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I am struggling to figure out why I can't write on the Peripherals memory to set a function. In this case I am trying to write in the 0x4000250C which is UART0, PSELTXD (Pin select for TXD), but it ... (more)
Hi, I am trying to code my nRF51822 on my custom board, however right now I'm having my doubt on using some of the example code provided in the SDK.
Essentially, I want to try sending a byte via ... (more)
Do I have to use external host MCU for nRF51422? What can the ARM Cortex processor inside SoC 51422 do and cannot do?
I want to create a mesh network with hundreds of ANT nodes, each node can scan all ... (more)
I have done this in the past with no problems using Chrome or Firefox.
But for last couple of posts, I have not been able to add attachments. It allows me to select my files, but when I submit, no ... (more)
I'm porting a nrf51822 evaluation board 10001 tested application to a custom board. Part of the application is using UART interrupts to raise a flag and start data transfer through BLE. When i run the application on the ... (more)
My application gathers sensor data and uses the advertisement packet to broadcast the values (much the same as the nordic temp sensor example). Rather than having to have a separate timer which aligns with the advertise interval (which ... (more)
As per this thread: https://devzone.nordicsemi.com/index.... the SD stack takes care of HFCLK, however as fas as I understand HFCLK is also responsible for timers - now, when SD stack is in use/enabled and it takes care ... (more)
I am looking at section 9.1 of the S110 Softdevice Specification v1.3A and the release notes for 7.0.0-2.alpha where I see that an application now starts at 0x15000 which is to make room for ... (more)
S110 v7.0.0-2.alpha got released today.
In the release notes it says...
[b]The SoftDevice can now be configured to forward interrupts to one of several applications (FORT-815). This is done by adding a parameter to the ... (more)
I have a custom board running a 51822 rev C0 chip connected to a TMP102 temp sensor over I2C. I was using the twi_sw_master.c to successfully talk to it in my main loop before I start the ... (more)
I program the nRF2727 module with the "Block readback of mainmemory" seleted using nRFgo studio tool. After that, I can still read out the content of flash. What's the root cause?
How to set READ property to a characteristic pipe through nRFGO studio.Actually i am not able to set READ property to any pipe.How can i do this?
Because i want iPhone to read value from this characteristic pipe ... (more)
I am new to nrf51822. I need a much less powerful CPU than the 16MHz CPU, is there a way to slow down the CPU to save power?
I have compiled the ble_app_uart sdk the nRF51 SDK_v220.127.116.11364. (see attached file) and I upload this app to my device using OTA .
I found it can work with my Android device but not the iOS device. I ... (more)
Does your new implemenation of BLE 4.1 support bulk/block data transfer? What data rate could be possible ? /Best Regards Kjell Bystedt
Im using custom board with nRF8001. I'm using Hello World example from GitHub. The nrf chip revision is C not D. When I connect the board to Arduino Leonardo the device start advertising. But I want to use external ... (more)
I want to load a Blinky project to the AK board, and the dongle is used as a jlink, but I forget to move the jumper to the 'out', and the program is loaded to the dongle. Now the master ... (more)
I have two custom boards with nrf51822 QFAAG0 1348AC chip. I use 16 MHz crystal. Bluetooth functionality is working fine but SPI does not work. SPI pins are P0.00 ( MISO ), P0.01 ( MOSI ), P0.02 ( SCK ), P0.03 ( SS1 ... (more)
I am searching for an exampleproject to learn how to connect to motherboards (or an evaluation board) over bluetooth:
I try to send data from on chip (nrf51822) to another on and want to send that data via UART ... (more)
I ran the example " ble_app_hrs ". the consumption is 1.5mA, when I hold SWCLK and nRESET low,the consumption is fall to 0.9mA. how I could reduce the consumpion??
I change the example ant_broadcast to acknowledge mode, but it seems that without a peripheral side,the LED0 will still twinkle.I don't know how to change the project so that only with a receiver will the sender ... (more)
when I use nRF51822 ESB Protocol,I set retransmit delay = 600us,anything else is working
good,communication is very well,but the minimal Tx period is 1.2ms,not 600us,why?
If the minimal Tx period is 1.2ms,the ... (more)
Is there a way to recieve more than one write callback for a given characteristic, per radio session? It seems like I can rx 1 time per attribute per radio session and tx up to 8 times per attribute per ... (more)
Is there anyway to limit the number of channels a device is advertising on?
I'm using an nrf51822 with the S110 stack and want to limit my device to a single advertising channel (just 37, instead of 37, 38 ... (more)
Is there any compatibility table for nRF51 series chips with revisions, softdevice versions and SDK versions?
I have some custom boards with a module that contains a nRF51422 CEAA A0 (0x0031) and although I can reprogram the softdevice downloading the ... (more)
HI ALL i have successfully creat my own service referring to the example ble_app_lbs and reference nAN-36. but when i tried to creat my own characteristic in my service, it did not wrok(the device became unable to advertise, and ... (more)
I posted this on the Keil website, but got no answers! I would like to use one of my ULINK 2 pods to develop my application. However the Keil interface defines a reset connection. As we all know, the nRF51822 ... (more)
I want to change the GAP params such as connInterval, slaveLatency, and have some questions:
1.can I call sd_ble_gap_conn_param_update directly or need to send LL_CONNECTION_PARAM_REQ first and wait for the BLE_GAP_EVT_CONN_PARAM_UPDATE event? a. If need to send LL_CONNECTION_PARAM_REQ ... (more)