Bare Metal Programming in Arm Cortex-M Processor (TM4C123)

Explore the ARM Cortex-M processors focusing on RISC architecture, its instruction set, load-store model, and the three-stage pipeline, with notes on compiler versus hardware complexity.

Explore the ARM architecture core, its RISC design, high code density, and power efficiency, and learn how Cortex-A, Cortex-R, and Cortex-M families fit smartphones, safety applications, and embedded systems.

this lecture presents the basic structure of arm cortex-m microcontrollers, detailing the arm core, peripherals, and buses such as hp bus and apb, plus memory controller and bus master/slave roles.

Learn about the Arm Cortex-M 32-bit processor family, licensing, and variants from Cortex-M0 to Cortex-M7, compare microcontrollers with microprocessors, and note high code density and energy efficiency.

Explore Arm Cortex-M architecture, including von Neumann vs Harvard designs and the load-store model with register banks that move data between memory and processing.

Explore the hardware and software components of the data privacy series launchpad used for bare-metal programming on the TM4C123, including the debugger, USB ports, LCD, GPIOs, and clock.

Install essential software and drivers for the privacy series launchpad, including the Solaris ICD driver and USB drivers, then configure the TI kernel IDE packages for the TM4C123.

Explore how an ARM Cortex-M4 CPU executes code on bare metal, tracing registers, memory layout, and debugging with the simulator, including local versus global variables and step-by-step execution.

Explain big endian and little endian storage of 16-bit data, showing how the most significant and least significant bytes occupy memory addresses on an arm cortex processor.

Explore the role of pointers in C for accessing memory in a microprocessor, declaring and using pointers, storing addresses, and reading or writing data in RAM.

Learn bare-metal programming on tm4c123 by using raw addresses and pointers to enable gpio port f, set pins as output, and blink red, green, and blue leds.

Explore how to replace pointer-based access with C preprocessor defines to map TM4C123 register addresses, enabling direct memory writes for a simple blink program.

Use the Texas Instruments vendor header file for TM4C123 in Keil to access all registers by name, avoiding manual address definitions, and leverage the microcontroller's memory map.

Explore how bitwise operators in c work on 32-bit variables, including and, or, xor, not, for use in embedded applications.

Learn to set and clear a single bit in a microcontroller register with bitwise operators, using one left shift and masking on a 32-bit data register without disturbing other bits.

Learn how to add source and header files in a Keil uVision project, create a time delay function in a separate file, and use prototypes to share it with main.

Learn how to declare and use C structures to group hardware and software variables, access them with the dot operator, and create instances or arrays using typedef for embedded programming.

Explore how CMSIS standard streamlines ARM Cortex-M programming by organizing core, vendor, and user files into startup, system, and device headers within a cohesive CMSIS file structure.

Create a CMSIS-like peripheral access layer for TM4C123 by building a register structure and base address to blink the LED on the LaunchPad.

Configure a CMSIS-based project for a Texas Instruments ARM Cortex-M microcontroller on the LaunchPad by importing vendor startup files, enabling the device runtime, and blinking an LED using peripheral registers.

Learn to build a bare-metal lcd blink project on the TM4C123, enable the gpio clock, configure pb2 as output, and toggle it in a loop to blink the lcd.

Learn how to interface input devices with a microcontroller using pulldown logic and reversed wiring with a button to ground, detailing resistor roles and switch states.

Learn how to interface push buttons with the TM4C123 launchpad by configuring ports, enabling clocks, using internal pull-up resistors, and reading button states to drive an LCD.