Add code to reflect USB ACM parity setting to the passthrough port alongside existing support for ACM baud rate changes. Some use cases for serial passthrough require specific parity settings.
For example, even parity is used and required by the USART protocol used in the STM32 system bootloader. This enhancement allows the use of standard flash programming tools such as STM32CubeProgrammer to flash connected STM based peripherals such as Receivers and Telemetry radios via serial passthrough. Some examples of such peripherals include the FrSky R9 receivers as well as various other STM based LoRa modules used by the mLRS project.
This fixes a bug introduced in this PR:
https://github.com/ArduPilot/ardupilot/pull/25900
the bug is that when we don't go via the bouncebuffer on H7 we were
also skipping the cache invalidate/flush ops. This caused data
corruption for filesystem operations, particularly noticible as lua
scripts failing to load with parse errors or log corruption
`__main_thread_stack_base__` and `__main_thread_stack_end__` are
variables whose address is defined to be the corresponding part of the
stack. These are declared as `extern stkalign_t` in ChibiOS code, and
being declared as `extern uint32_t` in ArduPilot code creates a warning
at link time when using LTO. Correct the declaration to eliminate this
warning.
Also update `__main_stack_base__` and `__main_stack_end__` which don't
currently trigger this warning but serve similar purposes and so might
in the future.
The hardware expects an alignment of `stkalign_t` (which is 8 bytes) and
the linker script defines the variable values with this alignment as
well, so this is safe.
No code size or functional change.
this fixes DMA failures affecting IMUs on H743. The reason for the
failure is not yet clear, but this reverts back to our old stragegy of
always using the bouncebuffer on H7 as a quick workaround
this allows for hwdef.dat lines like this:
PA8 MCO1 RCC
PC9 MCO2 RCC
you can control the scaling by defining the following:
- STM32_MCO1SEL
- STM32_MCO1PRE_VALUE
- STM32_MCO2SEL
- STM32_MCO2PRE_VALUE
add support for undef of STM32 lines and DMA_NOMAP
add support for F103 running at 24Mhz
add f103 variants of iofirmware
reduce memory usage in iomcu for new model
correct pwm output reporting
split iofirmware into config + mcu to allow f103 definition
don't enable non-existant timers on F103
Bob Long
bugobliterator
Andrew Tridgell
Brad Bosch
Leonardo Garcia
Thomas Watson
thu5cob
Andy Piper
Tom Pittenger