AM335x PRU GPI parallel capture mode

The PRU data on R31[15:0] will be valid when the PRU (or firmware) sees the clock event on R31[16].

Regards,

Melissa

     So, you mean that I need to polling and read out R31[16], and check if it meets that the setting of positive or the negative edge.

If yes, then I can read out R31[15:0] to memory, so I need to polling R31[16] again and again until I read out all of data steam, right?

For the Direct mode (default one), do we have to do anything more than setting the right multiplexing for the PRU GPI pin (mode 6) and then reading from the appropriate bit in R31 ?

The value I read in is always '0' even when I give a high input to the pin. Could you please point out if I'm missing something ?

(My detailed post: http://e2e.ti.com/support/arm/sitara_arm/f/791/p/260853/912163.aspx#912163)

Thanks

Make sure the rxactive control, bit "5", of  the respective "conf_<module>_<pin>" register is "1" which enables the input buffer.

Regards,
Paul

Thanks a lot ! That did it !