Configuration manual
10. Software Upgrade
115
www.qtech.ru
It does not matter whether the image program, bootloader program, or
FPGA program is upgraded first, but the device can be restarted only after
all programs have been upgraded.
The image program and bootloader program must be used together.
Usually, FPGA program does not need to be upgraded.
Before the upgrade, ensure that there is sufficient space in the flash file
system for saving the image file that is used for upgrade. If there is not
sufficient space on the device, delete the files that are not in need from the
file system of the device. The remaining space of the flash file space is
recommended to be larger than 10M before the upgrade. Otherwise, the
upgrade may cost a longer time.
If some programs are not updated in the newly released version, the
unchanged programs need not be upgraded.
10.3.2
Upgrade the bootloader Program via the Console Port
Network Requirements
PC and the Console port of the device is directly connected.
The bootloader program is to be upgraded through the Console port.
Network Topology
Figure 10-2 Networking for upgrading the bootloader program via the Console port
Configuration Steps
Step 1:
Connect PC and the Console port of the device properly.(Omitted)
Step 2:
Enter the bootloader interface.
When the device is just started and the " ================== Boot from master bootloader
==================Press ctrl+c to enter bootloader mode: 0" message is printed, press and
hold Ctrl + C to enter the bootloader interface.
Step 3:
Set the transmission rate to 115200 bps to improve the upgrade speed.
bootloader# srate 115200
#After setting the transmission speed of the Console port of bootloader, you should set the
transmission speed of the HyperTerminal also to 115200 bps.
Step 4:
On the bootloader screen, upgrade the bootloader version.