Constant stm32ral::stm32l0::stm32l0x1::rcc::CSR::RTCSEL::RW::HSE

pub const HSE: u32 = 0b11;

0b11: HSE oscillator clock divided by a programmable prescaler (selection through the RTCPRE[1:0] bits in the RCC clock control register (RCC_CR)) used as the RTC clock