DA14580

关于时钟抖动

Tue, 2016-04-26 07:12--z20121202038

一般如何处理时钟抖动呢?
我在arch_main.c文件中看到了时钟校准的代码,意思是不是如果没有定义外部时钟就用默认时钟。那如果我外挂16M的时钟,那软件上要做怎样的处理呢?

#if defined(CFG_USE_DEFAULT_XTAL16M_TRIM_VALUE_IF_NOT_CALIBRATED)
#define DEFAULT_XTAL16M_TRIM_VALUE (1302)
// Apply the default XTAL16 trim value if a trim value has not been programmed in OTP
if ( 0 == GetWord16(CLK_FREQ_TRIM_REG) )
{
set_xtal16m_trim_value(DEFAULT_XTAL16M_TRIM_VALUE);
}
#endif

Setting Power Level of transmitter

Mon, 2016-04-25 15:57--roland

I want the DA14850 to work at a lower power output. From what I have read it is only possible to set the near field mode being -20dBm or normal being 0dBm.

The SDK provides three calls: one to see the state, set the state and reset the state of the near field mode.

What would be the best position in the code (e.g. DSPS SDK5)? For now I have set the NFM mode in `arch_main.c`:

Tuning Advertising, Connection, and Sleep Parameters for Optimizing Power Consumption

Fri, 2016-04-22 20:00--joe.brackman

I'm developing an application that started as the DSPS application (v3.150.2). We have extended and tweaked it in several ways.

At this point, we're looking to optimize power consumption for our product, but I'm unsure on how to proceed. NOTE: Power consumption is an issue for our Peripheral primarily. We do have a Central project also running on the DA14580, but it does not run on a battery, so it can be a power hog.

In arch.h, there is MAX_SLEEP_DURATION_PERIODIC_WAKEUP, which controls the sleep time. In app.h, there are APP_ADV_INT_MIN and APP_ADV_INT_MAX.

Buck/Boost DC-DC Converter

Fri, 2016-04-22 08:27--Karthikeyan S

Hi,
我被达tasheet and there is hardware connection is required to configure Buck mode or Boost mode so Can't we use 3V lithium battery voltage 1.5V. I would like to know Is there any possibilities to use 3V Lithium battery till 1.5 V as DA14580 is having Buck and Boost converter inside. Please suggest your solution for the same.

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