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TMS320F28069功率发热问题



用069的launchpad和自己做的最小系统板上芯片发热功率很高(只是一些亮灯程序),试着关掉一些不用到的时钟,电流减少了一部分,但还是很高(比手册上所说的高),想请教下是为什么,是不是有些其他的功能需要手动关闭

望高手请教,急!