Connectivity Test
MC1322x SMAC Demonstration Application User’s Guide, Rev. 1.3
Freescale Semiconductor
3-11
Figure 3-16. Reception Mode
The PER-TX board setup follows a procedure similar to the PER-RX board setup. Place the PER-TX board
on the same channel as the PER-RX going through the Connectivity Test Menus. This ensures that the
PER-TX board is on the same channel as the PER-RX board. Set PER-TX board to place the application
into TX mode. The PER-TX application turns on LEDs 1 through 4 in order to show that the PER-TX
board is in Packet Transmit Mode and then it begins to transmit packets.
3.5.2
PER operation
Since the PER-TX board and the PER-RX board are on the same channel and the PER-RX board started
to listen before the PER-TX board sent any packets, the PER-RX board will toggle LED1 when a packet
is being received. Then the PER-TX board blinks LED1 on every packet that is transmitted. If both boards
are blinking, then both boards are on the same channel. If only the PER-TX board is toggling LED1, then
either the PER-RX board is not in Listen Mode or it is listening to the wrong channel. If this occurs, reset
both boards and try the procedure again without switching channels. If a packet is received, the radio
echoes data to the PC through the UART connection as shown in
Figure 3-17
.
•
N represents the number of packets received
•
L is the length of the packet
•
LQI is the Link Quality Indicator (measured in dBm)
•
CRC indicates if the Cyclical Redundancy Check (CRC) is good
•
Data is the hex formatted payload