Difference between revisions of "ETRA SOM/ETRA Evaluation Kit/Getting started/Connections and first boot"
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__FORCETOC__ | __FORCETOC__ | ||
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== Connections == | == Connections == | ||
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To connect to the system: | To connect to the system: | ||
| − | * connect the 12Vcc power supply to | + | * insert the SD card into the micro SD slot |
| − | * connect the | + | * connect the 12Vcc power supply to J1 on the board |
| + | * connect the USB to TTL UART adapter to the J2 connector on the SBC and connect the USB side connector to an USB port on your computer | ||
| + | ** if required, install the [https://ftdichip.com/drivers/ FTDI USB to serial driver] | ||
** start your favorite terminal emulator software on PC (eg: PuTTY, Minicom, ...); communication parameters are 115200,N,8,1 | ** start your favorite terminal emulator software on PC (eg: PuTTY, Minicom, ...); communication parameters are 115200,N,8,1 | ||
| − | * (optional) connect the ethernet cable from your LAN hub/switch to the | + | * (optional) connect the ethernet cable from your LAN hub/switch to the J5 RJ45 connector |
** start SSH, using the following parameters: | ** start SSH, using the following parameters: | ||
| − | *** ip address: 192.168. | + | *** ip address: 192.168.0.89 |
*** username: root | *** username: root | ||
*** empty password | *** empty password | ||
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| + | '''Warning''': please, pay attention to the debug cable header connection, see the picture here below: | ||
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| + | [[File:ETRA_SBC-usb-to-serial.png|400px|center| FTDI USB to serial debug cable]] | ||
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== First boot == | == First boot == | ||
Latest revision as of 15:43, 7 September 2023
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| Issue Date | Notes | ||
| 2023/09/06 | First release | ||
Contents
ConnectionsEdit
This section describes how to quick start the Evaluation Kit. The picture below shows the ETRA SOM inserted into the Evaluation Kit:
The system is programmed to automatically boot Linux at power up, loading the bootloader, the kernel and device tree image and the root file system from the SD card memory.
To connect to the system:
- insert the SD card into the micro SD slot
- connect the 12Vcc power supply to J1 on the board
- connect the USB to TTL UART adapter to the J2 connector on the SBC and connect the USB side connector to an USB port on your computer
- if required, install the FTDI USB to serial driver
- start your favorite terminal emulator software on PC (eg: PuTTY, Minicom, ...); communication parameters are 115200,N,8,1
- (optional) connect the ethernet cable from your LAN hub/switch to the J5 RJ45 connector
- start SSH, using the following parameters:
- ip address: 192.168.0.89
- username: root
- empty password
- start SSH, using the following parameters:
Warning: please, pay attention to the debug cable header connection, see the picture here below:
First bootEdit
Once power has been applied, U-Boot bootloader will be executed and the debug messages will be printed on the serial console. U-Boot automatically runs the autoboot macro, that loads the kernel/dtb and launches it with the options for mounting the root file system from the SD card.
At the end of the boot process, a demo application is launched and you can interact with the system using the touchscreen. The Linux shell is available on the serial console. Moreover, both telnet and ssh services are available to connect to the system through the network.
Serial consoleEdit
A simple Windows serial and SSH/telnet client and terminal can be downloaded from here.
The following picture shows the serial setup for connecting to the EVK:
once selected the COM[x] serial port, click the Open button which starts the terminal. Once powered, the EVK shows the U-boot debug messages printed on the serial console.
Connecting through SSHEdit
The following picture shows the SSH connection to the EVK:
once selected the IP address, click the Open button which starts the terminal. Once connected, the EVK shows the linux kernel prompt login for inserting the login:
Then use the root login username without password:
