bsp总结

就版本、nand nor、 led三样本周，六六六

 1、

bsp坏块---

=> nand bad

Device 0 bad blocks:
04760000
06000000
07fe0000
=> nand dump 04760000
Page 04760000 dump:
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

2、 cspboot 升级，代码阅读

cspboot_pdt.c

 --最基本 极easy--    下次不要对lwu 说l 

U_BOOT_CMD (  do_upgrade  ) 

进入流程--

pdt_cspboot_upgrade

zbi->upgrade

//即  zteboot_upgrade

后面基本就是

​zbi->upgrade_firmware