GPES203B

© Generalplus Technology Inc.

Proprietary & Confidential

6

JAN. 05, 2009

Version: 1.1

5.3.2. Entry point (Label)

The essence utilized in GPES II program is the ENTRY POINT.

Each trigger pin is assigned an entry point.

Programmers can

also define a label (ID) for an entry point.

A label can be the

combinations of number and character, but not underscore.

In

addition, a label cannot start with a number.

Example

SpeechLoop:

Sound1+Sound2

JP

SpeechLoop

When a pin is triggered, the program jumps to its corresponding

entry point and starts executing.

The entry points are fixed

numbers.

For instance, “0” is the entry point of TG1 when 1

0.

“1” is the entry point of TG2 when 1

0.

Programmers can

either use Entry Point ID or Entry Point Abbreviator to express an

entry point.

A summary of entry point for each trigger pin is as

follows:

Entry Point

Entry Point Abbreviator

Status

32

POI

Power on initialization

0

TG1F

TG1 1

0 (falling)

1

TG2F

TG2 1

0 (falling)

2

TG3F

TG3 1

0 (falling)

3

TG4F

TG4 1

0 (falling)

4

TG1R

TG1 0

1 (rising)

5

TG2R

TG2 0

1 (rising)

6

TG3R

TG3 0

1 (rising)

7

TG4R

TG4 0

1 (rising)

8 - 254

(except 32)

User-Defined entry point

or label

User-Defined

255

Timer event

User-Defined

Example:

An example is introduced here.

Also, all words after semi-colon

(;) are for comments only.

SPES203B

;body defined

EXT_CLK_4M

POI:

LD

EN, 0x00

(4000)_3

LD

EN, 0x 03

;enable TG1 falling and

;TG2 falling

END

TG1F:

Sound1

;when TG1 changes from

;1

0 (High

Low),

;sound1 is played

END

;Sleep

TG2F:

Sound2

;when TG2 changes from

;1

0, sound2 is played

END

;Sleep