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想用Timer_A触发ADC12转换,要将ADC12CTL1里的SHSx设置成Timer source。我用的是MSP430F5529,所以SHSx = 01 那么就是选择TA1和TA0.1。但是该怎么设置Timer_A呢?
关键是看你想按照如何方式去触发ADC。
假如你想周期性地触发ADC,那么TA需要设置成UP模式,TACCP1设置周期值,这样TA CCP1的周期中断会触发ADC12
我没明白的地方是:比如说,当SHSx = 01的时候,datasheet上写着module block: CCR1;module output signal: TA1; device output signal: TA0.1。这几个是什么关系?他们影响到的寄存器有分别是什么呀?多谢多谢!