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您好,
请参考www.ti.com/.../sprui07.pdf
“ADC start-of-conversion signals (EPWMxSOCA and EPWMxSOCB).
Each ePWM module has two ADC start of conversion signals (one for each sequencer). Any ePWM
module can trigger a start of conversion for either sequencer. Which event triggers the start of
conversion is configured in the Event-Trigger submodule of the ePWM.”
这意味着你可以选择任意一个ePWM模块的SOCA或SOCB事件来触发ADC采样,具体的选择取决于你的应用需求和系统设计。
我认为不会自动默认某一个ePWM模块的SOC事件,而是由你在编程时设定哪一种ePWM的SOC事件用于触发ADC采样。
有点明白了,也就是说ADC中没有选择具体某个ePWMx_SOC触发源的配置选项,而是由ePWM决定是否输出触发信号;
那么如果按照我前面的假设,ADC配置为非连续采样时,在所有5个ePWM的SOC均开启情况下,每个SOC信号应该都会触发ADC采样转换。
以上推论是否正确,还请麻烦指正,感谢!