C6455的HPI启动问题如何解决

The boot sequence is started automatically after each power-on reset, warm reset, max reset, and system reset.
POR, warm reset都可以去重新锁存bootmode管脚决定进入哪种boot模式。

看一下POR信号是否足够长？没有和reset管脚接 一起吧？请看下面数据手册上对POR的说明。
7.6.1 Power-on Reset (POR Pin)
http://www.ti.com/lit/ds/symlink/tms320c6455.pdf

    你好！
              经与我们的硬件工程师确认，我们的板卡未改版前你说的两个管脚接一起确实是接一起的，请问接一起会造成该问题吗？什么原因了？
还有，后来我们的板卡又改了一版，就未接一起了。在改版上的板卡上就未出现该问题！如果真与硬件两个管脚接一起有关？那软件上有没有办法解决啊？谢谢

按照手册上来，软件没法解决。
To most of the device, reset is de-asserted only when the POR and RESET pins are both
de-asserted (driven high). Therefore, in the sequence described above, if the RESET pin is
held low past the low period of the POR pin, most of the device will remain in reset. The only
exception being that PLL2 is taken out of reset as soon as POR is de-asserted (driven high),
regardless of the state of the RESET pin. The RESET pin should not be tied together with
the POR pin.

http://www.ti.com/lit/ds/symlink/tms320c6455.pdf

     Shine Zhang 你好！
                     那我们出现的该问题确实是两个引脚联一起造成的吗？在你的回复里我想确定是不是该原因！