tree 9cf0c6a19d2aac86c5ae55414566b59bdea960d4
parent ae895a00ea9e279355d097e337f7d5c5129e99be
author Maureen Helm <maureen.helm@nxp.com> 1505856954 -0500
committer Kumar Gala <kumar.gala@gmail.com> 1507654607 -0500

scripts: Add support for passing daparg argument to pyocd commands

pyocd occasionally throws USB timeout exceptions when running in
VirtualBox, and recently added a command-line option to limit the USB
packet count as a workaround. Introduce an environment variable
PYOCD_DAPARG so Zephyr can pass the argument to pyocd. For example:

$ make BOARD=frdm_k64f PYOCD_DAPARG='limit_packets=True' flash

This workound comes with a performance penalty when flashing and
debugging with pyocd, so it should only be used when running pyocd in
VirtualBox.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>