NCR 5972 用户手册
Chapter 4: Programming Set Up 4-13
Brightness Adjustment
Format: 1B 17 nn
Range: 01 ≤ nn ≤ 05
Range: 01 ≤ nn ≤ 05
Description: Adjusts the brightness of the entire display.
Individual characters or display positions are not adjusted. On
power up, the default brightness setting is 5 (100%).
Individual characters or display positions are not adjusted. On
power up, the default brightness setting is 5 (100%).
Nn Brightness
01
20%
02
40%
03
60%
04
80%
05
100%
Note:
This command is not supported by the LCD. The only
action taken is to take the display out of Screen Save.
Read Display ID Byte
Format:
1B 18
Returns: 0x8A
Description: This command is a request for the Retail Display to
return an identifier. The Retail Display returns one byte (0x8A) that
identifies the Retail Display as a 2x20 with 7x9 dot matrix.
Description: This command is a request for the Retail Display to
return an identifier. The Retail Display returns one byte (0x8A) that
identifies the Retail Display as a 2x20 with 7x9 dot matrix.