I am very very new in wavecom devices an I am trying to use Q2686 GPIOs to work as an USB BUS sniffer. From one side of USB connection there is PC and from the other side there is USB HID device(keyboard, barcode reader). Between these two devices I want to plug in device with q2686 on board to sniff data which flow through the bus. Did anyone try this?
My idea is to plug in parallel with lines D+ and D- via 74HC244 or 74LVC244 chips. Then plug in these lines to one of the GPIOs and read data flow.
As far as I noticed q2686 is able to take max. 3.2 [V] on GPIO so it’s mean that I have to lower the voltage taken from the D+ (max 3.6 [V]).
I am using Development Kit with Q2686 device.
Do You think that I can handle this job with q2686?