![]() The interfaces use a lot of signals which are susceptible to electromagnetic noise, so it is important to ensure that all of the traces have the same length and impedance. Unfortunately, it is not easy to design a custom PCB with parallel memory modules. Developers have gotten used to having enormous reserves of memory to draw from, so unless an application or library was specifically written for embedded platforms, it probably won’t be able to run with the scant kilobytes of RAM which are included in your average microcontroller.įortunately, most vendors include peripherals for accessing external memory when it is needed, and the STM32’s “Flexible Memory Controller” is surprisingly easy to use. ![]() But software complexity has also grown over time, and as we humans often say about ourselves as we age, it has grown in the wrong direction. ![]() They are much faster and cheaper than the sort of processors that powered “real” computers a few decades ago, and they’re also very power-efficient. ![]()
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