use regular ChibiOS RAM areas for RAM functions
exclude board.o from RAM functions and add some comments
use separate linker script for H750
use correct RAM area for process stack on H750/H743
update EXCLUDE items to put __early_init in flash on H730 and H750
optimize H730 ramfunc usage
correct calculation of advanced timers
add support for linker script configuration in mcu config script
use linker script configuration for H750 and H730
add single OTG_HS support on H730 via OTG2
make sure complimentary channels get advanced timers
complemntary timers do not require advanced mode
allow custom clockspeeds of 550Mhz
correct debug pins on H730
support custom clockrate of 520Mhz on H730
correct H730 USB end point pins
restructure linker script for STM32H730
allow chibios_hwdef.py to set advanced timer on L431
don't define RAMFUNC on STM32H730
clock tree for STM32H730
create non-cacheable memory area for SDMMC DMA
don't look for RAM_MAP in bootloader with external flash
convert RCOutput to new virtual timer interface
cope with SDC vs SDMMC
use new SPIv3 driver. Correct clocks for SDMMCv2.
add STM32L431 support
port ChibiOS config to version 8
support SPIv3 driver model v2 on H7
use currcore in debug options
use new mmc API
disable speed optimizations in the bootloader to save a little flash
upgrade to halconf v8.4
relax constraints on QSP/flash clock.
add support for disabling QSPI reset in main firmware
this takes better advantage of the new UART code. Log download over
USB gets to 730 kbyte/s. For comparison, with the 4.0 code on the same
H7 we get about 300 kbyte/s
this gains about 20k of RAM, and has almost no impact on log download
speed at 921600 on a F427. The improved threading means we can afford
to have smaller buffers
this uses the ChibiOS system timer instead of a separate GPT timer for
the core ChibiOS timer. The advantage is it saves us a timer, plus it
changes ChibiOS to use a 1MHz clock on its timer, which gives us
higher resolution for delays.
This has a remarkable effect on timing jitter, reducing it greatly