Memory Operations

Abstract

Memory management requires special consideration in embedded systems. Therefore, we will deal with memory-based operations, especially for the STM32F4 microcontroller, in this chapter. To do so, we will first consider the bus architecture, working principles of RAM, and flash memory. Then, we will focus on memory management in C, C++, and MicroPython languages. While doing so, we will focus on pointer usage in C and C++ languages. We will also provide details on how MicroPython handles memory. Afterward, we will introduce peripheral units as direct memory access (DMA) and flexible memory controller (FMC) available in the STM32F4 microcontroller. We will provide usage examples on these units via different approaches. Hence, the reader can benefit from them in advanced operations. As the end of the chapter application, we will add memory-based properties to the robot vacuum cleaner developed throughout the book.