Brainboxes CC-310 Manuál stáhnout pdf (Strana 30)

Software Configuration PCI VELOCITY / OPTO ISO RS422/485

Chapter 3 Page 20

• Clicking on the Serial Solutions tab will display:

Settings available in this window are:

1. FIFO Settings.

• Enable FIFO - turns the selected ports FIFO buffer

on or off. It is strongly recommended that the FIFO

for both ports is left enabled.

• Extend FIFO - when checked, extends the selected

ports FIFO buffer from 16 to 64 bytes.

• Receive Buffer - These settings allow the selection

of a receiver FIFO trigger setting. Selecting a low

value will allow the interrupt to be serviced quicker,

which is good for slow machines. If you have a fast

machine, setting a high value will give you more

time for multi-tasking operations.

• Transmit Buffer - These settings allow the selection

of a transmitter FIFO trigger setting. Selecting a low

value will send fewer data-bytes per interrupt, and

this is recommended if you are communicating to a

slower machine. Selecting a high value will send

more data-bytes per interrupt, and will give more

time for multi-tasking operations.

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Brainboxes CC-310 Manuál Strana 30