我想在板子上实现写保护的功能,我该如何通过uniflash实现呢?已经写保护了的开发板如何解开写保护呢?有相关的文档吗?
Viki Shi:
• Disable all JTAG DAP/TAPs (Debug/Test Access Port) through CCFG.
• Disable ROM bootloader and ROM bootloader backdoor in CCFG (programmed pin held at programmed level at boot -> device goes to boot loader mode
To reprogram with these settings enabled you need to to a full chip erase before reprogramming the chip.
简单点的话,也可以用smartrf flash programmer实现:
user6359397:
回复 Viki Shi:
谢谢你的回复,我看到smartrf flash programmer的CCFG中有Write-protect sectors,Lock debug interface和Disable Bootloader,如果我勾选了上述的选择,我还能解开保护并进行二次烧写吗?我如何解开呢?
Viki Shi:
回复 user6359397:
把勾选去掉并mass erase+ reprogram