USB-Serial converter type host

Alejandroj · Joined: 27 Feb 2014 Posts: 2

Hi,

I have a modem that has several features, when I connect it to my PC starts to enumerate the USB ports and create THREE (03) virtual com (COM5, COM6 and COM7) using the hyperterminal I can to connect to COM5 I and interact with the modem , I need to do the same but using a PIC, I have understood that I have to use a PIC that supports OTG, but searching the forum did not find anything of this type of applications.

Could someone recommend a module that can do the same, I need a module that act as a HOST that allows to enumerate USB modem ports and also provided a UART for Interactual with COM5, so you can use any PIC range 18 to my development.

In short I need a USB-Serial converter type host, there is this?

temtronic · Posted: Thu Feb 27, 2014 8:39 am

Have a look at the 'Vinculum' based modules VNC2 made by FTDI. You can buy a module for about $25 from supplier like Digikey.You can easily wire up to a PIC. If you get the 2 port version, one port can be Host, the other a slave.
There are OTG PICs as well though I've never used them and only 'played' with the V2 device for a couple of months using an 1846k22 as the 'brains'.

Alejandroj · Joined: 27 Feb 2014 Posts: 2

Hi temtronic,

In addition the VNC2 what other things (programmer, cable, compiler, etc) I need to start my development with the VNC2

temtronic · Posted: Thu Feb 27, 2014 9:46 am

You'll need the 'programmer' module. Have a look at the FTDI website, I ordered my units from Digikey(same price, <18hr delivery).
PM me if you need part numbers, etc. as this is a bit 'off topic' until you start cutting C code....

Jay