3

Please go to: sudo raspi-config Select "Advanced options". Select "SPI". And answer "yes" to the question "Would you like the SPI interface to be enabled?". Then exit raspi-config. This configuration is persistent. The information has been added to the Wiki: https://github.com/matrix-io/matrix-creator-quickstart/wiki/enable-spi


2

We (MATRIX Creator development team) have posted another bare metal example about reading a raw audio stream from the FPGA: https://github.com/matrix-io/matrix-creator-hal/blob/master/demos/micarray_recorder.cpp We still working in the beamforming algorithms, we will release the code soon.


2

Thanks for the question! You can see an example on how to get a stream in the following example: https://github.com/matrix-io/matrix-creator-hal/blob/master/demos/mic_demo.cpp /* * Copyright 2016 <Admobilize> * All rights reserved. */ #include <wiringPi.h> #include <string> #include <cmath> #include <iostream> #include <...


1

Did you run the following command before trying to install the package? echo "deb http://packages.matrix.one/matrix-creator/ ./" | sudo tee --append /etc/apt/sources.list


1

The usual recipe (first update, then upgrade) sudo apt-get update sudo apt-get upgrade for the matrix-creator-hal git clone https://github.com/matrix-io/matrix-creator-hal.git cd matrix-creator-hal mkdir build cd build cmake .. make Run the demos cd demos ./arc_demo


1

The steps have been simplified. Please take a look at the Wiki again and let us know if things work for you. SPI is enabled by matrix-creator-init package so you don't have to do it by hand. If it doesn't work, try doing it in a fresh image of raspbian.


1

We have published the first recipe to make a Amazon Echo DIY device using a Raspberry Pi + MATRIX Creator. http://www.instructables.com/id/Build-a-DIY-Amazons-Alexa-With-a-Raspberry-Pi-and-/


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