/machinekit-chip

Machinekit for the NextThing C.H.I.P.

Primary LanguageShell

Machinekit for the CHIP

The purpose of this project is to make using Machinekit on the NextThing CHIP as comfortable as possible.

If your CHIP. is already connected to the internet, you can skip ahead to the installation.

Setup WiFi

First of all, you need to connect your CHIP. to the web. Do achieve this you connect the CHIP. to WiFi network.

First, list the available networks.

nmcli device wifi list

You should see a list of available networks.

*  SSID      MODE   CHAN  RATE       SIGNAL  BARS  SECURITY
*  NextThing HQ    Infra  11    54 Mbit/s  100     ▂▄▆█  --
   NextThing Shop  Infra  6     54 Mbit/s  30      ▂___  WPA1 WPA2
   2WIRE533        Infra  10    54 Mbit/s  44      ▂▄__  WPA1 WPA2

Next, connect a network. Without password:

sudo nmcli device wifi connect '(your wifi network name/SSID)' ifname wlan0

Or with password:

sudo nmcli device wifi connect '(your wifi network name/SSID)' password '(your wifi password)' ifname wlan0

Once connected you are ready to install Machinekit.

## Install

Installing Machinekit on the CHIP is as easy as executing the following line:

curl -sSL http://bit.ly/2cyf0At | sudo -E bash -

This script will download and install Machinekit and an RT-PREEMPT kernel for the CHIP 4.4 images. Caution: During the installation, it will download a few hundred megabytes of data.

Test

Now it is time to download and run the first Machinekit configuration.

First, install git.

sudo apt install git

Then, clone the hal_hello_chip configuration and execute the run.py:

cd
mkdir repos
cd repos
git clone https://github.com/machinekoder/hal_hello_chip
cd hal_hello_chip
./run.py &

Now you should have a running Machinekit instance. To verify your setup is working run:

halcmd show pin

You should see something similar to this:

Component Pins:
  Comp   Inst Type  Dir         Value  Name                                             Epsilon         Flags
    73        bit   OUT         FALSE  chip_gpio.in-04                                                  0
    73        bit   IN          FALSE  chip_gpio.in-04.invert                                           0
    73        bit   OUT         FALSE  chip_gpio.in-05                                                  0
    73        bit   IN          FALSE  chip_gpio.in-05.invert                                           0
    73        bit   OUT         FALSE  chip_gpio.in-06                                                  0
    73        bit   IN          FALSE  chip_gpio.in-06.invert                                           0
    73        bit   OUT         FALSE  chip_gpio.in-07                                                  0
    73        bit   IN          FALSE  chip_gpio.in-07.invert                                           0
    73        bit   IN          FALSE  chip_gpio.out-00                                                 0 <== square
    73        bit   IN          FALSE  chip_gpio.out-00.invert                                          0
    73        bit   IN          FALSE  chip_gpio.out-01                                                 0
    73        bit   IN          FALSE  chip_gpio.out-01.invert                                          0
    73        bit   IN          FALSE  chip_gpio.out-02                                                 0
    73        bit   IN          FALSE  chip_gpio.out-02.invert                                          0
    73        bit   IN          FALSE  chip_gpio.out-03                                                 0
    73        bit   IN          FALSE  chip_gpio.out-03.invert                                          0
    73        s32   OUT          3625  chip_gpio.read.time                                              0
    73        s32   OUT          3875  chip_gpio.write.time                                             0
   102        float IN              1  siggen.0.amplitude                               0.000010        0
   102        bit   OUT         FALSE  siggen.0.clock                                                   0 ==> square
   102        float OUT    -0.9921147  siggen.0.cosine                                  0.000010        0
   102        float IN             10  siggen.0.frequency                               0.000010        0
   102        float IN              0  siggen.0.offset                                  0.000010        0
   102        float OUT         -0.04  siggen.0.sawtooth                                0.000010        0
   102        float OUT     0.1253332  siggen.0.sine                                    0.000010        0
   102        float OUT             1  siggen.0.square                                  0.000010        0
   102        float OUT         -0.88  siggen.0.triangle                                0.000010        0
   102        s32   OUT          7958  siggen.0.update.time                                             0

Now you are ready to play around with Machinekit

Setup USB OTG networking

If you want to use USB networking on your CHIP., you can use following commands.

sudo editor /etc/network/interfaces.d/usb0

And insert

auto usb0
iface usb0 inet static
address 192.168.7.1
netmask 255.255.255.0

Start the network by running:

sudo ifup usb0

On your host computer, you have to use manual IPv4 address 192.168.7.2 and netmask 255.255.255.0.