Programming with STM32: Getting Started with the Nucleo Board and C/C++

11

Direct Memory Access (DMA) and the Digital-to-Analog Converter (DAC)

This chapter content is carefully chosen to explain direct memory access (DMA) and the very useful digital-to-analog converter (DAC) peripheral, which takes advantage of efficient DMA data transfers. There are also several demonstration projects shown in the chapter, which show both DMA and DAC operations. The last one shows how to use DMA with the DAC peripheral

DMA

Data is normally transferred by using instructions executed by the Cortex-M core processor. This data is normally sent to or from internal memories and peripherals. This data transfer process consumes valuable processor cycles that could otherwise be put to use within a constrained embedded system. This is ...