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C6657温度&功耗



调试C6657发现个状况,大神们看下合理不。

板子设计从SPI flash启动,暂时没有焊接Flash芯片,所以POR reset后应该卡在了启动环节。

此时DSP芯片会微微发热,而且功耗会随芯片表面温度上升而缓慢增加(温度大概升了十度,功耗增了200mW),要是把芯片表面温度降下来,功耗也会降低,具有重复性。

一般不是功耗决定温度么,这次好像反过来了,而且器件的温度能这么明显的影响功耗吗?