ST支持真不给力。问题已经解决……结贴。是要开比较器的时钟才好现附代码,功能正常。
CLK_PeripheralClockConfig(CLK_Peripheral_DAC, ENABLE);
CLK_PeripheralClockConfig(CLK_Peripheral_COMP, ENABLE);
RI->IOSR2 =0x10;
RI->IOCMR2 =0x10;
DAC_DeInit();
/* Fill DAC Init param DAC_Trigger_None and DAC Channel1 Init */
DAC_Init(DAC_Channel_1, DAC_Trigger_None, DAC_OutputBuffer_Disable);
/* Enable DAC Channel1 */
DAC_Cmd(DAC_Channel_1, ENABLE);
DAC_SetChannel1Data(DAC_Align_12b_R,10);
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