收藏本站
21
6.5
Dallas One-Wire
5.1
Search for a
One-Wire Device
Dec
Hex
ASCII
254 200 2
FE C8 02
■
╚
SOT
v5.6
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 15: 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)
5.2
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
v5.6
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 16: 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 17: Dallas One-Wire Errors
Code
Error Description
0
Success
1
Unknown Command
2
No Devices Found
3
Fatal Search Error
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
VK204-25-422 VF CHARACTER DISPLAY 20X4 RS422
VK204-25-VPT VFD ALPHA/NUM DISPLAY 20X4
VLM-532-42-SCA LASER MODULE 532NM 1-5MW DOT
VLM-532-46-LCA LASER MODULE 532NM 1-5MW LINE
VLM-635-14-SPA LASER MODULE 635NM 1-5MW DOT
VLM-635-15-LPA LASER MODULE 635NM 1-5MW DOT
VLM-650-00 LASER MODULE 650NM 1-5MW DOT
VLM-650-07-LPT LASER MODULE 650NM 1-5MW DOT
相关代理商/技术参数
VK204-24-USB 功能描述:真空荧光显示器 - VFD 20x4-24 Ch. USB VFD RoHS:否 制造商:Noritake 产品:Graphic Display Modules 字符计数 x 行: 模块大小 - 宽x高x厚:230 mm x 78 mm x 15 mm 观察区域 - 宽x高:166.25 mm x 41.45 mm 接口: 电压额定值:5 V 工作温度范围:- 40 C to + 85 C 封装:
VK204-25 功能描述:真空荧光显示器 - VFD Vacuum Florescent Blue/Green Text RoHS:否 制造商:Noritake 产品:Graphic Display Modules 字符计数 x 行: 模块大小 - 宽x高x厚:230 mm x 78 mm x 15 mm 观察区域 - 宽x高:166.25 mm x 41.45 mm 接口: 电压额定值:5 V 工作温度范围:- 40 C to + 85 C 封装:
VK204-25-422 功能描述:真空荧光显示器 - VFD 20x4 Grn Txt Blk B/G No Backlight 25 key RoHS:否 制造商:Noritake 产品:Graphic Display Modules 字符计数 x 行: 模块大小 - 宽x高x厚:230 mm x 78 mm x 15 mm 观察区域 - 宽x高:166.25 mm x 41.45 mm 接口: 电压额定值:5 V 工作温度范围:- 40 C to + 85 C 封装:
VK204-25-422-E 功能描述:真空荧光显示器 - VFD 20x4Grn Txt Blk B/G No B/L Ext. Temp RoHS:否 制造商:Noritake 产品:Graphic Display Modules 字符计数 x 行: 模块大小 - 宽x高x厚:230 mm x 78 mm x 15 mm 观察区域 - 宽x高:166.25 mm x 41.45 mm 接口: 电压额定值:5 V 工作温度范围:- 40 C to + 85 C 封装:
VK204-25-422-V 功能描述:真空荧光显示器 - VFD 20x4 Grn Txt Blk B/G No B/L Ext. Volt RoHS:否 制造商:Noritake 产品:Graphic Display Modules 字符计数 x 行: 模块大小 - 宽x高x厚:230 mm x 78 mm x 15 mm 观察区域 - 宽x高:166.25 mm x 41.45 mm 接口: 电压额定值:5 V 工作温度范围:- 40 C to + 85 C 封装:
VK204-25-422-VPT 功能描述:真空荧光显示器 - VFD 20x4 Grn Txt Blk B/G No B/L Volt Reg RoHS:否 制造商:Noritake 产品:Graphic Display Modules 字符计数 x 行: 模块大小 - 宽x高x厚:230 mm x 78 mm x 15 mm 观察区域 - 宽x高:166.25 mm x 41.45 mm 接口: 电压额定值:5 V 工作温度范围:- 40 C to + 85 C 封装:
VK204-25-422-VPT-E 制造商:Matrix Orbital 功能描述:20x4 VFD,RS422,25key Wide Volt, Ext Temp
VK204-25-E 功能描述:真空荧光显示器 - VFD 20X4 DISPLAY RoHS:否 制造商:Noritake 产品:Graphic Display Modules 字符计数 x 行: 模块大小 - 宽x高x厚:230 mm x 78 mm x 15 mm 观察区域 - 宽x高:166.25 mm x 41.45 mm 接口: 电压额定值:5 V 工作温度范围:- 40 C to + 85 C 封装: