TM4C123GH6PM Drivers

Drivers for the Texas Instruments Tiva C ARM 4F TM4C123GH6PM microcontroller. It is designed to be easy to use, similar to an arduino, however knowledge of pointers and memory management is reccommended. This project is written in C++.

How to use

ARM GNU Toolchain is required to build this project. OpenOCD is required to download main.elf to the board. Both are freely available to download and install.

You will probably have to add both openOCD and the ARM GNU Toolchain bin folder to your path

To build the example main, navigate to the project directory in a terminal and use the command make.

Use the command openocd -f board/ek-tm4c123gxl.cfg -c "program main.elf" to download the code to the board. Hit the reset switch to reset the processor to see the example code in action.

The command arm-none-eabi-gdb main.elf can be used to access the debugger.

• Use the command target extended-remote:3333 to connect to the board
• Use the command monitor reset halt to halt the processor (required to load code)
• Use the command load to load new code onto the board
• Use the command monitor reset init to restart the processor
• The rest of the GDB commands are the same

Progress

Disclaimer

This project is a work in progress. Class names, function names, enum names, etc.. may change, with out notice, at any time.

Functional Peripherals

• NVIC Interrupts
• PLL system clock for different clock speeds
• GPIO, GPIO interrupt on both edges
• 16/32-bit and 32/64-bit General Purpose Timer in oneshot and periodic mode
• PWM can be initilized for single and double ended complementary mode.
• ADC polling

Test program

Main contains a very simple example program of how to use the drivers.

In Progress To Do's

• Test the ADC interrupt function
• Implement the void initializeDigitalComparator(void); functionality
• Add ADC documentation and update existing
• Refactor GPIO, PWM, GPT code to bring it inline with new framework

Planned in no specific order

• µDMA
• GPIO
  • Poll raw interrupt status
  • interrupt on a single edge
• USB
• UART
• SPI
• I2C
• Systick
• MPU
• FPU
• SBC
• Analog Comparator
• Memory
  • EEPROM
  • Flash
• Hibernate
• Watchdog
• Examples folder

Completed

• Further test the ADC polling function

License

All code is under the the GPl v3 License. Please the read the associated LICENSE file for an in depth licensing agreement

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.

Copyright

Copyright Matthew Hardenburgh 2020. All rights reserved.