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#define PERIPH_BASE           ((uint32_t)0x40000000)
#define AHB1PERIPH_BASE       (PERIPH_BASE + 0x00020000)
#define RCC_BASE              (AHB1PERIPH_BASE + 0x3800)
#define RCC_APB1ENR           (*(volatile uint32_t *)(RCC_BASE + 0x1C))

#define APB1PERIPH_BASE       (PERIPH_BASE + 0x00000000)
#define TIM2_BASE             (APB1PERIPH_BASE + 0x0000)
#define TIM3_BASE             (APB1PERIPH_BASE + 0x0400)

#define TIM2                 ((TIM_TypeDef *) TIM2_BASE)
#define TIM3                 ((TIM_TypeDef *) TIM3_BASE)

typedef struct
{
    volatile uint32_t CR1;
    volatile uint32_t CR2;
    volatile uint32_t SMCR;
    volatile uint32_t DIER;
    volatile uint32_t SR;
    volatile uint32_t EGR;
    volatile uint32_t CCMR1;
    volatile uint32_t CCMR2;
    volatile uint32_t CCER;
    volatile uint32_t CNT;
    volatile uint32_t PSC;
    volatile uint32_t ARR;
    volatile uint32_t RCR;
    volatile uint32_t CCR1;
    volatile uint32_t CCR2;
    volatile uint32_t CCR3;
    volatile uint32_t CCR4;
    volatile uint32_t BDTR;
    volatile uint32_t DCR;
    volatile uint32_t DMAR;
} TIM_TypeDef;

void Timer1_Init(void)
{
    RCC_APB1ENR |= (1 << 0); // Enable TIM2 clock
    
    TIM2->PSC = 0; // Prescaler value
    TIM2->ARR = 110; // Auto-reload value
    TIM2->CR1 |= (1 << 0); // Enable the timer
}

void Timer2_Init(void)
{
    RCC_APB1ENR |= (1 << 1); // Enable TIM3 clock
    
    TIM3->PSC = 79; // Prescaler value for 1 MHz timer clock (8 MHz / (PSC+1))
    TIM3->ARR = 1778 - 1; // Auto-reload value for 1778 microseconds
    TIM3->CR1 |= (1 << 0); // Enable the timer
}

int main(void)
{
    Timer1_Init();
    Timer2_Init();
    
    while (1)
    {
        // Main loop
    }
}
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