micropython-ulab

ulab is a numpy-like array manipulation library for micropython. The module is written in C, defines compact containers for numerical data, and is fast.

Documentation can be found under https://micropython-ulab.readthedocs.io/en/latest/ The source for the manual is in https://github.com/v923z/micropython-ulab/blob/master/docs/ulab-manual.ipynb, while developer help is in https://github.com/v923z/micropython-ulab/blob/master/docs/ulab.ipynb.

Firmware

Firmware for pyboard.v.1.1, and PYBD_SF6 is updated once in a while, and can be downloaded from https://github.com/v923z/micropython-ulab/releases.

Compiling

If you want to try the latest version of ulab, or your hardware is different to pyboard.v.1.1, or PYBD_SF6, the firmware can be compiled from the source by following these steps:

First, you have to clone the micropython repository by running

git clone https://github.com/micropython/micropython.git

on the command line. This will create a new repository with the name micropython. Staying there, clone the ulab repository with

git clone https://github.com/v923z/micropython-ulab.git ulab

Then you have to include ulab in the compilation process by editing mpconfigport.h of the directory of the port for which you want to compile, so, still on the command line, navigate to micropython/ports/unix, or micropython/ports/stm32, or whichever port is your favourite, and edit the mpconfigport.h file there. All you have to do is add a single line at the end:

#define MODULE_ULAB_ENABLED (1)

This line will inform the compiler that you want ulab in the resulting firmware. If you don't have the cross-compiler installed, your might want to do that now, for instance on Linux by executing

sudo apt-get install gcc-arm-none-eabi

If that was successful, you can try to run the make command in the port's directory as

make BOARD=PYBV11 USER_C_MODULES=../../../ulab all

which will prepare the firmware for pyboard.v.11. Similarly,

make BOARD=PYBD_SF6 USER_C_MODULES=../../../ulab all

will compile for the SF6 member of the PYBD series. Provided that you managed to compile the firmware, you would upload that by running either

dfu-util --alt 0 -D firmware.dfu

or

python pydfu.py -u firmware.dfu

In case you got stuck somewhere in the process, a bit more detailed instructions can be found under https://github.com/micropython/micropython/wiki/Getting-Started, and https://github.com/micropython/micropython/wiki/Pyboard-Firmware-Update.

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