Embedded Firmware: UART Protocol Implementation
Budget: $750 – $1,500 USD
Our product runs on a custom embedded system and it now needs a dedicated firmware module that can handle all UART-based communication. I already have the hardware schematic and register map; what is missing is production-ready code that initializes the peripherals, manages interrupts, frames the data, and exposes a clean API the application layer can call.
Here is what I need from you:
• Develop clean, well-documented firmware in C or C++ that brings up the MCU, configures the UART peripheral, and implements reliable transmit/receive routines (including error handling and buffering).
• Follow our existing coding conventions and keep the footprint small so power consumption stays within spec; DMA or low-power sleep modes are welcome where appropriate.
• Provide a concise README and inline comments so my internal team can extend or maintain the code easily.
• Supply a test project (Keil, STM32CubeIDE, or makefile-based—your choice) that exercises all UART functions on the target board.
Acceptance criteria
1. Code compiles with no warnings on the target toolchain.
2. Loop-back and external device tests confirm loss-free data transfer at 9600–115200 bps.
3. All source files, project files, and build instructions are delivered in a single repository or archive.
If you have recent experience writing embedded firmware focused on communication protocols—especially UART—this should be a straightforward engagement. I’m ready to start as soon as I confirm you understand the scope and can commit to a quick turnaround.
Here is what I need from you:
• Develop clean, well-documented firmware in C or C++ that brings up the MCU, configures the UART peripheral, and implements reliable transmit/receive routines (including error handling and buffering).
• Follow our existing coding conventions and keep the footprint small so power consumption stays within spec; DMA or low-power sleep modes are welcome where appropriate.
• Provide a concise README and inline comments so my internal team can extend or maintain the code easily.
• Supply a test project (Keil, STM32CubeIDE, or makefile-based—your choice) that exercises all UART functions on the target board.
Acceptance criteria
1. Code compiles with no warnings on the target toolchain.
2. Loop-back and external device tests confirm loss-free data transfer at 9600–115200 bps.
3. All source files, project files, and build instructions are delivered in a single repository or archive.
If you have recent experience writing embedded firmware focused on communication protocols—especially UART—this should be a straightforward engagement. I’m ready to start as soon as I confirm you understand the scope and can commit to a quick turnaround.