在使用MSP430F169 DAC12的时候发现一个问题，在向DAC12_0DAT或DAC12_1DAT写入数据后，单步运行时能输出预设电压，但是程序整体运行后，输出电压就降为0。DAC12输出后跟了一个电压跟随器的。有人碰到过这个问题吗？怎么解决的？谢谢！
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