Test T2: Verify Range of the Transmission

MSD P11207 Test Plan 1/5/11

Test T2: Verify Range of the Transmission

Objective

Engineering Specs Tested: ES2

This test will verify the reliability of the communication link at a transmission distance of 100 meters marginal, 200 meters ideal.

Equipment Required

2 laptop computers running Windows

2 copies of TI SmartRF Studio software

2 copies of TI SmartRF Flash Programmer

2 USB cables (Type A to Type B)

2 TI CC Debuggers

2 Mid-Range RF modules

Laser Measure Tool (or measuring wheel)

Location

Gordon Field House Track (RIT Campus)

Procedure

Note: All the files needed during this procedure can be found on the Edge website of Project 11207, under MSD II/Test Plan/ Test Plan Files

1.  Place laptops 100 meters apart, 1 meter from the ground, with a clear line of sight

2.  Connect each module to respective laptop via USB cable (for 5V power supply)

3.  Connect each module to respective laptop via CC Debugger (for data communication)

4.  On both computers, run TI Smart RF Flash Programmer:

Figure 1: Smart RF Flash Programmer

a.  In the System on Chip Window, select your device, which should have the Chip Type CC1111

b.  In the section Flash image, Select the file “Range_Test.hex”

c.  In the section actions, select “Erase, Program and Verify”

d.  Click on “Perform actions”

e.  Close Flash Programmer

f.  Repeat with the second module

5.  Power on laptop “A” (Transmitter), and run Texas Instruments SmartRF Studio 7 software.

Figure 2: Smart RF Studio First Window

a.  Select CC1111

Figure 3: Smart RF Studio TX Window

b.  In the new window, Select “Expert Mode”

c.  Select the Field “Packet TX” in the bottom of the window

d.  Open file configuration “Range_Test_TX_Configuration.srfs” (File/Open Cfg)

6.  Power on laptop “B” (Receiver), and run also Texas Instruments Smart RF Studio.

a.  Select CC1111

b.  In the new window, Select “Expert Mode”

c.  Select the Field “Packet TX” in the bottom of the window

d.  Open file configuration “Range_Test_RX_Configuration.srfs” (File/Open Cfg)

e.  In the field Dump Data to file, Click on the button “…” and select a desired path to create a file which we will name “TestRange.txt”

Figure 4: Smart RF Studio RX Window

f.  Click on the Start Button

7.  On laptop “A” start the transmission of the packets by clicking on the button “Start”

Figure 5: Start Button

8.  Run the transmission until all the packets are sent (Total number indicated in the field: “Packet Count”)

9.  When the transmission is done, on laptop B run the Program “ExtractBER” and follow the instructions to display the calculated BER from the file “TestRange.txt” previously created.

10.  Record the BER and repeat steps 1-9 with a distance of 200 meters

Results

Date: _____1/31/10______Engineer Initials: ____RT______

Pass / Fail Criteria: Bit Error Rate must be less than or equal to 0.5% at 100m

Observed Bit Error Rate (BER) at 100 m: ______0.0______% Result: Pass £ / Fail £

Observed Bit Error Rate (BER) at 200 m: ______0.0______%