main.c

Go to the documentation of this file.

 
#include <stdint.h>
 
#include "ra8_attributes.h"
#include "ra8_board_ek_ra8d2.h"
#include "ra8_boot_entry.h"
#include "ra8_err.h"
#include "ra8_isr.h"
#include "ra8_time.h"

typedef enum : uint32_t {
  k_blink_cpu_hz_at_reset = 8400000U, 
} blink_clock_t;

typedef enum : uint32_t {
  k_blink_half_period_ms = 500U, 
} blink_period_t;

volatile uint32_t g_blink_hal_tick = 0U;
 
/* Forward declarations -- definitions appear after main() so the
 * audit_init_order linter sees the canonical CGC -> TIME -> peripheral
 * sequence in source order. */
[[nodiscard]] RA8_INTERNAL static ra8_err_t internal_blink_pins_init(void);
[[nodiscard]] RA8_INTERNAL static ra8_err_t internal_blink_pins_toggle_all(void);
 
void main(void)
{
  if (ra8_time_init(k_blink_cpu_hz_at_reset) != k_ra8_ok) {
    while (1) {
      __asm__ volatile("wfi");
    }
  }
 
  if (internal_blink_pins_init() != k_ra8_ok) {
    while (1) {
      __asm__ volatile("wfi");
    }
  }
 
  ra8_isr_globals_enable();
 
  while (1) {
    if (internal_blink_pins_toggle_all() != k_ra8_ok) {
      break;
    }
    g_blink_hal_tick += 1U;
    ra8_delay_ms(k_blink_half_period_ms);
  }
 
  while (1) {
    __asm__ volatile("wfi");
  }
}

[[nodiscard]] RA8_INTERNAL static ra8_err_t internal_blink_pins_init(void)
{
  for (uint8_t i = 0U; i < (uint8_t)k_ra8_board_led_count; ++i) {
    const ra8_err_t err = ra8_board_led_init((ra8_board_led_id_t)i);
    if (err != k_ra8_ok) {
      return err;
    }
  }
  return k_ra8_ok;
}

[[nodiscard]] RA8_INTERNAL static ra8_err_t internal_blink_pins_toggle_all(void)
{
  for (uint8_t i = 0U; i < (uint8_t)k_ra8_board_led_count; ++i) {
    const ra8_err_t err = ra8_board_led_toggle((ra8_board_led_id_t)i);
    if (err != k_ra8_ok) {
      return err;
    }
  }
  return k_ra8_ok;
}