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Hi, In my design, there is a tag used by 24l01,It can transmit the temperature value.In the tag, the parameters are like this:
addrofch = 0xe7; addrofch = 0x7e; addrofch = 0xe3; addrofch = 0x0; addrofch = 0x0 ...
I am working with the uart module. While configuring the uart I encounter 2 issues.
First when in the uart_init function the pin for uart output is configured, a zero byte is emitted. This also happens some time after ... (more)
What is the maximum data rate for the nRF24AP2 when using the Synchronous serial interface? I cann't see it in the datasheet.
Is there anyone can answer me?Thanks.
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 types of devices. To simplify the software design, we would like to not ... (more)
I transmit a data packet to AP2, i wonder if it needs a sequence for resetting or not while AP2
And, I send a packet data to AP2 by UART(AP2 had been set in asynchronous mode) ,such ...
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 example as a reference code and modified it to ... (more)
Why does this simple float arithmetic cause my GDB client to hang and my GDB server to say "GDB closed TCP/IP connection"? I'm sure I've got other float operations working just fine.
float a, b, c; a ...
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 4.4.2, and SD is ... (more)
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 is using the Nordic nRF DK ... (more)
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 i am not getting onservicediscovered (onsearchcomplete from gatt) callback in log ... (more)
How many RX buffers are in S110 SoftDevice? I know there are 6 TX buffers (so you can send 6 packets per Connection Interval). How is it on receiving? Is it e.g. possible to send Read Blob Request ... (more)
I saw that the app_timer uses the SWI0. Could you explain what it does and what the advantage is compared to "timer_list_handler_sched()" calling "timer_list_handler()" directly?
how long does it take time if i would wake up a nrf51422 rev2 (ANT and BLE) in deepest possible sleep mode ?
And how long does it tai if after wakeup it had to communicate to an other ANT ... (more)
I want to count clocks in order to implement a watch. I use the RTC0 as my time-base and count mainly with this device. As it has just 24 bits it would not last for long, which is why I ... (more)
In an ongoing company project we use a couple of nRF51 transceivers forming a beacon enabled wireless sensor network consisting of one base station and multiple sensor nodes. For our application it is required that we are able to ... (more)
I've developed an application and tested it on the evaluation kit. Now i'm trying to run it on a custom board with a nrf51822 chip on it. I've made modifications to exclude evaluation board specific code ... (more)
Hi, I've created an application using the S110 experimental ANCS demo. I successfully implemented ANCS and then began to structure my application around it. At some point I realized that my ANCS handler was causing a hard fault. The ... (more)
I'm looking for a way to use the nordic uart service (https://devzone.nordicsemi.com/docume...) from Linux using the native Linux BLE Stack (BlueZ). My application is written in Java. This way the communication would be possible with ... (more)
new to nordic and keil need help compiling custom project currently my main file only works with the nordic 1822 series processor and in your example. I need to have it better packaged so I can archive it into our ... (more)
before i write the flash, it has been erased.so ,its value is all 0xff. when i write 0x00 to flash address 0x0001,the value read out is not 0x00 but 0x01,and the value in flash address 0x0000 is ... (more)
I am getting get BLE_EVT_USER_MEM_REQUEST and BLE_GAP_EVT_CONN_PARAM_UPDATE event, when writing to ble device, sample code did not handle these event, and seems no document about what should we do about it, I also found
/**@brief Provide a user memory block ... (more)
Has anybody got it working? I ported the EPD library from Adruino EPD libray but not sure where its going wrong.
Hello: Why do I erase SDK5.2 version of flash and read not, in SDK4.2 can. I tested nrf51_sdk_v5_2_0_39364\nrf51822\Board\nrf6310\flashwrite_example is a good example.However, I use the store will not work inside BLE，This is ... (more)
I use two evk board to connected and test the uart serialization sample(ble_s110_serialization), one is ble_app_hrs and one is ble_app_connectivity. But I have one question that need your confirm.
We want to compare serialization(51422 and 51822) and ... (more)
I want to control GPIO toggle by PPI. Timer1 is in timer mode. CC is 1000, and CC is 8000. I use compare to toggle gpio18 by PPI. I also want to use compare to toggle ... (more)
I'm having some trouble successfully entering ON,IDLE mode. I have pared-down my application to do the following:
1) Initializes the app_timer using the scheduler:
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_MAX_TIMERS, APP_TIMER_OP_QUEUE_SIZE, true);
2) Initializes the BLE stack and softdevice:
BLE_STACK_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_RC_250_PPM_4000MS_CALIBRATION ... (more)
Hi, While testing the device firmware update through the nRFtoolbox android application, i get "device has no required service" error more frequently.
I use latest version of sdk for nrf51822 evaluation board and latest version of apk for Nexus 4 ... (more)
I need to create timeout below 1ms. I would pretty much like to use timer for that because I do not want to hold the cpu inside cycle. For me it is not important the exactness of the time but ... (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)
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)