pcd8544_internal.h

Internal definitions for PCD8544 displays.

RESET_DELAY

Delay for resetting the device.

(5000)  /* keep reset low for 5ms */

MODE_CMD

we are sending a command

(0)

MODE_DTA

we are sending some data

(1)

CONTRAST_MAX

maximum possible contrast value

(127U)

TEMP_MAX

maximum possible temp coefficient

(3U)

BIAS_MAX

maximum possible bias value

(7U)

CMD_DISABLE

set LCD into power down mode

(0x24)

CMD_ENABLE_H

ON using horizontal addressing.

(0x20)

CMD_ENABLE_V

ON using vertical addressing.

(0x22)

CMD_EXTENDED

enter extended instruction set mode

(0x21)

CMD_MODE_BLANK

display nothing

(0x08)

CMD_MODE_NORMAL

display memory content

(0x0c)

CMD_MODE_ALLON

display ‘black’ screen

(0x09)

CMD_MODE_INVERSE

display inverted memory content

(0x0d)

CMD_SET_Y

set 3-bit y address, OR with Y value

(0x40)

CMD_SET_X

set 7-bit x address, OR with X value

(0x80)

CMD_EXT_TEMP

select temperature coefficient

(0x04)

CMD_EXT_BIAS

select BIAS value

(0x10)

CMD_EXT_CONTRAST

set contrast, OR with [0 - 127]

(0x80)