Function stm32ral::stm32f3::stm32f373::spi::SPI1::take

pub fn take() -> Option<Instance>

Safe access to SPI1

This function returns Some(Instance) if this instance is not currently taken, and None if it is. This ensures that if you do get Some(Instance), you are ensured unique access to the peripheral and there cannot be data races (unless other code uses unsafe, of course). You can then pass the Instance around to other functions as required. When you’re done with it, you can call release(instance) to return it.

Instance itself dereferences to a RegisterBlock, which provides access to the peripheral’s registers.