131 [sw][linux][raspi][ioc] Orange Pi Zero setup

image

- [armbian](https://www.armbian.com/orange-pi-zero/)

scoop install rufus

apt mirrors

sudo cp -f /etc/apt/sources.list /etc/apt/sources.list.bak
sudo tee /etc/apt/sources.list << 'EOF'
deb https://mirrors.bfsu.edu.cn/debian/ bookworm main contrib non-free non-free-firmware
deb https://mirrors.bfsu.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware
deb https://mirrors.bfsu.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware
deb https://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware

# deb-src https://mirrors.bfsu.edu.cn/debian/ bookworm main contrib non-free non-free-firmware
# deb-src https://mirrors.bfsu.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware
# deb-src https://mirrors.bfsu.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware
# deb-src https://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware
EOF

sed -i.bak 's#http://beta.armbian.com#https://mirrors.bfsu.edu.cn/armbian#g' /etc/apt/sources.list.d/armbian.list
#sed -i.bak 's#http://apt.armbian.com#https://mirrors.bfsu.edu.cn/armbian#g' /etc/apt/sources.list.d/armbian.list

sudo apt update && sudo apt upgrade

samba & tftp

[raspi docs samba](https://www.raspberrypi.com/documentation/computers/remote-access.html#samba-smbcifs)

sudo apt update
sudo apt install samba samba-common-bin smbclient cifs-utils

cd ~
mkdir shared
chmod 0740 shared
sudo smbpasswd -a opi

sudo tee -a /etc/samba/smb.conf << 'EOF'
[shared]
    path = /home/rpi/shared
    writable = yes
    browsable = yes
    public = yes
    create mask = 0777
    max connections = 10
EOF
sudo sed -i '/map to guest = bad user/s/^/# /' /etc/samba/smb.conf

sudo systemctl restart smbd

# trouble shoot
rm -rf /var/log/samba/log.smbd
sudo rm -rf /var/lib/samba/registry.tdb

[Test setup (TFTP)](https://www.raspberrypi.com/documentation/computers/remote-access.html#test-setup)

Networking

# only for minimal images
sudo tee /etc/netplan/20-static-ip.yaml << EOF
network:
  version: 2
  renderer: networkd
  ethernets:
    eth0:
      addresses:
      - 192.168.137.201/24
      routes:
      - to: default
        via: 192.168.137.1
      nameservers:
       addresses:
         - 114.114.114.114
         - 8.8.8.8
EOF

sudo chmod 600 /etc/netplan/*.yaml
sudo netplan try
sudo netplan apply

Install fzf/zellij/zoxide

Download them from windows side - [fzf](https://github.com/junegunn/fzf/releases) Or just use samba on windows side.

python

- install pkgs

sudo apt install python3-dev python3-pip python3-venv

- add pypi mirrors

# pip config set global.index-url https://mirrors.bfsu.edu.cn/pypi/web/simple
pip config set global.index-url https://www.piwheels.org/simple

- create venvs

mkdir -p ~/.virtualenvs
cd ~/.virtualenvs
python3 -m venv epics
source ~/.virtualenvs/epics/bin/activate

- failed to build wheels, then use piwheels

pip3 install numpy -i https://www.piwheels.org/simple

- numpy failed to import, cannot find openblas

sudo apt install libopenblas-dev

---

Comments

konosubakonoakua · 2024-12-24T11:54:54Z

epics on orange pi zero

sudo apt -y install git net-tools build-essential re2c libnet-dev libpcap-dev libusb-1.0-0-dev

- https://epics.anl.gov/download/base/index.php

mkdir $HOME/EPICS
cd $HOME/EPICS
wget https://epics.anl.gov/download/base/base-7.0.8.1.tar.gz
tar xf base-7.0.8.1.tar.gz && ln -s base-7.0.8.1 epics-base
cd epics-base
make -j2
~/EPICS/bin/linux-arm/softIoc

> [!IMPORTANT] > You need to set `PYEPICS_LIBCA` to load the correct `libca.so` on rpi > Refer to: [pyepics issue 238](https://github.com/pyepics/pyepics/issues/238)

cat >> ~/.bashrc << 'EOF'

export EPICS_BASE=$HOME/EPICS/epics-base
export EPICS_HOST_ARCH=linu-arm
export PYEPICS_LIBCA=$HOME/EPICS/epics-base/lib/linux-arm/libca.so

EOF

#### pythonsoftioc on raspi

# because it will install 7.0.7.99.0.2 which will not work with latest softioc
uv pip install epicscorelibs==7.0.7.99.1.1
uv pip install softioc

Then try with [this test](https://diamondlightsource.github.io/pythonSoftIOC/master/tutorials/creating-an-ioc.html). #### pcaspy on raspi

sudo apt install -y swig

mkdir ~/EPICS/support
cd ~/EPICS/support
wget https://github.com/epics-modules/pcas/archive/refs/tags/v4.13.3.tar.gz
mv v4.13.3.tar.gz pcas-4.13.13.tar.gz
tar xvzf pcas-4.13.3.tar.gz && rm pcas-4.13.3.tar.gz
cd ./pcas-4.13.3

cat > configure/RELEASE.local << EOF
EPICS_BASE = ${EPICS_BASE}
EOF

make -j4

cat >> ~/.bashrc << EOF
export PCAS=~/EPICS/support/pcas-4.13.3
EOF

source ~/.bashrc

uv pip install pcaspy

If encountered with: `ImportError: libca.so.4.14.3: cannot open shared object file: No such file or directory`, Check version first:

caget -V

ldd ~/.virtualenvs/opi/lib/python3.11/site-packages/pcaspy/_cas.cpython-311-armhf-linux-gnu.so

If epics version not matched with pcas build, then use `ln -s` to make softlinks for shared libs.

cd $EPICS_BASE/lib/linux-arm/
ln -s libca.so.4.14.4 libca.so.4.14.3
ln -s libCom.so.3.23.1 libCom.so.3.23.0

konosubakonoakua · 2024-12-24T14:21:46Z

swapfile

## add
sudo fallocate -l 1G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile

## remove
sudo swapoff /swapfile
sudo rm /swapfile

konosubakonoakua · 2024-12-24T15:06:02Z

autostart

rc-local

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
  printf ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>IP address is %s\n" "$_IP"
fi

### add your commands here ###

# keep this line
exit 0

systemd

- Example

sudo tee /etc/systemd/system/ioc-instr-cs-keithley-6221.service << EOF
[Unit]
Description=softioc for keithley current source 6221
After=network.target
StartLimitIntervalSec=60
StartLimitBurst=5

[Service]
ExecStart=/home/opi/shared/iocs/ioc-instr-cs-keithley-6221/pve/softioc_keithley6221.sh
WorkingDirectory=/home/opi/shared/iocs/ioc-instr-cs-keithley-6221/pve/
StandardOutput=inherit
StandardError=inherit
Restart=always
User=opi

[Install]
WantedBy=multi-user.target
EOF

- Enable & Start

sudo systemctl enable ioc-instr-cs-keithley-6221.service
sudo systemctl start ioc-instr-cs-keithley-6221.service

- Logging

journalctl -u ioc-instr-cs-keithley-6221.service -f

- Restart

sudo systemctl reset-failed ioc-instr-cs-keithley-6221.service
sudo systemctl restart ioc-instr-cs-keithley-6221.service

- Reload

sudo systemctl daemon-reload