To be able to upgrade FW through UART, a bootloader for nrf51822 is required in my project. I have tried out the example bootloader in SDK. But this example is using softdevice...
I followed the forum posts and nan-29 to get eclipse 4.3.2 to successfully connect to JLinkGDBServer via a Segger J-Link EDU on Ubuntu Linux.
I can start the GDB server...
I'm using Softedevice 6.0.0 and SDK 5.2. and Keil 4.7.
I Modified bootloader project so it compiles with both ble and hci transports. Currently I use button_0 and button_1...
I am working on the proj that needed 2 MCU and nrf51822 work as slave.
I would like to know any ref on how to firmware upgrade on board without external tool?
We're looking for a Nordic nRF51822 based low profile/small USB dongle that we can use for our iBeacon software.
It would need to come complete with casing and the ability...
Hi all,
i want to establish connection between two threads in cmsis-rtos, can i use
1) semaphore to do this?
2)message queue should be used or any other ipcs can be...
Hi,
I have two CPU in our product. (STM32F2 and Nordic nrf51422).
I use serialization function to link those two CPU(refer to ble_s110_serialization sample)
But I find...
Hello,
I didn't find much information about how different settings for the MTU size behaves with older versions of BLE devices. I'm using the softdevice s132 4.0.2.
...
When trying out the ble_app_hrs_freertos example in nRF5 SDK 11.0.0-2.alpha_bc3f6a0 , I seem to only get 14-character long device name announcements.
This happens when...
To @Hung Bui. Hello sir. I am new to NRF51 microcontrolers and I am trying to use Pstorage in my written code. I have noticed this post of your's:
I am using nrf51422...
Why do I call this bluetooth send function (ble_nus_string_send )return values is 04 not 00(return sd_ble_gatts_hvx), why will appear this kind of circumstance?When I send...
I am using nRF Connect with nRF52 and need to use UART over BLE to send command to the device but I find that you can only use hexadecimal input and get hexadecimal output...
I have nRF52 and working with SDK11.
I can start BLE advertising and nRF Connect app will detect everything correctly.
I only have an issue: I want to advertise for...
Hi there,
I am getting some error in my SAADC measurements and I believe it's due to the R_INPUT forming a parallel resistance with my voltage divider at the input (the...
Hi,
I am measuring the current during sleep, after the sequence, __WFE();__SEV();__WFE();.
With NRF_LOG_ENABLED set to 1, the current is about 486 uA. With NRF_LOG_ENABLED...
Using: nrf51822, SDK 10.
My application needs to use TWI0 and SPIS1 at the same time. However if I enable TWI0 and then SPIS1, when I run nrf_drv_spis_init() I get NRF_ERROR_INVALID_STATE...
I am working with the SDK 13 ble_app_att_mtu_throughput example. With the SDK 12 example, it seems to require the SoftDevice to be loaded with the arm5_no_packs example. The...
Hello,
I'm designing a project with the nRF52832 where I will use an external SPI ADC.
For debug and backward compatibility purposes, I also plan to use the SAADC.
The...
in the ble multilink central example i'm not understanding where the functions in client_handling.c are exercised some don't seem to be used in main or client_handling (client_handling_dm_event_handler...
I am reporting a problem that might bite you. A Waveshare NRF51822 module comes with a "Passed" sticker on the back (solder side) that makes the module stand off the mother...
