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Last activity 2017-11-14 15:48:07 +0200 by kxJiang

MISO of SPI nand flash outputs no data When acts as both ESP32 and NRF52832's slave [closed]

Both NRF52832 and ESP32 have access to the same nand flash through their spi interface, either one can successfully reads the flash's id without the other's exits. If both exist on the same spi interface, neither can read ... (more)

36
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Last activity 2017-11-13 04:18:39 +0200 by Samuel Zhang

SPI configuration on nRF52832

Hi, Dear Nordic experts:

I encountered with a couple of queer issue while configuring SPI port on nRF52832 with PCA10040 demo board. Here I wrap up as below:

1) First, I tried to enable both TWI0 (master) and SPI0 based ... (more)

25
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1
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1
answer
Last activity 2017-11-10 11:39:34 +0200 by RK flag of Singapore

Transmitting 16 bit at once over SPI on nRF51-DK

Forgive me if this is a stupid question, but I am new to programming microcontrollers other than Arduino and SPI in general.

I have a DAC that has a 16-bit register and I need to write to it using SPI ... (more)

51
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1
answer
Last activity 2017-11-04 02:00:35 +0200 by Ed

SPI master driver for nRF52832

Hello,

Question regarding using the SPI master peripheral with DMA to communicate from the nRF52832 to the ads1296 device .

In order to use this device in the mode and sampling rate I need, with the number of channels, I have ... (more)

36
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1
vote
1
answer
Last activity 2017-11-03 08:00:17 +0200 by Bhupinder Singh

nRF52840 SPIS transmit failure

We are using nRF52840 as SPI slave and imx7 as SPI master.

Data sent by imx7(master) is received at nRF52840(slave) correctly, however the data sent by slave is not received at master (MISO) correctly. Two bytes of data ... (more)

55
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1
answer
Last activity 2017-10-31 09:05:04 +0200 by Jørgen Holmefjord flag of Norway

SPI Example Symbol cannot be resolved

I'm trying to set up SPI example from SDK12.3, but I get error at line 53 of main.c

static const nrf_drv_spi_t spi = NRF_DRV_SPI_INSTANCE(SPI_INSTANCE);

It's saying

Symbol "NRF_SPI0" could not be resolved

Symbol "SPI0_TWI0_IRQn" could not ... (more)

80
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2
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1
answer
Last activity 2017-10-31 06:01:11 +0200 by RK flag of Singapore

[NRF52840] SPI and SPIS example!

I am working with SPI and SPIS examples ( sdk version 13). SPI of nrf52 is full duplex. In the example, I can send data from Master board to Slave board then Master board will receive response data from Slave board ... (more)

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2
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Last activity 2017-10-30 11:03:52 +0200 by Amit

SPI handler callbacks not invoked with NRF_SDH_DISPATCH_MODEL_INTERRUPT

Hi, We are currently migrating our codebase from SDK 13 to SDK 14 for NRF52832 based board. One major difference we see is that SPI transfer completion callbacks are not invoked when transaction is started from within BLE context; based ... (more)

79
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1
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1
answer
Last activity 2017-10-27 11:30:59 +0200 by Jørgen Holmefjord flag of Norway

Problems to manage SPI pins to communicate with the slave.

Hi to everyone!

I'm trying to use the nRF52832 board as master to use an external device (as slave) through SPI. I take the example peripheral/SPI to start to learn how to work with this. In the example ... (more)

39
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1
answer
Last activity 2017-10-19 10:50:45 +0200 by Sigurd flag of Norway

spi slave race condition

Hi!

After reading few posts about spi slave/master issues... I'm also challenging with one of them. I have following setup nrf51822, s130 2.0.1 and sdk 12.3.0… nrf51 (spi slave) is communicating with arm cortex ... (more)

35
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Last activity 2017-10-15 00:19:52 +0200 by Musa

Random SPI data shifting at ~72kB/s throughput

Hello,

I am using nRF52 with ADS1292, and i am trying to sample at 8kHz with data throughput of 72kB/s, but some data is being randomly shifted giving me random spikes. This occurs on all available clock speeds to ... (more)

91
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1
answer
Last activity 2017-10-12 20:07:19 +0200 by Nguyen Hoan Hoang flag of Canada

Issue running TWI/SPI on nRF52832, works with Kiel but not GCC

Hi,

Just curious to know if anyone else had this issue and how they solved it.

My colleagues and I are working on code based on the Nordic Uart Service, in SDK13.1.0 with SD132v4.0.2 on an ... (more)

33
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1
answer
Last activity 2017-10-12 08:23:58 +0200 by wszellen

How does writing to SPI1->TXD affect SPIS transaction on nRF51822

I have a strange bug, that I do not have any good answer for.

In the software, I use either SPI1 or SPIS depending on current configuration, I have seen some rare cases where I see unexplained 0 values on ... (more)

92
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answers
Last activity 2017-10-11 12:30:36 +0200 by arjun

SPI External Flash Interface

Hi,

I am trying to interface external flash with the nrf52. I am able to read the device id. After writing to the status - configuration - bank address registers, I am able to read the register values.

But when I am ... (more)

30
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Last activity 2017-10-10 15:03:20 +0200 by DaveyJones

How to receive information from pressure sensor over SPI using nRF52832 ?

I am using nRF52 based NINA-112b EVK I saw the spi master example to send the data to slave. Do you have any idea what to do if I want to receive the data from the slave. and how to ... (more)

27
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1
answer
Last activity 2017-10-09 09:21:35 +0200 by Jørgen Holmefjord flag of Norway

Error Listing symbols

Hi All,

I am working on BLE+SD card Library, s132. Although i am getting certain errors which i am unable to counter.:-

*** Using Compiler 'V5.06 update 4 (build 422)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
Build target 'nrf52832_xxaa ...
(more)

165
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1
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1
answer
Last activity 2017-10-04 10:38:43 +0200 by David Edwin

How (if able) to add ethernet to nRF52832?

I got my developer kit and have been playing around with BLE. But I got my mind set on a solution with several nodes as sensors, and one "base" node connected with an API making http calls over ethernet.

I ... (more)

44
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Last activity 2017-10-01 04:49:08 +0200 by phob

NRF51822 sometimes not working

Hi, I am using NRF51822 and sdk12.2. I am using Softdevice s130 with peripheral experiment_ble_blinky example. I have merge UART example in this and it is working fine.

Yesterday i flashed and it was working perfectly. Even i connected ... (more)

79
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1
vote
1
answer
Last activity 2017-09-21 13:49:13 +0200 by DerPMO

nRF52 SPI loops when waiting for NRF_SPI_EVENT_READY after initialisation [closed]

So I switched from Bluemod+S (nRF51822) to Bluemod+S42 (nRF52832) on my custom board and am trying to adapt my existing code to work on the newer model. Apart from various obvious and some not so obvious changes I ... (more)

53
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no
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1
answer
Last activity 2017-09-15 16:15:13 +0200 by Bill Finger

nRF52832 SPIS PAN 109 Workaround Issue

I've been using the nRF52832 chip for over a year and it works great. However, for a new project I designed a board so that the nRF52 chip was the slave on a SPI bus, and I immediately ran ... (more)

52
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no
votes
1
answer
Last activity 2017-09-15 09:29:44 +0200 by Martin Børs-Lind flag of Norway

Why isn't my PPI/SPI channel triggered with GPIOTE?

Hello,

I would like to detect a change in a pin(GPIO_IN_NUMBER) and depending on it I would like to trigger a SPI transaction, this should happen through PPI.

So far I have configured my PPI in this way, is ... (more)

63
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no
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1
answer
Last activity 2017-09-11 16:03:24 +0200 by Prasad

Are SPI interrupt disabled in GPIOTE handler?

I am writing code for nrf51822 with softdevice and an accelerometer is connected to the nrf chip. The accelerometer provides interrupt to nrf chip over GPIOTE whenever there is data available to read. Upon receiving the GPIOTE interrupt, I am ... (more)

82
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Last activity 2017-09-11 10:39:24 +0200 by ndarkness

Why is not my Timer triggered when configured through PPI and SPI?

Hello,

I am trying to use ArrayList for EasyDMA along with PPI but I am not sure whether or not I am configuring it properly to be used with the SPI interface.

So far I have set it up as ... (more)

137
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no
votes
1
answer
Last activity 2017-09-07 16:00:16 +0200 by Turbo J

Can I get data from an external ADC without using CPU time?

Hello,

I would like to make use of an external ADC that is connected to my nRF52832 through SPI & easyDMA,minimizing the use of the CPU (or without using the CPU).

The sampling frequency, when nRF52832 will request a sample ... (more)

103
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no
votes
1
answer
Last activity 2017-09-03 19:46:10 +0200 by Antonio

Bug in SPI master driver w/SDK 14.0

I am using SPI 2 (not SPIM) and just migrated my project to SDK14 from 13.1.

I kept getting "Wrong configuration" on compile, until I realized that on the nrf_srv_spi.c on the #defines you replicated SPI1_WITHOUT_DMA twice on ... (more)

489
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1
vote
1
answer
Last activity 2017-08-30 18:48:55 +0200 by Nestor Matas

nrf52832 SPI to builtin LIS2DH accelerometer

Hi, I have the D52QD2M4IA-A chip (from dynastream) that has inside nrf52832 chip. It has also builtin an onboard LIS2DH accelerometer. However when I am trying to connect to it through SPI interface this seems not to respond back. Can Anyone help?

53
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no
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1
answer
Last activity 2017-08-30 09:38:06 +0200 by Martin Børs-Lind flag of Norway

Writing in SD card at fixed time-intervals by reading from ADC

Hi,

I have successfully sampled my signal using SAADC example at a sampling frequency of 10 Hz. I am using a flag in the saadc_callback() function which I read from the main() function and accordingly instruct to write the sampled ... (more)

698
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1
vote
4
answers
Last activity 2017-08-23 16:08:53 +0200 by airshaven

nRF52832- why when using nrf_drv_spi with an ADXL362 I need to set the clock in high drive (H0H1)

Hello!

I am working on a project. The goal is to retrieve every seconds some acceleration data from the ADXL362 accelerometer.

I configured the spi in blocking mode by passing NULL as event handler nrf_drv_spi_init(_spi, &_spi_config, NULL);

This method ... (more)

1k
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1
vote
4
answers
Last activity 2017-08-21 23:10:17 +0200 by ShannonPahl

Transfer more than 255 bytes with SPI master on nrf52

Hi everybody,

I am trying to read a 1024 bytes FIFO buffer from an IMU (Bosh BMI160) using the SPI master driver on nrf52832 and sdk 12.2.

I know others had the same problem and I've read the ... (more)

35
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no
answers
Last activity 2017-08-21 16:20:22 +0200 by ndarkness

Does setting down SPIS_CSN_PIN for one SPI instance affect the other?

Hello,

I have a brief question regarding to SPI, I have two instances of SPI, SPI0 and SPI1, I was wondering whether or not changing the value of SPIS_CSN_PIN to SPI0 would affect to SPI1 and viceversa. Could you enlighten ... (more)

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