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28335 controCard 仿真器启动运行与直接上电情况完全不同



我购买的28335 controlCard,自制的底板,工作正常,程序烧写到flash,在仿真器控制下,我的PWM的基波是50Hz,断开仿真器直接上电运行,基波却变成了6Hz左右,而且正弦波严重畸变。我用的是开环调制,主程序里建立正弦表,依次输出。ControlCard boot option 我没变过