usb to serial CEFC drivers

stu24539334

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Hi guys a wee bit of a dilemma, all kryptview where flashing ok now all of a sudden on windows 7
it has a driver problem, to witch i have hunted high and low its a cefc usb to serial, usb port 3,cant open serial portCom3 please check if the port has the following parametres baudrate 115200bps parity no parity databyte 8bit/data stop bit 1 i know its a driver problem but cant find it on any site
thanks guys if anyone can help
 

Spectre

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Does the post appear under Device Manager? As it is a USB to RS232 Windows will make a virtual com port.

Maybe something else has the port.

Download Process Explorer and search for "Serial" under Handles to see if something is using it.
 
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