Document Number: 37011

Revision 21-Dec-00

www.vishay.com

24

APD-128G064C

Vishay Dale

COMMAND SET, GRAPHIC MODE (SOFTWARE INSTRUCTIONS)

CURSOR LOCATION - All cursor locations are based upon Pixel location - NOT - character column and row locations. The

upper left hand corner is 000,000 (X, Y) while the lower right hand corner is 127, 063 (X, Y). The cursor auto-increments

based upon the character font size by the width of the font. The cursor is not visible in graphic logic.

WRITE LOGIC - Within most commands, the WRITE LOGIC byte must be included:

0 = SET PIXELS (turn-on foreground pixels)

1 = XOR PIXELS (invert foreground pixels)

2 = RESET PIXELS (turn-off foreground pixels)

3 = OVERWRITE (turn-on foreground and turn-off back ground pixels, image write and graphic text commands only)

4 = REVERSE VIDEO OVERWRITE (turn-off foreground and turn-on background pixels, image write and graphic

text commands only)

FONT SIZE

The FONT SIZE must be written before text is written. There are three standard fonts included in the graphics mode:

1 = FONT 1, a 4 x 5 character in a 5 x 6 block

2 = FONT 2, a 5 x 7 character in a 6 x 8 block

3 = FONT 3, a 10 x 14 character in a 12 x 16 block

Refer to character set tables for supported characters and fonts.

NOTE: The LOGIC byte and FONT byte are sent in ASCII format.

DATA FORMAT

All addresses must be sent in ASCII format. Column and row positions begin at the upper left hand corner at address

000,000 (X, Y). A pixel address consists of a column address followed by row address. Addresses are sent to the panel as

a three character ASCII sequence for column (x) followed by a three character ASCII sequence for row (y). An example is

the upper left hand pixel is 000,000 while the lower right hand corner is 127,063.

NOTE: Spaces are shown in the graphic sequences only for clarity and must not occur in the actual commands transmitted

to the panel.

GRAPHIC FUNCTIONS

GRAPHIC FUNCTIONS

CLEAR SCREEN: This command will clear the graphic screen to all pixels off (logic 0).

ESC C

TEXT WRITE: Logic byte (l), font byte (f), x, y starting address, ASCII text. Wrap around will occur.

ESC B l f xxx yyy aaaa..aaaa ESC \

SET PIXEL COMMAND: Logic byte (l), x, y pixel address, end of data delimiter.

ESC D l xxx yyy ESC \

(Single pixel)

ESC D l xxx yyy xxx yyy .......ESC \

(Continous)

SET GRAPHICS MODE:

ESC G

DRAW ELLIPSE: Logic byte, major axis intercept offset, minor axis intercept offset (axis's intercept offset is measured in

pixels from the center point), x, y center point, from angle theta (t), in degrees, to phi (p). A complete rotation would be from

001 to 360.

ESC H l mmm www xxx yyy ttt ppp

WRITE GRAPHIC IMAGE: Logic byte 1, y1 (upper left hand corner), 2, y2 (width and height), data.

ESC I l xxx yyy xxx yyy ddd ....

X1 start coordinate and X2 width must both be multiples of 8. The number of data bytes transmitted must be equal to (X2

width / 8)* Y2 height. The first data byte transmitted will map into the 8 pixels on the top line in the upper left hand corner of

the image with the least significant bit at the left and the most significant bit at the right. Successive bytes will write to the

next byte to the right. When all bytes are written for this line, the next byte will map into the left most byte of the next line

down.

Graphical representation of each data byte:

lsb x x x x x x msb

HEX

CODE

1B, 42

1B, 43

1B, 44

1B, 46

SET TEXT MODE:

ESC F

1B, 47

1B, 48

1B, 49