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GUF-Yocto-34.0-r5756-0
3 Accessing the target system
A Garz & Fricke hardware platform can be accessed from a host system using the following technologies:
Serial console
Telnet
SSH
TFTP
SFTP
Each of the following chapters describes one of these possibilities and, where applicable, gives a short example
of how to use it. For all examples, the Garz & Fricke target system is assumed to have the IP address 192.168.1.1.
3.1 Serial console
The easiest way to access the target is via the serial console. There are two way to connect the serial console:
RS232 on connector X13
Virtual console over USB
To use the RS232 connection, connect the first RS-232 port of your target system using to a COM port of your
PC or a USB-to-RS232 converter using a null modem cable.
For a working connection, the signals
modem cable does. The location of the X13 connector and the necessary pins can be found in figure
I
1],
[
Figure 2]
below. If you received your system as part of a
be used for this connection.
Pin
Name
1
GND
2
RS232_TXD1
3
RS232_RXD1
4
RS232_RTS1
5
RS232_CTS1
6
GND
7
RS232_TXD2
8
RS232_RXD2
9
RS232_RTS2
10
RS232_CTS2
To use the serial console provided over USB, connect a Micro-USB cable to the USB-OTG connector of the
target. When this USB cable is connected to a Windows PC, a driver is installed and a new COM port is created.
Its name can be seen in the device manager.
8
VINCELL
User Manual
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console access over RS-232
console access over Ethernet
encrypted console access and file transfer over Ethernet
file downoad over Ethernet
file upload and download over Ethernet
TXD
and
RXD
Description
Ground
Port#1: Transmit data (Output)
Port#1: Receive data (Input)
Port#1: Request-to-send (Output)
Port#1: Clear-to-send (Input)
Ground
Port#2: Transmit data (Output)
Port#2: Receive data (Input)
Port#2: Request-to-send (Output)
Port#2: Clear-to-send (Input)
Figure 1: Location of the X13 connector
Figure 2: Pinning of the X13 connector
have to be connected cross-over in the same way like a null
starter
kit, this kit should also contain a cable to
I
[
Figure
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