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Data bits : 8
Parity: None
Stop bits: 1
Flow control: None
3) Power on IP04.
4) Remember to put the jumper as where it was after using the Rs232 port.
10.9 HOWTO -- Upgrade the kernel of IP01,IP04 and IP08?
In the previous version of IP04, the kernel is not the BAPS kernel, it will be not convenient
for the software upgrade (via IPKG) in future. We can use the RS232 console port to upgrade
the kernel to a BAPS base kernel.
10.9.1 Download the latest kernel and set up TFTP server
Download the latest kernel from http://www.atcom.cn/down/uimage_r2.zip. Set up a TFTP
server and put the kernel on your TFTP server root directory.
10.9.2 Connect console module to IP04
Connect the RS232 console port to the IP04, there is a console port module ship together
with the IP04. Connect the console port to the ip04 as per:
HOWTO – Use RS232 port to connect IP-XX?
Power on the IP04 and stop the boot process at the u-boot prompt.
Now we are going to write the new uImage to flash. your:mac:address can be found on the
bottom case of the device. In the IP08, we need to use two MAC address, the MAC address in the
bottom case plus 1 is the second MAC address (eth1addr). For example, if your IP08 has a MAC
address 00:09:45:78:56:12 on the bottom case, then the second MAC address is
00:09:45:78:56:13
10.9.3 Update kernel
NOTE: Do not cut/paste the steps below into your serial terminal program, as they often cannot
respond fast enough and lose characters. Type each line carefully by hand.
In u-boot:
ip04>set autostart
ip04>setenv serverip your_tftp_server_address
ip04>tftp 0x1000000 uImage_r2.ip08
ip04>nand erase clean
ip04>nand erase
ip04>nand write 0x1000000 0x0 0x300000
ip04>set bootargs ethaddr=your:mac:address console=ttyBF0,115200 root=/dev/mtdblock0 rw
(If you are using the IP08, please refer below bootargs for IP08)