1. Project Creation:

   • Open PSoC Creator.

   • Go to File > New > Project.

   • Choose the target device: PSoC5LP CY8CKIT-050 (CY8C5868AXI-LP035 chip).

   • Select "Empty Schematic" and name the project "Timer_Countdown".

2. Hardware Configuration:

• Go to the Component Catalog on the right side of the screen, search for the following components and drag them to the TopDesign schematic:

  • Timer

  • Digital Input Pin (for button)

  • 7-Segment Display

• Arrange the components to represent the Timer control logic and display setup.

3. Component Configuration:

• • Double-click on the Digital Input Pin, rename it to "START_BUTTON", and set the drive mode to Resistive Pull Up.

  • Double-click on the Timer component, set the timer period according to the desired countdown duration (e.g., 1 minute = 60,000 ms for a 1-second tick), and configure it to generate an interrupt on overflow.

  • Configure the 7-Segment Display to handle four digits, suitable for displaying minutes and seconds.

  • In the workspace explorer, double-click on Pins under Timer_Countdown.cydwr and set Port to:

    • P2[0] for the 7-segment display common anode control (for example)

    • P3[0-7] for the 7-segment display segments (A-G and DP)

    • P1[0] for "START_BUTTON"

4. Programming and Results:

• Double-click on main.c in the workspace explorer under source files.

• Add the code to initialize the Timer, handle countdown logic in the Timer interrupt, and update the 7-segment display.

• Build the design by clicking on "Build" or pressing Shift+F6.

• Verify and resolve any warnings or errors.

• Connect the PSoC 5LP to your computer using the USB cable.

• Click on "Program" or press Ctrl+F5 to upload the code to the PSoC.

• Test the Timer by pressing the button to start the countdown and observing the time displayed on the 7-segment display.

• Verify that the Timer correctly counts down to zero, handling interruptions and displaying the correct remaining time.