C++ (Cpp) EEFC_FRR Examples

Example #1

File: sam3x.c Project: joshgrob/blackmagic

static bool sam3x_cmd_gpnvm_get(target *t)
{
	uint32_t base = sam3x_flash_base(t);

	sam3x_flash_cmd(t, base, EEFC_FCR_FCMD_GGPB, 0);
	tc_printf(t, "GPNVM: 0x%08X\n", target_mem_read32(t, EEFC_FRR(base)));

	return true;
}

Example #2

File: target_atmel_cm4.c Project: jeffrizzo/edbg

//-----------------------------------------------------------------------------
static void target_select(target_options_t *options)
{
  uint32_t chip_id, chip_exid;

  // Set boot mode GPNVM bit as a workaraound
  dap_write_word(EEFC_FCR(0), CMD_SGPB | (1 << 8));

  // Stop the core
  dap_write_word(DHCSR, 0xa05f0003);
  dap_write_word(DEMCR, 0x00000001);
  dap_write_word(AIRCR, 0x05fa0004);

  chip_id = dap_read_word(CHIPID_CIDR);
  chip_exid = dap_read_word(CHIPID_EXID);

  for (device_t *device = devices; device->chip_id > 0; device++)
  {
    if (device->chip_id == chip_id && device->chip_exid == chip_exid)
    {
      uint32_t fl_id, fl_size, fl_page_size, fl_nb_palne, fl_nb_lock;

      verbose("Target: %s\n", device->name);

      for (uint32_t plane = 0; plane < device->n_planes; plane++)
      {
        dap_write_word(EEFC_FCR(plane), CMD_GETD);
        while (0 == (dap_read_word(EEFC_FSR(plane)) & FSR_FRDY));

        fl_id = dap_read_word(EEFC_FRR(plane));
        check(fl_id, "Cannot read flash descriptor, check Erase pin state");

        fl_size = dap_read_word(EEFC_FRR(plane));
        check(fl_size == device->flash_size, "Invalid reported Flash size (%d)", fl_size);

        fl_page_size = dap_read_word(EEFC_FRR(plane));
        check(fl_page_size == device->page_size, "Invalid reported page size (%d)", fl_page_size);

        fl_nb_palne = dap_read_word(EEFC_FRR(plane));
        for (uint32_t i = 0; i < fl_nb_palne; i++)
          dap_read_word(EEFC_FRR(plane));

        fl_nb_lock =  dap_read_word(EEFC_FRR(plane));
        for (uint32_t i = 0; i < fl_nb_lock; i++)
          dap_read_word(EEFC_FRR(plane));
      }

      target_device = *device;
      target_options = *options;

      target_check_options(&target_options, device->flash_size * target_device.n_planes,
          device->page_size * PAGES_IN_ERASE_BLOCK);

      return;
    }
  }

  error_exit("unknown target device (CHIP_ID = 0x%08x)", chip_id);
}