main.c

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#include <stddef.h>
#include <stdint.h>
 
#include "ra8_attributes.h"
#include "ra8_board_ek_ra8d2_peripherals.h"
#include "ra8_boot_entry.h"
#include "ra8_cgc.h"
#include "ra8_dual_core.h"
#include "ra8_err.h"
#include "ra8_log.h"

extern uint32_t g_ra8_ls_cpu1_mram_start;
extern uint32_t g_ra8_ls_cpu1_stack_top;

typedef enum : uint32_t {
  k_blink_m33_hil_baud = 115200U, 
} blink_m33_hil_t;

static const uint8_t s_blink_m33_pass_banner[] = "blink_m33: m33 released PASS\r\n";

RA8_INTERNAL static bool internal_console_init(void)
{
  if (ra8_cgc_init() != k_ra8_ok) {
    return false;
  }
  if (ra8_board_uart_console_init((uint32_t)k_blink_m33_hil_baud) != k_ra8_ok) {
    return false;
  }
  return true;
}

RA8_INTERNAL static void internal_emit_pass(void)
{
  (void)ra8_board_uart_console_write(s_blink_m33_pass_banner,
                                     (size_t)(sizeof(s_blink_m33_pass_banner) - 1U));
  (void)ra8_board_uart_console_flush();
}

[[noreturn]] RA8_INTERNAL static void internal_park_forever(void)
{
  while (1) {
    __asm volatile("nop");
  }
}

[[noreturn]] RA8_INTERNAL static void internal_idle_forever(void)
{
  while (1) {
    __asm volatile("wfi");
  }
}

void main(void)
{
  ra8_log_init();
  ra8_log_info("M85", "==== RA8D2 dual-core blink template ====");
  ra8_log_info("M85", "Cortex-M85 primary core online");
 
  /* Bring up the VCOM console so the post-release success path can emit the HIL
   * banner. Best-effort: a failure is narrated over ITM and the demo continues. */
  if (!internal_console_init()) {
    ra8_log_info("M85", "VCOM console init failed -- HIL banner unavailable");
  }
 
  ra8_log_info("M85", "releasing Cortex-M33 secondary core ...");
 
  const ra8_err_t err = ra8_cpu1_release(&g_ra8_ls_cpu1_mram_start, &g_ra8_ls_cpu1_stack_top);
  ra8_log_info_val("M85", "ra8_cpu1_release rc (0 = ok)", (uint32_t)err);
  if (err != k_ra8_ok) {
    ra8_log_info("M85", "release FAILED -- halting");
    internal_park_forever();
  }
 
  ra8_log_info("M85", "M33 released -- it now blinks LED1 (BLUE, P600)");
  /* Additive HIL banner: the M33 has been released (its blink is visually
   * confirmed on the bench); mirror the verdict to VCOM for uart_scrape. */
  internal_emit_pass();
  ra8_log_info("M85", "M85 entering WFI idle -- low-power co-processor model");
  internal_idle_forever();
}