Icing,
did some major rework , see the updating of google code r27.
Simple config only commands (e.g. atth etc) are now handled in a standard way (modifyConfig)
AT commands that actually need to do something (e.g. ATCF to change config and CCx settings) follow the standard way and then, as post processing call a function defined in the command table. (setCCxConfig() for ATCF)
Commands that don’t change config (e.g. ATRS), have 0 digits, and therefore only execute the post processing call.
The 915/868 is still a mystery to me.
Over here ATCF0 and ATCF2 works, but ATCF1 and ATCF3 not.
seems like the 1.2 baud is picking up noise in my environment as I can not think of another explanation because it seems to work in your environment.
If you have some time, can you load r27 on your end and see if CF0~3 all work ?
I use threshold value 1 and overflowing that produces no errors.
Could be though that CCx_PACKT_LEN needs to be shortened to 61 as per section 15.3 of the datasheet (CCx_FIFO_SIZE - 3 bytes)
So that if you try to send say 80 bytes at once, it will first send 61 and then the remaining 19.
Cheers,
Hans