Hi, my friend,
I've been with nrf905. I use a 16-bit CRC check.
But I encountered problems in use:
1.Nrf905 16-bit CRC check format is CRC-16(IBM):X16+X15+X2+1 or other...
I have two custom PCBs, each of which has a microcontroller and an nrf24L01+. Everything related to the transceiver in the designs are complete duplicates (with the exception...
Hello,
I've built a small BLE-device based on the nrf8001.
With my Iphone I can discover this device and I am able to connect to it and listen to notifications of the...
Our pcb is used for gps location data. We have a nrf24L01 nordic chip as the micro process or between the gps module and wireless module (2G). Our engineer needs to capture...
Hey folks,
I'm trying to modify the SPI Master loop back example into a 4 line SPI Master_Slave program. Whenever I change the Tx_Buffer_lenght from 10 to lsome other numbers...
Hi.
I am using S130 softdevice version.
Basically, I am using NUS Service and make a my own NUS central service as NUS_C.
It is correctly work at normal state.
When...
Hi All,
Please Reviwe for a attached circuit file(Chip ANT of nRF51822.pdf).
I also attach a datasheet of chip antenna applied for that circuit(SDBTPTR3015 Data Sheet...
Using and GCC with compilation options without optimization -O0 and with debug -g3 throw error during compiling for an unknown function pwm_calculate_timer_frequency .
...
Hi,
I can't seem to get printf working on the ble_app_cts_c example. I can't seem to find a definitive step-by-step guide as to how to get this working. Any help would...
Hi,
On what occations do the BLE_GAP_TIMEOUT_SRC_ADVERTISING and BLE_GAP_TIMEOUT_SRC_SCAN events fire? The documentation is a tad ... terse .
regards,
Elm
Hy world,
I can update my device with FOTA, but the first time i do:
1 I put: "ble_default_bootloader.hex" on board;
2 i open nrfMasterControlPanel app
3 i write characteristic...
I have a feeling I am missing something completely obvious here. That said, this problem has cost me enough time today that I'm willing to risk embarrassment to see if someone...
I'm trying to implement a simultaneous broadcaster observer by calling ble_gap_adv_start() and sd_ble_gap_scan_start() and waiting for respective events.
If I call advertising...
Hello,
I'm trying to use Eclipse with a Nordic SDK (managed build mode) but it seems Eclipse (latest Mars edition) fails to invoke the assembler. Here is what I found in...
We are looking to use the DCDC to reduce the maximum current during radio operations, but minimize the overall current by enabling it as late as possible before radio use...
I have added button in my project and used bsp_init() to initialize it. All functions in bsp_init() returns NRF_SUCCESS but if I push my button even gpiote_event_handler(...
Hi Folks,
i have implementet a sleep mode by using only the RTC timer with the 32KHz OSC and the WFI instruction. The current consumtion is around 1.7µA (all peripherals...
Hello,
We have some problems with nRFgo Studio on the one of our computers.
Firstly, it takes a long time to flash firmware - about 15-20 seconds:
Secondly, we...
I have interfaced a vibration switch with nRF51822 Pin 19 using external pull-up. When there is no vibration the switch is either at open position or close position randomly...
UPDATED WITH IMPLEMENTATION
Is there a way to know what is triggering a chip boot :
Power off (battery replacement or deffective electrical connection)
The watch...
I have an old project I am trying to recompile for nrf51822 but have been programming with the most recent MDK on my station. The project is asking for old Device Family pack...
