参数资料
型号: DD-DB1-AV204A
厂商: Matrix Orbital
文件页数: 24/47页
文件大小: 0K
描述: DEVDEVIL DEV BRD ALPHA 20X4
产品变化通告: 12C Displays Change 11/Oct/2011
标准包装: 1
系列: Dev Devil
主要目的: 显示器,VFD
嵌入式: 是,ASIC
已用 IC / 零件: AL204A
主要属性: 20 x 4 显示器,黄/绿文本灰色背景
次要属性: GUI,迷你型 USB
已供物品: 板,线缆
3.3.Load Custom Dec
Characters Hex
254 192 Bank
FE C0 Bank
Loads a bank of custom characters into memory for use. Must be issued before using a bank of characters. Alternatively,
an appropriate initialize command can be used.
Bank 1 byte, memory bank ID (0-4)
3.4.Save Startup Screen Dec
Custom Characters Hex
254 194 ID Data
FE C2 ID Data
Saves a custom character to memory for the start up screen or repeated use. Start up characters are displayed by
sending their ID to the screen.
ID
1 byte, character ID (0-7)
Data 8 bytes, character pixel data, see custom character example
3.5.Initialize Medium Dec
Numbers Hex
ASCII
254 109
FE 6D
■ m
Loads the medium number custom character bank into memory. Medium numbers must be initialized before use.
3.6.Place Medium Dec
Numbers Hex
ASCII
254 111 Row Column Digit
FE 6F Row Column Digit
■ o Row Column Digit
Places a single medium decimal digit of 2 row height and 1 column width on the display at the position specified.
Medium numbers must be initialized before being placed.
Row
1 byte, value between 1 and 20
Column 1 byte, value between 1 and 2 for 20x2 screen or 1 and 4 for 20x4 screen
Digit
1 byte, single decimal digit to display
22
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