DA14580电源电压较高的通信问题 - 跟进

Hi mratajski,

谢谢你的问题在线。是否有可能提供以下数据，以更好地了解您的问题？

1. A current capture when the connection fails.I suspect that some of the devices miss connection events, so the connection cannot be maintained. What is the connection interval that you are using? If connection events are missing, then the connection interval should be gradually getting larger.
2. A BLE Sniffer log when the connection fails.
3. 故障设备正在进行时电流捕获。是you able to count the advertising events? Are you missing any of the advertising events?

Thanks, PM_Dialog

嗨omesa，thanks for your answer.

Hi mratajski, I’ll check your inputs and let you know as soon as possible.

Thanks, PM_Dialog

Hi mratajski,

Again thanks for your inputs. Please correct my if anything is wrong/missing and kindly provide some further inputs on this. Then, I will escalate all your inputs internally for further analysis.

发表描述：

• Pan14580模块用于定制板
• DA14580通过硬币电池电量供电
• The issue is appeared only in some modules, not at all devices. Can you indicate that the issue exists only on some of them? Are there any device which running at 3.3V supply voltage?

When the supply voltage is at 3.3V:

• 一些电路板，开始广告一段时间，然后不断重置。你怎么知道芯片进入无休止的重置循环？
• BLE is active for few second, so are you able to connect?

Thanks, PM_Dialog

Hi mratajski,

Let me escalate your inputs internally. I’ll get back to you as soon as I have feedback from the Team.

Thanks, PM_Dialog

Hi Michal
“主机应用程序不会从DA14580上运行的应用程序接收CTS，并且在超时后重置蓝牙模块 - DA14580进入UART启动过程，加载固件并开始正常操作几秒钟，CTS再次缺少......”

发生了什么，当您的主机重置不是Pan1740时？它仍然活着和广告？
What kind of host you have ?
Maybe for testing the modul, you can put for example a tag firmware on it.
Another idea, maybe the CTS Signal is too short or the serial communication is failed.
What is your baudrate ? Is it protected my a checksum ?
对不起，这只是猜测，因为我们没有在我们面前的硬件。
cheers
Siegmar.

Hi mratajski,

我已经在内部升级了你的问题。我会及时通知你的。

Thanks, PM_Dialog

Hi mratajski,

Can you please change the BANDGAP_REG [LDO_RET_TRIM] bitfield to a lower value? The default value for DA14580 and SDK5.0.4 is 0x0A, so change it to 0x09. You can also refer to DA14580datasheet and Table 26: BANDGAP_REG (0x50000028) for more information. You will have to add the following line in the system_init() function before the periph_init() call.

void system_init(void) { ... // Check and read BD address nvds_read_bdaddr(); SetBits16(BANDGAP_REG, LDO_RET_TRIM, 0x9); //Peripherals initilization periph_init(); ... }

Thanks, PM_Dialog

Hi mratajski,

是you using the same firmware with same advertising intervals? Did you test it with any of our SDK examples, such as ble_app_barebone? You mentioned that the battery voltage is 3.0V instead of 3.3V (which was the problem). Can you please clarify it?

Battery voltage = 3.0 Volt

- When BANDGAP_REG[LDO_RET_TRIM] = 0x0A, current consumption is 1.2mA

- 当BandGAP_REG [LDO_RET_TRIM] = 0x9时，电流消耗为2.4mA

Thanks, PM_Dialog

Hi mratajski,

您能否请拒绝da1458x_stack_config.h标题文件中的cfg_power_optimizations宏？之后，您是否能够看到电源消耗的任何差异？

Thanks, PM_Dialog

Hi mratajski,

我为迟到的回应道歉。实际上它是一个自定义PCB，有几个参数涉及并观察系统性能中的这种行为。例如，以下参数可能会影响系统：

• XTAL cut
• PCB层
• PCB layout
• Internal temperature
• 定位的晶体
• 对整体系统性能的影响

该分辨率是将LDO_RET_TRIM位字段更改为较低的值（如前所述），并将系统功能保持在已知的操作限制中。

Thanks, PM_Dialog