【Jihai APM32F407】11, analyze ADC and DMA routines

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【Jihai APM32F407】11, analyze ADC and DMA routines [Copy link]

 

The reason I run this routine is because I wrote it into the plan when I made the evaluation plan.

First I ran the example program and found that it compiled and ran smoothly.

I looked at the datasheet: ADC is on PA0

And DAM in the reference manual:

The program registers DMA when ADC is initialized:

    ADC_EnableDMA(ADC1);
    ADC_EnableDMARequest(ADC1);

Then the DMA initialization is just to store the number in a variable, and this number is converted by ADC (uint32_t) & ADC1->REGDATA;

I think DMA is a bit troublesome for this program. Can it be directly retrieved after conversion?

DMA is a porter, a porter, and a stick soldier. It takes a long piece of code to use it.

I think DMA is very useful in USART communication.

After all, early microcontrollers did not have DMA.

But I want to thank this example, one example, DMA and ADC are evaluated.