CFA633-RDI-KU datasheet(41/86 Pages) CRYSTAIFONTZ

41 / 86 page

Crystalfontz America, Inc.

Data Sheet Release Date 2012/02/21

www.crystalfontz.com

CFA633-RDI-KU LCD Module (Hardware v2.0 / Firmware u2v1)

February 2012

Page 41

8 (0x08): Set LCD Contents, Line 2

Sets the center 16 characters displayed for the bottom line of LCD screen.

type: 0x8 = 810

valid data_length is 16

data[] = bottom line's display content (must supply 16 bytes)

The return packet will be:

type: 0x40 | 0x08 = 0x48 = 7210

data_length = 0

Set LCD Contents, Line 2 is one of the items stored by the command 4 (0x04): Store Current State As Boot

State (Pg. 37).

9 (0x09): Set LCD Special Character Data

Sets the font definition for one of the special characters (CGRAM).

type: 0x09 = 910

valid data_length is 9

data[0] = index of special character that you would like to modify, 0-7 are valid

data[1-8] = bitmap of the new font for this character

data[1-8]

are the bitmap information for this character. Any value is valid between 0 and 63, the msb is at the left

of the character cell of the row, and the lsb is at the right of the character cell.

data[1]

is at the top of the cell.

data[8]

is at the bottom of the cell.

The return packet will be:

type: 0x40 | 0x09 = 0x49 = 7310

data_length = 0

Set LCD Special Character Data is one of the items stored by the command 4 (0x04): Store Current State As Boot

State (Pg. 37).

10 (0x0A): Read 8 Bytes of LCD Memory

This command will return the contents of the LCD’s DDRAM or CGRAM. This command is intended for debugging.

Note: firmware version prior to v1.9 did not return the address code.

type: 0x0A = 1010

valid data_length is 1

data[0] = address code of desired data

data[0]

is the address code native to the LCD controller:

0x40 (\064) to 0x7F (\127) for CGRAM

0x80 (\128) to 0x93 (\143) for DDRAM, line 1

0xC0 (\192) to 0xD3 (\207) for DDRAM, line 2

NOTE

Please use this command only if you need backwards compatibility with older CFA633 units. For new

applications, please use the more flexible command 31 (0x1F): Send Data to LCD (Pg. 56).

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