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Last activity 2017-12-07 13:36:34 +0200 by Kaito

How to disconnect the uart when data is not transmitting

Hi! i am thinking about cut off uart when data is not transmitting. As a method 1, i am thinking about using CTS and RTS Pin which is hardware flow control! ①Is this possible?? ②also,Is there a sample code ... (more)

51
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no
votes
1
answer
Last activity 2017-11-28 16:56:19 +0200 by Davide flag of Italy

uart baudrate nrf52

I'm working with uart on the nrf52832 and I'm facing an issue related to the baudrate.

In this post a formula for calculating the baudrate given the register value is given. By applying that formula to the UART_BAUDRATE_BAUDRATE_Baud921600 ... (more)

49
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no
votes
1
answer
Last activity 2017-11-23 10:05:19 +0200 by Jørgen Holmefjord flag of Norway

How trigger sampling through PPI on an RTC event?

Hi,

I am using nRF52832 and softdevice is S132 adk13.1. My application is read 3 ADC channel one by one and send this value to android app using NUS. For this i have use This Time drive Adc exmple ... (more)

133
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3
votes
1
answer
Last activity 2017-10-13 02:59:38 +0200 by MANGO

Hello,Can anyone help me out by giving me complete details of this?

i would like to print register values of an external sensor on my screen using UART! I'm reading and writing into those registers using SPI! Printing a normal message using NRF_LOG_INFO function is fine, but how do i print ... (more)

153
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1
vote
1
answer
Last activity 2017-09-25 12:16:37 +0200 by Abhinav

Implementing UART profile between NRF52832 (as central) and HM10 (as peripheral)

I am facing some issue, I am using HM10 ble module as peripheral and NRF52832 (Redbear NANO v2) as central device. I using SDK "nRF5_SDK_12.3.0_d7731ad" and example program "nRF5_SDK_12.3.0_d7731ad\nRF5_SDK_12.3.0_d7731ad\examples\ble_central\ble_app_uart_c". I ... (more)

118
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no
votes
1
answer
Last activity 2017-09-18 23:28:47 +0200 by RK flag of Singapore

NRF52 Interfacing sensor with serial through UART

I have a sensor with serial protocol of 7 bits data, even parity, 2 stop bits. I wanted to use uart library to interface with this sensor. But I couldn't find the settings to change data bits, even/odd ... (more)

75
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1
vote
1
answer
Last activity 2017-09-12 18:37:36 +0200 by fanleung

loop in nrf_drv_uart_rx_for_uarte() after run uart_close()

Hi, now I'm using NRF52832 's UART with SD12 and it required to receive 40 bytes per 10ms.

In fact, it does not take 10ms to complete the reception.So my idea is to create a 10ms timer task ... (more)

98
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no
votes
3
answers
Last activity 2017-08-30 05:00:05 +0200 by yy

nrf52832 uart buffer size

hi, i have set the uart buffer size as 64. but when i am transmitting data,i found that the size might not enough(eg. there are 100 Bytes to send).how could i do except for expanding the size ... (more)

126
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no
votes
1
answer
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)

146
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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)

247
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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

55
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answers
Last activity 2017-06-07 01:11:02 +0200 by MichaelNordicUser

NRF52 no longer advertising or flashing led

I have two NRF52 chip sets. Yesterday, I was able to build and flash the Beacon and UART sample projects onto both of these chipsets.

After building and flashing, a small blue LED light would start blinking periodically. I could ... (more)

181
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1
vote
2
answers
Last activity 2017-04-24 03:53:47 +0200 by cswanson420

Debug why DFU start packet not starting DFU

Firstly, platform: Sparkfun 52832 breakout board, DFU using UART, flashing an application, using nrfutil.

The problem fundamentally is the nRF52832 is not sending an ack that it received the DFU start packet. The packet is formatted correctly as defined by ... (more)

200
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no
votes
1
answer
Last activity 2017-03-17 10:42:27 +0200 by Wojtek flag of Poland

How Can I Create Bluetooth Serial Port?

I connected a Classic Bluetooth Device on my PC through by Bluetooth.

1-)I saw this message:

image description That means "Bluetooth Services Configuring"

2-)I saw this in device manager:

image description

But, When I connected nRF52832 on my PC through by Bluetooth ... (more)

59
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no
votes
1
answer
Last activity 2017-03-16 10:03:54 +0200 by dchaudet

No error information UART nrf52 sdk12.1 [closed]

Hi, I'm using the UART to talk to a radio module with sdk 12.1 on nrf52.

I'm seeing frequent UART errors, where the event handler is called with event type APP_UART_COMMUNICATION_ERROR. Debugging in the UART0_IRQHandler() with this ... (more)

185
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no
votes
1
answer
Last activity 2017-03-15 10:55:24 +0200 by Kristin flag of Norway

Adding UART breaks code's functionality

Hi, I'm learning to use the nrf52832 (PCA10040). I'm on SDK12.2.0 S132.

I've done those basic tutorials while merging codes from the examples. My code can currently read the die temperature and broadcast it via ... (more)

175
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3
votes
1
answer
Last activity 2017-03-14 13:46:32 +0200 by Wojtek flag of Poland

Is it possible to have a second UART on nrF52?

Hello,

I would be interested on knowing whether I may have a secondary UART on the nrF52 chip or not. I would like to communicate my nRF52 with a RN2483 and this is done through UART, however I see that ... (more)

332
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2
votes
1
answer
Last activity 2016-10-18 15:18:39 +0200 by Sigurd flag of Norway

nRF UART app not detecting

Hi, I have tested a sample code which sends some data through BLE in nRF52 development kit(PCA10400). The code is attached below.

nRF5_SDK_11.0.0_MPU6050_Acc_X_Output.7z

I was able to connect the nRF UART app with the nRF DK ... (more)

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