit(sciPORT,PIN_SCI_TX,1);

I see no change in the pin level.

Any ideas or suggestions are welcome.

  • 0
    TI__Mastermind 21425 points
    Hello Geert,
    Something that could be the problem is PIN_SCI_TX. It is defined as 4U in sci.h (if you are using this define), but the bit that has to be set/cleared is 2.
    Change gioSetBit(sciPORT,PIN_SCI_TX,1); to gioSetBit(sciPORT,2,1); and test.
    Please check whether the SCI checkbox is checked in PINMUX Tab as well....


    Best regards,
    Miro