Use 2 uart | Telit Cinterion IoT Developer Community
February 27, 2017 - 9:56am, 2398 views
I have a "DSB-mini" with a "DSB multi adapter a4" and "EHS 8", at this moment I use asc0 to debug my program, in this point all ok. Now, I need to connect the second uart (ASC1) with a board development kit, the problem is that the second board hasn´t rs232 conector, the uart is by pins.
My question is if is there some way to use the pins rx, tx of the DSB-mini to connect with the other board or if this is imposible, how can I do it and configure it to establish a connection between boht boards using the second uart (I have read the tutorial of UART/Serial interface).
You can always cut the cable or find some special one that have the pins on one side. There are ASC1 pins available on the multi adapter and you could solder to them probably but there are additional level shifters on the DSB which wouldn't be used then. So it's possible then voltage levels would not match then and you'd have to use additional converters.
I read that port USB can use as serial interface to. This port ("USB") is only to debug or could I use as a normal uart and connect it with the other board?
You can use USB to connect with USB hosts. For example you can connect the module to PC and send AT commands to the module over USB.