Serial Baud Rates Supported By NI-VISAPrimary Software: Driver Software>>NI-VISAPrimary Software Version: 3.5 Primary Software Fixed Version: N/A Secondary Software: N/A
Problem: Which baud rates are valid when using NI-VISA for serial communication? What are the standard serial baud rates? Solution: NI-VISA itself does not limit the range of baud rates you can use. Instead, the baud rate request passes directly to the device driver for the serial interface. You can set the baud rate in LabVIEW using a VISA Configure Serial Port VI. NI-VISA returns a success if the driver supports the desired baud rate. Most serial devices accept only a predefined set of baud rates. The maximum rate for most standard serial ports is 115200. However, some serial devices, such as the NI PCI/PXI-843x product line, support any arbitrary baud rate below a specified maximum rate. For more specifics on NI Serial Boards and 3rd party serial boards with regards to baud rates please refer to the first 2 links in the related links section. If you use NI-VISA in Linux or Mac OS, you usually are limited to the standard baud rates specified in this document. The standard driver on these operating systems does not support arbitrary baud rates.
Related Links: Product Manuals: NI Serial Hardware Specifications and Features Guide KnowledgeBase 3CPHL3SU: Can I Use Non-Standard Baud Rates Under LabVIEW With 3ed Party Serial Boards? KnowledgeBase 1BEAMPL1: Can VI_ATTR_ASRL_BAUD be Used with a Nonstandard BAUD Rate? KnowledgeBase 3JL6PPFM: Setting Baud Rate in LabVIEW to Match MAX Drivers and Updates: Current Versions of NI-VISA Attachments:
Report Date: 01/27/1999 Last Updated: 12/10/2010 Document ID: Q9K92I |
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