Unable to Turn on Pins of STM32F446RE

// Enable clock access to the port.

// Set pin mode

// Set pin as o/p


#include "stm32f4xx.h"                           // Device header


#define RED                       (1U << 3)      // PIN PA3

#define VIOLET                    (1U << 2)      // PIN PA2

#define GREEN                     (1U << 5)      // PIN PA5 Onboard LED


#define GPIOA_CLOCK               (1U << 0)


#define RED_OUT_BIT               (1U << 6)      // General purpose output

#define VIOLET_OUT_BIT            (1U << 4)      // General purpose output

#define GREEN_OUT_BIT             (1U << 10)     // General purpose output


int main() {

    RCC -> AHB1ENR |= GPIOA_CLOCK;

    GPIOA -> MODER |= RED_OUT_BIT | VIOLET_OUT_BIT | GREEN_OUT_BIT;

    

    while(1) {

        GPIOA -> ODR |= RED | VIOLET | GREEN;

    }

}