I've been using Docklight for the last several years.=A0 You use two COM po= rts on the PC and it allows for setting non-standard baud rates, so it woul= d work with the virtual COM ports as described by James.=A0 It's approximat= ely 49 USD.=A0 In my lab environment I use a HP analyzer, but for the road = found Docklight and a laptop work well so don't have to lug any additional = stuff around. --- On Wed, 2/24/10, James Holland wrote: From: James Holland Subject: Re: [EE] UART Serial Protocol Analyzer To: piclist@mit.edu Date: Wednesday, February 24, 2010, 12:10 PM = > ------------------------------ > = > From: John Coppens > Subject: Re: [EE] UART Serial Protocol Analyzer > Note that any PC-based software analyzer can only use RS232 baudrates > which are divisors of 115200 (230400 in some cases). Even though they may > have a user-baud entry, they can't physically produce every possible > rate. > = > John > = > = The limitation with a PC is usually that the UART can only handle baud rates that are a divisor of a fixed frequency (ie 115200). There is no software limitation on the baud rate with the Windows API although some software (Hyperterminal springs to mind) will only function with standard rates. For an odd baud rate a USB/Serial converter implemented as a virtual com port along with some suitably chosen software is a simple solution. The Equipment referred to in the original post connects to the monitoring PC using a USB link. -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist