why use 50ms and 400ms connection interval for testing the maximum data throughput(2M,247byte payload)?
Because 50ms can only send a pdu , and 400ms can send up to 8 pdu...
Hi,
I am using Keil IDE to develop nRF51822 project.
in main(), the command line
APP_SCHED_INIT(APP_SCHED_MAX_EVT_SIZE, APP_SCHED_QUEUE_SIZE);
has Error : L6218E...
Hello,
I'm new to the Nordic SDK and I would like to ask you for help with implementation of PORT events for revision < 3 in "low power" mode instead of "high power" mode...
Hi Nordic,
I've built a ble app with a custom protocol, but am struggling with storing bonds, when running under freeRtos.
What I see:
central app crashes (hardfault...
Hello All,
I am new to this forum, I have been using nRF51822 for a while, and its a great little BLE chip. I am usinga BLE keyboard to send a key to iphone and I captured...
I WANT COMMUNICATION BETWEEN A NRF51422 AND NRF528321 BOARDS, IN WHICH IN NRF51422 BOARD I WILL MEASURE PWM COUNT(IT IS PHERIPHERAL) AND SEND IT TO NRF528321 BOARD WHICH IS...
Hi,
I've been working on a way to detect and prevent replay attacks when beacons are used for sensor data. This is mostly used for home automation sensors, where I have BLE...
Do you have any recommended IAR Embedded Workbench for ARM versions?
It can not be set in 6.5, and can not be operated in 7.5.
nRF52832 PCA10040 V0.9.0
Hi,
I'm writing a program on nrf51 that needs to send a lot of data through notification. How many bytes can be sent at one time? And is the nrf51 capable to read the sensor...
SDK:11.0.0
MCU:nRF52832
Using example:ble_ant_app_hrm
SoftwateDevice Version:s332
PWM is turned on and accurate 4MHz is available before entering ble_stack_init...
Hello everyone,
I can make nrfjprog works up to the version 9.1.x but I received the nRF52840-PDK and can't get nrfjprog to work with version 9.2.x.
Error message is...
Hi All,
Recently i bought myself a nrf52 DK. now i finaly have time to play with it, it does not respond like described.
I tried to go back to the basic:
www.nordicsemi...
I'm using nrf52832 and want to add a custom characteristics.
But if I call the function below, the device stops advertising.
Do you have any idea?
static void add_characteristics...
I have used the BLE UART example to connet mobile phone, the mobile phone just can recivecd 50 data package per second in the most, and each package just have 20 byte, but...
I'm sorry for this easy question.
I'm just starting to develop an application using a nrf52832.
I want to use uart functions, so I added a line #include "app_uart.h"....
Hi,
Does anyone knows if it's possible to change the name or description of the Port (COM) of a nordic device (pca10031 and pca10028)?
The actual name or description...
Hello,
if we want protect our (central) device against tracking and still allow it to connect with specific Peripheral we can use whitelist with IRK (and?) mac address...
eclipse_log.txt
link text
hello there i am trying to make environment for gcc and eclipse with nrf51. i am following above link. i changed my Makefile.winows ...
Dear all，
i configure pin 3 to float input.when the pin3 input 0.3VDD--0.7VDD,the chip current have 25--400ua,other is normal(4ua) Why?
SDK:8.1.0
s110
#define PHOTO_PIN_NUMBER...
Hi,
I am using nrf pwm library from here: github.com/.../nrf51-pwm-library . I am driving two gpios for a piezo buzzer.
I call pwm_init(), then use the call set_frequency_and_duty_cycle...
Hi,
I am trying to run a MIDI slave chip with the nRF51822 which requires me to use the MIDI standard baud rate of 31250. Is it possible to use nrf_drv_uart with a custom...
Hi all,
i use the function sd_power_system_off() to put the micro in system off.
First question is about the the type of system off. There are different type of system OFF...
