DR7003-DK RFM, DR7003-DK Datasheet - Page 5

• Manufacturer Part Number: DR7003-DK
• Description: 3G DEVELOPMENT KIT 303.825 MHZ
• Manufacturer: RFM
• Type: Transceiverr

Specifications of DR7003-DK

• Frequency: 303.825MHz
• For Use With/related Products: DR7003
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 583-1047

RF Monolithics, Inc.
Rev1
2.6 USB Port
2.4 LEDs
2.5 RESET Button
There are five (5) total LED’s (Refer to Figure 4) used for visual indication of:
When the development board is initially powered on, by switching SW1 to the “ON” position, and the
microcontroller voltage supply is stable the four LED’s, D1, D2, D3, and D4, will light up in sequence. After
the initial sequence, the system “heartbeat” LED will flash, indicating that the system is alive. If the
“heartbeat” stops flashing, the microcontroller is not executing internal firmware code and the system is not
functioning.
The RESET button is used to reset the microcontroller and the TRXXXX device. When the RESET button
is pressed, it pulls the nRST line on the microcontroller ‘low’ which also resets the TRXXXX device. At this
point the TRXXXX device is configured to its initial second generation (2G) power-on state.
All communication between the 3G evaluation software and the development kit are accomplished through
the USB port. The development board may also be powered exclusively through the USB port. No
external power source is needed. The development board uses a USB-to-UART converter IC to translate
USB transactions into UART protocol. When the 3G evaluation software is installed, drivers that convert
serial USB data into serial UART data are also installed. This is transparent to the user. The USB
connection can be viewed as a simple RS232 UART running over a USB connection.
When the USB port is connected, a Green LED will light indicating that a connection is established and
ready for power-up. Refer to Figure 6.
1. Power (USB) - Green
2. System heartbeat - Yellow
3. Serial traffic - Amber
4. Data transmit (TX) – Green
5. Data packet error – Red
System Heartbeat
[phone] toll-free in U.S. and Canada
Figure 4. LED Indicators
Figure 5. RESET Button
www.rfm.com
Serial (COM) Traffic Indicator
TX Packet Indicator
Error Packet Indicator
Email: [e-mail]
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