LED Brightness using PWM via HAL
Lab 109
Lab Objective:
This lab demonstrates the process of controlling LED brightness using PWM via Hardware Abstraction Layer (HAL) on a PSoC 6 microcontroller.
🔥 Requirements
🚩 Let start
Create Application

Coding
Coding: Open the main.c file and add the following code to the main(void) function.
int main(void)
{
cy_rslt_t result;
cyhal_pwm_t pwm_obj;
/* Initialize the device and board peripherals */
result = cybsp_init() ;
if (result != CY_RSLT_SUCCESS){
CY_ASSERT(0);
}
__enable_irq();
/* Initialize PWM on the supplied pin and assign a new clock */
result = cyhal_pwm_init(&pwm_obj, CYBSP_USER_LED, NULL);
/* Start the PWM output */
result = cyhal_pwm_start(&pwm_obj);
while(true){
for (int i = 100; i >= 0; i--){
result = cyhal_pwm_set_duty_cycle(&pwm_obj, i, 10000);
cyhal_system_delay_ms(10);
}
}
}
Build the Application

Launching the Application

Note: Before launching the program to the board, make sure that you have already connected the board to the computer through a USB cable.
Result

🎉 Congratulations! You can now complete Lab109
Supported toolchains (make variable 'TOOLCHAIN')
GNU Arm® embedded compiler v10.3.1 (
GCC_ARM
) - Default value ofTOOLCHAIN
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 (
CY8CKIT-062S2-43012
)PSoC™ 62S1 Wi-Fi Bluetooth® pioneer kit (
CYW9P62S1-43438EVB-01
)PSoC™ 62S1 Wi-Fi Bluetooth® pioneer kit (
CYW9P62S1-43012EVB-01
)PSoC™ 62S3 Wi-Fi Bluetooth® prototyping kit (
CY8CPROTO-062S3-4343W
)
Related resources
ModusToolbox™ Software Training
Other resources
Infineon provides a wealth of data at 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-109 – LED Brightness using PWM via HAL
1.0.0
Lab 109: Learn basic GPIO of controlling LED brightness using PWM via Hardware Abstraction Layer (HAL) on a PSoC 6 microcontroller.
Authors:
Assoc. Prof. Wiroon Sriborrirux
Mr. Sriengchhun Chheang
Mr. Sabol Socare
© BDH Corporation, 2022-2023
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