25-pin to USB timer help !

General timing system discussions.
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St_Louis_Racer
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25-pin to USB timer help !

Post by St_Louis_Racer » Tue Jan 06, 2009 10:22 am

I'm in charge of our PWD event this year and am having an issue with interfacing with the timer.

The setup I've tried is to set up a virtual comm port using a USB to 9 pin serial dongle. The Grand Prix software, after installing the driver for the dongle, did recognize it as COM4 . I then added on a 9-pin to 25-pin adapter to attach to the 25-pin timer cable.

I set the Grand Prix software to ready and haven't been able to poll any times.

Anybody have experience with this and/or suggestions ?



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gpraceman
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Re: 25-pin to USB timer help !

Post by gpraceman » Tue Jan 06, 2009 10:29 am

If your system is using a 25 pin connector, it is most likely a parallel port system, not a serial port one. GPRM V7 and above only supports serial port timing systems.

There is no easy way to convert a parallel port system to work on the serial port, without giving it a brain (processor). Parallel port systems are dumb (no brains) where the computer does the timing based on inputs from the sensors. Serial port systems are smart. They contain a processor to do the timing and then transmit the results to the computer.


Randy Lisano
Romans 5:8

Awana Grand Prix and Pinewood Derby racing - Where a child, an adult and a small block of wood combine for a lot of fun and memories.

St_Louis_Racer
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Re: 25-pin to USB timer help !

Post by St_Louis_Racer » Tue Jan 06, 2009 10:54 am

gpraceman wrote:If your system is using a 25 pin connector, it is most likely a parallel port system, not a serial port one. GPRM V7 and above only supports serial port timing systems.

There is no easy way to convert a parallel port system to work on the serial port, without giving it a brain (processor). Parallel port systems are dumb (no brains) where the computer does the timing based on inputs from the sensors. Serial port systems are smart. They contain a processor to do the timing and then transmit the results to the computer.
Thanks for the reply. Have you heard of any easy resolutions to my problem ?



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gpraceman
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Re: 25-pin to USB timer help !

Post by gpraceman » Tue Jan 06, 2009 10:57 am

St_Louis_Racer wrote:Thanks for the reply. Have you heard of any easy resolutions to my problem ?
Check your email.


Randy Lisano
Romans 5:8

Awana Grand Prix and Pinewood Derby racing - Where a child, an adult and a small block of wood combine for a lot of fun and memories.

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