hpm6750/controller_yy_app/hardware/hard_system_time.c

#include "board.h"
#include "hpm_gptmr_drv.h"
#include "hard_system_time.h"
#include "test.h"
// 需要修改分频配置
#define SYSTEM_TIMER_0               HPM_GPTMR0
#define SYSTEM_TIMER_0_CLK_NAME      clock_gptmr0
#define SYSTEM_TIMER_0_CH            0
#define SYSTEM_TIMER_0_IRQ           IRQn_GPTMR0
#define SYSTEM_TIMER_0_TICK_US       (1)
#define SYSTEM_TIMER_0_RELOAD        0xFFFFFFFF

void system_time_init(void)
{
    uint32_t gptmr_freq;
    gptmr_channel_config_t config;


   
    clock_set_source_divider(SYSTEM_TIMER_0_CLK_NAME, clk_src_osc24m, 24); // 1Mhz
    clock_add_to_group(SYSTEM_TIMER_0_CLK_NAME, 0); // 添加到组
    gptmr_freq = clock_get_frequency(SYSTEM_TIMER_0_CLK_NAME);
    printf("timer0 fre: %d\r\n", gptmr_freq);
    gptmr_channel_get_default_config(SYSTEM_TIMER_0, &config);
    config.reload = SYSTEM_TIMER_0_RELOAD; // 32bit timer0 71.58min
    gptmr_channel_config(SYSTEM_TIMER_0, SYSTEM_TIMER_0_CH, &config, false);
    gptmr_start_counter(SYSTEM_TIMER_0, SYSTEM_TIMER_0_CH);

    gptmr_enable_irq(SYSTEM_TIMER_0, GPTMR_CH_RLD_IRQ_MASK(SYSTEM_TIMER_0_CH));
    intc_m_enable_irq_with_priority(SYSTEM_TIMER_0_IRQ, 1);
}


SDK_DECLARE_EXT_ISR_M(SYSTEM_TIMER_0_IRQ, timer0_isr)
void timer0_isr(void)
{
    if (gptmr_check_status(SYSTEM_TIMER_0, GPTMR_CH_RLD_STAT_MASK(SYSTEM_TIMER_0_CH))) {
        gptmr_clear_status(SYSTEM_TIMER_0, GPTMR_CH_RLD_STAT_MASK(SYSTEM_TIMER_0_CH));
        //time_hookfunction();
        // printf("timer test\r\n");
    }
}


unsigned int hard_micros(void)
{ 
  unsigned int ret;
  // 返回当前定时器通道计数值
  ret = gptmr_channel_get_counter(SYSTEM_TIMER_0,SYSTEM_TIMER_0_CH, gptmr_counter_type_normal);
  return ret;
}
/**
 * @brief 微秒延时
 */
static void hard_delay_us(unsigned int us)
{
    unsigned int start = hard_micros();
    while ((hard_micros() - start) < us) {
        // 忙等待
    }
}

/**
 * @brief 毫秒延时
 */
static void hard_delay_ms(unsigned int ms)
{
    hard_delay_us(ms * 1000);
}


/*timer0 test 2026/3/14 测试通过*/
#ifdef TIMER0_TEST
#include "bsp_V8M_YY_led.h"
void timer0_test(void)
{
  system_time_init();
  v8m_yy_led_init();
  while(1)
  {
    hard_delay_ms(1000);
    v8m_yy_led_toggle(V8M_YY_LED_G);
    printf("1000ms \r\n");
  }
}
#endif