tm4c-gcc
FreeTM4C123 GCC project template.
FreeFree tier
About tm4c-gcc
TM4C123 GCC project template for TI Tiva C Series microcontrollers. This open-source repository provides a complete project scaffold for developing firmware on the ARM Cortex-M4F TM4C123 MCU using the GCC ARM Embedded toolchain. It includes startup code, a scatter loader linker script (scatter.ld), debug utilities (debug.c/debug.h), UARTstdio communication (uartstdio.c), integration with the TivaWare driverlib (driverlib folder), a Makefile for building, and a sample main.c. The template uses the permissive ISC license.
Key Features
Project template for TI Tiva TM4C123 microcontroller
Pre-configured for GCC ARM Embedded (arm-none-eabi) toolchain
Includes startup code (startup.c) and linker script (scatter.ld)
Debug utilities (debug.c/debug.h) for diagnostics
UARTstdio integration (uartstdio.c) for serial communication
TivaWare driverlib support (driverlib folder)
Makefile for building firmware
ISC open-source license
Hosted on GitHub with 8 stars, 3 forks
Pros & Cons
Pros
- Free and open-source (ISC license)
- Simple, lightweight project structure
- Includes essential peripherals (UART, driverlib) out of the box
- Compatible with standard GCC ARM Embedded toolchain
- Debug support via debug.c helper functions
- Permissive license allows use in commercial projects
Cons
- Limited to TM4C123 (Tiva C Series) MCU only
- No built-in RTOS or middleware
- Requires external toolchain and flash utility (e.g., lm4flash)
- Minimal documentation beyond the README
- Repository appears to have no recent updates or releases
Best For
Starting a new embedded project on TI Tiva TM4C123 MCULearning ARM Cortex-M4F bare-metal programming with GCCRapid prototyping with pre-configured driverlib and UARTAcademic or hobbyist embedded systems development
FAQ
What is tm4c-gcc?
It is a GCC project template for the TI Tiva TM4C123 ARM Cortex-M4F microcontroller, providing a ready-to-build firmware project structure with startup code, linker script, driverlib, UARTstdio, and debug utilities.
What toolchain is required?
The template is designed for the GCC ARM Embedded toolchain (arm-none-eabi), available from Launchpad or Ubuntu packages.
How do I flash the firmware?
Use the lm4flash utility from the lm4tools project (https://github.com/utzig/lm4tools) to flash the generated binary to the TM4C123 MCU.
What license is used?
The project is licensed under the ISC license (http://opensource.org/licenses/ISC), a permissive open-source license.
What does the template include?
It includes startup.c, scatter.ld (linker script), main.c, debug.c/debug.h, uartstdio.c, driverlib folder, inc folder, utils folder, and a Makefile.