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Gopals0108
Visitor II
Dec 21, 2024 6:10 AM UTC
Solved

LED toggling

I am using NUCLEO-U575ZI-Q eval board. I am trying to blink RGB LEDs. But RED LED which is connected GPIOG pin 2 is not toggling.

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Tesla DeLorean
Tesla DeLoreanBest answer
Guru
Dec 21, 2024 6:16 AM UTC

Have you used commands to enable the VDDIO2 power to the GPIOG bank?

No code shown

HAL_PWREx_EnableVddIO2();

 

#define LED3_PIN GPIO_PIN_2
#define LED3_GPIO_PORT GPIOG
#define LED3_GPIO_CLK_ENABLE() __HAL_RCC_GPIOG_CLK_ENABLE()
#define LED3_GPIO_CLK_DISABLE() __HAL_RCC_GPIOG_CLK_DISABLE()

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3 replies

Tesla DeLorean
Tesla DeLoreanBest answer
Guru
Dec 21, 2024 6:16 AM UTC

Have you used commands to enable the VDDIO2 power to the GPIOG bank?

No code shown

HAL_PWREx_EnableVddIO2();

 

#define LED3_PIN GPIO_PIN_2
#define LED3_GPIO_PORT GPIOG
#define LED3_GPIO_CLK_ENABLE() __HAL_RCC_GPIOG_CLK_ENABLE()
#define LED3_GPIO_CLK_DISABLE() __HAL_RCC_GPIOG_CLK_DISABLE()

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    sbaker
    Associate
    Jan 28, 2025 2:48 PM UTC

    I had the same issue. Adding a call to HAL_PWREx_EnableVddIO2() fixed it. Thank you.

    Andrew Neil
    Andrew Neil
    Super User
    Dec 21, 2024 10:43 AM UTC

    Welcome to the forum.

    More details required - see: How to write your question to maximize your chances to find a solution

     

    @Gopals0108 wrote:

    RED LED which is connected GPIOG pin 2 is not toggling.

    Have you checked (board User Manual & Schematics) that there's nothing else on the board occupying those pins?

     

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