There is no problem with a single AD channel single conversion.
ADC10CTL0 = SREF_1+ADC10SHT_2 + REFON+ADC10ON+ ADC10IE ;
ADC10AE0 |= 0x40;
ADC10CTL1 = INCH_6;
ADC10CTL0 |= ENC + ADC10SC;
Set up AD conversion, select channel 6, enable analog input of channel 6, and some related information. Finally, start AD conversion.
Next try AD single channel continuous conversion.
ADC10CTL0|=SREF_0+ADC10SHT_2+MSC+ADC10IE+ADC10ON;
ADC10CTL1|=INCH_6+SHS_0+ADC10SSEL_0+CONSEQ_2;
ADC10AE0 |= 0x40;
ADC10DTC1 = 0x0A;
ADC10SA = 0x200;
ADC10CTL0 |= ENC + ADC10SC;
Set AD and start DTC.
In single conversion, AD will generate an interrupt when it stores the conversion result in AD10MEM; in single-channel multiple conversion, DTC is enabled, then an interrupt will be generated after a complete data transfer. (That is, when the interrupt is enabled, after entering the interrupt program, the AD conversion has been completed and the result has been saved.)
I made a mistake when debugging. I added a statement __bis_SR_register( CPUOFF + GIE ) before setting AD. As a result, the program could not execute when it reached the following statement to set AD. It was stuck there. Haha... I found out that the CPU was disabled.
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