My sensor is off-standard,so I have to use gpio to read and write my sensor.
Gpio IIC will take about 0.5ms to get data.
My app need send data every 7.5ms,it seems that...
Hi,
My android Proximity application fails on service discovery only for the very first time it connects with the devices(nrf51822 evaluation kit with sdk 5.2.0). Actually...
Has anyone converted the app note AN34 DTM Python script to C# or C/C++ ?
The Python DTM script is works OK with the setup specified in the app note AN34 figure 2, which...
Hi,
I have a serious problem, when I use uart of NRF51822 QFAAC0 to receive data from another MCU, I found that it will lost one bit at same position everytime. my SDK is...
Hi,
I just started to interface the lcd display with nrf51822 evaluation board. The display i'm using is, spi compatible, 18" tft (160x130) from tiny lcd. I took spi master...
Hi,
We are using the nRF905 device in an application where it needs to switch between auto-retransmitting and sending single packets, due to it communicating with several...
I'm having what I believe is a hardware problem on a custom board with an NRF52832. Unfortunately I cannot share the schematic, but will try to describe the symptoms and will...
Hello,
I also think my question seems wired, but I have a situation to make same production of 2 type about BT exist.
I will use 3rd party BT module when BT type product...
Hi all,
I have a problem where I get a Flash page erase failure when scanning interval/window is 3.125 ms (or other very small value).
(SD132 2.0.0, SDK 11.0.0)
When...
Hello,
I am currently working on a custom nRF52840 board. I have to make the nRF52 communicate with a chip using TWI, so I started from SDK 15.2.0 TWI Scanner example...
Hi!
I try to compile secure DFU from examples SDK15.3 for nrf52810 (pca10040e_ble). I added old files from DFU SDK15.0 in to my new project. Also added file micro_ecc_lib_nrf52...
Hello ,
I saw some examples in nordic forum in that they measured coin cell battery voltage level
how to interface 22v battery to nrf52832?
Thanks
learn
hello everyone,
In my application single central(ble_app_uart_c) scanning and check each peripheral(ble_app_uart) Mac id. which peripheral mac id is defined by central,...
Hi all,
Can anyone suggest me how can I flash raytech dongle nrf52840 ? I tried two following solution
1) I tried using SWI interface with dk board ,getting an error message...
Hello,
I'm having difficulty with an app which combines USB (CDC ACM) and 802.15.4 using Softdevice (15.3). The issue appears to be related to hfclk, which is started to...
I am using the Nordic SDK 15.3 for nrf52832 development board. I am using SES as my development environment but I am unable to get RTT logging to work.
I have enabled RTT...
I am using SPIM3 to drive a peripheral, only using tx. And I noticed that SPI is sending wrong/corrupt bytes once in a while. See below image where the code tries to send...
I am developing a multi-peripheral product that knows all the possible connectable central Bluetooth device addresses (centrals are all NFC enabled smartphones).
When a...
I am using QSPI of nRF52480 with freqency 2M Hz. Now I want to reduce to 1M Hz,
but QSPI_CONFIG_FREQUENCY min value is 15
// <o> QSPI_CONFIG_FREQUENCY - Frequency divider...
Hi,
We are working to build our own SPI module code on nRF52832 in Segger IDE without Using SDK. But we are stuck at this point of error in core_cm4.h.
Unknown Type name...
i am trying to use flash to store and read data. I am able to do that when there is only softdevice and application. but when there is bootloader code get stuck. softdevice...
