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© Copyright Brainboxes Limited 2010 Page 27 of 47
To view the settings of a port, select it and click on settings, and then click on the resources tab:
3.3.1. Advanced port settings.
When the Advanced button of the Port Settings is selected the following dialogue is displayed.
FIFO settings:
• Use FIFO buffers – turns the selected ports FIFO buffer on or off. It is strongly recommended that
the FIFO for both ports is left enabled.
• 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.