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03 LogicAnalyzer Firmware
The firmware has been built using the standard Pico SDK and Visual Studio Code. If you want to build yourself the project and don't have the SDK installed I recommend to use the pico setup for Windows, it makes the installation a breeze and leaves everything ready to build your projects. For other OS'es there are different ways to set-up the SDK, refer to the Pico "Getting started" document.
The firmware can be built in three "flavors": Pico, Pico-W without WiFi and Pico-W with WiFi.
To change which one is built you need to modify two files: the build settings file and the CMakeLists file.
This file contains the defines required to choose which version will be compiled:
//Configure the build settings
//#define BUILD_PICO_W
//#define ENABLE_WIFI
Uncomment as you need: for the regular Pico leave both commented, for the W but without WiFi support uncomment only the first define, and for the Pico-W with WiFi support uncomment both defines.
If you wonder why anyone would like to use the W without WiFi support, it's simple, to reduce the device power usage, you may want to use it with a laptop not connected to the mains per example and in that case enabling the WiFi support will be a waste of power which will reduce the battery duration.
This file contains a definition of the project build process and indicates which libraries are included. As the W functionality is based in an external module its usage requires the inclusion of a library.
Depending if you want to use it with or without WiFi the library is a different one (even if you don't want to enable the WiFi you need to include a library as the LED of the Pico is connected through this module) and it's configured in this file.
# Configure the correct cyw library based on what this is built for
# Regular pico: empty
# Pico W without WiFi support: pico_cyw43_arch_none
# Pico W with WiFi support: pico_cyw43_arch_lwip_poll
# set (CYW_LIB pico_cyw43_arch_lwip_poll)
# set (CYW_LIB pico_cyw43_arch_none)
Uncomment the one that you need if you're using the W, if not then leave these commented.