DA14580

DA7212 i2s frequency changing dynamically

Sun, 2020-09-27 05:20--keyou
Forums:
PMIC, Audio and Haptics Questions

Hi,

We are currently evaluating DA7212 for an application where we need to change between sample rate frequency occasionally where the DA7212 will be the I2S master. Specifically, we are interested in a frequency change of 48kHz to 16kHz and 16kHz to 48kHz.

1. Will we need to reset the chip in order to change sample rate frequency or can it be changed while operating?

If it can be changed while operating,

2. Which registers needs to be changed?

3. What will be the delay before the I2S frequency changes?

官方ble_app_sleepmode无法一直广播蓝牙广播

Sun, 2020-09-27 03:45--JackLinZero
Forums:
Dialog Smartbond Bluetooth Low Energy – Hardware (device & reference designs) // Dialog “Smartbond”系列低功耗蓝牙—硬件(蓝牙芯片及参考设计)

Dear All:

你好，我发表了把官方案sdk的ble_app_sleepmode的休眠模式为延长睡眠之后，程静在一起是可以正当，我在一起时空后，我发表象子不正常广播，请问这个可以？

latchup resilience of IO pin

星期三，2020-09-23 13:22--koen@weijand.nl.
Forums:
GreenPak和Greenfet问题

I'm missing data in the datasheet about the latchup resilience of the low voltage IO pins, and in particular the pins with an output fet structure directly connected to it.

I am in a situation where I cannot guarantee that all IO pins have a lower or equal voltage than the VDD pin. during powerup one pin may go higher and possible trigger latchup.

Usually latchup sensitivity is defined by the maximum current through the Pfet body diode or guardring, when a pin is pulled above the vdd.

what value has that current ?

stepper motor circuit anomalies

星期三，2020-09-16 11:17--koen@weijand.nl.
Forums:
GreenPak和Greenfet问题

I edited the AN-CM-295 circuit and removed the current comparator circuit.

I set it to full step mode, but the circuit failed to operate. I edited another vesion, placed the comparators back edited the verison to full step only, removed the comparators, and miraculously that one could operate withput the CCMP .

I disabled the chopper by connecting the CHOP input to gnd or leave unconnected.

apparently there are some forces at work that I have not yet identified.

Learn how to implement various 8-bit shift registers within the GreenPAK IC

Wed, 2020-09-16 05:27--Olga Levenets
Forums:
Announcements

Check out a new app note below to learn how to implement various 8-bit shift registers within the GreenPAK IC. Serial in serial out, Serial in parallel out, Parallel in serial out, and Parallel in parallel out shift registers have been designed in the examples:

//www.wsdof.com/an-cm-303

sleepmode example

Thu, 2020-09-10 21:00--thanhtu131.
Forums:
Dialog Smartbond Bluetooth Low Energy – Software

Hi, I am using a DA14580 Basic kit. Please don't mention about DA14531. I'll learn about it later !!

I really want to undestand 3 things in the sleep mode example for DA14580:

1 /在第一次10秒,如果我不修改code, does the system go to sleep? Or the main loop just tries to sleep based on the sleep mode which is set before by the function arch_set_deep_sleep() (or arch_set_extended_sleep()) ?

The small module for mobile application

Mon, 2020-09-07 21:32--thanhtu131.
Forums:
Dialog Smartbond Bluetooth Low Energy – Hardware (device & reference designs)

嗨，我正在制作一个可以通过ble连接到我的手机的小盒子，我有一个da14580基本套件，但套件（用调试器上的调试器）对我的盒子非常大。我在哪里可以购买一个较小的模块（没有上面的调试器），以便将其焊接到我的PCB上？较小的DA14580模块必须在IT上有ANTENA，因为我无法创建antena。样本位于附件中。

Another question, can i flash the program code into the SRAM or OTP using Serial Wire Debug (SWD)?

Looking forward to your replies. Thanks!!

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