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...
Hi
i created one timer0 interrupt in ble_app_hrs.
void timer0_init()
{
NRF_TIMER0->TASKS_STOP=0;
NRF_TIMER0->PRESCALER=4;
NRF_TIMER0->BITMODE=3;
NRF_TIMER0->MODE...
I am new to ARM and nRF51822. I am using a development kit with the PCA10000 dongle and the PCA10005 daughter card. I wrote a simple C program (attached) to blink the LEDs...
Well, I'm a little in doubt on whether this is the right place to file a bug in the reference manual. Anyhow, I think it's easier and maybe it will prevent that another guy...
Hello,
I updated the "ble_app_proximity" PCA10001 example for adapting the time constants of my needs.
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(3700, UNIT_1_25_MS)...
hi,
In my device(nr51), have multi service and one client.
when i initial the client first ,then to setup service. this follow is O.K.
But, if i initial the service, and...
Keyboard source: Desktop 2 v1.0.5
Dongle source: 1. Desktop 2 v1.0.5 dongle hex; 2. Desktop 1.2.2.293 dongle hex
I found it is very defficult to pair the keyboard with...
Hi,
1. I have some puzzles,please give me some explanations,thank you!
In my design,I use some 51822 devices as tags which can communicate with the host.
The tags can send...
Hi, I want to know what's the differences between the NRF_CLOCK_LFCLKSRC_RC_250_PPM_xxMS_CALIBRATION and NRF_CLOCK_LFCLKSRC_XTAL_xx_PPM where xx means a decimal number.
when...
We've been working on a product that utilizes a NRF51822 chip as well as WS2812B NeoPixels. Since there have been numerous posts about it here we've decided to release our...
Hi,
I want the NRF51 to respond to a received packet from a particular device using register TIFS to control the interfame timing.
For TIFS to work I have to set the...
Dear Nordic,
is it possible to build a simple data bridge at speed of 115200 and up based on nRF51822 with CTS/RTS support and a fixed pin code for nRF51822 pairing?
I am working on a multi-node network application with multiple transmitters and receivers and I have a question about timing for chips like the nRF24L01+. I would like to...
Hi
In my case i have gpio interrupt for every 25ms. so i change button detection delay t0 10ms.
and i given timeout in all while loops of twi_hw_master.c.
but my...
Hi,
we have nrf51822 custom hardware.
we are flashing application through j-link.
but after every flashing , i need to do switch off and on the device.
then only...
