Manuali utente per AeroComm Corporation 44249AJ

Sommario

• OVERVIEW

  6
• AC4424 SPECIFICATIONS

  8
• SPECIFICATIONS

  10
• INTERFACE SIGNAL DEFINITIONS

  10
• ELECTRICAL SPECIFICATIONS

  11
• SYSTEM TIMING

  11
• Serial Interface Data Rate

  12
• Timing Diagrams

  13
• Maximum Overall System Throughput

  15
• CONFIGURING THE AC4424

  15
• EEPROM PARAMETERS

  15
• CONFIGURING THE AC4424

  19
• COMMAND REFERENCE

  20
• AC4424 AT COMMANDS

  21
• Enter AT Command Mode

  21
• Exit AT Command Mode

  21
• ON-THE-FLY CONTROL COMMANDS (CC COMMAND MODE)

  22
• Status Request

  22
• Change Channel with Forced Acquisition Sync

  23
• Server/Client

  23
• Sync Channel

  24
• Power-Down

  25
• Power-Down Wake-Up

  25
• Broadcast Mode

  25
• Write Destination Address

  26
• Read Destination Address

  26
• EEPROM Byte Read

  26
• EEPROM Byte Write

  27
• Reset

  27
• THEORY OF OPERATION

  28
• HARDWARE INTERFACE

  28
• TXD (Transmit Data) and RXD (Receive Data) (pins 2 and 3 respectively)

  28
• Hop Frame (pin 6)

  28
• CTS Handshaking (pin 7)

  28
• RTS Handshaking (pin 8)

  28
• 9600 Baud/Packet Frame (pin 12)

  29
• RSSI (pin 13)

  29
• Wr_ENA(EEPROM Write Enable) (pin 14)

  30
• UP_RESET (pin 15)

  31
• Command/Data (pin 17)

  31
• In Range (pin 20)

  31
• SOFTWARE PARAMETERS

  32
• RF Architecture (Server-Client/Peer-to-Peer)

  32
• RF Mode

  32
• Random Back Off

  33
• Duplex Mode

  33
• Interface Timeout/RF Packet Size

  34
• Serial Interface Baud Rate

  34
• Network Topology

  35
• Auto Config

  36
• DIMENSIONS

  37
• ORDERING INFORMATION

  39
• PRODUCT PART NUMBERS

  39
• DEVELOPER KIT PART NUMBERS

  39
• REGULATORY INFORMATION

  40
• FCC

  40
• CE

  42
• APPROVED ANTENNA LIST

  43
• Figure 1 - RSSI Voltage vs. Received Signal Strength

  30
• Figure 2 – AC4424 with MMCX

  37
• Figure 3 – AC4424 with Integral Antenna

  38
• Table 1 – Pin Definitions

  10
• Table 2 – DC Input Voltage Characteristics

  11
• Table 3 – DC Output Voltage Characteristics

  11
• Table 4 – Timing Parameters

  15
• Table 5 – Maximum Overall System Throughputs

  15
• Table 6 – EEPROM Parameters

  16
• Table 7 – RSSI Board Rev History

  30
• Table 9 – Baud Rate

  34
• Table 10 – US and International RF Channel Number Settings

  35
• Table 11 – Auto Config Parameters

  36