# Push/Pull Button to Turn ON/OFF LED via PDL

## *Lab Objective:*

     In this lab, participants will utilize the Peripheral Driver Library (PDL) to interface with a push/pull button linked to the Infineon PSoC 6 microcontroller. The task will involve programming the microcontroller such that an LED's state is toggled between ON and OFF upon button actuation. This exercise is designed to provide participants with a deeper understanding of direct peripheral interactions, emphasizing the capabilities and advantages of using PDL for efficient and streamlined hardware control.

## 🔥 Requirements

<table><thead><tr><th width="429">Resources</th><th>Links</th></tr></thead><tbody><tr><td>Computer</td><td>💻</td></tr><tr><td>ModusToolbox™ software v3.0 or later</td><td><a href="https://www.infineon.com/modustoolbox">Link</a></td></tr><tr><td>CY8CKIT-062S2-43012 Infineon Board</td><td><a href="https://github.com/Advance-Innovation-Centre-AIC/BIIL_MTB-100_Hello_World_and_LED_Blinking_Programming_Template/assets/88732241/0215501d-b774-4045-8e64-ef49e28d8404">Link</a></td></tr><tr><td>Technical Report</td><td><a href="https://www.dropbox.com/scl/fi/amaxc94pte0ut2i1r5ewx/Technical-Report-Lab00.paper?rlkey=b3xm3vrerz9xgv1glb30cvy9z&#x26;dl=0">dropbox</a></td></tr></tbody></table>

## 🚩 Let start

### Create Application

* 👉 Open Eclipse IDE ModusToolbox&#x20;

<figure><img src="/files/yvdAREduukvnrZOgM0Dj" alt=""><figcaption><p>Create application</p></figcaption></figure>

### Enable Button and LED Pin

<figure><img src="/files/Csm9tM4UtCHWGjiQIMlE" alt=""><figcaption><p>Enable Button Pin</p></figcaption></figure>

<figure><img src="/files/v2tilhEsCAFBsSmtLge1" alt=""><figcaption><p>Enable LED Pin</p></figcaption></figure>

### Coding

* Coding: Open the main.c file and add the following code to the main(void) function.

```c
int main(void)
{
    cy_rslt_t result;

    /* Initialize the device and board peripherals */
    result = cybsp_init() ;
    if (result != CY_RSLT_SUCCESS)
    {
        CY_ASSERT(0);
    }
    /* Enable global interrupts */
    __enable_irq();

    // Embedded systems to redirect the standard input/output (I/O) functions like printf() and scanf()
    cy_retarget_io_init(CYBSP_DEBUG_UART_TX, CYBSP_DEBUG_UART_RX, CY_RETARGET_IO_BAUDRATE);
    printf("\x1b[2J\x1b[;H");

    for (;;)
    {
    	//Button is active low -> 0 is pressed and 1 is not pressed.
    	if(!Cy_GPIO_Read(CYBSP_USER_BTN_PORT, CYBSP_USER_BTN_NUM)){
    		Cy_GPIO_Clr(CYBSP_USER_LED1_PORT, CYBSP_USER_LED1_NUM); // Turn On LED
    		printf("Button Pressed --> LED ON \r\n");
    		Cy_SysLib_Delay(500U);
    	}
    	else{
    		Cy_GPIO_Set(CYBSP_USER_LED1_PORT, CYBSP_USER_LED1_NUM);
    		printf("Button not Pressed --> LED OFF \r\n"); // Turn Off LED
    		Cy_SysLib_Delay(500U);
    	}
    }
}
```

### Build the Application

* 👉 Build the Application

<figure><img src="/files/LLLuPe1notDDF2T45jiX" alt=""><figcaption><p>Build Application</p></figcaption></figure>

### Launching the Application

* 👉 Launching the Application

  * Before launching the program to the board, make sure that you have already connected the board to the computer through a USB cable.<br>

    <figure><img src="https://github.com/Advance-Innovation-Centre-AIC/BIIL_MTB-100_Hello_World_and_LED_Blinking_Programming_Template/assets/88732241/7a6bb6ef-cb63-4613-98a1-42f9617ad724" alt="" width="188"><figcaption><p>set up USB cable</p></figcaption></figure>
  * Launching Program

  <figure><img src="/files/1AI685hXop9QfBRA9ZWW" alt=""><figcaption><p>Launching Program</p></figcaption></figure>
* 👉 Check the Result

<figure><img src="/files/absRBc6EgaGSISyRTaZ7" alt=""><figcaption></figcaption></figure>

> #### 🎉 <mark style="color:blue;">Congratulations! You can now complete Lab104</mark>

## Supported toolchains (make variable 'TOOLCHAIN')

* GNU Arm® embedded compiler v10.3.1 (`GCC_ARM`) - Default value of `TOOLCHAIN`
* Arm® compiler v6.16 (`ARM`)
* IAR C/C++ compiler v9.30.1 (`IAR`)

## Supported kits (make variable 'TARGET')

* [PSoC™ 62S2 Wi-Fi Bluetooth® pioneer kit](https://www.infineon.com/CY8CKIT-062S2-43012) (`CY8CKIT-062S2-43012`)
* [PSoC™ 62S1 Wi-Fi Bluetooth® pioneer kit](https://www.infineon.com/CYW9P62S1-43438EVB-01) (`CYW9P62S1-43438EVB-01`)
* [PSoC™ 62S1 Wi-Fi Bluetooth® pioneer kit](https://www.infineon.com/CYW9P62S1-43012EVB-01) (`CYW9P62S1-43012EVB-01`)
* [PSoC™ 62S3 Wi-Fi Bluetooth® prototyping kit](https://www.infineon.com/CY8CPROTO-062S3-4343W) (`CY8CPROTO-062S3-4343W`)

## Related resources

| Resources                       | Links                                                                                                                                                      |
| ------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ModusToolbox™ Software Training | [link](https://www.dropbox.com/sh/waj898o4o8eccx0/AAB3hBBaIQo2OvJ5-fubGJIha/training-modustoolbox-level1-getting-started-master/Manual/Ch2-Tools.pdf?dl=0) |

## Other resources

Infineon provides a wealth of data at [www.infineon.com](http://www.infineon.com) to help you select the right device, and quickly and effectively integrate it into your design.

## Document history

Document title: *BILL\_MTB-104* – *GPIO-PDL Button with LED Template*<br>

<table><thead><tr><th width="149">Version</th><th>Description of change</th></tr></thead><tbody><tr><td>1.0.0</td><td>Lab 104: Learn basic GPIO control with PSoC 6 using Push/Pull Button to Turn ON/OFF LED via PDL</td></tr></tbody></table>

## Authors:

* *Assoc. Prof. Wiroon Sriborrirux*
* *Mr. Sriengchhun Chheang*
* *Mr. Sabol Socare*<br>

<br>

***

© BDH Corporation, 2022-2023


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