reamde update
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README.md
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README.md
@ -4,7 +4,7 @@
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Target systems:
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* OBC
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* OBC with Linux OS
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* Xiphos Q7S
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* Based on Zynq-7020 SoC (xc7z020clg484-2)
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* Dual-core ARM Cortex-A9
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@ -12,16 +12,19 @@ Target systems:
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* Artix-7 FPGA (85K pogrammable logic cells)
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* Datasheet at https://eive-cloud.irs.uni-stuttgart.de/index.php/apps/files/?dir=/EIVE_IRS/Arbeitsdaten/08_Used%20Components/Q7S&fileid=340648
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* Also a lot of informatin about the Q7S can be found on the xiphos trac platform: https://trac.xiphos.com/trac/eive-q7/wiki/Q7RevB
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* Linux OS
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* Built with Yocto 2.5
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* Linux OS built with Yocto 2.5
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* Linux Kernel https://github.com/XiphosSystemsCorp/linux-xlnx.git
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* Host System
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* Generic software components which are not dependant on hardware can also
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be run. All host code is contained in the hosted folder
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* Tested for Linux (Ubuntu 20.04) and Windows 10
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* Raspberry Pi
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* EIVE OBC can be built for Raspberry Pi as well (either directly on Raspberry Pi or by installing a cross compiler)
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The steps in the primary README are related to the main OBC target Q7S.
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## Setting up development environment
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* Install Vivado 2018.2 and Xilinx SDK from https://www.xilinx.com/support/download/index.html/content/xilinx/en/downloadNav/vivado-design-tools/archive.html.
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Install the Vivado Design Suite - HLx Editions - 2018.2 Full Product Installation instead of the updates. It is recommended to use the installer
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* Install settings. In the Devices selection, it is sufficient to pick SoC → Zynq-7000: <br>
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@ -133,65 +136,76 @@ git submodule update
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## Debugging the software via Flatsat PC
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Open SSH connection to flatsat PC:
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````
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```sh
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ssh eive@2001:7c0:2018:1099:babe:0:e1fe:f1a5
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````
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```
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To access the console of the Q7S run the following:
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```sh
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picocom -b 115200 /dev/ttyUSB0
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```
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To debug an application, first make sure a static IP address is assigned to the Q7S. Run ifconfig on the Q7S serial console.
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````
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```sh
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ifconfig
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````
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```
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Set IP address and netmask with
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````
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```sh
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ifconfig eth0 192.168.133.10
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ifconfig eth0 netmask 255.255.255.0
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````
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```
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To launch application from Xilinx SDK setup port fowarding on the localhost.
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````
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```sh
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ssh -L 1534:192.168.133.10:1534 eive@2001:7c0:2018:1099:babe:0:e1fe:f1a5
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````
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```
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This forwards any requests to localhost:1534 to the port 1534 of the Q7S with the IP address 192.168.133.10.
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Note: When now setting up a debug session in the Xilinx SDK, the host must be set to localhost instead of the IP address
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of the Q7S.
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Note: When now setting up a debug session in the Xilinx SDK, the host must be set to localhost instead of the IP address of the Q7S.
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## Launching an application after boot
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Load the root partiton from the flash memory (there are to nor-flash memories and each flash holds two xdi images).
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Note: It is not possible to modify the current loaded root partition.
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1. Disable write protection of the desired root partition
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````
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writeprotect 0 0 0 # unlocks nominal image on nor-flash 0
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````
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```sh
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writeprotect 0 0 0 # unlocks nominal image on nor-flash 0
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```
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2. Mount the root partition
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````
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xsc_mount_copy 0 0 # Mounts the nominal image from nor-flash 0
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````
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```sh
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xsc_mount_copy 0 0 # Mounts the nominal image from nor-flash 0
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```
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3. Copy the executable to /bin/usr
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4. Make sure the permissions to execute the application are set
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````
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chmod +x application
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````
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```sh
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chmod +x application
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```
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5. Create systemd service in /lib/systemd/system. The following shows an example service.
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````
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cat > example.service
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[Unit]
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Description=Example Service
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StartLimitIntervalSec=0
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```sh
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cat > example.service
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[Unit]
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Description=Example Service
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StartLimitIntervalSec=0
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[Service]
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Type=simple
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Restart=always
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RestartSec=1
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User=root
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ExecStart=/usr/bin/application
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[Service]
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Type=simple
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Restart=always
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RestartSec=1
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User=root
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ExecStart=/usr/bin/application
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[Install]
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WantedBy=multi-user.target
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````
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[Install]
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WantedBy=multi-user.target
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```
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6. Enable the service. This is normally done with systemctl enable. However, this is not possible when the service is
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created for a mounted root partition. Therefore create a symlink as follows.
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````
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