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stm32-rs / stm32l0xx-hal

A hardware abstraction layer (HAL) for the STM32L0 series microcontrollers written in Rust
BSD Zero Clause License
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serial doesn't seem to work at all #103

Closed nebelgrau77 closed 4 years ago

nebelgrau77 commented 4 years ago

I'm trying to use the serial example on STM32L031K6 Nucleo board. I'm getting the following compilation errors: 

error[E0432]: unresolved import `stm32l0xx_hal::serial`: no `serial` in the root

error[E0599]: no method named `usart` found for struct `stm32l0::stm32l0x1::USART2` in the current scope

.usart(tx_pin, rx_pin, serial::Config::default(), &mut rcc)
          ^^^^^ method not found in `stm32l0::stm32l0x1::USART2`

in fact I can't find these in the documentation, but they clearly do exist in the actual src code in the repo. How can I get it to work?

dbrgn commented 4 years ago

You probably didn't specify your MCU (see https://github.com/stm32-rs/stm32l0xx-hal/blob/b8147f13c455942b4374c353b33b486e23b30172/Cargo.toml#L97-L258).

For the STM32L031K6 you need features = ["mcu-STM32L031K6Tx"] or features = ["mcu-STM32L031K6Tx"], depending on which MCU you have. (If you aren't sure which exact MCU you have, you can also use features = ["io-STM32L031", "stm32l0x1"].)

dbrgn commented 4 years ago

We should probably add a note about that in the README...

nebelgrau77 commented 4 years ago

Thanks! I was just missing the "io-..." part in the features block. Now it's working as expected :)