EM1401EVM Baudrate Change

Niki Harrison

I am following the instructions below to set up the EM1401EVM. I have administrative abilities on the computer, but I still cannot change the baudrate to the required 500 Kbps. I have had IT change the administrative settings, but when I use the prompt below the says it cannot make the change. Is there any other way to set up and run the device.

To set the baudrate required for operation at 500Kbps you must call the script "regmodify.vbs" with the desired COM port at the Windows command prompt, in the path of the driver files (USB-CAN\Driver) like this:
"cscript regmodify.vbs COM15"

over 8 years ago

0 Stephen Holland over 8 years ago

TI__Intellectual 2795 points

If the message you are seeing is "You have not enough rights - Administrator?", then you need to open the command prompt with administrator rights. This is done by right clicking on the shortcut to command prompt, then selecting Run As Administrator. You can also try editing the registry manually to make the required changes. You can view the script in notepad to see what values are changed.

The virtual COMM port needs to have this registry change to be able to operate at 500kpbs.

0 Niki Harrison over 8 years ago in reply to Stephen Holland

Prodigy 110 points

I have run it as an administrator and tried to manually change the registry, but I still get the same "admistrator?" response.

0 Stephen Holland over 8 years ago in reply to Niki Harrison

TI__Intellectual 2795 points

You may not have administrative rights in your user account. Unfortunately, the VSCom CAN adapter requires registry modification of the FTDI virtual comm port drivers to support non-PC specific baud rates like 500kbps.

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EM1401EVM Baudrate Change