Innotech Systems SpitFIRE II User Manual

Page 16

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SpitFIRE

Innotech Systems Inc.

Page 16

If the user presses any other key during the 2.5-

second interval, the SpitFIRE will cancel

AutoSearch mode and the original programmed

device will remain. The SpitFIRE will return a

status message with a flash count of 0 (status byte

0xA0) to indicate that it did not accept any new

programming. The SpitFIRE will also stop

searching and return a 0 flash after it has traversed

the entire library.

During AutoSearch, the SpitFIRE will alternately

return a status code 0xF9 (AutoSearch status +

transmitting IR bit) at the start of each IR burst,

and 0xB9 (AutoSearch status + NOT transmitting

IR bit) at the end of the burst. NOTE: The MSB

of the status byte can be either 1 (key pressed) or

0 (key not pressed) depending on the last scan

code received.

The status bytes returned during AutoSearch

mode are the only exception to the rule that every

scan code returns one and only one status byte.

This exception enables the controlling program

can better track the progress of the search.

To review: After the user enters

SOURCEx - PROGRAM - AUTOSEARCH

the SpitFIRE will immediately return an

AutoSearch status & IR transmitting (0xF9)

status, followed briefly by AutoSearch status

(0xB9) status, followed by the 2.5 second guard

delay. It will then repeat this sequence until one

of the following occurs…

The user sends PROGRAM to accept the current

code (returns 3 flashes).

The user presses any other button to cancel

AutoSearch mode (returns 0 flashes).

AutoSearch cancels itself after running through all

its codes (returns 0 flashes).

In the case of SOURCE1, SOURCE2, or

SOURCE3, it will take about 6 minutes to go

through the selected portion of the library. In the

case of SOURCE4 (where the SpitFIRE transmits

all codes), it will take about 18 minutes to traverse

the entire library.

The programming sequence to AutoSearch for the

code for source #1 is:

Button

Function

Scancode

Status

Returned

Source1 press C1 (41 with

MSB set)

1 flash

Program press C0

2 flashes

Auto press

D9

1 flash

The remote control will now search through
the library for the target device code in 3
second intervals. Every 3 seconds the user
will be prompted by the light flashing and the
remote will attempt to turn the power off.
When the device turns off, immediately issue:

program press C0

3 flashes

The code will be saved. The user should check

the other buttons to ensure they all work with

the target device. If they do not, repeat the

preceding auto search steps.

To stop Auto Search, issue any key code except

AUTO.

After the SpitFIRE is programmed using

AutoSearch, you will not know the library code

number programmed. See Device Code Read-

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