Specifications
Running a Packet Error Test from the CLI
A typical usage scenario for the nodetest application is the measurement of Packet Error Rate (PER). PER is defined in 802.15.4 as the
percentage of transmitted packets that are not detected correctly. The Nodetest application provides two commands rx and tx that are
designed to interoperate with each other across two nodes running this application.
PER measurement procedure:
1. Load the nodetest application on two EZR32LG nodes.
2. Set the radio to the desired channel on both nodes with the setchannel n command where "n" is the desired channel number in
hex.
3. Issue the rx command on the first node.
4. Issue the tx <hex value> command on the second node. (This command will transmit 10 (hex a) packets of the form required for
PER analysis. For actual PER analysis, send 1000 or more packets.)
5. Observe the PER result in the third column of the rx command output, for example:
Figure 3.6. PER Measurement
Quick Start Guide
RF Evaluation Using Nodetest
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