My sensor is off-standard,so I have to use gpio to read and write my sensor.
Gpio IIC will take about 0.5ms to get data.
My app need send data every 7.5ms,it seems that...
Hi,
My android Proximity application fails on service discovery only for the very first time it connects with the devices(nrf51822 evaluation kit with sdk 5.2.0). Actually...
Has anyone converted the app note AN34 DTM Python script to C# or C/C++ ?
The Python DTM script is works OK with the setup specified in the app note AN34 figure 2, which...
Hi,
I have a serious problem, when I use uart of NRF51822 QFAAC0 to receive data from another MCU, I found that it will lost one bit at same position everytime. my SDK is...
Hi,
I just started to interface the lcd display with nrf51822 evaluation board. The display i'm using is, spi compatible, 18" tft (160x130) from tiny lcd. I took spi master...
Hi,
We are using the nRF905 device in an application where it needs to switch between auto-retransmitting and sending single packets, due to it communicating with several...
The address miss event is not shown as a transition in Figure 22 of the NRF51 Reference Manual. What state does the NRF51 enter upon an address miss and how long after the...
To use BEL application, the soft device must be downloaded before programming.
i can find a table shows that which soft device version is suitable for chip version.
how...
Our application is developing RC units for small (indoor) model airplanes - we want to be able to have multiple planes flying at once without "stepping" on each other.
...
I'm developing a NUS-based peripheral and adding a timeout to force a disconnect after a period of inactivity (i.e. no incoming NUS data). However my peripheral also provides...
Hi all,
I'm trying to use Ant+ HRM RX demo profile from nRF51_SDK_10 ( nRF51422 ) between my board PCA10028 and a Garmin rate sensor but I get some trouble.
Let me explain...
In the example iOS app and the DFU service in the firmware there is a DFU revision characteristic UUID 0x1534. The Nordic SDK documentation don't mention this characteristic...
HI，I'm having trouble in flash operation.I I did an experiment of flash operation.I call pstorage_store( ) or pstorage_load( ) very second after nrf51822 connected with app...
I would like to know how long TXIDLE state takes, between sending two data packets, for NRF51822? I want to minimize the time between sending two data packets, to maximize...
Hi,
Everyone,
I am trying to understand BLE app code and using debugger to find the values of the data sent over BLE during advertising mode.
But during debugging I...
Hello,
I am designing a custom protocol using the radio as a peripheral. The protocol has the chance for two nodes to transmit at the same time on the same channel. My...
Dear Sirs,
We compile the bootloader in dfu folder, sdk 10.0.0, with IAR, and download on 51822 QFAA chip. When trying the DFU function with MCP tool with version 3.10.0...
Hi, I have peripheral device using the nRF8001. I'm using the Android BLE SDK on the MCU to talk to it. I am having a problem where I am using lib_aci_set_local_data() SDK...
Hello,
I would like to implement the sniffer on PCA10036 (I have two, they are no more useful with the latest SDK). I programmed the hex file from this post:
link text...
Hi,
Can i use internal 16Mhz clock of nrf51822, to run peripheral uart example? I don't want to use any external clocks?
If yes what are the changes i need to make in...
