In the Cygwin environment the native Windows serial COM# ports get mapped
to /dev/ttyS# for POSIX compatibility. While # is one number lower inside
the environment than the COM port number because it's 0 indexed instead
of 1.
I added the necessary handling to all the dependent parts I found which
allows uploading to /dev/ttyS# when the cygwin platform is detected.
Now the usual "make px4fmu-v4 upload" and
"./Tools/upload.sh build/px4fmu-v4_default/px4fmu-v4_default.px4" work.
- Move check to proper location, out of the try catch block for OTP.
- Add Pixhawk specific check to notify users that want to flash
px4fmu-v3_default on Pixhawks with older v4 bootloaders that do not
support the silicon errata check.
This fixes the error below when using Python3:
File "Tools/px_uploader.py", line 128, in
__init__
self.image.append('\xff')
TypeError: an integer is required
The goal is to force developers to use the correct target with the correct flash size. This prevents criticial functionality missing and is in particular important for FMUv2/FMUv3 boards. It is unmaintainable otherwise for the Pixhawk series.
In order to use px_uploader as a module from another Python script, all
the action needs to be moved into a main() function which is only called
if the file is run directly.
Sometimes right after reboot, we got a `raise SerialException(
msg.errno, "could not open port {}: {}".format(self._port, msg))`.
If this happens now, we will just try again later.
We may need to change the baud rate from one version to the other.
Allowing the script to try multiple baud rates makes the transition a
little bit less painful.
This also fixes a bug in which it would go the next port before trying
to identify the board after asking it to reboot.
By default the baudrate in flight stack (Mavlink or NSH) 57600 and the default
baudrate of bootloader is 115200. So we may need to set different
baudrates.
The Mavlink reboot messages was only requesting the board to reboot.
If the flashed bootloader has a small or no timeout user will
never be able to update firmware.
