Support for receiver configuration (PPM, PWM and DSM)
There are still problems with Flexi port (not sure if related to a problem with my board) and Uart/SBUS that has the input always inverted.
The CC and PipX bootloader updater (BU) builds don't currently
work due to some recent changes in how LEDs are handled.
Remove them from the default BU targets so that the all_flight
target can build clean again.
Also fix a linker warning in OP build.
CPU was being hammered with FIFO empty IRQs if we queued data but
the host wasn't actively draining the FIFO.
This was entirely unexpected so this hack should probably be
removed once we can figure out why this was happening.
This is almost certainly hiding some other issue.
Make sure we don't clobber our endpoint configuration by
double configuring an Rx or Tx buffer against it. Wait for
the completion of the previous operation before allowing
endpoint configuration again.
Upper (COM) layer was calling down into the HID layer before
the HID interface had been enabled. This was leading to
interacting with the endpoint Rx and Tx FIFOs prior to init.
The FIFO config was then being clobbered when we the USB IF
was eventually enabled.
Error flags being set were causing flash erase operations to
fail. Not sure why these flags were set though so this might
be hiding some other problem.
The F4 CPUs have 16KB x 4, 64KB x 1 and 128KB x 7 sectors
of flash. The FW image currently ends in the middle of a
128KB sector. FW_BANK is now increased to end on a sector
boundary.
The code in RCC_GetClocksFreq() uses HSE_VALUE to determine
the tick rate of the SYSCLK. This in turn is used by the
code in PIOS_DELAY_* to compute delays.
ST Library defaults this to 25MHz for the F4. Our board
actually has an 8MHz oscillator so delays were way off.
Mostly affects the bootloaders since most FW code uses RTOS
delays rather than busy-waiting using PIOS_DELAY_*.
HID driver was incorrectly giving back the HID interface
descriptor when asked for the HID descriptor. This should
let OP boards interact better with generic HID layer drivers
and also gives us nicer output in lsusb once the HID descriptor
is read.
