Read data from ADC.
int32_t adc_dma_read( struct adc_dma_descriptor *const descr, uint8_t *const buffer, const uint16_t length )
Type: struct adc_dma_descriptor Struct *const
The pointer to the ADC descriptor
A buffer to read data to
Type: const uint16_t
The size of a buffer
Type: int32_t
The number of bytes read.