参数资料
型号: GLK24064-25-V
厂商: Matrix Orbital
文件页数: 37/71页
文件大小: 2634K
描述: LCD GRAPHIC DISPL 240X64 Y/G BK
产品变化通告: Firmware 8.2 Release 08/Apr/2011
标准包装: 1
系列: GLK
显示器类型: LCD - 彩色
显示模式: 可传导的
可视范围: 132.00mm L x 39.00mm W
背光: LED - 黄/绿
点象素: 240 x 64
接口: I²C,RS232,TTL
点尺寸: 0.49mm W x 0.49mm H
点间距: 0.53mm x 0.53mm
Command Summary
37
6.9
Dallas One-Wire
9.1
Search for a
One-Wire Device
Dec
Hex
ASCII
254 200 2
FE C8 02
■╚SOT
v8.0
Sends a search query to each of the up to 32 devices on the one wire bus. Any connected device will respond with
an identification packet.
Response
Bytes [14]
Dallas One-Wire identification packet as shown below.
Table 32: Dallas One-Wire Packet Information
Offset
Length
Value
Description
0
2
9002
Preamble
2
1
138
Another device packet will follow OR
10
Last device packet
3
1
49
Packet Type
4
1
0
Error Code (0 indicates success)
5
8
Device Address
13
1
0
CRC8 address check (0 indicates validity)
9.1
Dallas One-Wire
Transaction
Dec
Hex
ASCII
254 200 1
FE C8 01
■╚STX
Flags Send Bits Receive Bits
Data
Flags Send Bits Receive Bits Data
Flags Send Bits Receive Bits Data
v8.0
Performs a single Dallas 1-Wire transaction. Consult your device documentation for information regarding device
specific protocols. If an error is encountered, a corresponding value will be returned by the device.
Flags
Byte
Flags for transaction, see below.
Send Bits
Byte
Number of bytes to be sent to the device.
Receive Bits
Byte
Number of bytes expected to be received from the device.
Data
Byte(s)
Data to be transmitted LSB to MSB.
Table 33: Dallas One-Wire Flags
Bit
Flag Description
7
6
Unused
5
4
0 (Future Compatibility)
3
Add CRC8 to transaction
2
0 (Future Compatibility)
1
Read CRC8 from transaction
0
Reset Bus prior to transaction
Table 34: Dallas One-Wire Errors
Code
Error Description
0
Success
1
Unknown Command
2
No Devices Found
3
Fatal Search Error
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