Incorrect peripherals

[Admsher]

I am using a STM32 F4 discovery and using this crate I was trying to use the blinky.rs for the same board but the pin seems to be different form what is given in the example ( for me it is gpioc.p0) , moreover the led only turns high and doesn't blink.

[burrbull]

Too few information and many potential reasons to fail.
What discovery board are you using? (ideally link to documentation).
Does RCC initialization finish correctly?