Hi again Songbosi, Thanks for the documentation - that GTM900-B module does look interesting. Given that you've got OsmocomBB running on it, you must have already done a fair bit of reverse engineering on this module in order to get that far, so I hope you don't mind if I ask you to share some of your technical findings. Let us start with a few basics:
1) Does this module have the Calypso boot ROM enabled via nIBOOT pin strapping? In other words, is it possible to gain code download access via tools like fc-loadtool or osmocon, or is JTAG the only way? 2) How are various GPIO and RF control signals wired? Which TSPEN signal goes to the Rita transceiver (TSPEN2 like on most Calypso designs, or TSPEN1 like on the Pirelli DP-L10, or other?) and which TSPACT signal controls what? You also wrote on the OsmocomBB mailing list: > I have about 500 pcs left, I could sell them with $15/pcs Your price is very reasonable and I may be interested in a few to play with, but do you have any kind of breakout board for easy experimentation with these modules? M~ _______________________________________________ Community mailing list Community@freecalypso.org https://www.freecalypso.org/mailman/listinfo/community
