M2021a

40gbe changes so skarab 40gbe (hopefully) works alongside other 40gbe…

40gbe changes so skarab 40gbe (hopefully) works alongside other 40gbes. Tested on a skarab and works

Updating the gpio driving the au50 cattrip pin

This should have been driving the pin low and not high.

Still need to investigate why the SARAO au50s work with this set to 1.

Au50

Removing the incorrect PATH to MODEL_COMPOSER_PATH rather than
COMPOSER_PATH

Removing the numpy version requirement from requirements.txt

Removing the importIPython from bram.py

Documentation updates

removed bus_expand_callback

The bahaviour of mask callbacks seems to have changed in Simulink.

When setting up an fft_wideband_real, the first change of parameters
succeeded but sebsequent changes caused an error while the init
scripts ran.

The mask callback on some parameters in the bus_expand block
caused a cascade of calls to itself, as well as bus_expand_init that
resulted in an erroneous error.

The solution has been to remove the mask callback. This means that
the mask does not change depending on parameter changes as before
but this does not change operation, it was a nicety for the user.

bd snap microblaze update