readme update
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README.md
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README.md
@ -275,8 +275,11 @@ This forwards any requests to localhost:1534 to the port 1534 of the Q7S with th
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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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Note: It is not possible to modify the currently loaded root partition, e.g. creating directories. To do this,
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the parition needs to be mounted.
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1. Disable write protection of the desired root partition
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```sh
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@ -288,6 +291,8 @@ Note: It is not possible to modify the current loaded root partition.
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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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The mounted partition will be located inside the `/tmp` folder
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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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```sh
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@ -313,21 +318,23 @@ Note: It is not possible to modify the current loaded root partition.
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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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ln -s '/tmp/the-mounted-xdi-image/lib/systemd/system/example.service' '/tmp/the-mounted-xdi-image/etc/systemd/system/multi-user.target.wants/example.service'
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````
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```sh
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ln -s '/tmp/the-mounted-xdi-image/lib/systemd/system/example.service' '/tmp/the-mounted-xdi-image/etc/systemd/system/multi-user.target.wants/example.service'
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```
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7. The modified root partition is written back when the partion is locked again.
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````
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writeprotect 0 0 1
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````
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```sh
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writeprotect 0 0 1
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```
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8. Now verify the application start by booting from the modified image
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````
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xsc_boot_copy 0 0
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````
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```sh
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xsc_boot_copy 0 0
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````
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9. After booting verify if the service is running
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````
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systemctl status example
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````
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```sh
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systemctl status example
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```
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More detailed information about the used q7s commands can be found in the Q7S user manual.
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### Bringing up CAN
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