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The Embedded Software Development Workflow: From Code to Circuit
Developing software for microcontroller embedded systems follows a distinct workflow. It begins on a host computer (like a PC) with writing and editing the source code in a language like C or C++, using a text editor or an Integrated Development Environment (IDE).
The next step is compilation and cross-compilation. A special compiler, called a cross-compiler, translates the human-readable source code into machine code that the specific MCU's architecture can understand. The output is usually a .hex or .bin file.
This file is then flashed (or programmed) onto the MCU's non-volatile memory (Flash) using a hardware tool called a programmer or debug probe (like an ST-Link or J-Link). Finally, the developer debugs and tests the system. The debug probe allows for stepping through the code, setting breakpoints, and inspecting variables while the program runs on the actual hardware, which is critical for verifying real-time behavior and hardware interaction.
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