پاسخ : دانلود کتابخانه های مختلف برای میکروهای STM
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//951020--------------------------------------
//this sample code are for drive DAC of STM32F103VET6 512k flash 100pin chip
void DAC_Configuration(void)
{
DAC_InitTypeDef DAC_InitStructure;
/* DAC Periph clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
/* Fill DAC InitStructure */
DAC_InitStructure.DAC_Trigger = DAC_Trigger_None; /* Select the receiving end */
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Disable;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_LFSRUnmask_TriangleAmplitude = DAC_TriangleAmplitude_2047;
/* DAC channel1 Configuration */
DAC_Init(DAC_Channel_2, &DAC_InitStructure);
/* Enable DAC Channel1: Once the DAC channel1 is enabled, PA.05 is
automatically connected to the DAC converter. */
DAC_Cmd(DAC_Channel_2, ENABLE);
}
void GPIO_Con_DAC(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure DAC channe1 and DAC channel2 outputs pins */
// GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
//951020--------------------------------------
int main()
{
GPIO_Con_DAC(); //init DAC
DAC_Configuration(); //init pinout
while (1)
{static unsigned int daccnt=0;
daccnt++;
DAC_SetChannel2Data(DAC_Align_12b_R, daccnt); //load DAC data holding register
}
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