以编程方式更改广告率

Dear Motred,

You're right when saying that both lines 209 & 210 in app.c must be changed in case you need to change the advertising interval.
所以你menti的函数oned is fine.
请注意，current_app_adv_int_min＆current_app_adv_int_max必须是相同的。

best regards,

Guillaume.

#define app_adv_int_min.1100
#define APP_ADV_INT_MAX 1100
1100意思是？单元？？

嗨je_dialog

yu确定吗？因为它是广告间隔所以1100 *（1/100）= 11秒!!当或者是1100 * 0.625 = 687.S毫秒？因为在从电力分析中检查两个广告活动的时间约为680毫秒!!

Hello hrg, yes, you are right : i was looking at our Beacon SW by mistake where we have a different calculation.

Main.c中的线81和83应用了0.625的多过，所以680ms是正确的值。

#define app_adv_int_min.0x20 // *0.625ms (+ pseudo random advDelay from 0 to 10ms)

BR JE_Dialog

Hi,

Just adding to this. You will have to stop, then restart advertising to actually change the intervals.

Hi JE,

In #8, you mentioned the (BLE) stack will add random number(0~10ms) above APP_ADV_INT_MAX, while in our tests, we did not see this random adding to the interval:
- when we power up 3 DA modules(with same firmware) simutaneously, we could hardly scan all 3 modules(sometimes we can only scan 1, sometimes 2).
- while if we power up 3 DA modules one by one, we can scan all 3 modules everytime.
- 如果我们为每个模块带来不同的app_adv_int_max值的固件，并同时向3个模块加电，我们也可以每次扫描所有3个模块。

请帮助检查和建议..

Thanks.
Alex

嗨，亚历克斯，

根据蓝牙规范，广告事件以规则的间隔发生，这些间隔略微修改，随机延迟以帮助干扰避免。即使没有这种机制，随着时间的推移，不同的广告间隔应该漂移并停止彼此重叠（无论您的广告如何开始，您的扫描仪无法发现其他设备的时间）。你使用不同的BD地址吗？你的软件版本是什么？

Thanks MT_dialog

谢谢mt ..

你使用不同的BD地址吗？
- Yes, we are having different BDA for each module.
你的软件版本是什么？
- The firmware developed based on SDK304.

Alex.

嗨，亚历克斯，

Can you please try to define the CFG_TRNG configuration, and check again if the advertising events overlaps ?

Thanks MT_dialog.

Hi Dialog
We have the same issue as #11, and we are using SDK 5.0.2.1

Info:
我们使用“app_easy_gap_nonnectable_advertise_start_create_msg”，它相同地设置cmd-> intv_max和cmd-> intv_min
cmd->intv_max = user_non_connectable_advertise_conf.intv;
cmd-> intv_min = user_non_connectable_advertise_conf.intv;

真正的随机数生成器在“da1458x_config_advance.h”中启用了
#define CFG_TRNG

Hope you have a solution, since this is a real issue for the application.

最好的祝福，
Ciano Frost
丹麦

嗨Ciano，

请确保在580中下载的图像具有所定义的CFG_TRNG，我将您的场景与SDK 5.0.2.1在未连接模式（不同的广告字符串，不同的BD_Addresses和相同的广告间隔不同）中使用SDK 5.0.2.1测试了您的场景并且通过连接两个重置引脚，我同时在两个板上发出复位。我可以用嗅探器和普通的Android BLE应用程序妥善看到电路板。我可以获得一个设备和损坏的广告数据的唯一方法是CFG_TRNG未定义。当TRNG定义时，请检查嗅探器附件。

Thanks MT_dialog

嗨Ciano，

因此，您每1秒广告1广告数据包，这是由发布广告启动的经过时间的定时器定义。这解释了你是经验的，第一个广告消息没有应用于它的延迟。在APP_ADV_START发出之后，广告字符串在与随机延迟重新安排下一个广告事件之后与其他DUT同时传输，所以在您发送的第一个消息中，两个广告消息之间存在碰撞。周围的工作是为了减少广告间隔，使得第二广告串在1秒间隔内传输，随机延迟以插入广告间隔，使得两个广告字符串不会碰撞。

You can count the advertising string that you have emmited and stop the advertising in the second emmited advertising string (which will be received correctly), you can catch the completetion of the advertising and and start the timer, when tha timer elapses start advertising again.

这是一个小片段，你如何计算广告活动：

enum arch_main_loop_callback_ret count_adv_events(void)
{
uint8_t temp_last_ble_event;
temp_last_ble_event = arch_last_rwble_evt_get();
if（app_last_ble_event！= temp_last_ble_event）
{
app_last_ble_event = temp_last_ble_event;
if (app_last_ble_event == BLE_EVT_END)
adv_count ++;
if（adv_count == 2）
{
adv_count=0;
app_easy_gap_advertise_stop();
}
}
return GOTO_SLEEP;
}

Thanks MT_dialog

嗨Ciano，

The delay that is inserted in the advertising operation is located in the ROM code according to the BLE spec, you cant change that.

Thanks MT_dialog