Digital Computers ARM Project

Debugging Environment : Keil uVision 4.0
Hardware : Texas Instrument ARM Cortex-M4F Tiva C Series TM4C123G Launch Pad
Software Language : Thumb Assembly

Lab0 - Basic Input / Output

• Tried different memory addressing modes to test input and output

Lab1 - Flash LED

• Used on-board RAM instead of Flash memory to flash an LED with 1Hz frequency

Lab2 - Subroutines and Parameters Passing

• Made and called small subroutines to execute the main program
• Passed parameters and status to the subroutines
• Implemented Morse code transmitting system using LED with time delay configurations

Lab3 - Input / Output Interfacing

• Controlled the LEDs and switch for input and output interfacing
• Used simple counter subroutines for time increment
• Implemented a reflex meter that catches the human reaction time to the LED light and the switch

Lab4 - Interrupt Handling

• Wrote an interrupt service routine(ISR) which is triggered when the user presses the SW1 button
• Implemented a random number generator to configure a falling edge SW1 interrupt