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参数资料
| 型号： | DEMO90121LR |
| 厂商： | Melexis Technologies NV |
| 文件页数： | 13/19页 |
| 文件大小： | 0K |
| 描述： | KIT DEMO LONG RANGE READER |
| 标准包装： | 1 |
| 类型： | 收发器 |
| 频率： | 13.56MHz |
| 适用于相关产品： | MLX90121 |
| 已供物品： | 阅读器电路板、天线板、3 个发射应答器卡、电源、RS232 缆线、软件和文档 |
| 产品目录页面： | 571 (CN2011-ZH PDF) |
DEMO90121LR
RFID Long Range Demo User Manual
9.2 Practical information
The firmware of the DEMO90121LR is based on the FW121 library. (FW90121: Firmware description) This
library provides the ISO15693 protocol functions as specific commands to control the MLX90121 and address
its internal registers. At power-on or reset, the microcontroller IO ports, timers, ADC, and watch-dog, and the
MLX90121 transceiver registers are configured for the ISO15693 protocol as described in the MLX90121
datasheet.
The firmware was developed using GCC under AVR Studio 4. The firmware can be loaded into the
microcontroller using the SPI interface connected to a STK500, STK300, AVRISP mkII module or similar,
driven by appropriate software (AVR Studio, PonyProg2000, etc). FW_LR21_15.c and FW_LR21_15.h
contain the firmware specific gcc code and the functions’ prototypes. HwDefs.h describes the hardware
(input, output pins, etc.). The file FW_LR21_15.aps is the AVR Studio 4 project file.
9.3 Instruction set
The instructions sent to the DEMO90121 are composed by ASCII parameters which form the operational
code (op-code) and the command parameters. Three main types of command can be sent, MLX90121
registers configuration, RFID commands and Anti-collision sequence.
MLX90121 registers configuration
The write register command starts with the op-code WrReg followed by the hexadecimal values of the
MLX90121’s 13 registers from register 0 to register 12.
WrReg R 0 R 0 R 1 R 1 R 2 R 2 R 3 R 3 R 4 R 4 R 5 R 5 R 6 R 6 R 7 R 7 R 8 R 8 R 9 R 9 R 10 R 10 R 11 R 11 R 12 R 12 ?
Identification
The identification command is used to identify the module. It has to be sent accordingly.
Idn ?
RFID commands
The RFID commands start with the op-code Iso15 followed by a variable number of Hexadecimal parameters
which form the RFID command. It has to be filled in accordance with the international standard specification
ISO15693-3. The instruction is ended by several key words according to the command itself.
Iso15
ISO15693 parameters CRC
SLOTx ?
CRC: The firmware will automatically calculate the CRC according to the ISO15693 specification and will
incorporate it into the command sent to the transponder.
SLOTx: Define the number of slots used during an Inventory or Write command. X must be between 1 and
16.
Anti-collision sequence
The firmware will execute a complete anti-collision sequence as defined in the ISO15693-3 specification. All
the detected UIDs will be returned. The anti-collision command will not select any transponder.
Iso15
Inventory
DS ?
DS: Specified only when using dual sub-carrier protocol. With single sub-carrier, DS has to be removed.
390129012104
Rev 003
Page 13 of 19
User Manual
Dec. 2009
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PDF描述 |
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| DEMOFLEXISJMSD | CARD READER M9S08JM60 |
| DF3GD | LIGHT BAR 565NM GREEN 6.8X19.9MM |
| DF3ID | LIGHT BAR 627NM HERED 6.8X19.9MM |
| DF3SGD | LIGHT BAR 565NM GREEN 6.8X19.9MM |
| DF3SRD | LIGHT BAR 660NM RED 6.8X19.9MM |
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| DEMO908AP64QSG | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DEMO908AP64 Quick Start Guide |
| DEMO908GZ60 | 功能描述:开发板和工具包 - S08 / S12 908GZ60 DEMO BOARD RoHS:否 产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor |
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