SudoMaker / PICo24

Ultimate software platform for Microchip PIC24/dsPIC33 MCUs

PICo24

Ultimate software platform for Microchip PIC24/dsPIC33 MCUs.

Features

CMake support

• You can use your favorite IDE or editor, as long as it supports CMake
• Tested on CLion and Sublime Text (VSCode users please see this issue)

The PICoBoot USB bootloader

• Updates firmware directly via USB
• No driver installation needed on modern host OS (Linux/macOS/Windows)
• fastboot like command line tool
• Non-volatile environment variable (like U-Boot)
• Preinstalled on every PotatoPi PICo24

Easy to use peripheral libraries

• Work like STM32 HAL APIs
• Macro based pin configuration
• Supports transferring data in EDS memory regions directly to peripherals

USB Device features

• Supported functions: CDC ACM/ECM/NCM, Mass Storage, Audio, HID and MIDI
• Multiple functions and multiple function instances at the same time (e.g. 4xACM+1xStorage)

USB Host features

• HUB support
• Supported functions: CDC ACM, Mass Storage, Audio, HID and UVC

libc extensions

• malloc can track memory usages, and also allocate in EDS memory regions

Unix API emulation

• Emulation of Unix APIs such as read/write/sleep/usleep/dprintf
• They can be used to control data flows on UART and USB CDC, and switch RTOS task automatically when I/O is blocked

Integrated 3rdparty software libraries

• FreeRTOS 9.0.0
• LwIP 2.1.1
• Lua 5.1.5

Current status

Due to shortage of raw materials of PotatoPi Lite, PotatoPi PICo24 had to be released prematurely to fill the gap. So, not all software features mentioned above are implemented at this moment.

Feature	Status
PinMux	OK
Timer	OK
UART	OK, CTS/RTS untested
I2C Master	OK, API not finalized
I2C Slave	Untested
SPI Master	OK
SPI Slave	Untested
External interrupts	Untested
malloc stats	OK
EDS malloc	OK
EDS string.h ops	OK
Unix APIs	OK, currently requires FreeRTOS
USB role switch	OK
USB Device: HID	OK
USB Device: MSD	OK
USB Device: MIDI	OK
USB Device: Audio	Mostly, currently TX only
USB Device: CDC ACM	OK
USB Device: CDC ECM	Mostly
USB Device: CDC NCM	Mostly, only works with Linux
USB Host: HUB	WIP: unstable change notification
USB Host: HID	WIP: 1 device only
USB Host: CDC ACM	WIP: 1 device only
USB Host: MSD	TODO
USB Host: Audio	TODO
USB Host: UVC	TODO
FreeRTOS	OK, well tested
LwIP	OK, tested PPPoS, ping and HTTP srv
Lua	OK, tested luaL_dostring()

Licensing

AGPLv3. Also read this FAQ.