Debugging ShellΒΆ
The system provides a serial debugging shell on the RX/TX pins in the debugging connector. The serial configuration is 8N1 at 115200 baud, and the console requires an Enter
key press to be activated.
For Linux systems, Satlab recommends the tio
serial terminal application (https://tio.github.io/) but other applications such as minicom
should also work. When using the Satlab JTAG/serial adapter, the debug shell is typically available on /dev/ttyUSB1
.
A number of timestamped log messages are printed during boot from various logging groups. Additional logging can be enabled at runtime using the trace
commands. The help
command can be used to list available commands and their usage. The installed software version and build information is also printed in the debugging shell during boot.
satlab@satlab:~$ tio -b 115200 /dev/ttyUSB1
[tio 14:29:41] tio v1.28
[tio 14:29:41] Press ctrl-t q to quit
[tio 14:29:41] Connected
[ 0.000052] system: Copyright (c) 2016-2021 Satlab A/S <satlab@satlab.com>
[ 0.000217] system: boot: 1 reset cause: general reset
[ 0.000369] system: board serial #30808b36
[ 0.001049] prop: using stored cal properties
Satlab SRS-3 v1.0.0 (builder@builder) Aug 1 2018 12:00:00
[srs-3] help
Available commands:
csp CSP commands
help Show available commands
history Show previous commands
prop System configuration properties
reboot Reboot system
time Time command execution
tm Telemetry commands
trace Trace subcommands
uptime Show system uptime
watch Run command periodically
To show current telemetry values, run the tm show
command. The watch
command can be used to periodically run a command, with the -b
switch enabling screen blanking between updates. Press any key to stop the loop:
[srs-3] watch -b tm show
Running command 'tm show' every 1000 ms
Power Channels
Ethernet Off
Power Rails
VIN 5000.00 mV 110.00 mA 530.00 mW
VREG 3760.00 mV 130.00 mA 491.00 mW
3V3 3335.00 mV 143.00 mA 477.00 mW
Temperature Sensors
MCU 29.75 C
Power 29.56 C
LNA 29.25 C
PA 29.12 C
Transmitter
Frames 1000 Frames
Forward power 30.02 dBm
Reverse power 0.00 dBm
Receiver
Frames 1000 Frames
Last RSSI -89.50 dBm
Interrupted
Dynamic debugging messages can be enabled through the trace
command group. This can for example be used to log all received and transmitted CSP messages. To do so, run trace mask csp all
:
[srs-3] trace mask csp all
[ 55.551903] csp: INP: S 1, D 21, Dp 1, Sp 62, Pr 2, Fl 0x00, Sz 1 VIA: KISS
[ 55.552103] csp: SERVICE: Ping received
[ 55.552210] csp: OUT: S 21, D 1, Dp 62, Sp 1, Pr 2, Fl 0x00, Sz 1 VIA: KISS
Logging of all incoming and outgoing spacelink messages can also be enabled with trace mask rx info
and trace mask tx info
.