.redmap Property

Function:	For the selected LED channel (selection is made through the pat.channel property), sets/returns the number of the I/O line that will act as a red LED control line.
Type:	Enum (pl_int_num, byte)
Value Range:	See the list of pl_int_num constants in the platform specifications. Default values: Channel 0: (–1) (no mapping, read-only): the green status LED (control line) of <%C%> device is always used by this channel; Channels 1-4: PL_IO_NULL (non-existent line).
See Also:	pat.greenmap

Details

Channel 0 is special — its LED control lines can't be remapped. This is because channel 0 uses the standard green and red status LEDs (they are called SG and SR). For channel 0, reading the property always returns (–1), and writing has no effect.

All other channels use the regular I/O lines of your Size 3 Linux Tibbo Project PCB (LTPP3), Gen. 2. Any I/O line can be selected to be the red control line of the selected channel. By default, all control lines are mapped to the non-existent PL_IO_NULL line. Remap as needed and don't forget to configure the selected I/O line as an output — this won't happen automatically.