info:avr32_gpio_writing
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AVR32 UC3A controlling GPIO
For the UC3A0512, read the pin value register and then write to the output value register.
Set the output value of PORT0
AVR32_GPIO.port[ 0 ].ovrs = value ;
Clear the output value of PORT0
AVR32_GPIO.port[ 0 ].ovrc = value ;
Read the port pins
value = AVR32_GPIO.port[ 0 ].pvr ;
You can also use the .ovr function:
Example PORT0 has the value 0xAAFF55FF
And if i do AVR32_GPOI.port[0].ovr = 0x55AAFFBB;
then all the bits will change, because if you use the ovrs or ovrc you can only change set or clear.
info/avr32_gpio_writing.1240853783.txt.gz · Last modified: 2009/04/27 13:36 by tomgee