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Last activity 2017-07-20 10:12:59 +0200 by Akinobu Yokawa

Cannot receive UART on ble_app_uart with nRF52382

I am running the ble_app_uart example in SDK 13.0 with nRF52382.

  • First issue

The app can receive data via UART only when I use "Termite" as a terminal emulator. If I use "TeraTerm", "Putty" and "RealTerm" to send data ... (more)

133
views
no
votes
2
answers
Last activity 2017-07-18 18:16:46 +0200 by villaran

Multiperipheral UART Example

I am using 3 nrf52 DKs with S132 and SDK13 to try and implement a combination of the multilink and UART examples. I started with the ble_app_uart_c example and added the relevant code from the ble_app_multilink_central example to connect to ... (more)

72
views
1
vote
no
answers
Last activity 2017-07-16 16:48:07 +0200 by PB

Secure Serial DFU, app with UART stuck at bootloader

Hello,

I'm working on an UART application which uses experimental_bootloader_secure_serial bootloader. I've done a similar thing before with SDK-11 (though not a secure DFU) and after getting through building a secure bootloader, signing, etc. I was able to ... (more)

58
views
1
vote
2
answers
Last activity 2017-07-10 13:07:22 +0200 by hermann

How to disable buffer in Nordic Uart Service?

I'm trying to replace a RS232 cable with a BLE bridge with the Nordic Uart Service.

One nRF52832 configured as central (app_uart_example_central) and an other one as peripheral. The connection is working well with putty or the nRF connect ... (more)

33
views
no
votes
no
answers
Last activity 2017-07-09 21:07:09 +0200 by awef

nrf_cli w/o serial connection - reset loop

Using FreeRTOS to run nrf_cli. When Serial is not connected (as in RX,TX,GND) the board goes into a reset loop.

There are a few things that seem to help:

  1. Don't run cli_start()
  2. Don't run the thread ...
(more)

57
views
no
votes
2
answers
Last activity 2017-07-06 09:30:40 +0200 by Dimitar

Read external sensors with UART interface

Basically, it can be divided into two cases

Reading/sampling TX pin of the sensor (since usually nothing is sended back)

Send/Read possibility - in case of range switching/calibrating/programming

How easy/or how difficult is to have additional ... (more)

84
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no
votes
1
answer
Last activity 2017-07-06 02:57:44 +0200 by DragonAnger

nrf51822 uart question

First of all, Because of my poor English, and I'm newbie this kind of work.

I'm not sure you can understand my question. But I'll try

Currently, To see my borad's log datas, I use debug ... (more)

27
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no
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no
answers
Last activity 2017-07-06 01:36:02 +0200 by DragonAnger

nrf51822 wired UART and USB to UART

Hi, I have some question about wiredUART and USB to UART

I'm using nrf51822+BLE400.

Is there any difference UART communication between using USB to UART

and wiring on the UART pins?

I'm using ble_app_uart(SDK 12).

I ... (more)

59
views
no
votes
no
answers
Last activity 2017-07-05 16:54:07 +0200 by bayram

UART communication without CTS RTS.

Hello,

I am using nRF51822 and an STM32 communicating over UART. I want to test UART communication without CTS and RTS so I did the configuration as shown below:

static void uart_init(void) {

uint32_t                     err_code;
const app_uart_comm_params_t comm_params =
{   
BLE_USART_RX_PIN_NUMBER,
BLE_USART_TX_PIN_NUMBER ...
(more)

26
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no
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no
answers
Last activity 2017-07-05 13:33:13 +0200 by Petter Myhre flag of Norway

unable to enter passkey using uart after BLE_GAP_EVT_AUTH_KEY_REQUEST event

hii team,

iam trying to pair my central app with one peripheral device which is generating random passkey while pairing .when central (my App) is sending pairing request to peripheral iam getting BLE_GAP_EVT_AUTH_KEY_REQUEST event then iam trying uart_get to take ... (more)

100
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no
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no
answers
Last activity 2017-07-04 22:04:24 +0200 by PB

SDK 13.1 secure DFU [closed]

Hello,

I've been trying to test DFU over UART which has been added in SDK13.1 but after following every resource I've found I always end up with DFU not working

The first time I try to run ... (more)

42
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no
votes
no
answers
Last activity 2017-07-01 23:13:04 +0200 by awef

NRF52832 Uart Flow Control / CLI

When P0.15 is held high, the nrf_cli fails to talk to my computer via serial. Lowering P0.15 allows all buffered bytes to be sent to my terminal.

Oddly, Pin 15 is not part of my UART CONFIG.

As ... (more)

28
views
no
votes
no
answers
Last activity 2017-06-30 14:46:45 +0200 by Ray Breslin

Problem with re-configuration of Default-UART-pins

Hello,

I am having some trouble properly using UART and my MPU-sensor on a nRF52832-custom-board. The UART-pins I am trying to use are P0.05 for UART_TX and P0.06 for UART_RX, while the connections SDA and SCL for my ... (more)

59
views
no
votes
no
answers
Last activity 2017-06-28 11:46:22 +0200 by Help

Not getting any signal from uart tx pin in nrf52 dk using ble_app_uart and simple uart example. Why?

I'm trying to interface bno055 with nrf52 dk (PCA10040). I had written the relevant code for the nrf52 dk and added the same to ble_app_uart code and simple uart code. I'm using sdk 12. The code compiled without ... (more)

53
views
no
votes
1
answer
Last activity 2017-06-28 11:20:21 +0200 by Jørgen Holmefjord flag of Norway

Plotting the MPU Accelerometer values in real time

Hi..! Friends..! I am trying to detect the number of steps on accelerometer. For which I want to Plot the accelerometer values in real time (with minimum rate 50values/sec) such that I can analyse the data while walking.

The ... (more)

72
views
1
vote
1
answer
Last activity 2017-06-27 09:41:58 +0200 by endnode

How to connect multiple BLE HC 08 to nRF52832 (as central) using UART communication.

I am trying to connect multiple BLE HC 08 devices to nRF52832 DK but I am not getting how to configure the nRF52832 as central

74
views
1
vote
1
answer
Last activity 2017-06-27 07:40:32 +0200 by Rajat flag of India

Some CHARACTERS not printing in UART.

Hi Friends..! When I am sending data to UART to print it on terminal, some output data is getting skipped. please tell some solution.

58
views
1
vote
2
answers
Last activity 2017-06-27 07:39:33 +0200 by Rajat flag of India

MPU6050 Init failed when integrated with PCA 10028 (nrf51822)

Hi..! I am trying to *Receive ACCELEROMETER DATA FROM MPU6050 to PCA10028(NRF51822) AND WANTING TO PRINT IT ONTO UART using KEIL IDE. Code is getting compiled & getting Output on UART as:-

mpu6050 test

mpu6050 init fail

mpu6050 id is ... (more)

33
views
no
votes
1
answer
Last activity 2017-06-23 11:47:45 +0200 by endnode

nRF51822 Central mode

Hi,

I am adding BLE functionality to one of my existing product. I product will play the central role for which I am thinking to use nRF51822 based module.

I learned that central can be developed using softdevice S120. My ... (more)

50
views
1
vote
no
answers
Last activity 2017-06-22 15:30:54 +0200 by Stigui

s132 softdevice + example code not working

Hi, I’m having some troubles with example code : ble_app_uart_s132_pca10040. The code compile well in Keil and I can prog it in the nfr52 but it doesn’t run. When I check the code step by step in debug session ... (more)

55
views
no
votes
1
answer
Last activity 2017-06-22 06:33:39 +0200 by pawan_v61

unable to send data from uart ble for every 10msec

hello, I am using nrf52 dk. I am doing a project that uart send the adc data through bluetooth to nRF UART v2.0 app for every 10msec. but when i am transmitting the data the bluetooth connectivity was lost ... (more)

99
views
1
vote
1
answer
Last activity 2017-06-20 13:16:19 +0200 by Sigurd flag of Norway

Combining examples in SDK13

Hello,

I have a problem while combining peripheral examples in SDK13. I am trying to combine twi_sensor and uart but when I do this in uart folder, compiler gives following error:

> Linking target: _build/nrf52832_xxaa.out

> _build/nrf52832_xxaa_main.c.o ...
(more)

57
views
2
votes
1
answer
Last activity 2017-06-20 09:20:31 +0200 by Jørgen Holmefjord flag of Norway

TWI sensor over UART on nrf52832

Hello,

Now, I am merging my UART code with the TWI sensor example (I use SDK 13). Now my error after compiling the code is:

In file included from ../../../../../../components/libraries/util/app_error.h:57:0,
                 from ../../../../../../components/libraries/util ...
(more)

38
views
no
votes
no
answers
Last activity 2017-06-18 11:47:59 +0200 by Carey

APP_UART_FIFO_ERROR and restart

i used 52832 UART to receive data command, but if we continue to test many times, the pragarm sometimes goto the APP_UART_FIFO_ERROR and restart. why?

38
views
no
votes
1
answer
Last activity 2017-06-17 13:58:05 +0200 by Turbo J

UART heat problem

Hi I have working module which communicates via uart with another module. It works good, unless it is heated to 40C. After that temperature UART communication is not correct, there are framing errors etc. What might be wrong with temperature ... (more)

2k
views
4
votes
3
answers
Last activity 2017-06-17 00:49:16 +0200 by Nelson Rodriguez

printf / UART debug does not work properly on nRF51822 s110 ble_app_hts example.

Hi,

Thanks for taking the time looking into issue. We are using Keil uVision 5.14. Our target is a custom board (BMD200 eval Module based on nRF51822) We were able to run uart example with expected outputs to Putty ... (more)

32
views
no
votes
no
answers
Last activity 2017-06-14 09:49:10 +0200 by satheesh

without interrupt receive data via uart0

hi,

how to send and receive data using UART0 without interrupt request with softdevice s110. i tried to disable interrupt it could not give any response.

please help any one,

thanks advance,

50
views
no
votes
no
answers
Last activity 2017-06-10 05:40:24 +0200 by QK-Huang flag of Taiwan, Province of China

Read uart data while advertising beacon

I want to use UART to read GPS data while advertising. After I add uart function to ble_beacon_example, UART API app_uart_get() always return NRF_ERROR_NOT_FOUND.What can I do? Board is nRF52-DK. SDK is nRF5_SDK_11.0.0_89a8197. This is my codemain.c

127
views
1
vote
1
answer
Last activity 2017-06-09 11:27:34 +0200 by Kristin flag of Norway

How to make the nRF51 UART Peripheral Example connect/function with the nRF52 UART Central Example

I am attempting to connect and send data between an nRF51422 (DK) running the UART Peripheral Example Code and an nRF52832 (DK) running the UART Central example. I am able to successfully load the code onto both devices and monitor ... (more)

71
views
2
votes
1
answer
Last activity 2017-06-07 16:42:26 +0200 by Marcus

DFU Bootloader without NRF_LOG/UART

Greetings,

I'm having some trouble using the secure DFU bootloader and buttonless DFU service in my application. The code for both of these has been taken from their respective examples in the 13.0.0 SDK. Our application code ... (more)

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