Write a simple C language function that initializes the GPIO bits on port B, such that bit 7 is an input with pullup enabled, bit 6 is an output, and no other bits are manipulated.

does your school have a tech support number? call your tech support! : d

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)