how to enable LE_CODED in NCS1.8.0 periodic_adv ?

[yoyou]

Hello,

NCS1.8.0 Windows10 X64,

periodic_adv had set BT_LE_ADV_OPT_CODED   and   BT_GAP_ADV_FAST_INT_MIN_2 /* 100 ms   */

periodic_sync scan info "Prim: LE 1M, Secn: LE Coded, Interval: 0x03c0 (1200 ms)"

question:

1. why it still  Prim: LE 1M?

2. why the Interval is 1200ms?

thanks 

Best regards,

yuyou

[Simonr]

Hi

What is your bt_le_per_adv_set_param() function setting the periodic advertising parameters as?

Best regards,

Simon

[yoyou]

Hello,

thanks for your reply.

i'v know why the Interval is 1200ms.

Prim: LE 1M, Secn: LE Coded, Interval: 0x0018 (30 ms),

but  it still  Prim: LE 1M.    codes as follow:

/*
 * Copyright (c) 2020 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <bluetooth/bluetooth.h>
#include "common/log.h"

static uint8_t mfg_data[9] = { 0xff, 0xff, 0x00 };
static struct bt_le_ext_adv_cb cb;//call back

static const struct bt_data ad[] = {
	BT_DATA(BT_DATA_MANUFACTURER_DATA, mfg_data, 9 ),
};

void sent(struct bt_le_ext_adv *adv, struct bt_le_ext_adv_sent_info *info)
{
        printk("Sent Data...");
        mfg_data[2]++;
        int err = bt_le_per_adv_set_data(adv, ad, ARRAY_SIZE(ad));
        if (err) {
              printk("Failed (err %d)\n", err);
              return;
        }
}

void main(void)
{
	struct bt_le_ext_adv *adv;
    cb.sent=sent;//call back
	int err;

	printk("Starting Periodic Advertising Demo\n");

	/* Initialize the Bluetooth Subsystem */
	err = bt_enable(NULL);
	if (err) {
		printk("Bluetooth init failed (err %d)\n", err);
		return;
	}
 
        /** Non-connectable extended advertising with @ref BT_LE_ADV_OPT_USE_NAME BT_LE_ADV_OPT_CODED */
       #define BT_LE_EXT_ADV_NCONN_NAME_CODED  BT_LE_ADV_PARAM(BT_LE_ADV_OPT_EXT_ADV | \
						 BT_LE_ADV_OPT_USE_NAME | BT_LE_ADV_OPT_USE_TX_POWER | \
                                                 BT_LE_ADV_OPT_CODED, \
						 BT_GAP_ADV_FAST_INT_MIN_2, \
						 BT_GAP_ADV_FAST_INT_MAX_2, \
						 0)   //Peer address, set to NULL for undirected advertising
	/* Create a non-connectable non-scannable unDIRECTED advertising set */
	err = bt_le_ext_adv_create(BT_LE_EXT_ADV_NCONN_NAME_CODED, &cb, &adv);
	if (err) {
		printk("Failed to create advertising set (err %d)\n", err);
		return;
	}

        #define BT_LE_PER_ADV_P BT_LE_PER_ADV_PARAM(BT_GAP_PER_ADV_FAST_INT_MIN_1, \
						  BT_GAP_PER_ADV_FAST_INT_MIN_1, \
						  BT_LE_PER_ADV_OPT_NONE)
	/* Set periodic advertising parameters */
	err = bt_le_per_adv_set_param(adv, BT_LE_PER_ADV_P);
	if (err) {
		printk("Failed to set periodic advertising parameters"
		       " (err %d)\n", err);
		return;
	}

	/* Enable Periodic Advertising */
	err = bt_le_per_adv_start(adv);
	if (err) {
		printk("Failed to enable periodic advertising (err %d)\n", err);
		return;
	}

	/* Start extended advertising */
	err = bt_le_ext_adv_start(adv, BT_LE_EXT_ADV_START_DEFAULT);
	if (err) {
		printk("Failed to start extended advertising (err %d)\n", err);
		return;
	}

    for(int i=0;i<sizeof(mfg_data);i++){mfg_data[i]=0;}
	while (true) {
		k_sleep(K_SECONDS(1));

		mfg_data[2]++;

		printk("Set Periodic Advertising Data...");
		err = bt_le_per_adv_set_data(adv, ad, ARRAY_SIZE(ad));
		if (err) {
			printk("Failed (err %d)\n", err);
			return;
		}
		printk("done.\n");
	}
}

Best regards,

yuyou