40118bcf57
This changes lots of files to unify `board.h` across ports. It adds `board_deinit` when CIRCUITPY_ALARM is set. `main.c` uses it to deinit the board before deep sleeping (even when pretending.) Deep sleep is now a two step process for the port. First, the port should prepare to deep sleep based on the given alarms. It should set alarms for both deep and pretend sleep. In particular, the pretend versions should be set immediately so that we don't miss an alarm as we shutdown. These alarms should also wake from `port_idle_until_interrupt` which is used when pretending to deep sleep. Second, when real deep sleeping, `alarm_enter_deep_sleep` is called. The port should set any alarms it didn't during prepare based on data it saved internally during prepare. ESP32-S2 sleep is a bit reorganized to locate more logic with TimeAlarm. This will help it scale to more alarm types. Fixes #3786 |
||
|---|---|---|
| .. | ||
| boards/spresense | ||
| common-hal | ||
| configs/circuitpython | ||
| mkspk | ||
| spresense-exported-sdk@752c4cd56d | ||
| supervisor | ||
| tools | ||
| .gitignore | ||
| Makefile | ||
| README.md | ||
| alloca.h | ||
| background.c | ||
| background.h | ||
| fatfs_port.c | ||
| mpconfigport.h | ||
| mpconfigport.mk | ||
| mphalport.c | ||
| mphalport.h | ||
| qstrdefsport.h | ||
README.md
CircuitPython port to Spresense
This directory contains the port of CircuitPython to Spresense. It is a compact development board based on Sony’s power-efficient multicore microcontroller CXD5602.
Board features:
- Integrated GPS
- The embedded GNSS with support for GPS, QZSS and GLONASS enables applications where tracking is required.
- Hi-res audio output and multi mic inputs
- Advanced 192kHz/24 bit audio codec and amplifier for audio output, and support for up to 8 mic input channels.
- Multicore microcontroller
- Spresense is powered by Sony's CXD5602 microcontroller (ARM® Cortex®-M4F × 6 cores), with a clock speed of 156 MHz.
Currently, Spresense port does not support Audio and Multicore.
Refer to developer.sony.com/develop/spresense/ for further information about this board.
Prerequisites
Linux
Add user to dialout group:
$ sudo usermod -a -G dialout <user-name>
Windows
Download and install USB serial driver
macOS
Download and install USB serial driver
Build instructions
Pull all submodules into your clone:
$ git submodule update --init --recursive
Build the MicroPython cross-compiler:
$ make -C mpy-cross
Change directory to cxd56:
$ cd ports/cxd56
To build circuitpython image run:
$ make BOARD=spresense
USB connection
Connect the Spresense main board to the PC via the USB cable.
Flash the bootloader
The correct bootloader is required for the Spresense board to function.
Bootloader information:
-
The bootloader has to be flashed the very first time the board is used.
-
You have to accept the End User License Agreement to be able to download and use the Spresense bootloader binary.
Download the spresense binaries zip archive from: Spresense firmware v2-0-000
Extract spresense binaries in your PC to ports/spresense/spresense-exported-sdk/firmware/
To flash the bootloader run the command:
$ make BOARD=spresense flash-bootloader
Flash the circuitpython image
To flash the firmware run the command:
$ make BOARD=spresense flash
Accessing the board
Connect the Spresense extension board to the PC via the USB cable.
Once built and deployed, access the CircuitPython REPL (the Python prompt) via USB. You can run:
$ screen /dev/ttyACM0 115200