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
Hi
Can you upload the serial log in its entirety so we can see where this information comes from. If it's from a connection parameter update, it might be that one of the devices in the connection does not support Coded PHY for example. Just to make sure, what device are you testing this project on, and what device are you using to scan (and possibly connect to)?
To see how the application should be configured to use the Coded PHY, you can check out the Bluetooth: Peripheral Heart Rate Monitor with Coded PHY sample in the nRFConnect SDK. I was not able to spot anything obvious missing, but you might have missed some configuration so it's worth taking a look at our sample I think.
Best regards,
Simon
Hello,Simonr
thanks for your reply,
i using two 52840DK, serial log as follow:
[DEVICE]: 2D:F2:98:1B:DB:1E (random), AD evt type 5, Tx Pwr: 0, RSSI -20 PerAdv C:0 S:0 D:0 SR:0 E:1 Prim: LE 1M, Secn: LE Coded, Interval: 0x03c0 (1200 ms), SID: 0 Found periodic advertising. Creating Periodic Advertising Sync...success. Waiting for periodic sync... PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random) synced, Interval 0x03c0 (1200 ms), PHY LE Coded PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff000001000000000000 Periodic sync established. Stop blinking LED. Waiting for periodic sync lost... PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff000002000000000000 PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff000003000000000000 PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff000004000000000000 PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff000005000000000000 PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff000007000000000000 PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff000008000000000000 PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff000009000000000000 PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff00000a000000000000 PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff00000b000000000000 PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff00000d000000000000 PER_ADV_SYNC[0]: [DEVICE]: 2D:F2:98:1B:DB:1E (random), tx_power 127, RSSI -127, CTE 0, data length 11, data: 0aff00000e000000000000
Best regards,
yuyou
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