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TMS320LF2406APZA芯片故障

你好,我们在使用该芯片时,每次50多片就有1~2片出现问题,主要表现在DSP控制显示乱码,坏的DSP内部FLASH无法写入,有时程序更新一下就好了,有时内部看门狗不停的复位,有时有个别引脚失效;更换DSP问题就解决了,真不知道什么原因!望各位专家帮小弟解决一下不胜感激,在此叩谢了!!

email:drive2118@126.com