🐞 fix:禅道问题：45370、45353、45351，中微厂家更改

Firmware/Source/Device/Cmsemicon/BAT32A239/Library/Driver/src/adc.c

@@ -166,27 +166,34 @@ uint16_t ADC_Converse(ADC_Channel_t ch, uint32_t times, uint16_t *buf)
 	volatile uint8_t  flag;
 	uint32_t total = 0;
 
-	INTC_DisableIRQ(ADC_IRQn);     // disable INTAD interrupt 
+	if(times == 0)
+	{
+		return 0;
+	}
+	else
+	{
+		INTC_DisableIRQ(ADC_IRQn);     // disable INTAD interrupt 
 
-	ADC->ADM0 &= ~ADC_Enable;
+		ADC->ADM0 &= ~ADC_Enable;
 
-	ADC->ADM1 |= ADC_Conv_Oneshot; //enable one-shot convertion
-	ADC->ADTRG = ADC_ExternalTrig_Software;
-	ADC->ADM0 |= ADC_Enable;
+		ADC->ADM1 |= ADC_Conv_Oneshot; //enable one-shot convertion
+		ADC->ADTRG = ADC_ExternalTrig_Software;
+		ADC->ADM0 |= ADC_Enable;
 
-	ADC->ADS  = ch;
+		ADC->ADS  = ch;
 
-	for(i=0; i<times;i++)
-	{
-		ADC->ADM0 |= ADC_Start_Cmp;  //adc start
-		
-		while(INTC_GetPendingIRQ(ADC_IRQn) == 0);
-		INTC_ClearPendingIRQ(ADC_IRQn); 	// clear INTAD interrupt flag 
+		for(i=0; i<times;i++)
+		{
+			ADC->ADM0 |= ADC_Start_Cmp;  //adc start
+			
+			while(INTC_GetPendingIRQ(ADC_IRQn) == 0);
+			INTC_ClearPendingIRQ(ADC_IRQn); 	// clear INTAD interrupt flag 
 
-		*buf++ = ADC->ADCR;
-		total += ADC->ADCR;
+			*buf++ = ADC->ADCR;
+			total += ADC->ADCR;
+		}
+		return (total / times); // return average value
 	}
-	return (total / times); // return average value
 }