Part 6 focuses on implementing the master-side firmware required to perform write operations to specific registers on the Modbus RTU slave. This section covers constructing valid write request frames, managing data payload formatting, and...
READ MOREPart 1 introduces the STM32F429-Discovery board, covering its onboard resources, including the integrated display, and guides you through setting up the development environment using STM32CubeMX and importing the project into STM32CubeIDE. It...
READ MOREIn this fourth part of the guide, we move beyond simple responses and begin building a basic web user interface that runs directly from the STM32. The web assets will be hosted by the Mongoose HTTP server, demonstrating how embedded devices can...
READ MOREPart 5 focuses on implementing address filtering so that the Modbus RTU slave responds only to requests directed to its assigned slave address. This ensures that in a multi-device RS-485 network, each slave processes and responds only to frames...
READ MOREOne Pulse Mode (OPM) in STM32 timers allows the generation of a single, precisely timed pulse in response to a trigger event, after which the timer automatically stops. This feature is ideal for applications requiring accurate one-shot signal...
READ MOREPart 4 focuses on implementing the slave-side response to a Modbus RTU read request issued by the master. In this section, the STM32-based slave processes the received frame, validates the CRC and addressing, and returns a properly formatted...
READ MOREIn this third part of the guide, we implement a minimal HTTP server using Mongoose on STM32 to validate end-to-end web functionality. The server will respond with the system uptime, confirming that the TCP/IP stack, Ethernet interface, and HTTP...
READ MOREIn this third part of the guide, we will build upon the pixel and windowing functions to implement a draw-bitmap routine capable of rendering full images on the GC9A01 display. This will allow us to efficiently transfer and display pre-formatted...
READ MOREIn this second part of the guide, we move from configuration to implementation by developing the GC9A01 driver header and source files for STM32. We will initialize the LCD controller and implement a basic draw-pixel function, using it to render...
READ MOREIn this third part, we explain how to enable and disable individual cores on the STM32H747 and control their startup behavior. The section also covers how one core can release or start the other during runtime, enabling coordinated dual-core...
READ MOREIn this second part of the guide, we integrate the Mongoose source and header files into the STM32 project and walk through the required configuration steps for a successful build. We then bring up the Ethernet interface and verify basic network...
READ MOREPart 3 of the guide moves beyond basic link verification and introduces practical Modbus RTU transactions in which the master issues read requests to the STM32-based slave. This section focuses on implementing and validating standard read...
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