Timer

Registers

struct timer_register_map

This struct maps the registers of the timer. The names of the struct members correspond to the registers from the Datasheet:

struct i2c_register_map {
    uint32_t CS;
    uint32_t CLO;
    uint32_t CHI;
    uint32_t C0;
    uint32_t C1;
    uint32_t C2;
    uint32_t C3;
};

extern volatile struct timer_register_map *TMR

TMR = (volatile struct timer_register_map *)timer_base_ptr;

By using this variable, the registers of the timer can be accessed like this TMR->CLO.

Functions

int timer_map(void)

This function maps the timer registers. It calls peripheral_map() with the values TIMER_OFFSET and TIMER_SIZE. On error -1 is returned.

void timer_unmap(void)

This function unmaps the timer registers.

void timer_read(uint64_t *counter);

This function reads the value of the timer into the 64-bit varbiale pointed to by counter.