Try to have sensible setup/hold times by evenntually duplicated or
logically useless port commands.
Loading code to RAM on a STM32L476 got up from 46 to 83 kB/sec.
With 128 bytes for both usb_uart buffers, traceswo gives errors!
Keep the size for the receive buffer and diminisch the transmit buffer,
as there is no flow control to the device.
Probably related to https://github.com/libopencm3/libopencm3/issues/477
This adds a new function to the internal target interface
to allow the target to get control before reset is complete
so that it can do any additional work. On this target there
is a proprietary internal bit that has to be reset in some
cases to allow the core to continue operating.
All source files include general.h first and before anything else.
This inlcludes platform.h and platform_support.h
No header file needs to include to include any of these, but should include
any others needed for it's own declarations.
