HP Retail Integrated 2x20 Display Programming Guide

3.1.10 Command Mode

Command Hex Function Description

HT 09 Move cursor right (only valid in overwrite mode)

BS 08 Move cursor left (only valid in overwrite mode)

CR 0D Move cursor to the left-most position (only valid in overwrite mode)

ESC @ 1B 40

Initialize customer display to initial state, clears display buffer, set

display mode to shift and sets current display row to upper row

ESC U 1B 55 Select upper row as current row (initial default)

ESC D 1B 44 Select lower row as current row

ESC A n 1B 41 n

Sets customer display disable or enable

n=D, Disable ; n=E, Enable

ESC C r c 1B 43 r c

Move cursor to specified position (only valid in overwrite mode)

r = U, upper row ;

r = D, lower row

1 ≦ c ≦ 20 (column number)

ESC E r n 1B 45 r n Set special effect or display mode of specified row

ESC R n 1B 52 n Set international font sets

ESC = n 1B 3D n

Select peripheral

n=1, printer ; n=2, display ; n=3, printer an display

(REMARK)*Using commands “ESC E r n”, the value (Hex) of parameter

r 58h=all rows n special function, the value is one of

55h=upper row 30h=shift mode (default display mode)

44h=lower row 31h=rotation mode

32h=blink mode (only all rows)

33h=clear this row and switch to shift mode

34h=overwrite mode

35h=vertical mode