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Firmware(.hex file) which modifies internal capacitance for crystal

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Dialog Smartbond Bluetooth Low Energy – Software

Dear Dialog,

I am trying to evaluate crystals and checking its performance with DA1469x.
Where can be found the firmware (or .hex file) in SDK 10.0.6?
Or if I need to compile the code to create .hex file, which project file should be compiled to oscillate the crystal?

In SDK for DA14585, I was able to find the firmware called "prod_test585.hex" which can be applied to oscillate various crystals and change the internal capacitance.
I would like to do the same oscillation test with DA1469x.

谢谢。

Unable to transact using I2C with MPU6050

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Dialog Smartbond Bluetooth Low Energy – Software

Hi All,

I am trying to read the value of the WHOAMI register of MPU 6050 using I2C interface. I was unable to find a function directly for register R/W. so, using the adapter, i have used this code.

EEPROM_DATA_READER（EEPROM_24FC256，0x75，PAGE_BUFF）;

Page_buff is empty and will receive the values after reading.

Tyatic Uint16_t EEPROM_DATA_READER（i2c_device dev，uint8_t pageaddr，uint8_t * buff）
{
uint8_t e_addr_buff[1];

DA14695 ADC Scan List

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Dialog Smartbond Bluetooth Low Energy – Software

Hi,

一般SW支持DA1469x

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Dialog Smartbond Bluetooth Low Energy – Software

Hi,

We are in the process of selecting the BT MCU, evaluating several options. We already ordered two DevKits for the DA1469x, to become familiar with the product. We still have some questions, could you please help to clarify them?

1）主机上所需的最小BT版本是什么？如果连接到较低的BT版本，MCU将“缩小”其功能，例如4.1？

2) Is the SDK compatible with C++? If not how is your experience with combining C++ to your SDK?

MCU selection for medical device, some HW questions

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Dialog Smartbond Bluetooth Low Energy – Hardware (device & reference designs)

Hi,

We are developing a bladder sensor for helping people with incontinence. It is a medical device, wireless and wearable, based on ultrasound

We are in the process of selecting the BT MCU, evaluating several options. We already ordered two DevKits for the DA1469x, to become familiar with the product. We still have some questions, could you please help to clarify them?

1) Is it possible to use a SMD antenna, instead of a PCB antenna? If yes, what is the open-air range? Do you have any suggestion?

Battery Management System for the entire circuit

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Dialog Smartbond Bluetooth Low Energy – Hardware (device & reference designs)

Hi,

I was looking at DA14695 for my wearable application and came across the integrated power management system.

I want to know if this can be used as a battery management system for the entire circuit, meaning, can I use the power rails to power my other sensors (running at 1.8V).

Secondly, I want to run the entire circuit at 1.8V. How do I shift the running voltage from 3.3 to 1.8 V, while running on the battery?

使用4个ADC频道的采样速度

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Dialog Smartbond Bluetooth Low Energy – Software

Hi,

I recently bought a DA14695/9 because of the fast ADC, ive followed adc adapter example wich samples one adc.

I need four adc's that are able to sample with 500Ksample/s and store their values (if using dma helps reaching the goals then this will be an option).

Is this possible?

if not, what would be the sample rate when using 4 channels?
如果是这样，你可以指导我完成这个吗？ADC适配器似乎不能这样做。

Thanks in advance

NVMS on DA1469x

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Dialog Smartbond Bluetooth Low Energy – Software

Hello,

I need a lot of persistent data in my application. GATT services shall be configured with persistent information by a central bluetooth BLE node on regular, but occasional case. The NVMS data must survive brownout / powerdown conditions. The QSPI flash interface for firmware of the DA14695 is described to NOT allow memory writes (in the datasheet).
NVMS一dapter is included in the SDK and I am confused now.

Maximum Flash Size supported by Adapter

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Dialog Smartbond Bluetooth Low Energy – Software

Hi there,

For our application, we want to log a large amount of Data to the flash memory (Up to 256 MByte if possible). Is there any limitation as to what size of Flash is supported by the QSPI Flash adapter?

Under which circumstances do I have to reconfigure the Flash region size? Which partitions need to align with the region size?

我是否正确地假设我可以只为一个具有32位地址的重要较大的闪存创建自己的分区文件和一个重要的NVMS_LOG_PART？

谢谢你的帮助！

无法输出XTAL32K

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Dialog Smartbond Bluetooth Low Energy – Software

Hi there,

I am trying to output XTAL32K on P0_14 to be able to connect it to external sensors. However, until now I was not successful in trying to do so. I have always set P0_14 to output mode and tried the following:

1.我已将p0_14函数设置为hw_gpio_func_clock函数并设置gpio_clk_sel_reg [func_clock_en]
2. Alternatively, I have set GPIO_CLK_SEL_REG[FUNC_CLOCK_EN] while setting P0_14 function to HW_GPIO_FUNC_GPIO. At the same time I have set USBPAD_REG[USBPAD_EN] as instructed on p.294 of the datasheet (40.2.5 Special I/O Considerations)

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