If you want to set both pin 0 and pin 1 to high, the third parameter should be 0x0003.
In this case: If your last parameter is 0xFFFF, both pin 0 and pin 1 will be set to high, while all other pins will be set to low. However, if your last parameter is 0x0003, only pin 0 and pin 1 will change to high, and the values of the other pins will remain unchanged. hui cj <[email protected]> 于2024年11月21日周四 15:24写道： > In your last example, it should be > usrp->set_gpio_attr("FP0", "OUT", 0xFFF , 0xFFF); > The third parameter should also be a mask. > > > Will Haftel via USRP-users <[email protected]> 于2024年11月21日周四 > 05:38写道： > >> This doesn’t quite work for me - in the last example I gave, I try using >> 1 mask to set all of the bits high but still only pin 0 is set. I am able >> to control all of the pins using ATR, but am not sure why the manual api >> isn’t giving me the same results. >> _______________________________________________ >> USRP-users mailing list -- [email protected] >> To unsubscribe send an email to [email protected] >> >
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