Sending Assisted GNSS (A-GNSS) to Bangle 2 GPS (AT6558)

There's a working bit of code that does a AGPS load written in C for the AT6558 that demonstrates how to send the CASIC commands for AGPS. What we need are the checksum calculation writing and the AGPS Bangle1 app cloning to use the CASIC commands. If a simple bit of javascript can be written that will load 1 set of AGPS data onto the B2 then I am sure someone would be able to do the web wrap. There is a lot of stuff I dont understand in the web wrap for the Bangle1 AGPS App, but I can see how it works from a UBLOX perspective. I was working on the checksum function but got sidetracked with analogue clocks etc :)