- rcc_get_i2c_clk_freq: Add support by taking RCC_CCIPR2 into account for I2C4.
- rcc_get_timer_clk_freq: Add support for LP timers
- rcc_get_usart_clk_freq: Fix APB freq used for LPUART1 and UART1, respectively.
This commit adds support for NRF52 TWI Master mode and slightly extends
existing I2C API. This is a breaking change, while mode selection needs to be
done during enabling I2C. There is one additional breaking change done because:
1) Unicore MX API design was PITA for writes
2) It is incompatible with EasyDMA
I strongly apologize to all two users who might be affected by this change.
Presumably copy/paste error in original submission.
Verified in RM0440rev1 and rev5.
Fixes: c26eab251
Reported-by: qyx on the internet
Signed-off-by: Karl Palsson <karlp@tweak.net.au>
* merged: nrf tree from unicore-mx
* fixed: small changes to make merged code play with rest of locm3 again
* added: linker script generator defines for nRF51/52 stubs
* added: doxygen support
This removes code and changes names and styles where relevant to be more
inline with normal libopencm3.
NRF52x library is built for hardfloat, M4F by default. The M4 no float
variants are less common, and if needed, the library can be built
manually for those variants. Unless some very common boards show up
using those parts, we don't need an extra library build.
Reviewed-by: Karl Palsson <karlp@tweak.net.au>
Tested-by: Karl Palsson <karlp@tweak.net.au>
F411 parts, found on "black pill" boards support 100MHz operation,
but only 96MHz with USB. Provide default clock structures for this
common max speed.
Reviewed-by: Karl Palsson <karlp@tweak.net.au>
Nothing extra needed to be defined here - this might've just been missed
when adding STM32G0 support. Tested and works well on an STM32G051. Registers
in `stm32/common/dac_common_v1.h` match the STM32G0x1 reference manual.
Fix FDCAN FIFO acknowledge register definition to make it correct for H7
MCUs. Previous definition contained hardcoded offset instead of using
MCU-specific macro.
Fix incorrect decoding of buffer element size. During decoding, value
returned was erratically set to 7 instead of setting 4th LSB. Buffer
element size was then always reported as 15 bytes.
Fix the bug where certain functions were returning meaningful return
and/or error code, where positive values of error codes were interfering
with meaningful return value. Error codes now have negative values as it
was originally intended but never implemented.
FLASH_BASE was already defined for some and PERIPH_BASE for all but one,
but this makes these available for all families. Note that the value is
identical for all familes (I doublechecked the more exotic ones such
STM32H7), but it is still useful to have these defines to make code more
readable and so that libopencm3 users can write portable code without
having to check that these are identical on all STM32 families.
Added some descriptions for missing parameters, (hopefully) clarified
some along the way. Fixed all can related warnings in doxygen logs.
Added doxgen tags where meaningful comments had been provided. Dropped
redundant comment separators.
Add stm32h7 support for FDCAN peripheral. Source level compatibility is
provided with stm32g4. Additional features of stm32h7 such as
configurable buffers are supported. Implementation offers feature parity
with stm32g4 implementation.
Add stm32g4 support for FDCAN peripheral. Normal / FDCAN operation
supported, bitrate switching and filtering supported via API.
Timestamping and transmit event buffer support in API are TBD.
Originally tracked as: https://github.com/libopencm3/libopencm3/pull/1317
Reviewed-by: Karl Palsson <karlp@tweak.net.au>
Worked in nuances for differences between versions of STM32H7 devices, such as
handling of ODEN, explicit SCUEN bit, and different VOS mappings. This has
been validated on the STM32H7A3 and STM32H743 MCUs.
Oskar
Vlad Logyin
Stefan Tauner
Karl Palsson
me@me.net
Eduard Drusa
Karl Palsson
Parth Panchal
Marek Koza
Keenan Tims
Evgenii Iarkov
Will Gallia
Dima Barsky
Luna Gräfje
Tim Børresen
Bastian de Byl
Mikael Lövqvist
Stephen Holdaway
Matthijs Kooijman
Jean THOMAS
Brian Viele
Gwenhael Goavec-Merou
Jacob Potter