1 -------------------------------------------------------------------------------
3 -------------------------------------------------------------------------------
5 This directory contains a capture of the communication between a custom sensor
6 mote board [1] and a Microchip MRF24J40MA IEEE 802.15.4 transceiver module.
8 It is not nearly a complete sample of what types of traffic are possible,
9 it does not have any examples of cyclic mode, it doesn't even contain RX
10 packets, other than an ACK.
12 [1] The board used is available here:
13 https://github.com/karlp/karlnet/tree/master/nodes/boxcar
19 The logic analyzer used was a generic Saleae Logic clone (at 16MHz).
21 The same configuration was used for all captures.
24 -------------------------
26 1 INT Signals the host MCU
34 mrf24j40-reset-wakeup.sr
35 ------------------------
37 Capture of power-on behaviour resetting the radio and rewriting its config
38 as per the datasheet recommendations.
40 The sigrok command line used was:
42 sigrok-cli -d fx2lafw --config samplerate=16M:captureratio=2 \
43 --time 10ms -o mrf24j40-reset-wakeup.sr -t nCS=f \
44 --channels 0=nRESET,1=INT,2=SDI,3=SCK,4=SDO,5=nCS,6=VDD
47 mrf24j40-wake-tx-ack.sr
48 -----------------------
50 Captures the host MCU waking the radio, sending a packet, and checking the
51 interrupt flags for an ACK. The sequence is not necessarily optimal, but
54 The sigrok command line used was:
56 sigrok-cli -d fx2lafw --config samplerate=16M:captureratio=70 \
57 --time 20ms -o mrf24j40-wake-tx-ack.sr -t INT=r \
58 --channels 0=nRESET,1=INT,2=SDI,3=SCK,4=SDO,5=nCS,6=VDD