用ccs3.3烧写自制F28335控制板没有问题,可以反复进入运行环境进行连接、烧写。
当加密后,程序可以正常运行。再连接仿真器进入ccs后在debug菜单下进行connect连接时,报错0x00001200/-1145,无法连接。几块板都有同样的现象,用合众达的目标板没问题。
请教专家28335加密后要重新烧写是不是需要特殊的硬件设计?
还是我的操作有不当的地方?
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用ccs3.3烧写自制F28335控制板没有问题,可以反复进入运行环境进行连接、烧写。
当加密后,程序可以正常运行。再连接仿真器进入ccs后在debug菜单下进行connect连接时,报错0x00001200/-1145,无法连接。几块板都有同样的现象,用合众达的目标板没问题。
请教专家28335加密后要重新烧写是不是需要特殊的硬件设计?
还是我的操作有不当的地方?
如果芯片不加密/擦除芯片内部的程序后,能够正常的仿真器连接,那我估计就是一开始谈到的问题。至于3.3K的上拉电阻,是可以的。
如果不加密芯片的时候也有这个问题,仿真器无法正常连接开发板,那请看下面的帖子:
www.deyisupport.com/.../7152.aspx
这是一个办法。解决ECSL只有2个办法,如下所示。
1. The first is to use the Wait-In-Reset emulation mode, which will hold the device in reset until the
emulator takes control. The emulator must support this mode for this option.
2. The second option is to use the “Branch to check boot mode” boot option. This will sit in a loop and
continuously poll the boot mode select pins. You can select this boot mode and then exit this mode
once the emulator is connected by re-mapping the PC to another address or by changing the boot
mode selection pin to the desired boot mode.