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Information in this article applies to:

  • C51 All Versions
  • C166 All Versions
  • C251 All Versions


Can I use a parallel to USB port replicator to connect my parallel dongle to an USB port?


If the port replicator produces a memory address (I/O range) and has an assigned DMA range in the device manager, it can be used.

This must be entered into the configuration utility SetupSysDriver.exe, that can be found under:
C:\Program Files\Common Files\Safenet Sentinel\Sentinel System Driver or C:\Program Files(x86)\Common Files\Safenet Sentinel\Sentinel System Driver

Most people require a USB-to-parallel port replicator because they want to connect a parallel port dongle on their laptop which has a USB port rather than a parallel port. In such cases, a possible solution would be to use a PCMCIA to parallel port adapter which must comply to IEEE 1284 standards and is mapped to a memory address (I/O range).

You may also contact your Keil representative and ask for an alternative license protection.


The following Discussion Forum threads may provide information related to this topic.

Last Reviewed: Monday, May 29, 2017

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