Micro2440 Instructions for U-Boot and Linux
A brief introduction about how to get started with the Micro2440 boards and u-boot.
We are going to replace all contents of the NAND flash - so make sure to have a backup if there is any valuable data on your device.
We are going to replace all contents of the NAND flash - so make sure to have a backup if there is any valuable data on your device.
What we need
- Micro2440 SDK
- Linux PC (Windows would work as well but I'm not sure how to upload files to Vivi with it.)
- SD/MMC card
- Serial cable
- USB cable or JTAG (to replace vivi)
Replacing the Bootloader
We are going to use the bootloader in NOR flash for booting preparing the whole boot environment in NAND flash. Doing so we can create a new bad block table for the NAND flash which seems to be necessary for most of the board shipped.
We are going to copy u-boot into the RAM of the board and execute it there. u-boot will provide us all necessary features to prepare nand flash and copy itself there.
We are going to copy u-boot into the RAM of the board and execute it there. u-boot will provide us all necessary features to prepare nand flash and copy itself there.
1. Use your preferred serial terminal application and connect to the micro2440 SDK board "COM-0" port. The u-boot serial console communication parameters are 115200,8,n,1. Connect the USB client (B) plug of the board with an USB port of your PC. Make sure to set the boot selection switch to the 'NOR' position before you power on the board.
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