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ssp mosi & open drain mode

Question asked by Hendrik Sachse on Aug 27, 2017
Latest reply on Sep 6, 2017 by Kerry Zhou

Why is it not possible to configure SSP MOSI as open drain?

I know this is not a normal operating mode for MOSI, but I wanted to use the SSP controller for the bittimings of a onewire bus. It would have been nice and easy without a need for external components if I could have set the MOSI as open drain.

But as soon as I set it to open drain, either via Chip_IOCON_PinMuxSet or via the debugger, it reverts to standard_gpio_output mode.

 

Regards

Hendrik

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