667: Remove duplicate stm32-metapac/src/common.rs with chiptool r=Dirbaio a=nviennot
There's a duplicate file common.rs with the chiptool crate. This PR makes the source of truth the one in chiptool.
This PR is a good pair with https://github.com/embassy-rs/chiptool/pull/4
Co-authored-by: Nicolas Viennot <nicolas@viennot.biz>
661: Add support for splitting stm32 usart into TX and RX r=lulf a=lulf
* Keeps existing API for usart, but wraps it in Tx and Rx sub-types
* Adds split() method similar to nRF for getting indepdendent TX and RX
parts
* Implements e-h traits for TX and RX types
Co-authored-by: Ulf Lilleengen <ulf.lilleengen@gmail.com>
* Keeps existing API for usart, but wraps it in Tx and Rx sub-types
* Adds split() method similar to nRF for getting indepdendent TX and RX
parts
* Implements e-h traits for TX and RX types
* Add stm32h7 example
662: stm32: Finish unifying spi versions r=Dirbaio a=GrantM11235
Notable changes:
- `set_word_size` is always called before disabling SPE. This is important because `set_word_size` may or may not re-enable SPE.
- The rx buffer is flushed on v1 as well. I don't know if this is required.
- All functions are now generic over word size
Co-authored-by: Grant Miller <GrantM11235@gmail.com>
640: Skip EasyDMA slice location check for empty slices and copy data if necessary r=Dirbaio a=TilBlechschmidt
As discussed, this PR makes the following changes:
- Ignore pointer location of zero-length slices (fixes#631)
- Change default functions so they copy the tx buffer if it does not reside in RAM
- Introduce new variants for `write`, `transfer`, and their blocking versions which fails instead of copying
- Add documentation about the motivation behind all these variants
<img width="984" alt="image" src="https://user-images.githubusercontent.com/5037967/155415788-c2cd1055-9289-4004-959d-be3b1934a439.png">
Remaining TODOs:
- [x] Change copying behaviour for other peripherals
- [x] TWI
- [x] UART
- [x] Add module-level documentation regarding EasyDMA and `_from_ram` method variants
`@Dirbaio` it probably makes sense for you to review it now before I "copy" over the changes to the other two peripherals.
Co-authored-by: Til Blechschmidt <til@blechschmidt.de>
