PCI Express Board User’s Manual | Serial Programming Tools |
4.Select a COM number for the port from the Port Number
5.Select the Auto Enumerating COM Number option to map subsequent ports automatically. The port numbers will be assigned in sequence. For example, if COM 3 is assigned to Port 1, then COM 4 (if not already occupied) will be assigned to Port 2, etc.
6.Select an Rx FIFO Trigger from the Rx FIFO Level
7.Select a Tx FIFO Level from the Tx FIFO Level
| Tx FIFO | Rx FIFO |
High | 128 | 120 |
Middle | 64 | 60 |
Low | 1 | 1 |
Unit: Bytes
8.Click OK to save the port settings, and then click OK in the Property window to finish the port settings procedure.