【沁恒微CH32V307评估板】ADC_DMA实验

采集AD输入电压值，并点亮小灯。但小灯无法点亮。同时，单步运行，每次adc_value的值不一样。

int main(void)
{
	u16 i=0;
	uint16_t adc_value;

	SystemCoreClockUpdate();
	Delay_Init();
	USART_Printf_Init(115200);		
	printf("SystemClk:%d\r\n",SystemCoreClock);
	printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );

    ADC_Function_Init();
    printf("CalibrattionValue:%d\n", Calibrattion_Val);
  
	DMA_Tx_Init( DMA1_Channel1, (u32)&ADC1->RDATAR, (u32)TxBuf, 1024 );
	DMA_Cmd( DMA1_Channel1, ENABLE );

	ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_239Cycles5 );
	ADC_SoftwareStartConvCmd(ADC1, ENABLE);
    Delay_Ms(50);
	ADC_SoftwareStartConvCmd(ADC1, DISABLE);
	GPIO_Toggle_INIT();

	for(i=0; i<1024; i++)
	{
		printf( "%04d\r\n", Get_ConversionVal(TxBuf[i]));
		Delay_Ms(10);
	}


	while(1)
	{

	   adc_value=Get_ADC_Val(ADC_Channel_1);

       if( adc_value>0 )//断点处
        {
            GPIO_WriteBit(GPIOB, GPIO_Pin_1, (i == 0) ? (i = Bit_SET) : (i = Bit_RESET));
 
           Delay_Ms(1000);

        }
	}
}