Hi Eddie,
> These pins can be used as GPIO pins or used for DMA. The bootrom for the
> TS-7300 uses DMA, so by default these pins are configured for DMA. You
> can refer to the keypad example code for an example of how to reconfigure
> these pins as GPIO pins.
>
> http://www.embeddedarm.com/downloads/samplecode/keypad.c
>
> e.g.
> //Disable DMA on GPIO
> *(syscon + SFTWR_LCK) = 0xAA;
> *(syscon + DEVICE_CFG) = 0x08140d00;
>
Ah-ha!
I figured it was probably a pin multiplexing option, but
I guess I hadn't read enough of the datasheet/example code
to discover the solution, and there was no solution posted
to the original threads on this subject.
Thanks for the solution!
Cheers,
Dave
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