STW TC1, Руководство пользователя

Страница: 310 / 374

9 Update the Device
User Manual 310/374
How to test the RS232 connection
1. Open a terminal program on the host PC (for example Hyperterm, or the TeraTerm that is supplied in the
tterm folder)
2. Setup the serial port where the device is connected to the following settings:
a. 115200 baud
b. 1 stop bit
c. no parity bit
d. no handshake.
3. Switch on the power supply of the TC1 controller.
You should see the boot messages of the U-Boot and Linux kernel in the terminal.
How to start the Updater
1. Switch off the device.
2. Start the batch file tc1_updater_for_windows.bat. The batch file opens the Tftpd32 and the TeraTerm
programs and starts the update script.
3. When the script prompts to switch on the device, then do it.
9.3 Linux Updater
The Linux updater is a software tool to update the TC1 from a Linux OS. It can be found in the Deployment
Package v1.00r1 or newer.
Over the GUI the components for the updated can be selected. The settings for the update are stored in the
configuration file config.ttl.
The Linux updater provides the possibility to update over USB, when a USB device is available on the board.
WARNING:
Do not interrupt the update process!
If the update process is interrupted during the update of the U-Boot component, it is not possible
to access the board from an external interface any more.
In this case the controller has to be sent back to STW for reprogramming.
The U-Boot is updated in one of the last update steps.
Interrupting the update process during any other step is not too critical, since it can just be restarted.
NOTE:
To be able to perform the update super user permissions are mandatory.
It is only possible to update an U-Boot 2012.10 U-Boot. The U-Boot 2008.10 is no longer supported.
For the first update over TFTP download from a PC, a connection to the internet is required.
On the first update, a TFTP tool will be automatically installed to your PC.
This TFTP tool performs the update.