User Manual - AvaLAN Wireless
Contents
1. SPIO uses mode 0 0 for clock phase and polarity This means that the SCKO line idles low and data is setup on the falling edge of the clock and latched on the rising edge SPI1 uses mode 1 1 meaning that SCK1 MISO1 and MOSI1 are all idle high Data is still set up on the falling edge and latched on the rising edge of the clock The clock rate for the SPIO interface is 1 5625 MHz The maximum clock rate for the SPI1 interface is 7 MHz and the minimum clock rate is 530 kHz minimum clock period of 143 ns and a maximum of 1887 ns CS mso o e s e es e oe po wst e e s e es e x e Technical support 650 384 0000 PAGE 7 www avalanwireless com Neeley User s Manual SPIO LEDs and DIP Switches SPIO is a master mode SPI that sends out 4 bytes per transaction The first two bytes are alignment bytes and the last two contain the LED data on MOSIO and the DIP switch data on MISOO The first alignment byte is 0x55 and the second is OxAA These two bytes are used to determine the start of the transaction 0x55 and the start of the data OxAA LEDs CS_LED mso Jo e ores eed mso pos oon ores e sexo N A A bit that is set in either of these bytes indicates that the corresponding LED should be on Byte3 b7 b6 b5 b4 b3 b2 b1 b0 PWR RX_ACT LCH5 LCH4 LCH3 LCH2 LCH1 LCHO PWR Turns on when the firmware is running In troubleshoot mode PWR changes states on t2. Technical support 650 384 0000 PAGE 31 www avalanwireless com Neelys User s Manual 3 The two radios are now configured in ping pong mode and will exchange data back and forth If they are communicating the LEDs will display a common channel the PWR and TX lights should be lit and up to 6 Quality lights will be lit one red LED at the far right for minimal connectivity two reds two yellows two greens for maximum RF signal strength 4 After verifying that the radios are ping ponging at close range move the units into your desired operating configuration and determine if they still have adequate signal quality 3 LEDs or more The signal quality will depend upon a combination of distance interfering objects and their RF density and the antenna chosen If your requirement is for more dis tance or greater penetration consider a high gain directional antenna Logic Analysis Using USB and Windows Utility By connecting the two Evaluation Boards to a PC or pair of PCs and loading appropri ate software the two radios can be programmed and the digital performance and timing can be analyzed Note that the Evaluation Board environment is UART and if you desire a demonstration of SPI logic behavior before constructing your own host microcontroller environment consider evaluating an AW900MTR Ethernet radio module You may examine the logic signal timing in UART mode by attaching a logic analyzer to the labelled probe points
3. it will boot up in SPI mode Technical support 650 384 0000 PAGE 5 www avalanwireless com Nku User s Manual Module Physical Interface RF Antenna RF Section RPSMA N AvaLAN XC1220 Chip Pin 1 Module SPI Interfaces Serial Peripheral Interface SPI is a full duplex synchronus serial interface that al lows data to be shifted in and out of the AvaLAN Baseband Processor XC1220 8 bits at a time most significant bit first Each SPI requires 4 pins to be physically connected e SCK Serial bit shift clock provided by master SPI e MISO Master In Slave Out e MOSI Master Out Slave In e CS Active low Chip Select There are two SPI interfaces on the AW900mSPI The first is a master SPI SPIO operating LEDs and DIP switches SPIO s connections are pins 3 6 The second is a slave SPI SPI1 for management of the radio link statistics firmware upgrading and data transfers SPI1 s connections are on pins 12 15 Technical support 650 384 0000 PAGE 6 www avalanwireless com User s Manual BAN ATele i ns 2 Here are the Signal definitions for the AW900SPI in SPI mode Pin Number Name Description o O e waste Date ovt for LEDs ond DIP owitoes SCS e Error Flag t last command not understood Clear with CS BB o Data Ready Isdata packet available cno data CS 10 FIFO Full Flag 1 FIFO full don t send any more data O FIFO is empty te Reece 5 3 vde for RF section S O
4. na ST ai e A iim Ia li AW900mSPI and AW900mSPI EVAL USER S MANUAL 900 MHz Digital Radio Transceiver Module and Evaluation Kit With SPI or UART Data Interface S Sy Industrial grade long range wireless Ethernet systems AvaLAN RE LE S S wil Nena User s Manual Thank you for your purchase of the AW900mSPI 900 MHz Digital Radio Transceiver Module with SPI or UART Data Interface The Module itself may be ordered in quantities of ten as the AW900mSPI 10 The AW900mSPI EVAL Evaluation Kit includes e 2 Evaluation controller PC Boards with AW900mSPI Radio Modules mounted on them e 2 120 VAC to 12 VDC power adapters and 1 Battery Pack e 2 USB Cables e 2 Omni directional antennas with 8 RPSMA to RPTNC RF Cables Firmware and software described in this manual may be downloaded from www avalanwireless com downloads htm You can also find a pdf of the latest version of this manual If you have any questions when configuring your AvaLAN system the best place to get answers is to visit www avalanwireless com If more assistance is needed send email to support avalanwireless com To speak to a live technician please call technical support at the number below during normal business hours 2011 by AvaLAN Wireless Systems Inc All rights reserved Revision 01 20 2011 125A Castle Drive Madison AL 35758 Sales 866 533 6216 Technical Support 650 384 0000 Custome
5. the maximum value is 120 PEAK is an 8 bit integer representing the peak power detected at each frequency ANG is an 8 bit integer representing the average power detected at each frequency Both the PEAK and AVG readings are a logarithmic scale with a value of zero cor responding to 100 dBm and a value of 255 corresponding to 15 dBm Power in dBm 100 Sample Value 3 Please be aware that this scale is approximate Linearity is poor above 20 dBm or below 90 dBm XC1220 5 KB Receive FIFO 8 KB Transmit FIFO Host Microcontroller Data Commands The data commands are used to transfer data between the XC1220 and the host microcontroller that is intended for RF transmission Technical support 650 384 0000 PAGE 22 www avalanwireless com User s Manual FALOS 2 The XC1220 s receive FIFO does not have data protection This means that when data is received from the RF the host microcontroller has up to 50ms to remove the data from the FIFO before data corruption occurs The transmit FIFO does utilize data protection If the host microcontroller attempts to send data to the XC1220 while the transmit FIFO is full indicated to the host microcontroller using the FIFO_Full line the data will be discarded Please note that in UART mode there is no FIFO_Full line Because the UART baud rate is much slower than the radio s transmit rate transmit overflow should not occur Dat
6. 2 kBps Evaluation Board The Evaluation Board provides an interface to a PC via USB A driver allows the board to be perceived as two conventional COM ports One of these is connected through a UART to SPI chip to SPIO the command and configuration interface in UART mode The second COM port is logically connected to the UART port on the AW900mSPI and is used to transmit and receive data via the radio Note that the AW900mSPI firmware will run in UART mode only with the USB inter face If you wish to probe the logic signals in SPI mode before creating your own design you will need to obtain an AvaLAN AW900MTR in which the same module is interfaced to an NXP microprocessor via SPI1 with SPIO used just for LEDs and DIP switches Technical Evaluation Process Range Demonstration The simplest test that can be performed using the Evaluation Board is an RF range test This test allows you to verify that the AW900mSPI modules will communicate in your operating environment 1 Choose one of the two Evaluation Units to be an Access Point Set DIP switches 1 and 11 on depressed and the remainder off Connect this unit to 110 VAC using a supplied 110 VAC to 12 VDC adapter Do not connect the USB 2 Configure the other Evaluation Unit as a Subscriber Unit Set its DIP switch 11 to on and the remainder off Do not connect the USB You may use the sup plied battery pack to power this unit if greater mobility is desired or use the 12 VDC adapter
7. 384 0000 PAGE 29 www avalanwireless com Neeley User s Manual Evaluation Board Physical Interface RF Antenna RPSMA Module Interface Probe Points a rA P5 Power Connector k S es e SS hing Pay Power Switch on to left DIP Switches Power Jumper Oo Connect 1 amp 2 1 at left OU for uss through 16 at right Connect 2 amp 3 for P5 lls Note that the power for the USB chips is always provided by the USB port and is not otherwise switched The power for the radio and associated parts is controlled by the power switch and may come from either the USB port or the P5 power connec tor depending on the placement of the power jumper If powered by USB make sure that the port you are using will support attachment of a high power device If in doubt or if you experience functionality issues use the external 12 VDC adapter provided in the EVAL kit The probe points and LEDs are labeled on the board The DIP switch settings oP swichwumber Jor SS CidCCSC d C subscber unit __ accessPont www avalanwireless com PAGE 30 Technical support 650 384 0000 User s Manual FAAOLA 2 Evaluation Board Block Diagram configuration data and statistics Dual Port USB to UART AvaLAN AW900mSPI Chip Diagnostic LEDs TERETERE DOU Configuration DIPs Broadcast data at 115
8. Polarity SMA connectors with the antennas listed in Table 1 below When integrated into OEM products fixed antennas require installation preventing end users from replacing them with non approved antennas Antennas not listed in the tables must be tested to comply with FCC Section 15 203 unique antenna connectors and Section 15 247 emissions FCC Approved Antennas 900 MHz Fixed Base Station and Mobile Applications AvaLAN Modules are pre FCC approved for use in fixed base station and mobile applications When the antenna is mounted at least 20 cm 8 from nearby persons the application is considered a mobile application Portable Applications and SAR Testing When the antenna is mounted closer than 20 cm to nearby persons then the application is considered portable and requires an additional test be performed on the final product This test is called the Specific Absorption Rate SAR testing and measures the emissions from the module and how they affect the person RF Exposure This statement must be included as a CAUTION statement in OEM product manuals WARNING This equipment is approved only for mobile and base station transmitting devices Antenna s used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co located or operating in conjunction with any other antenna or transmitter To fulfill FCC Certification requirements 1 Integrator must ensure re
9. RF Connected True Radio Active True Product Code a Radio Version 3 Radio Fimware Release 68 1 Frequency MHz Boot Configuration Stats amp Spectrum Data Terminal Received stats from target 14 15 16 17 The Stats amp Spectrum Serial Port selection should be the same as that on the previous page By clicking Get Stats the radio s status information will be read from the AW900mSPI and displayed The parameters are self explanatory Until you exchange data as described below the packet counts and sizes may all be zero On the right side of the window you can cause the AW900mSPI to do a spectrum scan as described in the getRSSIReadings command explanation earlier in this manual You can select the frequency step size and number of samples to be averaged at each frequency then execute a single scan with the Get Spectrum Scan button or continuously scan by checking the box Continuous scanning will obviously degrade data transmission performance You should do a spectrum scan with the AP unit Before it scans it shuts off its transmitter and tells any connected SUs to do the same then steps the re ceiver through the band If you do a scan with an SU you will likely see peaks of transmission from the other radios The peak and average received power at each frequency is displayed in loga rithmic graphical form Technical support 650 384 0000
10. The getVersion command is used to determine the firmware version running in the XC1220 getVersion SPI Mode 0x06 UART Mode 0x05 b7 b6 b5 b4 b3 b2 b1 bo Byte 1 RFV3 RFV2 RFV1 RFVO PV3 PV2 PV1 PVO Byte 2 RV7 RV6 RV5 RV4 RV3 RV2 RV1 RVO Byte 3 RV15 RV14 RV13 RV12 RV11 RV10 RV9 RV8 PVO to PV3 is the 4 bit product version number RFVO to RFV3 is the 4 bit radio version number RVO to RV15 is the 16 bit firmware release version number Connected SUs Command The getNumberofConnectedSUs command is used on the AP only if issued on the SU it will return all zeros It returns the current number of SUs that are connected to the RF network 5 bit number CCO to CC4 getNumberofConnectedSUs SPI Mode 0x08 UART Mode 0x07 b7 b6 b5 b4 p5 b2 b1 b0 Byte 1 X X x CC4 CC3 CC2 CC cco RSSI Command The getRSSIReadings command is used to determine if possible interference ex ists in the RF environment The AW900mSPI can perform a spectrum analysis scan stepping through the frequency band and measuring the peak and average power received at each frequency Note When two or more radios are actively linked the AP will tell the SUs to cease transmitting when it goes into spectrum scan mode However when an SU scans it will likely see a peak transmission from another radio The host microcontroller sends the resolution settings to the XC1220 then gets Technic
11. approxi mately 300 ms to restart After restart all previously configured data Public and Private Keys Device ID and type will be lost setReset SPI Mode 0x85 UART Mode 0x84 There are no other bytes required to reset the device The host microcontroller should simply issue the setReset command Firmware Upgrading If an update of the AW900mSPI s firmware becomes desirable a new firmware im age will be supplied by AvaLAN If a USB interface exists such as that used in the EVAL board and recommended for UART applications then the firmware upgrade will be handled by a software utility provided by us If the AW900mSPI is used in SPI mode and you wish to build firmware update into your host microcontroller s code Technical support 650 384 0000 PAGE 24 www avalanwireless com User s Manual FALIO OLS 2 here is how to do it The following information applies to SPI Mode only Once a setFirmwareStart 0x8B command has been issued to the XC1220 all other commands except for setPacket 0x8A and setFirmwareEnd 0x8C become in valid and will cause the Error Flag to assert if they are issued The host microcon troller must deassert the CS_BB line pin 12 and then wait for a minimum of 5 us and the DATA Ready line pin 9 to be asserted before reasserting CS_BB to send the first data block The firmware image is partitioned into data blocks with a payload size of 64 bytes Each block is sent as it s own tra
12. on the Evaluation Board To evaluate AW900mSPI performance you will need one or two PCs that run Windows XP or higher It is possible to plug both Evaluation Boards into one PC but that of course limits the RF range and may cause overloading of the radio s receivers To operate the AW900mSPI Evaluation Board from a PC you will need a free USB connection per board and two critical pieces of software The USB interface is through an FT2232D chip from Future Technology Devices Your PC must have a driver loaded that allows assignment of two virtual COM ports that connect to this chip Plus you will need a software utility from AvaLAN that supports configuration status testing and data exchange 1 Set all DIP switches on the Evaluation Board to off up Connect an AW900mSPI Evaluation Board to a USB port on your PC using the cable supplied micro USB to standard USB Usually your PC will discover the new USB device and automatically load an appropriate driver If this is successful you will see a popup window that indicates that your new USB device is installed and ready for use Make note of the two COM port numbers which should be consecutive 2 Verify that your PC is connected logically to the Evaluation Board by run ning the Windows Device Manager right click on My Computer select Technical support 650 384 0000 PAGE 32 www avalanwireless com User s Manual FAAI OLN ad Properties then Device Manager or run the Co
13. steps 4 to 13 until all firmware blocks have been sent Once all blocks have been sent assert CS_BB and issue setFirmwareEnd Ox8C command and deassert CS_BB While Data Ready flag is set wait Assert CS_BB and issue setReset 0x85 command and deassert CS_BB Technical support 650 384 0000 PAGE 28 www avalanwireless com User s Manual FALO OL 2 Implementation Block Diagrams Suggested SPI User Implementation Diagnostic LEDs Prrrocr a AvaLAN AW900mSPI DIRHAMI Recommended 7 7 but not required Configuration DIPs configuration data and statistics User s SPI 1 Embedded uController banae ee SPI data at 7 Mbps Suggested UART User Implementation configuration data and statistics Single Port USB to UART FR AvaLAN AW900mSPI Chip Diagnostic LEDs Recommended 1 1 8 P 0 0 0 but not required 1 0 0 2 0 0 0 o Configuration DIPs User s Embedded uController i ee ed UART data at 9600 to 115 200 bps Note that if you are using the AW900mSPI in UART mode you may wish to include a USB interface to SPIO similar to that implemented in the Evaluation Board This would allow you to modify the configuration to read back operating statistics and to perform spectrum analysis If those capabilities are not needed then the cost and space can be avoided Technical support 650
14. the Data Port but still need to control boot configuration and retrieve status information Download it from our website www avalanwireless com sw EVK_Utility_Lite zip If you activate the ping pong mode by turning on DIP Switch 11 you can see the statistics change as the radios exchange their random data Next Steps You can connect your microcontroller circuitry to the AW900mSPI without unsolder ing it from the Evaluation Board by attaching your wiring to the probe points and leaving the USB disconnected Use DIP Switch 2 to control whether UART off or SPI on firmware is loaded at bootup or use a 10K resistor pull up or pull down on pin 8 as described in the Technical Summary on page 5 Also available on our website are some additional resources to help you with your own product development e AvaLAN s driver C Source Code for an ARM7 use at your own risk e Evaluation Board schematics e Evaluation Board Gerber layout files Just follow the links on www avalanwireless com downloads htm Technical support 650 384 0000 PAGE 38 www avalanwireless com User s Manual PAYA Telesis Technical support 650 384 0000 PAGE 39 www avalanwireless com Nku User s Manual FCC Certification The AW900MR OEM RF Module complies with Part 15 of the FCC rules and regulations Compliance with labeling requirements FCC notices and antenna regulations is required Labeling Requirements In order to inherit AvaLAN s FC
15. 12 UC11 UC10 UC9 UC8 Byte 21 ATX7 ATX6 ATX5 ATX4 ATX3 ATX2 ATX1 ATXO Byte 22 ATX15 ATX14 ATX13 ATX12 ATX11 ATX10 ATX9 ATX8 Byte 23 ARX7 ARX6 ARX5 ARX4 ARX3 ARX2 ARX1 ARXO Byte 24 ARX15 ARX14 ARX13 ARX12 ARX11 ARX10 ARX9 ARX8 Byte 25 BER7 BER6 BER5 BER4 BER3 BER2 BER1 BERO Byte 26 BER15 BER14 BER13 BER12 BER11 BER10 BERS BER8 Bytes 1 to 4 are the 32 bit total number of packets sent and received TPO to TP31 Bytes 5 to 8 are the 32 bit total number of failed packets sent and received FPO to FP31 Bytes 9 to 12 are the 32 bit total number of passed packets sent and received PPO to PP31 Bytes 13 to 16 are the 32 bit total number of broadcast packets sent and received BCO to BC31 Bytes 17 to 20 are the 32 bit total number of unicast packets sent and received UCO to UC31 Bytes 21 and 22 are the 16 bit average transmitted packet size over the last 32 packets ATXO to ATX15 Bytes 23 and 24 are the 16 bit average received packet size over the last 32 packets ARXO to ARX15 Bytes 25 and 26 are the 16 bit percentage block error rate BER15 8 is the integer Technical support 650 384 0000 PAGE 18 www avalanwireless com User s Manual FALIO OL 2 part and ranges from 0 to 100 BER7 0 is the 2 digit fractional part and ranges from 0 to 99 The block error rate is calculated over the last 1000 data blocks Version Command
16. C Certification compliance requires the following be stated on the device and within its operation manual FCC ID R4N AW900MR This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Label Warning WARNING The Original Equipment Manufacturer OEM must ensure that FCC labeling requirements are met This includes a clearly visible label on the outside of the final product enclosure that displays the contents shown in the figure below Figure A 1 Required FCC Label for OEM products containing the AvaLAN AW900MR OEM RF Module Contains FCC ID R4N AW900MR The enclosed device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation FCC Notices Adherence to the following is required IMPORTANT The AW900MR OEM RF Modules have been certified by the FCC for use with other products without any further certification as per FCC section 2 1091 Changes or modifications not expressly approved by AvaLAN could void the user s authority to operate the equipment IMPORTANT OEMs must test their final product to comply with unintentio
17. F trans mission The FIFO Full line Pin 10 will be asserted if the transmit FIFO cannot accept any more data If the host microcontroller attempts to submit data while the FIFO Full line is asserted then the Error Flag will also become asserted and the data being submitted will not be entered into the FIFO In UART mode the host Technical support 650 384 0000 PAGE 23 www avalanwireless com Nena User s Manual microcontroller is responsible for avoiding overflow setPacket SPI Mode 0x8A UART Mode 0x89 b7 b6 b5 b4 b3 b2 b1 bd Byte 1 BC ID6 ID5 ID4 ID3 ID2 ID1 IDO Byte 2 S7 S6 S5 S4 S3 S2 S1 So Byte 3 10 9 S8 Byte 4 DATA7 DATA6 DATA5 DATA4 DATA3 DATA2 DATA1 DATAO Byte 4 is repeated until all the data is sent BC is the Broadcast Flag BC 1 means send the packet to all Subscriber Units BC 0 means send the packet only to the Device ID specified in the rest of Byte 1 IDO to ID6 is the 7 bit integer Device ID of the Subscriber Unit that is to receive the data Note that if BC 1 and there is a non zero Device ID specified then all Subscribers but the one specified will receive the data SO to 10 is the 11 bit integer size of the Data packet in bytes number of data bytes being sent Reset Command The setReset command is used to reset the XC1220 and can be issued at any time durning normal operation After a reset has been issued the XC1220 takes
18. PAGE 36 www avalanwireless com AvaLAN EVK Utility v1 5 3463 User s Manual FALIO d Boot Configuration Stats amp Spectrum Data Terminal Data Terminal Port Disconnect Connected to COM3 Baud rate Data Bits Parity Stop Bits Note settings will automatically update when 115200 Zj zj None j 1 Y Get Config is clicked on Boot Configuration tab Send Mode Hex Text Send File ClearLog Save Log to File Target rebooted 18 By clicking the Data Terminal tab at the top of the window you are provided with a rudimentary means of exchanging data between the connected radios 19 The Data Terminal Port the lower numbered COM port associated with the radio should be selected from the drop down box near the top of the window Data terminal settings Baud rate etc are pre selected here from the boot configuration They may be overridden if desired without affecting the boot configuration Click Connect to establish communication between the Data Terminal and the radio The text box to the right of the Connect button should give a message verifying a successful connection The Connect button now changes to a Disconnect button Note that returning to the Boot Configuration tab and modifying and rebooting the radio will automatically disconnect the Data Terminal port and pop up an alert message to that effect 20 Text or binary data mode can be selec
19. a pa ft Q j T Ta lt S 6 oe oo Technical support 650 384 0000 PAGE 14 www avalanwireless com User s Manual FALIO 2 Network Key Command The Network Key is A 32 bit number used for Network Identification AvaLAN m series devices with different Network Keys will not be able to communicate with each other The Network Key can be changed without resetting the device The getNetworkKey command will read back the last 32 bit key issued to the device The setNetworkKey command stores a new 32 bit key to be used for RF communications getNetworkKey SPI Mode 0x02 UART Mode 0x01 setNetworkKey SPI Mode 0x82 UART Mode 0x81 b7 b6 b5 b4 b3 b2 b1 b0 Byte 1 PK7 PK6 PK5 PK4 PK3 PK2 PK1 PKO Byte 2 PK15 PK14 PK13 PK12 PK11 PK10 PK9 PK8 Byte 3 PK23 PK22 PK21 PK20 PK19 PK18 PK17 PK16 Byte 4 PK31 PK30 PK29 PK28 PK27 PK26 PK25 PK24 Private Key Command The Private Key is the 128 bit key used in the AES encryption of data transmitted over the RF This key must be set once at start up and cannot be changed without resetting the device If two or more radios have the same Public Key but different Private Keys they will connect with each other However the received data will be completely scrambled The getPrivateKey command reads back the private key issued at startup The setPrivateKey command stores the private key to be used for t
20. a from the AP can be sent to one specific SU or broadcast to all SUs Broadcast data has no retransmissions and is not guaranteed to reach all SUs Data from an SU is always sent to the AP with retransmissions Data is divided up into blocks for RF transmission This division of the data allows for better interference immunity and re transmission performance The getPacket command is used to read received data from the XC1220 The Data Ready line pin 9 will be asserted when data is present in the receive FIFO and will remain asserted until all data is read Once the Data Ready line has been asserted the host microcontroller has approximately 50ms until the data becomes corrupted in a high traffic scenario Obviously in UART mode the host microcontroller must be ready to receive data at any time getPacket SPI Mode Qx0A UART Mode N A b7 b6 b5 b4 b3 b2 b1 b0 Byte 1 ID6 1D5 ID4 1D3 ID2 ID1 IDO Byte 2 S7 S6 5 S4 3 S2 1 SO Byte 3 S10 s9 S8 Byte 4 DATA7 DATA6 DATAS DATA4 DATA3 DATA2 DATA1 DATAQ eee Byte 4 is repeated until all the data is received IDO to ID6 is the 7 bit integer Device ID of the Subscriber Unit the data was received from Access Point only for a Subscriber Unit the data is undefined SO to 10 is the 11 bit integer size of the Data packet in bytes number of data bytes to read The setPacket command is used to submit data to the transmit FIFO for R
21. al support 650 384 0000 PAGE 19 www avalanwireless com INNE User s Manual channel information back from the XC1220 The host microcontroller must delay while the XC1220 completes the scan before reading any data In SPI mode the XC1220 will use the Data Ready line pin 9 to indicate when the scan is complete and the data is available In UART mode the host microcontroller needs to issue the command and wait for data to be returned getRSSIReadings SPI Mode 0x09 UART Mode 0x08 b7 b6 b5 b4 b3 b2 b1 b0 Byte 1 SS3 SS2 S 1 SSO EXP3 EXP2 EXP 1 EXPO Note that this command is an exception to the general rule that get commands receive data and set commands send it This command must be followed by send ing one byte of configuration information and then reading back a variable number of data bytes SSO to SS3 is the frequency step size valid numbers are 1 2 4 8 EXPO to EXP3 is the base 2 exponent of the number of samples to collect and aver age together at each frequency step EXP3 0 Number of Samples 0 1 1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256 The number of samples and frequency step size affects the amount of time it takes to scan the band Astep size of 1 and exponent of 8 takes approximately 2 seconds to scan the band A step size of 8 and exponent of 32 takes approximately 300ms to scan Although a higher step size an
22. at successfully made it across the RF total number of broadcast packets total number of unicast packets average transmitted packet size in the last 32 packets average received packet size in the last 32 packets and percentage block error rate The statistics can be read from the XC1220 at any time during normal operation getStats SPI Mode 0x05 UART Mode 0x04 b7 b6 b5 b4 b3 b2 b1 b0 Byte 1 TP23 TP22 TP21 TP20 TP19 TP18 TP17 TP16 Byte 2 TP31 TP30 TP29 TP28 TP27 TP26 TP25 TP24 Byte 3 TP7 TP6 TP5 TP4 TP3 TP2 TP1 TPO Byte 4 TP15 TP14 TP13 TP12 TP11 TP10 TPO TP8 Byte 5 FP23 FP22 FP21 FP20 FP19 FP18 FP17 FPI6 Byte 6 FP31 FP30 FP29 FP28 FP27 FP26 FP25 FP24 Byte 7 FP7 FP6 FP5 FP4 FP3 FP2 FP1 FPO Byte 8 FP15 FP14 FP 13 FP12 FP11 FP10 FP9 FP8 Byte 9 PP23 PP22 PP21 PP20 PP19 PP 18 PP17 PP16 Byte 10 PP31 PP30 PP29 PP28 PP27 PP26 PP25 PP24 Technical support 650 384 0000 PAGE 17 www avalanwireless com Neeley User s Manual Byte 11 PP7 PP6 PP5 PP4 PP3 PP2 PP1 PPO Byte 12 PP15 PP14 PP 13 PP12 PP11 PP10 PP9 PP8 Byte 13 BC23 BC22 BC21 BC20 BC19 BC18 BC17 BC16 Byte 14 BC31 BC30 BC29 BC28 BC27 BC26 BC25 BC24 Byte 15 BC7 BC6 BC5 BC4 BC3 BC2 BC1 BCO Byte 16 BC15 BC14 BC13 BC12 BC11 BC10 BC9 BC8 Byte 17 UC23 UC22 uUC21 UC20 UC19 UC18 UC17 UC16 Byte 18 UC31 UC30 UC29 UC28 UC27 UC26 UC25 UC24 Byte 19 UC7 UC6 UC5 UC4 UC3 UC2 UC1 UCO Byte 20 UC15 UC14 UC13 UC
23. ctor allows easy integration 47 5 x 51 x 7 mm 10 grams e Frequency Channels 2 0833 MHz spacing and 1 75 MHz occupied bandwidth PO S dCSCtomati Selection oo S o S POS 088 a Technical support 650 384 0000 PAGE 4 www avalanwireless com User s Manual FALIO 2 Technical Summary The AW900mSPI modules from AvaLAN Wireless have an on board Baseband proces sor the XC1220 from AvaLAN Wireless The XC1220 handles all RF timing data buff ering AES encryption RF data transfers and statistics gathering The XC1220 must be connected to a host microcontroller via a Serial Peripheral Interface SPI or a Universal Asynchronous Receiver Transmitter UART AvaLAN s packaged radios such as the AW900XTR include a host microcontroller that provides an Ethernet interface The purpose of this RF only module is to allow you to create other ap plications and interfaces with your own electronics The host microcontroller is responsible for configuring the keys that the XC1220 uses for RF communication encryption as well as transferring data to and from the XC1220 The XC1220 features an 8kB transmit FIFO and a 5kB receive FIFO The RF communication topology that the modules use is a point to multipoint star topology There is one RF master Access Point AP and up to 63 RF slave Subscriber Units SU Data from the AP can be sent to one specific SU or broadcast to all SUs Broadcast data has no retransmissions and is not guarante
24. d lower exponent scan much faster a complete pic ture of the band may not be formed Devices that only transmit for a very short period of time may be missed with a fast scan Technical support 650 384 0000 PAGE 20 www avalanwireless com User s Manual FALOS d b7 b6 b5 b4 b3 b2 b1 b0 Byte 2 BASE7 BASE6 BASE5 BASE4 BASE3 BASE2 BASE1 BASEQ Byte 3 BASE15 BASE14 BASE13 BASE12 BASE11 BASE10 BASE9 BASE8 BASE is a 16 bit integer constant that provides the index offset for establishing the RF frequency For the AW900mSPI this value is 1688 b7 b6 b5 b4 b3 b2 b1 bO Byte 4 NUM7 NUM6 NUM5 NUM4 NUM3 NUM2 NUM1 NUMO Byte 5 DEN7 DEN6 DEN5 DEN4 DEN3 DEN2 DEN1 DENO NUM and DEN are 8 bit integer constants used to calculate the frequency value cor responding to each index step For the AW900mSPI NUM 25 and DEN 48 Frequency in MHz Index BASE NUM DEN Where Index is an integer value starting with zero For example the lowest trans mit channel for the AW900mSPI corresponds to an Index of 46 46 1688 25 48 903 125 MHz b7 b6 b5 b4 b3 b2 b1 b0 Byte 6 MAX7 MAX6 MAX5 MAX4 MAX3 MAX2 MAX1 MAX MAX is an 8 bit integer constant that represents the number of RF channels that the radio uses For the AW900mSPI this value is 12 It is important to save this number because
25. ed to reach all SUs Data from an SU is always sent to the AP with retransmissions Data is divided up into blocks for RF transmission This division of the data allows for better interference immunity and re transmission performance The digital interface to the AW900mSPI may be SPI or UART depending upon which firmware is running in the XC1220 Serial Peripheral Interface SPI is a full duplex synchronous serial interface SPI is a master slave interface with the master providing the synchronous clock Universal Asynchronous Receiver Transmitter UART is an asynchronous serial interface that allows data to be transmitted without a clock signal but the sender and receiver of the data must agree in advance on the timing parameters and spe cial bits are added to each data byte to synchronize the sending and receiving units Selecting SPI or UART The choice of interface is up to the user and governed by the user s application and the nature of the host microcontroller UART is more common being closely related to RS 232 It is also places fewer demands on the host microcontroller The UART interface is limited to 115 200 bits per second while SPI may be run as high as 7 megabits per second Whether the AW900mSPI uses SPI or UART is a choice that is controlled at boot up By connecting a 10K resistor from Pin 8 Error Flag to Vcc pull up the AW900mSPI will boot up in UART mode If the resistor is connected instead to ground pull down
26. for the RF channel selected All zeros means use automatic channel switching TEST 1 Continuous traffic for site survey testing 0 normal operation Technical support 650 384 0000 PAGE 11 www avalanwireless com Neeley User s Manual Module Command Set The Command Sets for SPI and UART modes are somewhat different SPI Command Set Command Byte HEX Command 0x01 getStatus 0x02 getNetworkKey 0x03 getPrivateKey 0x04 getDevicelD 0x05 getStats 0x06 getVersion 0x07 not valid 0x08 getNumberofConnectedSUs 0x09 getRSSIreadings 0x0A getDATAPacket 0x81 setStatus 0x82 setPubLicKey 0x83 setPrivateKey 0x84 setDeviceID 0x85 setReset 0x86 not valid 0x87 not valid 0x88 not valid 0x89 not valid 0x8A setDATAPacket 0x8B setF irmwareStart Ox8C setF irmwareEnd Technical support 650 384 0000 PAGE 12 www avalanwireless com User s Manual BAY ATele a ns UART Command Set Command Byte HEX Command 0x00 getStatus 0x01 getNetworkKey 0x02 getPrivateKey 0x03 getDeviceID 0x04 getStats 0x05 getVersion 0x06 getConfig 0x07 getNumberofConnectedSUs 0x08 getRSSIreadings 0x09 not valid 0x80 setStatus 0x81 setPubLicKey 0x82 setPrivateKey 0x83 setDeviceID 0x84 setReset 0x85 not valid 0x86 not valid 0x87 not valid 0x89 not valid 0x8B
27. gure the module read status information issue firmware upgrades and transfer data The first byte on the MOSI line after the CS_BB line goes low is the Command Byte This byte tells the XC1220 what command is to be executed Command Byte b7 b6 b5 b4 b3 b2 b1 b0 get set CMD3 CMD2 CMD 1 CMDO get set When set this bit indicates that information will be sent to the XC1220 on MOSI1 and MISO1 will be high impedance When clear a get transaction will take place and information will be sent from the XC1220 on MISO1 After the command byte is issued the master microcontroller must delay for at least 4 us to allow the XC1220 enough time to prepare for the transaction When a transaction is complete and the CS_BB line is high the master micro controller must delay for at least 6 us to allow the XC1220 to finish processing the transaction CMD3 1 These bits are used to tell the XC1220 what command is to be executed Technical support 650 384 0000 PAGE 9 www avalanwireless com Neelys User s Manual Module UART Interface Here are the Signal definitions for the AW900SPI in UART mode Vec 3 3 vde for XC1220 D CS_LED Chip select for external programming device a T T T T T T RFVcc 3 3 vdc for RF section RF GND RF section ground In UART mode the AW900mSPI s command interface is moved to SPIO The LEDs and DIP switches may still be employed but the primary purpose of thi
28. he AES encryp tion This command should be issued only once at start up If issued again with a different key data corruption will occur getPrivateKey SPI Mode 0x03 UART Mode 0x02 setPrivateKey SPI Mode 0x83 UART Mode 0x82 b7 b6 D5 b4 p5 b2 b1 bo Byte 1 SK7 SK6 SK5 SK4 SK3 SK2 SK1 SKO Byte 2 SK15 SK14 SK13 SK12 SK11 SK10 SK9 SK8 Technical support 650 384 0000 PAGE 15 www avalanwireless com IN eles User s Manual Byte 3 SK23 SK22 SK21 SK20 SK19 SK18 SK17 SK16 4 SK31 SK30 SK29 SK28 SK27 SK26 SK25 SK24 5 SK39 SK38 SK37 SK36 SK35 SK34 SK33 SK32 Byte 6 SK47 SK46 SK45 SK44 SK43 SK42 SK41 SK40 T 8 9 SK55 SK54 SK53 SK52 SK51 SK50 SK49 SK48 SK63 SK62 SK61 SK60 SK59 SK58 SK57 SK56 SK71 SK70 SK69 SK68 SK67 SK66 SK65 SK64 Byte 10 SK79 SK78 SK77 SK76 SK75 SK74 SK73 SK72 Byte 11 SK87 SK86 SK85 SK84 SK83 SK82 SK81 SK80 Byte 12 SK95 SK94 SK93 SK92 SK91 SK90 SK89 SK88 Byte 13 SK103 SK102 SK101 SK10 SK99 SK98 SK97 SK96 Byte 14 SK111 SK110 SK109 SK108 SK107 SK106 SK105 SK104 Byte 15 SK119 SK118 SK117 SK116 SK115 SK114 SK113 SK112 Byte 16 SK127 SK126 SK125 SK124 SK123 SK122 SK121 SK120 Device ID Command The Device ID command has two uses depending on whether the device is config ured as an access point AP or subscriber unit SU In either case the Device ID i
29. he AP every time a search for more SUs takes place On a SU PWR chang es state every time the SU responds to a search for more SUs RX_ACT Indicates when data traffic has been received by the RF RX_ACT will be set for 32ms when data has been successfully received LCH5 0 Indicates what RF channel is currently in use In troubleshoot mode these bits indicate what the unit s device ID is Byte4 b7 b6 b5 b4 b3 b2 b1 b0 TX_ACT RFQ5 RFQ4 RFQ3 RFQ2 RFQ1 RFQO TX_ACT Indicates when data traffic is queued up for transmission across the RF Technical support 650 384 0000 PAGE 8 www avalanwireless com User s Manual FALIO OLS 2 TX_ACT will be set for 32ms when data is queued up for transmission RFQ5 0 Indicates the quality of the RF link The lowest quality is only bO set the highest quality is reached when b5 is set DIPs A bit that is set in this byte indicates that the corresponding DIP switch is on Byte3 b7 b6 b5 b4 b3 b2 b1 b0 DCH5 DCH4 DCH3 DCH2 DCH1 DCHO MODE DCH5 0 Used to set the radio into manual channel mode and use the channel indi cated If DCH5 0 are all clear then the radio will be in automatic mode MODE When set the unit is in troubleshooting mode when clear the unit is in normal operation SPI1 Command Interface SPI1 is a slave mode SPI meaning SCK is supplied by an external source This SPI is used to confi
30. it tells you how many bytes of data to read next b7 b6 b5 b4 b3 b2 b1 bO Byte 7 MK7 MK6 MK5 MK4 MK3 MK2 MK1 MKO Byte 8 MK15 MK14 MK13 MK12 MK11 MK10 MK9 MK8 Repeat MAX times to read all the values MK is a 16 bit integer that contains the Index value for each RF channel Bytes 7 and 8 will repeat until MAX values have been read For the AW900mSPI this will total 24 bytes Byte7 through Byte30 b7 b6 b5 b4 b3 b2 b1 b0 Byte 31 DP7 DP6 DP5 DP4 DP3 DP2 DP1 DPO Technical support 650 384 0000 PAGE 21 www avalanwireless com INEN User s Manual Byte 32 DP15 DP 14 DP 13 DP 12 DP11 DP10 DP9 DP8 DP is the 16 bit integer number of data points in the spectrum scan The value will depend upon the frequency step size specified in Byte1 The next 4 data bytes will be repeated DP times b7 b6 b5 b4 b3 b2 b1 b0 Byte 33 OFS7 OFS6 OFS5 OFS4 OFS3 OFS2 OFS1 OFSO Byte 34 OFS15 OFS14 OFS13 OFS12 OFS11 OFS10 OFS9 OFS8 Byte 35 PEAK7 PEAK6 PEAKS PEAK4 PEAK3 PEAK2 PEAK1 PEAKQ Byte 36 AVG7 AVG6 AVG5 AVG4 AVG3 AVG2 AVG1 AVGO Repeat DP times to read all the spectrum data OFS is the 16 bit integer Index value for this data point The range of this index is 0 to 128 Frequency Step Size For example with a step size of 1 the maximum value of OFS is 127 but with a step size of 8
31. m any folder on your hard drive and requires no installation or registry modification The dll must be in the same folder as the exe 5 Run EVKUtility exe You should see a window similar to that on the following page The application window has three tabs with the Boot Configuration tab appearing first Technical support 650 384 0000 PAGE 33 www avalanwireless com IN eyeleynsioam User s Manual AvaLAN EVK Utility v1 5 lelo j Boot Configuration ls Stats amp Spectrum if Data Teminal Boot Config Serial Port l USB Serial Port COM4 Load boot configuration from file on local computer Get boot configuration from target AccessPoint m Number of Subscriber Units 5 Subscriber Unit Subscriber ID Channel 00 12 00 00 auto mode Network Name 32 bit Hex 0012 3456 AES Private Key 128 bit Hex 5678 1234 9098 7654 3212 3456 7890 9876 Baud rate Data Bits Parity Stop Bits Data Terminal Serial Port Settings 115200 x 8 None 1 Bit Delay 06 Record Length 10 Save boot config to file on local computer E Send boet cong toga an automaticaly bt Config takes effect after reboot Received stats from target 6 The dropdown list labeled Boot Config Serial Port will offer a choice of all active USB Serial COM ports on your system the one you should select is the higher numbered of the two ports associated with the Evaluation Board 7 Next you have the ch
32. nal radiators FCC section 15 107 and 15 109 before declaring compliance of their final product to Part 15 of the FCC Rules IMPORTANT The AW900MR OEM RF Modules have been certified for fixed base station and mobile applications If modules will be used for portable applications the device must undergo SAR testing NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiving module Connect the equipment into an outlet on a circuit different from that to which the receiving module is connected Consult the dealer or an experienced radio TV technician for help Antenna Warning WARNING This device has been tested with Reverse
33. nsaction and must use the setPacket command to be issued to the XC1220 Since data can be submitted to the XC1220 faster than it can be stored in flash the FIFO Full line must be carefully observed to make sure none of the blocks are lost If the last firmware block is not a full 64 bytes it must be padded with zeros setPacket SPI Mode Qx8A b7 b6 b5 4 b b2 b1 ba Byte 1 BC ID6 ID5 D4 D ID2 ID1 IDO Byte 2 S7 S6 5 4 s S2 1 SQ Byte 3 E 10 s9 S8 Byte 4 OFS7 OFS6 OFS5 OFS4 OFS3 OFS2 OFS1 OFSO Byte 5 OFS15 OFS14 OFS13 OFS12 OFS11 OFS10 OFS9 OFS8 Byte 6 DATA7 DATA6 DATAS DATA4 DATA3 DATA2 DATA1 DATAQ Byte 7 DATA15 DATA14 DATA13 DATA12 DATA11 DATA10 DATA9 DATA8 amp ous Bytes 6 and 7 are repeated 32 times Byte 70 CHK7 CHK6 CHK5 CHK4 CHK3 CHK2 CHK1 CHKO Byte 71 CHK15 CHK14 CHK13 CHK12 CHK11 CHK10 CHK9 CHK8 BC must be set and IDO to ID6 must be clear Byte 1 is 0x80 SO to 10 must be set to 68 Byte 2 is 0x44 and Byte3 is 0x00 OFSO to OFS15 is the 16 bit integer firmware block number This value will be in cluded in the checksum calculation DATAO to DATA15 is the 16 bit firmware data 32 values per block Technical support 650 384 0000 PAGE 25 www avalanwireless com Neeley User s Manual CHKO to 15 is the 16 bit integer checksum value for the block It is calculated in the host microcontroller as follo
34. ntrol Panel and choose Device Manager from the choices available there In Device Manager under the Ports item you should see a pair of USB Serial Ports with associated COM numbers EF S Device Mai 9 m m E H 2 Keyboards E3 A Mice and other pointing devices H Monitors H E Network adapters H Portable Devices Ports COM amp LPT 1 Communications Port COM1 YF USB Serial Port COM3 Y USB Serial Port COM4 c i Processors H Sound video and game controllers File Action View Help n A gt Starane controllere 3 If the USB Serial Ports are there skip this step and go on to the next If they are not and you are sure that the Evaluation Board is connected to a USB port on your PC then download and install the latest driver from www ftdichip com Go to that website and find the latest driver for your oper ating system and for the FT2232 series of chips Install the driver following the instructions provided by them 4 Go to the AvaLAN website and download the latest version of the software utility for this product www avalanwireless com sw EVK_Utility zip Follow this link or use the navigation menu avalanwireless com gt Support gt Documentation amp Downloads choose AW900mSPI and the EVK Utility link Save the zip file wherever you like When you extract the file it will create a folder that contains three files EVKUtility exe ZedGraph dll and EVK conf The util ity will run fro
35. oice of loading the boot configuration from a file or re trieving it from the AW900mSPI A sample file is provided for your convenience as EVK conf The configuration file is a readable and editable text file but the easiest way to modify it is to load it with the utility change what you wish in the set of boot configuration parameters and then save it back to your PC 8 The Boot Config parameters are as follows e Access Point AP or Subscriber Unit SU radio buttons Set one Evaluation Board to be an AP and the other to be a SU e Number of Subscriber Units if AP or Subscriber ID if SU An AP will support up to 16 SUs at one time and their assigned IDs should be assigned consecutively from 1 to n For the pair of Evaluation Boards set both to 01 e Channel a two digit number from 00 to 12 specifying the RF channel to use or allowing automatic selection with the code 00 The AP and associated SUs must use the same channel either automatically negotiated or set in common Technical support 650 384 0000 PAGE 34 www avalanwireless com User s Manual FALIO 2 10 11 12 13 Network Name a 32 bit entered as 4 hex digits network key that must be the same for all communicating radios AES Private Key a 128 bit entered as 32 hex digits value that is the private encryption key used to secure the traffic sent between radios All communi cating radios must have the same assigned key Serial Port Settings
36. on parameters for both Evaluation Boards and that the configurations are compatible one AP one SU matching channels keys and serial port settings When both radios are configured properly their LEDs will indicate that they are successfully communicating Their channel LEDs will show the same binary channel number and the quality LEDs will indicate RF signal strength If a radio is continuously scanning through the RF channels and just one red quality light is lit the units have not successfully negotiated an RF connection and a mis matched configuration is likely to be the cause By clicking the Stats amp Spectrum tab at the top of the utility s window you will see a window that allows you to examine the AW900mSPI s reported status information and to perform a spectrum scan of the 900 MHz frequency band to look for interference sources Technical support 650 384 0000 PAGE 35 www avalanwireless com IN eles User s Manual AvaLAN EVK Utility v1 5 O Stats amp Spectrum Serial Port USB Serial Port COM4 zj Statistics and Information Spectrum Scan Samples Step Size 2 z Get Spectrum Scan ine Value E Continuous Spectrum Scan Until Unchecked C a Radio Block Error Rate 0 7 7 T a Radio Failed Packets 0 Radio Passed Packets 4 Radio Broadcast Packets 3 Radio Unicast Packets 1 Radio Average TX Size 11 Radio Average RX Size 18 Curent RF Channel 6 X Connected Subscribers Subscriber Key 1
37. quired text Figure 1 is clearly placed on the outside of the final product 2 AW900MR Module may be used only with Approved Antennas that have been tested with this module Antenna Type Type Maximum Gain Omni directional Monopole lt 3dBi Table 1 Type certified Antennas IC Industry Canada Certification Labeling requirements for Industry Canada are similar to those of the FCC A clearly visible label on the outside of the final product enclosure must display the following text Contains Model AW900MR Radio IC 5303A AW900MR Integrator is responsible for its product to comply with IC ICES 003 amp FCC Part 15 Sub B Unintentional Radiators ICES 003 is the same as FCC Part 15 Sub B and Industry Canada accepts FCC test report or CISPR 22 test report for compliance with ICES 003 Technical support 650 384 0000 PAGE 40 www avalanwireless com
38. r Service 650 641 3011 Fax 650 249 3591 Technical support 650 384 0000 PAGE 2 www avalanwireless com User s Manual FAAO 2 Table of Contents Features and Specifications 4 Technical Summary 00ceeeeeeeee D Module Physical Interface 06 6 Module SPI Interfaces 000 e eee eens 6 Module UART Interface ee ee ewes 10 Module Command Set 0eee ees 12 Programming Examples 22ee0005 26 Implementation Block Diagrams 29 Evaluation Board Physical Interface 30 Technical Evaluation Process 6 31 Next Steps c cece ce ee ee a eee SR we eH Oe 38 FCC and IC Certification 0 ewes 39 Technical support 650 384 0000 PAGE 3 www avalanwireless com Neeley User s Manual Features and Specifications e 1 54 Mbps DSSS Radio with High Speed SPI and UART Data Interfaces e FCC IC Certified modular approval e 128 Bit AES Encryption FIPS 197 NIST Certified e 148 dB link budget at 900 Mhz enables exceptional range e 4 Watts EIRP with 15 dBi antennae 21 dB conducted e 112 dB receiver sensitivity with 15 dBi antennae 98dB at port e TDMA MAC supports up to 63 concurrent subscribers e Low power consumption 0 75 Watts in transmit 0 5 Watts in receive 100 pW in standby e Wide Temperature range 40 to 85 C e Narrow occupied bandwidth allows 12 channels at 900 Mhz e Small form fa
39. s 9 Send one byte indicating what type of device and ID number 10 Deassert CS_BB and delay for 6 us 11 Assert CS_BB and issue setStatus 0x81 command and delay for 4 ps 12 Send one byte with bit 6 set to take radio out of standby mode Technical support 650 384 0000 PAGE 26 www avalanwireless com User s Manual FALIO OL 2 13 Deassert CS_BB 14 Wait for Connected Flag to be set The AW900mSPI is now initialized and connected ready to send and receive data Send Data Example AP Side iP 2 3 4 5 6 If Connected Flag is clear or FIFO Full Flag is set then end Else assert CS_BB drive line low and issue setPacket 0x8A command and delay for 4 us Send first byte indicating if a broadcast packet or a unicast packet Send two bytes indicating data size in bytes Send all data bytes Deassert CS_BB drive line high and delay for 6 ps Get Data Example AP Side 1 Oe eS If Data Ready Flag is set assert CS_BB drive line low and issue getPacket Ox0A command and delay for 4 us Gets first byte to determine what SU sent the packet Get next two bytes to determine the packet size in bytes Get all data bytes Deassert CS_BB drive line high and delay for 6 ps If Data Ready is still set then repeat all steps RSSI Example 1 gt So oY DI Assert CS_BB drive line low and issue getRSSIreadings 0x09 command and delay for 4 us Send first byte to tell XC1220
40. s a 6 bit number allowing a maximum ID of 63 The Device ID must be issued at start up and must not be changed without resetting the device For the AP the Device ID is the maximum SU ID that is allowed to connect to the RF network For the SU the Device ID is the individual ID number assigned to the device This ID number is used as an address during data transfers The getDevicelD command reads back the configured ID The setDevicelD command configures the device to be either an AP or an SU and what ID to use getDevicelD SPI Mode 0x04 UART Mode 0x03 setDevicelD SPI Mode 0x84 UART Mode 0x83 b7 b6 b5 b4 b3 b2 b1 b0 Byte 1 D1 DO MID5 MID4 MID3 MID2 MID1 MIDO Technical support 650 384 0000 PAGE 16 www avalanwireless com User s Manual FALIO OLS 2 D1 DO These bits report or configure whether the device is an AP or an SU D1 DO Mode 0 0 Not Configured 0 1 AP 1 O AP 1 1 SU MID5 0 These bits read back or set the configured ID For an AP this is the maxi mum ID number that is allowed to join the RF network For an SU it is the number to use to join the RF network Stats Command The getStats command is used to gather all the statistics that the XC1220 is collect ing about the RF link The statistics are total number of packets transferred total number of packets that failed to make it across the RF total number of packets th
41. s SPI port has shifted SPI1 now becomes an asynchronous UART with TX on pin 14 and RX on pin 15 and is used for data that is transmitted and received via the RF 1 2 3 4 5 7 10 11 12 13 14 15 16 7 At the risk of belaboring what is obvious and familiar to most engineers because of the long history of RS 232 the UART signals consist of a set of bits sent with a pre defined clock rate The sender must agree on what the rate is and because the sender s clock and receiver s clock may not exactly agree synchronization informa tion is sent with each byte of data Baud Rate 1 T Single byte transmission 8 bits Start Stop The Stop Bit can actually be any duration and provides the variable delay that allows synchronization between sender and receiver Sometimes the Stop Bit is Technical support 650 384 0000 PAGE 10 www avalanwireless com User s Manual FAAI OLN ad specified to be at least two intervals Also sometimes a Parity Bit is sent between D and the Stop Bit but this is rarely done anymore UART Mode LEDs and DIPs With the UART firmware running the LED definitions are the same as for SPI mode and provide diagnostic information if desired The DIP switch definitions are slightly different b7 b6 b5 b4 b3 b2 b1 bo Byte3 DCH3 DCH2 DCH1 DCHO MODE Byte4 TEST MODE 1 Access Point 0 Subscriber Unit DCH3 to DCHO 4 bit binary code
42. setDATAPacket In the Command Descriptions that follow the command codes for each mode are shown in the byte tables Technical support 650 384 0000 PAGE 13 www avalanwireless com IN eleva User s Manual Status Command The getStatus command is used to find out the current status of the module getStatus SPI Mode 0x01 UART Mode 0x00 Byte 1 b7 b6 b5 b4 b3 b2 b1 b0 RFState Radio CH3 CH2 CH1 CHO RFState When set this bit indicates that the RF is currently connected Radio Indicates what mode the radio is in when set it is in active mode When clear the RF is in standby mode CH3 0 Indicates what channel the RF is currently using The setStatus command is used to place the module in standby mode normal op eration and to set the RF into manual channel mode by assigning a specific channel setStatus SPI Mode 0x81 UART Mode 0x80 Byte 1 b7 b6 b5 b4 b3 b2 b1 b0 Radio CH3 CH2 CH1 CHO Radio Setting this bit places the radio in active mode clearing it places it in standby mode CH3 0 When these bits are cleared the radio is in automatic channel mode When any of these bits are set the radio will be in manual channel mode and use the chan nel indicated by these bits if it is valid 909 375 0 913 5417 926 0417 o o o o o o EREA e e n o 1 a EHEH 1 o 1
43. ted using the Mode buttons Data to be transmitted should be entered into the one line black box near the bottom of the window and will be transmitted to the other radio when Send is clicked or the Enter key is used Technical support 650 384 0000 PAGE 37 www avalanwireless com IN eleva User s Manual 21 The Send File button may be used to transmit contents of a file Please be aware that the UART interface lacks flow control and long data files will not be transferred successfully 22 Data that is sent will appear in the large black box in green Data that is re ceived will also appear here in cyan This information is also accumulated and may be saved to a file on your PC with the Save Log to File button The log will be cleared and a new one started by clicking Clear Log or by disconnecting and reconnecting the COM port 23 Under certain circumstances changing the configuration after exchanging data with the Data Terminal may cause the boot config COM port to hang When this happens the status bar at the bottom of the utility window will show Cannot read from target on COMx The operation has timed out If this happens cycle power on the Evaluation unit with the black power switch on the board and try the operation again 24 There is a second utility available called EvkUtilityLite that removes the Data Terminal functionality for those who prefer to use hyperterminal or some oth er application to interface with
44. the familiar parameters associated with any UART con nection baud rate data bits parity and stop bits Bit Delay and Record Length These are performance tuning parameters that help to optimize the match between incoming data and packet transmission in UART mode For a complete discussion go to avalanwireless com faqs com and look for AW900mSPI Performance Tuning When you are satisified with the Boot Config parameters you may save them to a file of your choice on your PC by clicking the Save button Then click Send to send the boot file to the XC1220 on the module You should see a mes sage indicating successful upload in the status bar at the bottom of the utility s window The Send button will also cause the module to reboot The status bar will then show Target Rebooted You can verify that the boot configuration parameters were successfully loaded by clicking the Get button and seeing no change from what was sent The Reboot Target button can be used to reboot without uploading the configuration At this point you will want to activate the second Evaluation Board by repeat ing steps 1 through 9 with it If both Evaluation Boards are connected to the same PC the COM port numbers assigned will be different The higher num bered COM port in each pair is always the Boot Config Serial Port and the lower numbered port is used for data that is transmitted and received via RF Make sure that you can update the Boot Configurati
45. what step size and number of samples to use Get two bytes to determine the Base Frequency multiplier Get two bytes to determine the Numerator and Denominator for frequency calculations Get one byte to determine how many channel markers there are Get all channel markers Wait for Data Ready to be set Get two bytes to determine the number of data points to be read Technical support 650 384 0000 PAGE 27 www avalanwireless com Neeley User s Manual 9 Get four bytes for Step Number Peak Power and Average Power 10 Repeat step 9 for all data points 11 Deassert CS_BB drive line high and delay for 6 ps Firmware Update Example 1 SO 120 OO SY Re tS O Assert CS_BB drive line low and issue setFirmwareStart 0x8B command and deassert CS_BB drive line high Delay for 5 ps Wait for Data Ready to be asserted While FIFO Full is set wait Assert CS_BB and issue setPacket 0x8A command and delay for 4 ps Send first byte as 0x80 Send next two bytes as 0x44 and 0x00 respectively for packet size of 68 Send two bytes to indicate Firmware block offset of following payload Send 64 payload bytes Send two bytes for checksum Delay 4 us then check Error Flag If Error Flag is clear then deassert CS_BB and delay for 4 us Prepare next Firmware block and loop to Step 4 Else if Error Flag is set then deassert CS_BB and delay for 4 us Loop to Step 4 Repeat
46. ws Initialize a 16 bit register to 0x1911 2 Add the 16 bit data value to the register beginning with the firmware block number 3 Perform a rotate left with no carry by 5 bit positions Repeat steps 2 and 3 for all 34 words OFS and DATA Once all blocks have been submitted to the XC1220 then the host microcontroller must issue the setFirmwareEnd 0x8C command Once the setFirmwareEnd com mand has been issued to the XC1220 the host microcontroller must wait for the programming to complete The XC1220 will indicate this by deasserting the Data Ready line pin 9 Once the Data Ready line is deasserted programming is com plete and it is safe to reset the XC1220 with the setReset command 0x85 A reset is required before the XC1220 will begin executing the new firmware image Programming Examples Note that these examples apply to SPI mode Initialization Example To initialize the XC1220 follow these steps 1 At startup delay for 300 ms to allow the XC1220 enough time to initialize X Assert CS_BB drive the line low and issue setNetworkKey 0x82 com mand and delay for 4 ps 3 Send 3 bytes with 24 bit Network Key value 4 Deassert CS_BB drive the line high and delay for 6 us 5 Assert CS_BB and issue setPrivateKey 0x83 command and delay for 4 us 6 Send 16 bytes with 128 bit Private Key value 7 Deassert CS_BB and delay for 6 ps 8 Assert CS_BB and issue setDevicelD 0x84 command and delay for 4 p
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