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The update fixes the three issues below and is strongly recommended for all NI-Serial installations. It also adds support for Windows 8 and the NI System Configuration API.
Issues Fixed in the NI-Serial 3.9 Update
| ID | Description |
| 359904 | NI-Serial 3.9 fixes an issue in LabVIEW Real-Time where various errors could be manifested if a serial transfer is in progress when the 32-bit system tick count rolls over, which happens once every 49.7 days. Symptoms included failed serial transfers, FIFO overruns, failure of serial transfers to timeout, and system hangs. |
| 325477 | NI-Serial 3.9 resolves an issue where a system could crash after removing PCI-based hardware from a hibernated system. Depending on the system configuration, the crash could occur immediately upon resume, or at a later time. |
| 317971 | NI-Serial 3.9 resolves an issue which limited the usable baud rate from the .NET SerialPort interface to 131072 baud. This error occurred because NI-Serial improperly reported the maximum baud rate as BAUD_128K (The maximum constant supported by the API) when the port actually supported higher baud rates. This has been changed to report BAUD_USER, indicating that custom baud rates are supported. Other applications querying the maximum baud rate may have been impacted as well. |
The update is available via Update Service, or from the Drivers and Updates links below.
Related Links:
Drivers and Updates: NI-Serial 3.9