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ARM725A00
User Manual
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dresden elektronik ingenieurtechnik ARM725A02, ARM725A00 User Manual

User Manual Radio Modules
deRFarm7-15A02 / 15C02 deRFarm7-25A00 / 25C00
deRFarm7-25A02 / 25C02
Document Version V1.1 2011-12-22
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 2 of 38
Table of contents
1. Overview ......................................................................................................................... 5
2. Application ....................................................................................................................... 5
3. Features .......................................................................................................................... 6
4. Technical data ................................................................................................................. 8
5. Mechanical data ................................................................ ............................................ 10
5.1. Radio module (pluggable)..................................................................................... 10
5.2. Footprint receptacles ............................................................................................ 10
5.3. Radio module (solderable).................................................................................... 11
5.4. Footprint pads ...................................................................................................... 11
5.5. PCB design ................................................................ .......................................... 12
6. Soldering profile of deRFarm7 ....................................................................................... 13
7. Pin assignment .............................................................................................................. 14
7.1. External Pins ........................................................................................................ 17
7.2. Internal Connections ............................................................................................. 21
8. Programming ................................................................................................................. 22
8.1. Required hardware ............................................................................................... 22
8.2. Programming example ......................................................................................... 23
8.3. JTAG interface ..................................................................................................... 29
9. Debugging and tracing .................................................................................................. 29
10. RF components ............................................................................................................. 30
10.1. deRFarm7-15A02 / 15C02 .................................................................................... 30
10.2. deRFarm7-25A00 / 25C00 .................................................................................... 30
10.3. deRFarm7-25A02 / 25C02 .................................................................................... 31
11. Radio certification .......................................................................................................... 32
11.1. United States (FCC) ............................................................................................. 32
11.2. European Union (ETSI) ........................................................................................ 33
11.3. Approved antennas .............................................................................................. 34
12. Ordering information ...................................................................................................... 35
13. Revision notes ............................................................................................................... 37
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 3 of 38
Date
Version
Description
2011-02-10
1.0
Initial version
2011-12-22
1.1
Addition of PCB design Addition of transceiver signal description Update certification section
Firm
Division / Name
DE
APA
Firm
Division / Name
Author
DE
Dev. / APA
Check
release
Document history
Mailing list
Author / Check / Release
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 4 of 38
Abbreviation
Description
ADC
Analog to Digital Converter
BOD
Brownout-Detection
CE
Consumer Electronics
DAC
Digital to Analog Converter
DBGU
Debug Unit
ETH
Ethernet, family of frame-based computer networking technologies for local area networks (LAN).
EMAC
Ethernet Media Access Controller
ETSI
European Telecommunications Standards Institute
FCC
Federal Communications Commission
GPIO
Generals Purpose Input Output
ISM
Industrial, Scientific and Medical frequency band
JTAG
Joint Test Action Group
ISP
In-System-Programming
MAC
Medium (Media) Access Control
MCU, µC
Microcontroller Unit
PCB
Printed Circuit Board
PCBA
Printed Circuit Board Assembled
PWM
Pulse Width Modulation
RF
Radio Frequency
RMII
Reduced Media Independent Interface
SPI
Serial Peripheral Interface
TWI
Two-Wire Serial Interface
U[S]ART
Universal [Synchronuous/]Asynchronous Receiver Transmitter
USB
Universal Serial Bus
Abbreviations
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 5 of 38

1. Overview

The compact designed radio modules contains a powerful ARM7 microcontroller with 512 kBytes High-Speed Flash, On-chip USB 2.0 Full Speed Transceiver, Ethernet MAC 10/100 base-T in RMII-Mode and an onboard transceiver for 2.4 GHz or 868/915 MHz.
The 46 pin interface gives access to most hardware functions of the microcontroller. A long radio transmission range can be achieved by using the coaxial jack (U.FL) version
with an external antenna attached. In the Sub-GHz band several hundred meters (100 m = 330 feet) can be reached without problems. The 2.4 GHz version is able to cover up to 200 m (650 feet) with a ceramic chip antenna. All versions have a 128-bit AES encryption unit installed.
The 512 kB Flash and 128 kB RAM of the deRFarm7 modules provide enough resources to be used for any tasks within a wireless sensor network.

2. Application

The main applications for the deRFarm7 radio modules are:
2.4GHz IEEE 802.15.4 868MHz / 915MHz IEEE 802.15.4 ZigBee® Pro  ZigBee® RF4CE  ZigBee® IP  6LoWPAN Wireless Sensor Networks (WSN) industrial and home controlling and monitoring Gateway applications between IEEE 802.15.4 and other networks, e.g. Ethernet
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 6 of 38
AT91SAM7X512
JTAG
Chip
antenna
DBGU
3.0...3.6V
AT86RF212
SPI
VCC
UART
USB
ETH
TWI
AT91SAM7X512
JTAG
Coaxial
Connector
DBGU
3.0...3.6V
AT86RF212
SPI
VCC
UART
USB
ETH
TWI

3. Features

The Sub-GHz radio modules deRFarm7-15A00 / 15C00 offer the following features:
pluggable: 2 male connectors, 23 pins per row, 1.27mm pitch solderable: 23 pads per row, 1.27mm pitch RF shielding usable signals: power supply, peripheral, programming, debugging, tracing, ADC,
GPIO, USB, Ethernet MAC
application interfaces: 1 x UART, 1 x TWI, 1x USB, 1 x Ethernet-MAC Debug/Programming interfaces: 1 x SPI, 1 x JTAG Onboard chip-antenna and transceiver for 868/900 MHz Certification: FCC pending Compliant: CE, ETSI
Figure 1: block diagram deRFarm7-15A00 / 15C00
The radio modules deRFarm7-15A02 / 15C02 offer the same features like the deRFarm7-15A00 / 15C00 except the onboard Sub-GHz chip antenna is replaced by an U.FL coaxial receptacle for connecting an external antenna.
Figure 2: block diagram deRFarm7-15A02 / 15C02
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 7 of 38
AT91SAM7X512
JTAG
Chip
antenna
DBGU
3.0...3.6V
AT86RF231
SPI
VCC
UART
USB
ETH
TWI
AT91SAM7X512
JTAG
Coaxial
Connector
DBGU
3.0...3.6V
AT86RF231
SPI
VCC
UART
USB
ETH
TWI
The 2.4 GHz radio modules deRFarm7-25A00 / 25C00 offer the following features:
compact size: 30 x 22.7 mm (for 25A00) and 30 x 20.4 mm (for 25C00) pluggable: 2 male connectors, 23 pins per row, 1.27mm pitch solderable: 23 pads per row, 1.27mm pitch RF shielding usable signals: power supply, peripheral, programming, debugging, tracing, ADC,
GPIO, USB, Ethernet MAC
application interfaces: 1 x UART, 1 x TWI, 1x USB, 1 x Eth-MAC Debug/Programming interfaces: 1 x SPI, 1 x JTAG Onboard chip-antenna and transceiver for 2.4 GHz Certification: FCC pending Compliant: CE, ETSI
Figure 3: block diagram deRFarm7-25A00 / 25C00
The radio modules deRFarm7-25A02 / 25C02 offer the same features like the deRFarm7-25A00 / 25C00 except the onboard 2.4 GHz chip antenna is replaced by an U.FL coaxial receptacle for connecting an external antenna.
Figure 4: block diagram deRFarm7-25A02 / 25C02
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 8 of 38
Mechanical
Radio modules
Size (L x W x H)
30 x 22.7 x 8.2 mm 1 (for deRFarm7-15A02 / 25A00 / 25A02) 30 x 20.4 x 4.3 mm (for deRFarm7-15C02 / 25C00 / 25C02)
Connectors (only for pluggable variants)
number of headers
2
pins per header
23
pitch
1.27 mm
pin length
3.05 mm
pin diameter
0.51 mm
Insulator (L x W x H)
29.2 x 2.5 x 2.5 mm
Pins / Pads (pluggable and solderable variants)
pitch
1.27 mm
Temperature range
Min
Typ
Max
Unit
Working range
T_work
-40 +85
°C
Electrical (Vcc = 3.0VDC)
deRFarm7-15A02 / 15C02
Parameter
Min
Typ
Max
Unit
Supply Voltage
VCC
3.0
3.3
3.6
VDC
Current consumption
I_TXon (TX_PWR = +10 dBm)
52 mA
I_TXon (TX_PWR = +5 dBm)
46 mA
I_TXon (TX_PWR = 0 dBm)
43 mA
I_RXon
36 mA
I_Idle (Txoff, MCK = 12MHz)
21 mA

4. Technical data

Table 1: Mechanical data
1
unplugged radio module
Table 2: Temperature range
Table 3: Electrical data
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 9 of 38
I_Idle (Txoff, MCK = 48MHz)
38 mA
I_Sleep (depends on Sleep Mode)
250
µA
deRFarm7-25A00 / 25A02 / 25C00 / 25C02
Parameter
Min
Typ
Max
Unit
Supply Voltage
VCC
3.0
3.3
3.6
VDC
Current consumption
I_TXon (TX_PWR = +3 dBm)
38 mA
I_TXon (TX_PWR = +1 dBm)
37 mA
I_TXon (TX_PWR = -17 dBm)
32 mA
I_RXon
36 mA
I_Idle (Txoff, MCK = 12MHz)
21 mA
I_Idle (Txoff, MCK = 48MHz)
38 mA
I_Sleep (depends on Sleep Mode)
250
µA
Radio (Vcc = 3.3VDC)
deRFarm7-15A02 / 15C02
Parameter
Value
Unit
Frequency range
Channel 0 (EU)
868.3
MHz
Frequency range
Channel 1…10 (US)
906…924
MHz
Parameter
Min
Typ
Max
Unit
Transmitting power conducted
Channel 0; 20kBit/sec TX_PWR = +5dBm
5.0 dBm
Transmitting power conducted
Channel 1…10; 40kBit/sec TX_PWR = +10dBm
8.5 dBm
deRFarm7-25A00 / 25A02 / 25C00 / 25C02
Parameter
Value
Unit
Frequency range
Channel 11…26 (EU)
2405…2480
MHz
Parameter
Min
Typ
Max
Unit
Transmitting power conducted
Channel 11…26; 250kBit/sec TX_PWR = +3dBm
3.0 dBm
Table 4: Radio transmission data
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 10 of 38
22,7mm
30,0mm
20,4mm
0,65mm1,27mm

5. Mechanical data

5.1. Radio module (pluggable)

Used connectors: SAMTEC “TMS-123-02-L-S”
Figure 5: Size deRFarm7-15A02 / 25A00 / 25A02

5.2. Footprint receptacles

Used receptacles: SAMTEC “SLM-123-01-L-S”
Figure 6: Footprint receptacles 1.27mm pitch
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 11 of 38
20.4mm
30,0mm
21.4mm
1.0mm
1.0mm
0.27mm

5.3. Radio module (solderable)

Figure 7: Size deRFarm7-15C02 / 25C00 / 25C02

5.4. Footprint pads

Figure 8: Footprint for deRFarm7-15C02 / 25C00 / 25C02
User Manual Version 01.01 2011-12-22
Radio modules deRFarm7
dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Str. 12 01237 Dresden / Germany
Tel.: +49 351 – 31 85 00 Fax: +49 351 – 3 18 50 10 wireless@dresden-elektronik.de www.dresden-elektronik.de
Page 12 of 38
PCB
OK
PCB
PCB
No Ground
Plane

5.5. PCB design

The PCB design of the radio module base board and placement affects the radio characteris­tic. The radio module should be placed at the edge or side of a base board. The chip anten­na should be directed to PCB side.
Do not place ground areas below the radio module and near the chip-antenna.
If the base board with the radio module will be placed into a metal case, it is necessary to use the radio module variant with coaxial connector and an external antenna.
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