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ARM725A00
User Manual
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dresden elektronik ingenieurtechnik ARM725A02, ARM725A00 User Manual

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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.
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 13 of 38
Profile Feature
Values
Average-Ramp-up Rate (217°C to Peak)
3°C/sec max.
Preheat Temperature 175°C ±25°C
120 sec. max
Temperature Maintained Above 217°C
60 sec.
Time within 5°C of Actual Peak Temperature
20 sec. to 40 sec.
Peak Temperature Range
260°
Ramp-down Rate
6°C/sec max.
Time 25°C to Peak Temperature
8 min. max.
40
60
80
100
120
140
160
180
200
220
240
260
280
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
t [s]
T [°C]
Measured Temp. Zone Temp.

6. Soldering profile of deRFarm7

Table gives the soldering profile for the radio modules.
Table 5: Soldering Profile
Figure 9 shows a recorded soldering profile for a radio module. The blue colored line illus­trates a temperature sensor placed next to the soldering-contacts of the radio module. The pink line shows the set temperatures depending on the zone within the reflow soldering ma­chine.
Figure 9: Recorded soldering profile
A solder process without supply of nitrogen causes a discoloration of the metal RF-shielding.
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 14 of 38

7. Pin assignment

Both pin headers respectively pin contacts provide the most important signals to the custom­er: power supply, peripheral, programming, debugging, tracing, analog measurement and free programmable ports. All provided signals except VCC, GND, RSTN, JTAGSEL, TDI, TDO, TCK, TMS, USBDM, USBDP and ADVREF are free programmable port pins (GPIO).
Figure 10: Top overlay deRFarm7-15A02
Figure 11: Top overlay deRFarm7-25A00
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 15 of 38
coming soon
Figure 12: Top overlay deRFarm7-25A02
Figure 13: Top overlay deRFarm7-15C02
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 16 of 38
coming soon
coming soon
Figure 14: Top overlay deRFarm7-25C00
Figure 15: Top overlay deRFarm7-25C02
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 17 of 38
Pin assignment
Pin
µC-Port
Pin
µC-Port
1
VCC
24
VCC
2
GND
25
GND
3
ADVREF
26
PA27/DRXD/PCK3
4
USBDM
27
PA0/RXD0
5
RSTN
28
PA28/DTXD
6
PB3/ETX1
29
PA4/CTS0/SPI1_NPCS3
7
PA11/TWCK
30
PB9/EMDIO
8
PB26/TIOB1/RI1
31
PB21/PWM2/PCK1
9
PA10/TWD
32
USBDP
10
PA1/ TXD0
33
PB19/PWM0/TCLK1
11
PB25/TIOA1/DTR1
34
PB27/TIOA2/PWM0/AD0
12
PB2/ETX0
35
PA14/SPI0_NPCS2/IRQ1
13
PA18/SPI0_SPCK
36
PB28/TIOB2/PWM1/AD1
14
PA3/RTS0/SPI1_NPCS2
37
PB5/ERX0
15
PA17/SPI0_MOSI
38
TCK
16
PB0/ETXCK/EREFCK
39
PB7/ERXER
17
PA16/SPI0_MISO
40
TMS
18
PB8/EMDC
41
PB1/ETXEN
19
PB6/ERX1
42
TDO
20
PB18/EF100/ADTRG
43
JTAGSEL
21
PB15/ERXDV/ECRSDV
44
TDI
22
GND
45
GND
23
GND
46
GND

7.1. External Pins

Table 6, Table 7 and Table 8 shows the external available signals of deRFarm7 radio mod­ules.
Table 6: Pin assignment of deRFarm7 – radio module family
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 18 of 38
Description of available I/O port pins on header pins
I/O port pin
Alternate function (signal name)
Comments
PA0
RXD0
PA1
TXD0
PA3
RTS0
PA4
CTS0
PA10
TWD
PA11
TWCK
PA14
IRQ1
PA16
SPI0_MISO
PA17
SPI0_MOSI
PA18
SPI0_SPCK
PA27
DRXD
PCK3
PA28
DTXD
PB0
ETXCK/EREFCK
PCK0
PB1
ETXEN
PB2
ETX0
PB3
ETX1
PB5
ERX0
PB6
ERX1
PB7
ERXER
PB8
EMDC
PB9
EMDIO
PB15
ERXDV/ECRSDV
PB18
EF100
ADTRG
PB19
PWM0
TCLK1
PB21
PWM2
PCK1
PB25
TIOA1
DTR1
PB26
TIOB1
RI1
PB27
TIOA2
PWM0
AD0
PB28
TIOB2
PWM1
AD1
Table 7: Description of available I/O port pins
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 19 of 38
Signal name
Function
Type
Active Level
Comments
Power
VCC
Voltage Regulator Power Supply Input
Power
3.0V to 3.6V GND
Ground
JTAG
TCK
Test Clock
Input
On-board Pull-up
TDI
Test Data In
Input
On-board Pull-up
TDO
Test Data Out
Output
TMS
Test Mode Select
Input
On-board Pull-up
JTAGSEL
JTAG Selection
Input
On-Board Pull-down
Debug Unit
DRXD
Debug Receive Data
Input
DTXD
Debug Transmit Data
Output
Reset
RSTN
Microcontroller Reset
I/O
Low
Pull-Up resistor
Clocks, Oscillators
PCK0 - PCK3
Programmable Clock Output
Output
U[S]ART
TXD0
Transmit Data
I/O
RXD0
Receive Data
Input
RTS0
Request To Send
Output
CTS0
Clear To Send
Input
DTR1
Data Terminal Ready
Output
RI1
Ring Indicator
Input
Timer/Counter and PWM Controller
TIOA1 – 2
I/O Line A
I/O
TIOB1 – 2
I/O Line B
I/O
TCLK1
External Clock Inputs
Input
PWM Controller
PWM0 - 2
PWM Channels
Output
Interrupt
Table 8: Signal description list
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 20 of 38
Signal name
Function
Type
Active Level
Comments
IRQ1
External Interrupt Inputs
Input
SPI
SPI0_MISO
Master In / Slave Out
I/O
SPI0_MOSI
Master Out / Slave In
I/O
SPI0_SPCK
SPI Serial Clock
I/O
SPI0_NPCS2
SPI Peripheral Chip Select 2
Output
Low
SPI1_NPCS2
SPI Peripheral Chip Select 2
Output
Low
SPI1_NPCS3
SPI Peripheral Chip Select 3
Output
Low
Two-Wire-Interface
TWD
Two-Wire Serial Interface Data
I/O
TWCK
Two-Wire Serial Interface Clock
I/O
USB Device Port
USBDM
USB Device Port Data -
Analog
USBDP
USB Device Port Data +
Analog
Analog-to-Digital Converter
AD0 – AD1
Analog Inputs
Analog
Digital pulled-up in­puts at reset
ADTRG
ADC Trigger
Input
ADVREF
ADC Reference
Analog
Ethernet MAC 10/100 (RMII Mode)
ETXCK/ EREFCK
Reference Clock
Input
RMII only ETXEN
Transmit Enable
Output
ETX0 – ETX1
Transmit Data
Output
ERX0 – ERX1
Receive Data
Input
ERXER
Receive Error
Input
EMDC
Management Data Clock
Output
EMDIO
Management Data Input/Output
I/O
ERXDV/ ECRSDV
Carrier Sense and Data Valid
Input
RMII only EF100
Force 100 Mbits/sec.
Output
High
RMII only
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 21 of 38
Pin assignment of ATSAM7X512 to AT86RF212 / AT86RF231
µC­Pin
µC-Port
TRX­Pin
TRX­Port
Type
Comments
D1
PA23/TD/SPI1_MOSI
22
MOSI
Input
Master Out / Slave In
D2
PA24/RD/SPI1_MISO
20
MISO
Output
Master In / Slave Out
A1
PA22/TK/SPI1_SPCK
19
SCLK
Input
SPI Serial Clock
A2
PA21/TF/SPI1_NPCS0
23
SEL
Input
SPI Select
J1
PA29/FIQ/SPI1_NPCS3
24
IRQ
Output
1. Interrupt request signal
2. Frame Buffer Empty Indicator
H7
PA9/CTS1
8
RSTN
Input
Reset
C10
PA15/TCLK2
17
CLKM
Output
Master clock signal output, in­ternal lowpass filter assembled
H8
PA8/RTS1
11
SLP_TR
Input
Controls sleep, transmit start, receive states
F2
PB23/TIOA0/DCD1
10
DIG2
Output
1. Antenna Diversity RF switch control
2. RX Frame Time Stamping

7.2. Internal Connections

Table 9 shows the internal signal connection between MCU and transceiver. This description is valid for all deRFarm7 radio modules.
Table 9: Internal connection of MCU and Transceiver
Note: For best radio performance results it is recommended to deactivate the clock output. Accord­ing to transceiver datasheet register 0x03 must be set to value 0x00 to deactivate CLKM.
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1

8. Programming

8.1. Required hardware

Dresden elektronik ingenieurtechnik gmbh offers the hardware components for a fast startup. The following hardware setups are possible:
deRFarm7 radio module deRFgateway or deRFnode (baseboard) SEGGER SAM-ICE1 similar programmer
For example, to exchange the firmware of an ARM-based radio module, use the Atmel SAM­ICE JTAG Emulator. The programmer has to be plugged to the baseboard which is DC- or USB-powered.
Figure 16: SAM-ICE connected with baseboard plus plugged radio module
The SEGGER SAM-ICE programmer will not be offered by dresden elektronik ingenieurtechnik
gmbh
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8.2. Programming example

The described programming examples was done with Atmel‟s programming software „SAM­BA v2.10‟, which is free downloadable on Atmel homepage. Install SAM-BA v2.10 on the PC or Laptop and connect the hardware described in section 8.1.
1. Start SAM-BA v2.10 The start screen (Figure 17) shows two selection tables. At first choose the connect­ed SEGGER-SAM-ICE programmer (Figure 18) and then the connected board (Figure 19). In this case the assembled MCU is important for selection, that means choose AT91SAM7X512-EK.
Figure 17: SAM-BA start screen
Figure 18: SAM-BA start screen – Choose programmer
Figure 19: SAM-BA start screen – Choose MCU
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2. Click „CONNECT‟ to get to the SAM-BA main screen (Figure 20) If there appears an error message, check if the target board is supplied via USB and/or DC and if the JTAG cable is plugged in the right polarization.
Figure 20: SAM-BA main screen
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3. Before programming the MCU flash, it is necessary to erase the internal flash. Select the script „ERASE ALL FLASH‟ and click „EXECUTE‟ (Figure 21). Be careful: the whole internal flash content will be deleted.
Figure 21: SAM-BA erasing the internal flash
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4. After erasing the flash content choose the binary file which must be flash on target
MCU. Click on the „OPEN DIRECTORY‟ button in the “DOWNLOAD/UPLOAD FILE‟
section next to „SEND FILE NAME‟ (Figure 22). Click on „SEND FILE‟ button to flash
the binary.
Figure 22: SAM-BA choosing binary
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5. After flashing the binary SAM-BA asked for locking the flash content. Click „NO‟ (Figure 23).
Figure 23: SAM-BA lock regions
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6. The last action is to set the GPNVM2 bit in the boot from flash mode. Just select and execute the script „BOOT FROM FLASH‟ (Figure 24).
Figure 24: SAM-BA boot from flash
7. Close SAM-BA, disconnect the SEGGER-SAM-ICE programmer and re-power the target. The new MCU firmware starts now from the internal flash.
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8.3. JTAG interface

All deRFarm7 variants are programmable over JTAG interface (TDI, TDO, TCK, TMS). The radio module contains all necessary pull-up resistors onboard. Use the pin configuration shown in Figure 25 to connect the radio module to a suitable ARM programmer like the SEGGER SAM-ICE.
Figure 25: ARM JTAG interface

9. Debugging and tracing

Debugging and tracing of the radio module is possible with the RS232-Level-Shifter. This component is offered by dresden elektronik ingenieurtechnik gmbh. The used pin connection to connect the radio module to a suitable debug and trace hardware is shown in Figure 26.
Figure 26: Debug interface
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10. RF components

10.1. deRFarm7-15A02 / 15C02

The U.FL coaxial connector contains a filter network:
L2 = 10nH (0402) C1 = 4.7pF (0402) C3 = 4.7pF (0402)
Figure 27: Filter network of deRFarm7-15A02

10.2. deRFarm7-25A00 / 25C00

The chip antenna on the deRFarm7-25A00 is matched with:
L1 = 1.0nH (0402) L2 = 2.2nH (0402)
Figure 28: Matching network of deRFarm7-25A00
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10.3. deRFarm7-25A02 / 25C02

The U.FL coaxial connector contains a filter network:
L2 = 1.0pF (0402) (assembly variant of deRFarm7-25A00) C19 = 22pF (0402)
Figure 29: Matching network of deRFarm7-25A02
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FCC-ID: XVV-ARM725A00
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.
FCC-ID: XVV-ARM725A02
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.
FCC-ID: XVV-ARM715A02
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.

11. Radio certification

11.1. United States (FCC)

The deRFarm7-15A02, deRFarm7-25A00, deRFarm7-25A02, deRFarm7-15C02, deRFarm7­25C00, deRFarm7-25C02 radio modules comply with the requirements of FCC part 15.
To fulfill FCC Certification requirements, an OEM manufacturer must comply with the follow­ing regulations:
The modular transmitter must be labeled with its own FCC ID number, and, if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module.
This exterior label can use wording such as the following. Any similar wording that expresses the same meaning may be used.
Sample label for radio module deRFarm7-25A00 and deRarm7-25C00:
Sample label for radio module deRFarm7-25A02 and deRarm7-25C02:
Sample label for radio module deRFarm7-15A02:
Note: The radio modules deRFarm7-15C02, deRFarm7-25C00 and deRFarm7-25C02 fulfill a Permissive Change Class 1 regarding to FCC Section 2.1043 and complies with the re­quirements of FCC part 15.
To be used with the deRFarm7-15A02, deRFarm7-25A02 modules, the external antenna have been tested and approved which is specified in here below. The deRFarm7-15A02, deRFarm7-25A02 modules may be integrated with other custom design antennas which OEM installer must authorize following the FCC 15.21 requirements.
The Original Equipment Manufacturer (OEM) must ensure that the OEM modular transmitter is labeled with its own FCC ID number. This includes a clearly visible label on the outside of the final product enclosure that displays the contents shown below. If the FCC ID is not visi-
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Page 33 of 38
ble when the equipment is installed inside another device, then the outside of the device into which the equipment is installed must also display a label referring to the enclosed equip­ment.
This equipment 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 15.19). The internal / external antenna(s) used for this mobile transmitter must provide a separation distance of at least 20 cm from all persons and must not be co-located or oper­ated in conjunction with any other antenna or transmitter.
Installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. This device is approved as a mobile de­vice with respect to RF exposure compliance, and may only be marketed to OEM installers. Use in portable exposure conditions (FCC 2.1093) requires separate equipment authoriza­tion.
Modifications not expressly approved by this company could void the user's authority to operate this equipment (FCC section 15.21).
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasona­ble protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful inter­ference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense (FCC section 15.105).

11.2. European Union (ETSI)

The deRFarm7-15A02, deRFarm7-15C02, deRFarm7-25A00, deRFarm7-25C00, deRFarm7­25A02 and deRFarm7-25C02 modules have been tested compliant for use in European Un­ion countries.
If the deRFarm7-15A02, deRFarm7-15C02, deRFarm7-25A00, deRFarm7-25C00, deR­Farm7-25A02 and deRFarm7-25C02 modules are incorporated into a product, the manufac­turer must ensure compliance of the final product to the European harmonized EMC and low­voltage/safety standards. A Declaration of Conformity must be issued for each of these standards and kept on file as described in Annex II of the R&TTE Directive.
The manufacturer must maintain a copy of the deRFarm7-15A02, deRFarm7-15C02, deR­Farm7-25A00, deRFarm7-25C00, deRFarm7-25A02 and deRFarm7-25C02 modules docu­mentation and ensure the final product does not exceed the specified power ratings, antenna specifications, and/or installation requirements as specified in the user manual. If any of the­se specifications are exceeded in the final product, a submission must be made to a notified body for compliance testing to all required standards.
The “CE“ marking must be affixed to a visible location on the OEM product. The CE mark shall consist of the initials "CE" taking the following form:
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Approved antenna(s) and accessory
Part number
Description
Manufacturer
Gain [dBi]
Min. Separation [cm]
ANT-916-CW­HWR-RPS
½ wave whip antenna (915 MHz) with RP-SMA-Connector
Antenna Factor
0
20
PSKN3-2400RS
½ wave whip antenna (2450 MHz) with RP-SMA-Connector
Mobile Mark
2.3
20 BN-032125
U.FL to RP-SMA pigtail, 15 cm
Hirose / Profineon
-0,35
If the CE marking is reduced or enlarged, the proportions given in the above graduat-
ed drawing must be respected.
The CE marking must have a height of at least 5mm except where this is not possible
on account of the nature of the apparatus
The CE marking must be affixed visibly, legibly, and indelibly.
More detailed information about CE marking requirements you can find at "DIRECTIVE 1999/5/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL" on 9 March 1999 at section 12.

11.3. Approved antennas

The deRFarm7-25A00 has an integrated chip antenna. The design is fully compliant with all regulations.
The deRFarm7-15A02 has been tested and approved for use with the antenna listed below. The module may be integrated with other custom design antennas which OEM installer must authorize with respective regulatory agencies. The used antenna was connected to the radio module with a 15cm “U.FL-to-SMA pigtail”.
Table 10: Approved antenna(s) and accessory
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deRF xxxx - x x x xx x
Revision Features Size Flash Memory Frequency Range Product / Chipset
Product name code
Information
Code
Explanation
Comments
Product / Chipset
arm7
AT91SAM7X
radio module
Frequency range 1
780/868/915 MHz
2
2.4 GHz
Flash memory
5
512 kByte
Size A
30 x 22.7 mm
pluggable
C
30 x 20.4 mm
solderable
Features 00
chip antenna
onboard
02
coaxial connector
onboard U.FL
Revision <blank>
Rev 0
1 Rev 1

12. Ordering information

The product name includes the following information:
Table 11: product name code
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Ordering information
Part number
Product name
Comments
coming soon
deRFarm7-15A00
pluggable Sub-GHz radio module with onboard chip antenna
coming soon
deRFarm7-15C00
solderable Sub-GHz radio module with onboard chip antenna
BN-030974
deRFarm7-15A02
pluggable Sub-GHz radio module with onboard U.FL coaxial connector
coming soon
deRFarm7-15C02
solderable Sub-GHz radio module with onboard U.FL coaxial connector
BN-027264
deRFarm7-25A00
pluggable 2.4-GHz radio module with onboard chip antenna
coming soon
deRFarm7-25C00
solderable 2.4-GHz radio module with onboard chip antenna
BN-027265
deRFarm7-25A02
pluggable 2.4-GHz radio module with onboard U.FL coaxial connector
coming soon
deRFarm7-25C02
solderable 2.4-GHz radio module with onboard U.FL coaxial connector
Table 12: ordering information
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13. Revision notes

Up to now for the deRFarm7-15A02, deRFarm7-25A00, deRFarm7-25A02, deRFarm7­15C02, deRFarm7-25C00 and deRFarm7-25C02 radio modules technical problems, mal­functions or any other critical issues are not known.
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dresden elektronik ingenieurtechnik gmbh Enno-Heidebroek-Straße 12 D-01237 Dresden
Tel. +49 351 - 31 85 00 | Fax +49 351 - 318 50 10 E-Mail wireless@dresden-elektronik.de General manager: Dipl.-Ing. L. Pietschmann Commercial Registry: HRB 749 Dresden Municipal Court Tax number: 201/107/00726 Sales tax identification number: DE 140125678
Trademarks and acknowledgements
• ZigBee® is a registered trademark of the ZigBee Alliance.
• 802.15.4 is a trademark of the Institute of Electrical and Electronics Engineers (IEEE).
These trademarks are registered by their respective owners in certain countries only. Other brands and their products are trademarks or registered trademarks of their respective hold­ers and should be noted as such.
Disclaimer
This note is provided as-is and is subject to change without notice. Except to the extent pro­hibited by law, dresden elektronik ingenieurtechnik gmbh makes no express or implied war­ranty of any kind with regard to this guide, and specifically disclaims the implied warranties and conditions of merchantability and fitness for a particular purpose. dresden elektronik in­genieurtechnik gmbh shall not be liable for any errors or incidental or consequential damage in connection with the furnishing, performance or use of this guide. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or any means electronic or mechanical, including photocopying and recording, for any purpose other than the purchaser‟s personal use, without the written permission of dres­den elektronik ingenieurtechnik gmbh.
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