main.c

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#include <stdint.h>
 
#include "ra8_attributes.h"
#include "ra8_board_ra8p1.h"
#include "ra8_boot_entry.h"
#include "ra8_device.h"
#include "ra8_err.h"
#include "ra8_isr.h"
#include "ra8_time.h"
 
/*
 * Compile-time proof that the RA8P1 toolchain selection reached this TU: the
 * NPU feature flag is only defined for RA8_DEVICE_RA8P1. If this app is ever
 * built with the RA8D2 toolchain, the build fails loudly here instead of
 * silently producing an RA8D2 image under an RA8P1 name.
 */
#ifndef RA8_HAS_NPU
#error "blink_ra8p1 must be built with cmake/toolchain-ra8p1.cmake (RA8_DEVICE_RA8P1)."
#endif

typedef enum : uint32_t {
  k_blink_cpu_hz_at_reset = 8400000U, 
  k_blink_half_period_ms  = 500U,     
} blink_ra8p1_const_t;

volatile uint32_t g_blink_ra8p1_tick = 0U;

RA8_INTERNAL static void internal_blink_ra8p1_panic_halt(void)
{
  while (1) {
    __asm__ volatile("wfi");
  }
}
 
void main(void)
{
  if (ra8_time_init(k_blink_cpu_hz_at_reset) != k_ra8_ok) {
    internal_blink_ra8p1_panic_halt();
  }
  if (ra8_board_led_init(k_ra8_board_led1) != k_ra8_ok) {
    internal_blink_ra8p1_panic_halt();
  }
 
  ra8_isr_globals_enable();
 
  while (1) {
    if (ra8_board_led_toggle(k_ra8_board_led1) != k_ra8_ok) {
      break;
    }
    g_blink_ra8p1_tick += 1U;
    ra8_delay_ms(k_blink_half_period_ms);
  }
 
  internal_blink_ra8p1_panic_halt();
}