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...
NRF52, SDK 12.1
We are using I2C to communicate with a secure element. We got the basic system working and can send and receive APDUs. The problem we have is when receiving...
Hi,
is it possible to flash the nrf52 with a TTL-232R-3V3 cable. My initial idea was to connect the cable uart Rx,Tx pins and program it using nrfjprog .
However, the...
Hello,
i'm new in bluetooth programming. but i wish to make a bluetooth controled frequency generator. Frequencies must be in range 1 too 1000 Hz, with variable Pulse Width...
Hi,
We found out on this topic that there was a flaw memory protection of nrf51xxx chip
devzone.nordicsemi.com/.../
We search on the net and found out quickly how...
I have an old application which I want to add the bootloader and secure DFU.
I have to migrate to SDK version 12 and I have some persistent data which the old program is...
Hello, I have nRF51822 Beacon Kit (pca200006). I'd like to upload .hex file in DFU over ipad, I picked beacon example from sdk 11. When I point on the hex file from ipad toolbox...
Hello,
I am running the NFC example applicaiotn(URI Message Example) in SDK5 v11.0.0. I am using a PCA10040(V1.1.1) dev board with the NFC antenna connected to it and testing...
We would like to use the nRF52 for an indoor application that should cover a a single family home.
The requirements for throughput are very relaxed, so we'd like to trade...
Hi Nordic,
I am trying to figure out the relation between a certain page number (say, 0xFE) and the group of addresses that it contains. How can I get this relation?
...
hi,
I am working with nr52832 and SDK 12.1.
I have referred the RNG example based on which I have integrated that code section in my custom application:
rng_generate...
I'm trying to accomplish a communication from the nrf24LE1 to the nrf24L01+. The nrf24L01+ is hooked up to an Arduino UNO. The nrf24LE1 is flashed with the "enhanced_shockburst_ptx_nrf24le1...
6.1.4 Erasing a page in code region 1
When erase is enabled, the NVM can be erased page by page using the ERASEPAGE register or the ERASEPCR1
register. After erasing a NVM...
Hello,
I was testing BLE Heart Rate Collector Example with two nRF52832 devices, one was programmed with ble_app_hrs_c as a BLE central role, and the other was programmed...
Hello everyone,
I have very pesky bug that is leaving me in fits. I have a feeling it is a timing issue, but I am not sure at this point. Here is my issue, and I would...
