Requirement: The uboot and system have been transplanted, and the next step is to build the upgrade tool for later debugging convenience, and to learn by yourself
Expectation: Understand the memory ing, understand the MTD device operation framework, and understand the TFTP source code.
Plan: three steps:
Step 1: port the TFTP source code: see the TFTP source code in busybox and put it in nandup as part of the upgrade tool.
You can download the image file to the/tmp directory by executing./nandup Server Filename.
Step 2: Burn the downloaded file to flash using the file name.
Step 3: The function performance is optimized to save memory, so that you do not need to download all the data and then burn the data to the extreme.
Time Point: completed within 1 month, that is, before 11
Note:
(1) be sure to have your own things and accumulate your own things. If you are studying in a company, you can't leave the company, and you can't resist pressure or talk about anything!
(2) out of the door of the company, do not want to work, do your own things, do your own technical accumulation, out of the company you are a free person, do what you want to do!
Nandup-NAND Flash upgrade tool project planning