ISM Band Repeater Demo

Transcription

1 IA ISM-UGRP ISM Band Repeater Demo User Guide Version.0r - PRELIMINARY IA ISM-UGRP Rev.0r , Silicon Laboratories, Inc.

2 Silicon Labs, Inc. 00 West Cesar Chavez Austin, Texas 7870 Tel: Fax: Toll Free: ISM Band Repeater Demo User Guide Version.0r - Preliminary Revision Date: December 5, 005 The information is provided as is without any express or implied warranty of any kind, including warranties of merchantability, non-infringement of intellectual property, or fitness for any particular purpose. In no event shall Silicon Laboratories, Inc., or its suppliers be liable for any damages whatsoever arising out of the use of or an inability to use the materials. Silicon Laboratories, Inc., and its suppliers further do not warrant the accuracy or completeness of the information, text, graphics, or other items contained within these materials. Silicon Laboratories, Inc., may make changes to these materials, or to the products described within, at any time, without notice. 008 Silicon Laboratories, Inc. All rights reserved. Silicon Laboratories is a trademark of Silicon Laboratories, Inc. All trademarks belong to their respective owners. i

3 ABOUT THIS GUIDE The ISM Band Repeater Demo is designed to show the use of Silicon Labs' IA0/IA/IA0/IA0 chipsets in a multi-transmitter/receiver environment. For further information on the devices found in this user guide, please visit our Web site: integration and download the following datasheets: IA0 Universal ISM Band Transmitter datasheet: IA Universal ISM Band Transmitter datasheet: IA0 Universal ISM Band Receiver datasheet: IA0 Universal ISM Band Transceiver datasheet: IA0-DS IA-DS IA0-DS IA0-DS ii

4 TABLE OF CONTENTS Demo Kit Contents... Overview... Repeater Demo Description... Demo Unit Table of Contents...5 Radio Hardware: IA0/ Transmitter Section... 7 Schematic... 8 MHz Layouts MHz Layouts... 0 Radio Hardware: IA0 Transceiver Section... Schematic:. 50 Ohm Repeater Demo (LCD Version)... PCB Layout: 50 Ohm Repeater Demo (LCD Version)... Schematic: 50 Ohm Repeater Demo (Non-LCD Version)... PCB Layout: 50 Ohm Repeater Demo (Non-LCD Version)... 5 Radio Hardware: IA0 Receiver Section... 7 MHz Receiver Schematic... 8 MHz Receiver Layouts MHz Receiver Schematic MHz Receiver Layouts... iii

5 DEMO KIT CONTENTS This document describes designs available on the development kit CDROM for the and 95 MHz ISM Repeater Demo. Also covered are the diagrams for both LCD and non-lcd variants. For further details, please refer to integration/evaluation_kits.php or the IA ISM-DKxx CDROM. IA ISM-UGRP contains the following items: Push Button Demo transmitter board Two Push Button Demo receiver boards Repeater Demo board User Guide This document is designed to provide as the user guide to all variants of the Repeater Demo. Photographs may differ depending on version. The photograph above is the MHz LCD version.

6 OVERVIEW The demo s main objective is to show the IA0 s capability to monitor multiple frequencies, receive data from an FSK transmitter, and then re-transmit this data on an another arbitrary frequency to another receiver or transceiver. This demonstration is designed to show the IA0 acting as a repeater node. The Repeater Demo has three main components: the IA0, which is the system radio, a C805F type 805 microcontroller, which controls the application, and a line 6 character LCD, which informs the user of the repeater status (Note). The current version of the Repeater Demo is equipped with a 50 Ohm SMA connector for the antenna. IA0 Controller ISM Transceiver FIFO TX Latch SPI Interface SPI Interface Physical layer SW Uart Interface Serial Software parts in C805F TX/RX buffer IA0 control Packet Receiver Scheduler Packet Builder Repeater function Packet Transmitter LCD Interface LCD Fig. Repeater Block Diagram Note: LCD only available on some models.

7 OVERVIEW The demo uses the developer-friendly features of the IA0 device. In receive mode the microcontroller reads the received bytes from the IA0 s FIFO, and transmits them through the TX latch. This approach dramatically reduces the load on the micro, because the microcontroller doesn t have to monitor every bit, only the bytes. This means the timing constraints in an application can be reduced at least by a factor of eight for both the transmitting and the receiving sides. See the PROCESSOR ACTIVITY lines on Figure, as demonstrated for both the Traditional transceiver mode and the Integration FIFO mode. "Traditional" mode DATA CLK PROCESSOR ACTIVITY byte FIFO mode RF PACKETS (8bit) 5 INTERRUPT REQs PROCESSOR ACTIVITY FIFO IT level set to 8 bit FIFO LEVEL STATUS FIFO empty Fig. Process Activity in FIFO Mode when Compared to a Traditional Mode of Operation

8 IA0 DESCRIPTION The frequency configuration of this demo is as follows: One of the Push Button Demo receivers is set to a different frequency than that of the Push Button transmitter. The other receiver is paired with the frequency of the transmitter. The Repeater demo receiving frequency is set to the frequency of the Push Button demo transmitter.. The Repeater demo transmitting frequency is set to the non-paired Push Button demo receiver s frequency Push Button Demo receiver on F LED LED LED LED IA0 uc IA0 LCD S S S S Push Button Demo transmitter on F LED LED IA0 LED LED Repeater Demo transmitter, receives on F, transmits on F Push Button Demo receiver on F Note: Diagram may differ depending on type. Fig. Repeater Demo Arrangement After power on, the Repeater Demo continually looks for a valid packet on the receiving frequency. This happens when one button has been pressed on the Push Button Demo transmitter. At this moment the LED will light up on the paired Push Button receiver board. After the Repeater Demo (transceiver board) properly receives this packet, it will forward the packet on its transmitting frequency. At that time, the LED will light up on the non-paired Push Button receiver board, if both of the Push Button Transmitter and Push Button Receiver are in the range of the Repeater Demo. It should be noted that the transceiver in this demo adds a small time delay between receiving and transmitting. This is done to prove the transmitter is not talking directly to the receiver. Depending on the button pressed, a different time delay is implemented. A packet is valid if it contains the preamble bytes (0xAA), the synchron pattern (0xDD), and the data, which corresponds to the Push Button Demo data structure. It can be shown that the paired Push Button demo is working alone, but if the Repeater demo is operating, then both the Push Button Receivers will work, and the RF communication range is significantly bigger than without the Repeater Demo.

9 Demo Unit TABLE OF CONTENTS Radio Hardware Stage IA0 Transmitter Stage IA0 Transceiver Stage IA0 Receiver 5

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11 Radio Hardware IA0/ TRANSMITTER SECTION Contents - Schematic - MHz Layouts - 95 MHz Layouts 7

12 IC R C C D + R HOLD\ SCK SI CS\ WP\ Array EEPROM 8 SO C R R R - SCHEMATIC: PUSH BUTTON DEMO TX BOARD SW 0 k 00p B 00n k SCK SI CS 0u SO IC LED SDI SCK FSK VDD 6 5 SEL IRQ WS RFP 5 WS RFN 6 7 WS WS MOD VSS 0 XTL 0 MHz 8 CLK/SDO XTL 9 SMDRET S SMDRET S SMDRET S SMDRET S 70 6k8 k Fig. IA0 MHz Push Button Transmitter Schematic Antenna configuration, along with the configuration/frequency setting commands denote operating frequency. Examples of the physical board differences can be seen on the following pages. It can be noted from these layouts that only the antenna is different. 8

13 PCB LAYOUT: MHZ PUSH BUTTON TX BOARD Fig 5. MHz Push Button Transmitter Board PCB Layout Fig 6. IA0 MHz Push Button Transmitter Board PCB Assembly Layout 9

14 PCB LAYOUT: 95 MHZ PUSH BUTTON TX BOARD Fig MHz Push Button Transmitter Board PCB Layout Fig 8. IA0 95 MHz Push Button Transmitter Board PCB Assembly Layout 0

15 Radio Hardware IA0 TRANSCEIVER SECTION Contents - 50 Ohm Transceiver LCD Board - 50 Ohm Transceiver Non-LCD Board

16 SCHEMATIC: 50 OHM REPEATER DEMO,V k It is not mounted. Fig 9. IA0 Transceiver Repeater Demo Schematic They are not mounted. R R - + ON D Green D Red D Yellow SERIAL SJ IC P0.0 P0. P0. P0. P0. P0.5 P0.6 P0.7 P.0 P. P. P. P. P.5 P.6 P P.0 P. P. P. P. P.5 P.6 P.7 P.0/CD 6 /RST/CCK 5 VDD IC IN OUT 5 C C,uF ON POK,uF IA-.V R5 C DEBUG R R6 R7 CLK XTL/REF 9 C Q IA0,7nF 0MHz Only rev. C or above! C5 C6 C7 R8 L L C9 C8 LCD 5 6 VLCD VSS VDD SDA POR SCL X R 0k R9 R0,7k R,7k POWER SEL NRES IRQ SCK MISO MOSI FFS FFIT INT/VDI ARSSI TX RX C805F TX RX SDA SCL SW SDA SCL NRES MOSI SCK SEL MISO IRQ FFS FFIT IC 6 SDI NINT/VDI INT/VDI SCK NSEL 5 ARSSI ARSSI VDD SDO RF NIRQ FSK/DATA/NFFS DCLK/CFIL/FFIT RF VSS 0 NRES NRES BATTERY 00nF uf 00pF 0pF 00k BT605,7k

17 PCB LAYOUT: 50 OHM REPEATER DEMO (LCD VERSION) Fig Ohm Repeater Demo PCB Layout Fig. 50 Ohm Repeater Demo IA0 Transceiver PCB Assembly Layout

18 SCHEMATIC: 50 OHM REPEATER DEMO (NON-LCD) SEL IC P0.0 P.0 SW P0. P. 5 SJ 8 P0. P. MOSI NRES 7 6 P0. P. R TX 6 0 P0. P. SCK IRQ RX 5 9 P0.5 P.5 8 P0.6 P.6 80 R SEL 7 P0.7 P.7 R5 80 MISO SCK 6 P.0 P.0/CD MISO P. 80 R6 IRQ MOSI 0 P. /RST/CCK P. FFS FFS 8 P. VDD FFIT 7 P.5 FFIT INT/VDI 6 C P.6 R7 ARSSI 5 P.7 NRES 00nF k C805F 6V,V Fig. IA0 Transceiver Repeater Demo Non-LCD Schematic R R D Red D Yellow D Green D Red J DEBUG IC 6 SDI NINT/VDI INT/VDI 8 CLK XTL/REF 9 C Q IA0,7nF 0MHz Only rev. C or above! X BATTERY IC IN OUT 5 C C,uF ON POK,uF IA-.V C5 C6 C7 uf 00pF 0pF R8 L L C9 C8 TX RX 5 SCK ARSSI ARSSI NSEL VDD SDO RF 5 NIRQ RF 6 FSK/DATA/NFFS VSS 7 0 DCLK/CFIL/FFIT NRES 00k

19 PCB LAYOUT: 50 OHM REPEATER DEMO (NON-LCD) Fig. 50 Ohm Repeater Demo PCB Layout Fig 50 Ohm Repeater Demo IA0 Transceiver PCB Assembly Layout 5

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21 Radio Hardware IA0 RECEIVER SECTION Contents - Schematic - MHz Layouts - 95 MHz Layouts 7

22 SCHEMATIC: MHZ PUSH BUTTON RX BOARD R 70 LED RED R C C C 0u 0n 0p 70 LED RED R LED RED VDD LED RED 70 R IC FCS0 FCS FBS0 FCS FBS VDD OUT0 IN OUT IN OUT VSS OUT FCS LPDM XTL SW VDD IA0 B0UNI + - G R5 0R R6 0R 6 5 VDD 0 9 0MHz XTAL Fig 5. Example configuration for the MHz IA0 in Standalone Mode Solder resistors R5, R6 according to the following table:.6 MHz R5, R6 = 0 Ohm. MHz R5, R6 not present 8

23 PCB LAYOUT: MHZ PUSH BUTTON RX BOARD Fig 6. MHz Push Button Receiver Board PCB Layout Lit.V 0x0, 0,x7,8 7,5x0, 0,x0, Fig 7. IA0 MHz Push Button Receiver Board PCB Assembly Layout 9

24 SCHEMATIC: 95 MHZ PUSH BUTTON RX BOARD FCS0 FCS FCS FCS LPDM FCS0 FCS FCS FCS LPDM VDD C C C 0uF0n 0p LED LED LED LED RED RED RED RED R R R R FCS0 LPDM FCS0 FBS0 FBS OUT0 OUT OUT OUT LPDM POWER IC IA0 VDD FCS FCS VDD IN IN VSS FCS XTL VDD=.V - 5.5V 6 FCS 5 FCS 0 FCS 9 0MHz XTAL VDD Antenna Fig 5. Example configuration for the 95 MHz IA0 in Standalone Mode MHz LPDM=0, FCS0=0, FCS=0, FCS=NC, FCS=0 96. MHz LPDM=0, FCS0=0, FCS=0, FCS=0, FCS=NC 0

25 PCB LAYOUT: 95 MHZ PUSH BUTTON RX BOARD Fig MHz Push Button Receiver Board PCB Layout Fig MHz Push Button Receiver Board PCB Assembly Layout

26 Silicon Labs, Inc. 00 West Cesar Chavez Austin, Texas 7870 Tel: Fax: Toll Free: The specifications and descriptions in this document are based on information available at the time of publication and are subject to change without notice. Silicon Laboratories assumes no responsibility for errors or omissions, and disclaims responsibility for any consequences resulting from the use of information included herein. Additionally, Silicon Laboratories assumes no responsibility for the functioning of undescribed features or parameters. Silicon Laboratories reserves the right to make changes to the product and its documentation at any time. Silicon Laboratories makes no representations, warranties, or guarantees regarding the suitability of its products for any particular purpose and does not assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability for consequential or incidental damages arising out of use or failure of the product. Nothing in this document shall operate as an express or implied license or indemnity under the intellectual property rights of Silicon Laboratories or third parties. The products described in this document are not intended for use in implantation or other direct life support applications where malfunction may result in the direct physical harm or injury to persons. NO WARRANTIES OF ANY KIND, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE OFFERED IN THIS DOCUMENT. 008 Silicon Laboratories, Inc. All rights reserved. Silicon Laboratories is a trademark of Silicon Laboratories, Inc. All other trademarks belong to their respective owners. 0