CM-X300 U-Boot Update
Contents
CM-X300 Firmware Update process
Preliminary
Some basic steps are needed to be taken in order to update the CM-X300 firmware successfully:
- Make sure to power off the CM-X300 board
- Connect one end of the supplied serial cable to your module's base board and the other one to your host system
- Start terminal console application on your host system and configure the following:
- Set the serial port to one with the attached cable
- Set baud rate to 38400 bps
- 8 bit per frame
- 1 stop bit
- no parity
- no flow control
- Turn the CM-X300 board on
- Now you should get the U-Boot command prompt in your terminal application
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If you have an operating system installed or U-Boot environment configured for auto boot, you will have to stop the auto boot sequence by pressing any key in your terminal application during the start of the boot process! |
U-Boot firmware could be updated either from USB flash drive (with FAT filesystem), or from Network tftp download. Either method is done from U-Boot command line.
USB flash drive
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Please, connect your flash drive directly to the base board of the module! Do not use any USB hubs or other separating equipment! |
To update the U-Boot firmware via USB flash drive, follow the instructions precisely!
- Start the U-Boot USB subsystem and check that your storage device is ready and contains the firmware
- Type: usb start
- Type: fatls usb 0 to ensure you have the firmware in place
U-Boot> usb start
(Re)start USB...
USB: scanning bus for devices... 2 USB Device(s) found
scanning bus for storage devices... 1 Storage Device(s) found
U-Boot> fatls usb 0
524288 cm-x300-firmware
1 file(s), 0 dir(s)
- Load the firmware to memory
- Type: fatload usb 0 80a00000 <firmware filename>
U-Boot> fatload usb 0 80a00000 cm-x300-firmware reading cm-x300-firmware 524288 bytes read
- Proceed to Update process section
Network tftp download
In order to use this update method, you need:
- TFTP service/server installed on your host system
- Firmware file should reside in the root directory of TFTP service
To update the U-Boot firmware via tftp download, follow the instructions precisely!
- Download the firmware to module's memory
- Type: tftp 80a00000 <firmware filename>
U-Boot> tftp 80a00000 cm-x300-firmware dm9000 i/o: 0x8000010, id: 0x90000a46 DM9000: running in 16 bit mode MAC: 00:01:c0:05:20:be operating at 100M full duplex mode TFTP from server 10.1.1.13; our IP address is 10.1.1.144 Filename 'cm-x300-firmware'. Load address: 0x80a00000 Loading: #################################### done Bytes transferred = 524288 (80000 hex)
- Proceed to Update process section
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If you get the "could not establish link" message, check that your ethernet plugs are in place and try again. |
Update process
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DO NOT RESET OR POWER OFF THE MODULE DURING THE UPDATE PROCESS! DOING SO MAY RESULT IN DISABLED MODULE! |
- Flash the firmware to onboard NAND storage
- Type: nand erase 0 80000
- Type: nand write 80a00000 0 80000
U-Boot> nand erase 0 80000 NAND erase: device 0 offset 0x0, size 0x80000 Erasing at 0x60000 -- 100% complete. OK U-Boot> nand write 80a00000 0 80000 NAND write: device 0 offset 0x0, size 0x80000 524288 bytes written: OK
- Now you may reset the board
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In case you use Windows CE and you update U-Boot, you will need to load the ImageUdater after the U-Boot update. There is no need to install the image again. This will update the NAND flash metadata that is crucial for Windows CE. |
