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参数资料
| 型号： | XBIB-R |
| 厂商： | Digi International/Maxstream |
| 文件页数： | 50/72页 |
| 文件大小： | 1116K |
| 描述： | BOARD RS232 ZIGBEE MOD PRO |
| 设计资源： | XBIB-R Schematic |
| 标准包装： | 1 |
| 附件类型： | 接口板 |
| 适用于相关产品： | XBee 和 XBee Pro 收音机 |
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XBee/XBeePRO"燨EM燫F燤odules??02.15.4?爒1.xAx燵2007.05.031]
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Chapter??燫F燤odule燙onfiguration
RO (Packetization Timeout) Command
<Serial Interfacing> RO command is used to set
and read the number of character times of inter-
character delay required before transmission.
RF transmission commences when data is
detected in the DI (data in from host) buffer and
RO character times of silence are detected on the
UART receive lines (after receiving at least 1 byte).
RF transmission will also commence after 100 Bytes (maximum packet size) are received in the DI
buffer.
Set the RO parameter to '0' to transmit characters as they arrive instead of buffering them into
one RF packet.
RP (RSSI PWM Timer) Command
<I/O Settings {I/O Line Passing}> The RP com-
mand is used to enable PWM (Pulse Width Modu-
lation) output on the RF module. The output is
calibrated to show the level a received RF signal is
above the sensitivity level of the module. The
PWM pulses vary from 24 to 100%. Zero percent
means PWM output is inactive. One to 24% per-
cent means the received RF signal is at or below the published sensitivity level of the module. The
following table shows levels above sensitivity and PWM values.
The total period of the PWM output is 64 祍. Because there are 445 steps in the PWM output, the
minimum step size is 144 ns.
A non-zero value defines the time that the PWM output will be active with the RSSI value of the
last received RF packet. After the set time when no RF packets are received, the PWM output will
be set low (0 percent PWM) until another RF packet is received. The PWM output will also be set
low at power-up until the first RF packet is received. A parameter value of 0xFF permanently
enables the PWM output and it will always reflect the value of the last received RF packet.
RR (XBee Retries) Command
<Networking {Addressing}> The RR command is
used set/read the maximum number of retries
the module will execute in addition to the 3
retries provided by the 802.15.4 MAC. For each
XBee retry, the 802.15.4 MAC can execute up to 3
retries.
This values does not need to be set on all modules for retries to work. If retries are enabled, the
transmitting module will set a bit in the Maxstream RF Packet header which requests the receiving
module to send an ACK (acknowledgement). If the transmitting module does not receive an ACK
within 200 msec, it will re-send the packet within a random period up to 48 msec. Each XBee retry
can potentially result in the MAC sending the packet 4 times (1 try plus 3 retries). Note that retries
are not attempted for packets that are purged when transmitting with a Cyclic Sleep Coordinator.
PWM燩ercentages
dB above Sensitivity
PWM percentage
(high period / total period)
10
41%
20
58%
30
75%
AT Command: ATRO
Parameter Range:0 - 0xFF
[x character times]
Default Parameter Value: 3
AT Command: ATRP
Parameter Range:0 - 0xFF
[x 100 msec]
Default Parameter Value: 0x28 (40 decimal)
AT Command: ATRR
Parameter Range: 0 - 6
Default: 0
Minimum Firmware Version Required: 1.xA0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XBIB-R-DEV | 功能描述:界面开发工具 RS-232 XBee-PRO pro onal interface board RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XBIB-U | 功能描述:界面开发工具 USB XBee-PRO interf -PRO interface board RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XBIB-U-DEV | 功能描述:界面开发工具 USB XBee-PRO profes onal interface board RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XBIB-U-SP | 功能描述:界面开发工具 USB/Xbee/Xbee-Pro Inf Brd SMT Pads RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XBIB-U-SS | 功能描述:界面开发工具 USB/Xbee/Xbee-Pro Inf Brd SMT Skt RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
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