DA1468x

DA14683 Power Supply

Wed, 2019-08-21 15:42 -- Vijay

Hi,

We have built boards based on DA14683 chip. The boards are yet to be programmed.

I see that there is no voltage seen on "VDD1V8P" rail on some boards, on a very few boards it is about 2.6V and on most of the boards, it is 1.8V. Rest of the supplies V33, VDD1V8, V12, V14 are measuring accurate on all boards. We have 2 sensor chips and 1 RTC chip on the VDD1V8P rail.

The board hardly draws any current. Can I know what is happening to this rail? How to fix it?

Regards,

Vijay

 

How to adjust the Bluetooth transmit output power

Wed, 2019-08-21 10:28 -- 魏文彬

Hi

I use DA14682 chip,and i use DA1468x_DSPS_v_1.160.2 SDK

help me please~

The document(DA14682_BA_FS.book) is say : 0 dBm transmit output power  and -94 dBm receiver sensitivity (BLE)

How do I set the Bluetooth transmit power in the program?

I didn't find any function in the SDK to set the transmit output power.

I want to increase the Bluetooth transmit power to use it at a greater distance.

How can we send negative value via BLE?

Tue, 2019-08-20 12:36 -- mahmed106

Hi dialog

I am working on custom board based on DA14681 and sdk is 1.0.14.1081.
In file ble_gatts.c all functions are taking input as uint16_t .
My questions is if i want to send data of negative value like int8 or int16. How can i send that? Because ble_gatts.c is an sdk file which i dont want to change.

Thanks

 

Here is the all file

In custom board VBUS is NC, is there any other way to wakeup form hibernation.

Fri, 2019-08-16 08:40 -- mahmed106

Hi dialog

We designed out custom board and now we are desiging our firmware to prevent battery discharge too much when board not in use.

So we are using dg_configBATTERY_LOW_LEVEL macro to set it in hibernation mode.

But in custom board VBUS is NC, is there any other way to wakeup form hibernation?

 

SmartSnippet [java.lang.NullPointerException] error everytime import a new project

Tue, 2019-08-13 17:38 -- yingfen

Hi everyone,

I am using the latest version of SmartSnippets (v2.0.7). Everytime I try to import a new project, it keeps showing an error [java.lang.NullPointerException], and I cannot build the project using the tool icon above (the icon is grey), but I can still build the project by right-click the project and it works.

And if I restart the software, the problem gets fixed automatically, until I import another project. Closing and reopening a project do not lead to the same problem, only importing does. And everything else works fine. What's possible reason for it?

DA14680 reboot every about 10 second

Mon, 2019-08-12 07:35 -- huiui

Hello,

I have a custom board with DA14680, and I am using SDK 1.0.14.

I have an issue with BLE task: when it is enabled, the board reboot about every 10 seconds; however, if BEL task is disabled, then it won't reboot.

I also tried with #define dg_configUSE_BOD=0, but it didn't help.

I would like to ask why would BLE task trigger reboot? What may be the potential issue? Thank you for the help!

 

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