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| 型号： | ATREB232ED-EK |
| 厂商： | Atmel |
| 文件页数： | 4/40页 |
| 文件大小： | 0K |
| 描述： | AT86RF232 EVAL KIT |
| 产品培训模块： | AT86RF232 Low Power 2.4 GHz Wireless Transceiver |
| 标准包装： | 1 |
| 类型： | 收发器，微控制器 |
| 频率： | 2.4GHz |
| 适用于相关产品： | AT86RF232 |
| 已供物品： | 4 块板，电池，电缆，文档 |
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4 Functional description
The block diagram of the REB232ED radio extender board is shown in Figure 4-1 .
The power supply pins and all digital I/Os of the radio transceiver are routed to the 2 x
20-pin expansion connector to interface to a power supply and a microcontroller.
The Atmel AT86RF232 antenna diversity (AD) feature supports the control of two
antennas (ANT0/ANT1). A digital control pin (DIG1) is used to control an external RF
switch selecting one of the two antennas. During the RX listening period, the radio
transceiver switches between the two antennas autonomously, without the need for
microcontroller interaction, if the AD algorithm is enabled. Once an IEEE 802.15.4
synchronization header is detected, an antenna providing sufficient signal quality is
selected to receive the remaining frame. This ensures reliability and robustness,
especially in harsh environments with strong multipath fading effects.
Board-specific information such as board identifier, the node MAC address, and
production calibration values are stored in an ID EEPROM. The SPI bus of the
EEPROM is shared with the radio transceiver’s interface.
Figure 4-1. REB232ED block diagram.
ANT0
TP6
TP7
DIG3
DIG4
VDD
VSS
JP1
Protection
RSTN
50Ohm
RFP
RFN
DIG2
IRQ
SLPTR
CLKM
ANT1
DIG1
4
SPI
ID
EEPROM
XTAL
4.1 Interface connector specification
The REB is equipped with a 2 x 20-pin, 100mil expansion connector. The pin
assignment enables a direct interface to the REB-CBB [2] . Further, the interface
connects to the Atmel STK ? 500/501 microcontroller development platform to enable
support for various Atmel 8-bit AVR ? microcontrollers.
The REB is preconfigured to interface to an STK501 with an Atmel ATmega1281.
If an Atmel ATmega644 is used as the microcontroller, the 0 ? resistors R10 through
R18 must be removed and re-installed on the board manually as resistors R20
through R28 (see exhibit Appendix A ).
Other microcontroller development platforms need to be interfaced using a special
adapter board.
4
Atmel AVR2092
8427A-AVR-10/11
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| ATREB233SMAD-EK | 功能描述:射频开发工具 AT86RF233 evaluation kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| ATREB233-XPRO | 功能描述:XPLAINED PRO EXT REB233 制造商:atmel 系列:Xplained Pro 零件状态:有效 类型:收发器 频率:2.4GHz 配套使用产品/相关产品:AT86RF233 所含物品:板 标准包装:1 |
| ATRF231USB-RD | 制造商:Atmel Corporation 功能描述:AT86RF231 AND CORTEXM3 USB STICK - Boxed Product (Development Kits) 制造商:Atmel Corporation 功能描述:AT86RF231 and CortexM3 USB stick |
| ATRF4CE-EK | 功能描述:开发板和工具包 - 无线 RF4CE evaluation kit RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:AT32UC3L 核心:AVR32 频率: 接口类型:USB 工作电源电压:5 V |
| ATRJ8-FSSR | 制造商:Amphenol Sine Systems 功能描述:RJ PLUG, FIELD SLD STRN RELIEF |
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