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PES-Assignment-4

Author: Arpit Savarkar

Repository Comments

Contains Code for Assignment 4 for Principals of Embedded Systems Software, ECEN-5813, Fall 2020 Kindly Consider the Flags which print the Debug Printf are only coded in the DEBUG and not in the Release mode(PRODUCTION Flag), incase of any discrepancy contact [email protected]

Repository for PES-Assignment 1

Source Code for this assignment can be found under source/ , Interrupts have been used for this Assignment

  • Assignment_4_Buffaiti.c - The main script which demonstrates the start-up pattern and interaction between the slider and the LEDs on FRDM KL25Z
  • led.h - Header file of led.c defining the led functions
  • led.c - File containing LED Clock Gating Initialization and function which sets LED Color
  • statemachine.h - Header file of statemachine.c defining State Machine Function Prototypes and Interrupts
  • statemachine.c - File containing Statemachine functionalities implemented in accordance to Traffic Light State Machine
  • State Machine
  • cap_sensor.h - Header file of delay.c defining functions to access and run the capacitive sensor
  • cap_sensor.c - File containing definitions for clock gating and accessing the Capacitive Sensor
  • switch.h - Header file of switch.c defining functions to access an external Push Button
  • switch.c - File containing definitions for clock gating and accessing an External Push Button
    • PTA5 must be used to Connect the Switch Wiring, along with Necessary GROUND and POWER
  • temp_systick.h - Header file of temp_systick.c defining functions to Instantiate
  • switch.c - File containing definitions for clock gating and accessing an External Push Button

Project Comments

This projects implements the following routine :

  • At program startup, Blinkenlights will “test” the LED by blinking in the following pattern:
    • When the traffic light is in the STOP state, Buffahiti residents use the color #611E3C
    • When the traffic light is in the GO state, Buffahiti residents use the color #229622
    • When the traffic light is in the WARNING state, Buffahiti residents use the color #FFB200
    • When someone presses the button to cross the street (CROSSWALK state), the traffic light is blinking with the color #001030.
    • In the CROSSWALK state, the light blinks 250 msec off, 750 msec on. No other mode has the light blinking.

Installation/Execution Notes

Developed using MCUExpresso on Linux.
Two configurations:
-D (Build Flags)
DEBUG Target - Prints DEBUG Messages to UART terminal.
Release Target - PRODUCTION Flag used, no debug messages are printed on UART Terminal

Extra Credit

Extra Credit Functionality to change state with using a button instead of Capactitive Touch Sensor is implemented Both Capacitive Touch and Push Button Can be used - PTA5 must be used to Connect the Switch Wiring, along with Necessary GROUND and POWER