UC864 3g module with ARM (gumstix)

Wireless & IoT
1

Hi all,

I’m looking for designing a board with a UC864 3g module. I just doesn’t understand how I should connect it as it has USB 2.0 and an UART connexion.

In all the project that I have found, they are using the UART with te AT command set. Some of them with the USB signals connected and some without. But in all case, the USB doesn’t seems to be used.

I wonder if I can drive the module with USB only. As I will use an arm board with linux, the driver shouldn’t be a problem, right ?

Thanks.

2

Ok, I finally found the well hide and needed pdf : http://www.roundsolutions.com/techdocs/ … e_v1.1.pdf

The answer is yes, I can use only USB. It will enumerate as multiple virtual serial port and will also ask for 25mA on the usb power report :arrow: it will work on a USB on the go (which provide only 100mA).

The driver for this module seems to be included in linux kernel since 2008.