官方的例子是搬移数据实现的.我看DataSheet说可以自动产生锯齿波,但是用下面的代码完全没有波形输出.要产生锯齿波,需要做哪些事情?
- void main(void)
- {
- CLK_PeripheralClockConfig(CLK_Peripheral_TIM4, ENABLE);
- CLK_PeripheralClockConfig(CLK_Peripheral_DAC, ENABLE);
-
- TIM4_TimeBaseInit(TIM4_Prescaler_4,0xFF);
- TIM4_SelectOutputTrigger(TIM4_TRGOSource_Update);
- TIM4_Cmd(ENABLE);
- DAC_Init(DAC_Channel_1,DAC_Trigger_T4_TRGO,DAC_OutputBuffer_Enable);
- DAC_WaveGenerationCmd(DAC_Channel_1,DAC_Wave_Triangle,ENABLE);
- DAC_SetTriangleWaveAmplitude (DAC_Channel_1,DAC_TriangleAmplitude_1023);
- DAC_Cmd(DAC_Channel_1,ENABLE);
- /* Infinite loop */
- while (1)
- {
- }
- }
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