In order to get access to the CLI tool on macOS, you will need to right click on the of the updater tool and click Show Package Contents, then navigate to Contents/Resources, here you will find the pycom-fwtool-cli.
Linux
In the (and newer) version of the updater tool, pycom-fwtool-cli is installed in /usr/local/bin. In the package, the tool is extracted into folder ./pyupgrade
Usage
usage: pycom-fwtool-cli [-h] [-v] [-d] [-q] [-p PORT] [-s SPEED] [-c] [-x]
[--ftdi] [--pic] [-r]
{list,chip_id,wmac,smac,sigfox,exit,flash,copy,write,write_remote,wifi,pybytes,cb,nvs,ota,lpwan,erase_fs,erase_all}
...
Update your Pycom device with the specified firmware image file For more
details please see https://docs.pycom.io/chapter/advance/cli.html
positional arguments:
{list,chip_id,wmac,smac,sigfox,exit,flash,copy,write,write_remote,wifi,pybytes,cb,nvs,ota,lpwan,erase_fs,erase_all}
list Get list of available COM ports
chip_id Show ESP32 chip_id
wmac Show WiFi MAC
smac Show LPWAN MAC
sigfox Show sigfox details
exit Exit firmware update mode
flash Write firmware image to flash
copy Read/Write flash memory partition
write Write to flash memory
wifi Get/Set default WIFI parameters
pybytes Read/Write pybytes configuration
cb Read/Write config block
nvs Read/Write non volatile storage
ota Read/Write ota block
lpwan Get/Set LPWAN parameters [ EU868 US915 AS923 AU915]
erase_fs Erase flash file system area
erase_all Erase entire flash!
optional arguments:
-h, --help show this help message and exit
-v, --verbose show verbose output from esptool
-d, --debug show debuggin output from fwtool
-q, --quiet suppress success messages
-p PORT, --port PORT the serial port to use
-s SPEED, --speed SPEED
baudrate
-c, --continuation continue previous connection
-x, --noexit do not exit firmware update mode
--ftdi force running in ftdi mode
--pic force running in pic mode
-r, --reset use Espressif reset mode
How to use the Parameters
The CLI tool uses a combination of global and command specific parameters. The order of parameters is important to avoid ambiguity.
While pycom-fwtool-cli -h shows help for global parameters and a list of available commands, command specific parameters can be viewed using pycom-fwtool-cli [command] -h
The parameter -r, --reset has been added as a courtesy for users of 3rd party ESP32 products. This functionality is not supported by the Expansion Board 2.0 and may cause this tool to crash or hang in certain circumstances.
Global Parameters
`-h / --help` : shows above help (you can also get detailed help for each sub-command
`-v / --verbose` : show verbose output from esptool.
`-d / --debug` : show debug output from fwtool.
`-q / --quiet` : suppress most output, used for scripting
`-p / --port` : specifies the serial port to be used. Can also be set via **environment variable ESPPORT**
`-s / --speed` : specifies the serial speed to be used. Can also be set via **environment variable ESPBAUD**
`-c / --continuation` : continue previous connection in FTDI mode. This allows running multiple commands sequentially without having to reset the module. This option is ignored in PIC mode as the module can be reset via the serial connection.
`-x / --noexit` : This will prevent the PIC from leaving firmware update mode.
`--ftdi` : This will force the CLI updater to run in FTDI mode.
`--pic` : This will force the CLI updater to run in PIC mode.
`-r, --reset` : This will force the CLI updater to use Espressif's workaround to switch into Firmware update mode. This reset method is intended for 3rd party hardware only and is not supported by the Expansion Board 2.0
Commands
list
Get list of available serial ports ports.
usage: pycom-fwtool-cli list [-h]
optional arguments:
-h, --help show this help message and exit
This is the only command that does not require any additional parameters.
All other commands require that the serial port is specified either through the-p/--portoption or through environment variableESPPORT You can optionally specify the speed either through -s / --speed or via environment variable ESPBAUD. The default speed is 921600. The maximum speed for read operations on PIC based expansion boards & shields is 230400. The speed will be reduced automatically if necessary.
Special note for Expansion Board 2.0
You will need to have a jumper wire connected between G23 and GND to use any of the commands below. You will also need to press the reset button either before running each command or at least before running the first command. To avoid having to press the reset button again after each command, you can use the -c / --continuation option. The first command connecting to the device MUST NOT use the -c / --continuation option. This is to make sure a program called _stub_ is uploaded onto the device. This _stub_ cannot be uploaded more than once, so you need to tell the cli tool that the _stub_ is already running, which is done through using the -c / --continuation option.
chip_id
Shows the unique ID of the ESP32 on the connected module.
usage: pycom-fwtool-cli -p PORT exit [-h]
optional arguments:
-h, --help show this help message and exit
wmac
Shows the WiFi MAC of the connected module.
usage: pycom-fwtool-cli -p PORT wmac [-h]
optional arguments:
-h, --help show this help message and exit
smac
Shows the LPWAN MAC of the connected module.
usage: pycom-fwtool-cli -p PORT smac [-h]
optional arguments:
-h, --help show this help message and exit
sigfox
Show sigfox details
usage: pycom-fwtool-cli -p PORT sigfox [-h]
optional arguments:
-h, --help show this help message and exit
exit
If a Pysense/Pytrack/Expansion 3 has previously been left in firmware update mode by using the -x option, this command can be used to exit the firmware update mode.
usage: pycom-fwtool-cli -p PORT exit [-h]
optional arguments:
-h, --help show this help message and exit
flash
usage: pycom-fwtool-cli -p PORT flash [-h] [-t TAR]
optional arguments:
-h, --help show this help message and exit
-t TAR, --tar TAR perform the upgrade from a tar[.gz] file
copy
Read/Write flash memory partition from/to local file
usage: pycom-fwtool-cli -p PORT [-h] [-p PARTITION] [-f FILE] [-r] [-b]
optional arguments:
-h, --help show this help message and exit
-p PARTITION, --partition PARTITION
The partition to read/write (all, fs, nvs, factory,
secureboot, bootloader, partitions, otadata, fs1,
ota_0, config)
-f FILE, --file FILE name of the binary file (default: <wmac>-<part>.bin)
-r, --restore restore partition from binary file
-b, --backup backup partition to binary file (default)
write
Write to a specific location in flash memory.
usage: pycom-fwtool-cli -p PORT write [-h] [-a ADDRESS] [--contents CONTENTS]
optional arguments:
-h, --help show this help message and exit
-a ADDRESS, --address ADDRESS
address to write to
--contents CONTENTS contents of the memory to write (base64)
wifi
Get/Set default WiFi parameters.
usage: pycom-fwtool-cli wifi [-h] [--ssid SSID] [--pwd PWD] [--wob [WOB]]
optional arguments:
-h, --help show this help message and exit
--ssid SSID Set Wifi SSID
--pwd PWD Set Wifi PWD
--wob [WOB] Set Wifi on boot
pybytes
Read/Write pybytes configuration.
usage: pycom-fwtool-cli pybytes [-h] [--token TOKEN] [--mqtt MQTT] [--uid UID]
[--nwprefs NWPREFS] [--extraprefs EXTRAPREFS]
optional arguments:
-h, --help show this help message and exit
--token TOKEN Set Device Token
--mqtt MQTT Set mqttServiceAddress
--uid UID Set userId
--nwprefs NWPREFS Set network preferences
--extraprefs EXTRAPREFS
Set extra preferences
Note: The local pybytes_config.json file is overwritten when making any modifications using this command (requires Pybytes firmware 1.17.5.b6 or higher and Firmware updater 1.14.3).
cb
usage: pycom-fwtool-cli -p PORT cb [-h] [-f FILE] [-b] [-r]
optional arguments:
-h, --help show this help message and exit
-f FILE, --file FILE name of the backup file
-b, --backup backup cb partition to file
-r, --restore restore cb partition from file
If neither -b or -r is provided, the command will default to backup. If no file name is provided, <WMAC>.cb is used.
To backup your config block: $pycom-fwtool-cli -p PORT cb
To restore your config block: $pycom-fwtool-cli -p PORT cb -r -f backup.cb
nvs
Read/Write non-volatile storage.
usage: pycom-fwtool-cli -p PORT nvs [-h] [-f FILE] [-b] [-r]
optional arguments:
-h, --help show this help message and exit
-f FILE, --file FILE name of the backup file
-b, --backup backup cb partition to file
-r, --restore restore cb partition from file
If neither -b or -r is provided, the command will default to backup. If no file name is provided, <WMAC>.nvs is used.
To backup your NVS: $ pycom-fwtool-cli -p PORT nvs
To restore your NVS: $ pycom-fwtool-cli -p PORT nvs -r -f backup.nvs
ota
Read/Write ota block, this contains data relating to OTA updates such as the hash of the OTA firmware.
usage: pycom-fwtool-cli ota [-h] [-f FILE] [-b] [-r]
optional arguments:
-h, --help show this help message and exit
-f FILE, --file FILE name of the backup file
-b, --backup backup cb partition to file
-r, --restore restore cb partition from file
If neither -b nor -r is provided, the command will default to backup. If no file name is provided, <WMAC>.ota is used.
To backup your OTA block: $pycom-fwtool-cli -p PORT ota
To restore your OTA block: $pycom-fwtool-cli -p PORT ota -r -f backup.ota
lpwan
usage: pycom-fwtool-cli -p PORT lpwan [-h] [--region REGION]
optional arguments:
-h, --help show this help message and exit
--region REGION Set default LORA region
--erase_region Erase default LORA region
--lora_region Output only LORA region
erase_fs
Erase flash file system area. This is useful if some code running on the device is preventing access to the REPL.
usage: pycom-fwtool-cli -p PORT erase_fs [-h]
optional arguments:
-h, --help show this help message and exit
erase_all
Erase entire flash, only use this if you are sure you know what you are doing. This will remove your devices lpwan mac addresses etc.
usage: pycom-fwtool-cli erase_all [-h]
optional arguments:
-h, --help show this help message and exit
Writes firmware image to flash, must be as a .tar(.gz) file as provided by Pycom. These files can be found on .
Read/Write config block (LPMAC, Sigfox PAC & ID, etc.). You can find the structure of this block
Get/Set LPWAN parameters saved to non-volatile storage. Please see for more details.
