[Mike] wanted to drive several SPI peripheral from a PIC32. He shows how much latency his conventional interrupt handlers were taking away from his main task. He needed something more efficient. So he ...

In the most simple computer system architecture, all control lies with the CPU (Central Processing Unit). This means not only the execution of commands that affect the CPU’s internal register or cache ...

If it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck.” The DMA looks like a duck, swims like a duck, and quacks like a duck — yet many insist it is a chicken.