This is driving me nuts. I’ve the 1401123-1 development board + USB cable. On two embedded systems I have OpenSuSE 15.0 (leap) installed. Both will show the three /dev/ttyUSB devices appear when I plug in a card (MC7455). But, it is only on one machine that I can get a response from the AT command. It echos the input (via minicom) and does print OK. The other machine the MC7455 completely ignores the AT command (no response).
Other than the software load, both platforms are identical, these are mass-produced systems.
As a side note, of 6 computers & embedded systems, only one is able to communicate with the MC7455 card installed on the dev board. All see /dev/ttyUSB[0-2], but only one gets the OK.
Is there a manual or something that I can read? Website appears to be completely barren of developer info, lots of Sales info though…
Thanks in advance