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printf causes hard_fault
#nrf52840
I have an application for the nrf52840dk_nrf52840 board where I am using printf() to print some messages. All works most of the time and the messages are shown correctly on my serial console. However,
I have an application for the nrf52840dk_nrf52840 board where I am using printf() to print some messages. All works most of the time and the messages are shown correctly on my serial console. However,
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By
Stefan Hristozov
· #2408
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Support for Adafruit Feather #nrf52840 Sense
#nrf52840
Hi Leo, The Adafruit Sense is much like the Arduino Sense, both use the nRF52840 but use a modified bootloader. They have been designed to work with the Arduino platform. Luckily work porting the Ardu
Hi Leo, The Adafruit Sense is much like the Arduino Sense, both use the nRF52840 but use a modified bootloader. They have been designed to work with the Arduino platform. Luckily work porting the Ardu
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By
William Fish
· #2372
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Support for Adafruit Feather #nrf52840 Sense
#nrf52840
Hi Leo, Zephyr seems to support the nRF52840 Feather Express, but not the Feather Sense: https://docs.zephyrproject.org/latest/boards/arm/adafruit_feather_nrf52840/doc/index.html This is the right pla
Hi Leo, Zephyr seems to support the nRF52840 Feather Express, but not the Feather Sense: https://docs.zephyrproject.org/latest/boards/arm/adafruit_feather_nrf52840/doc/index.html This is the right pla
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By
Carles Cufi
· #2366
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Support for Adafruit Feather #nrf52840 Sense
#nrf52840
Hello Zephyr team! I have a question about board support and I also need your help building an example project. 1) Does Zephyr support the board below? How would I go about using its sensors? https://
Hello Zephyr team! I have a question about board support and I also need your help building an example project. 1) Does Zephyr support the board below? How would I go about using its sensors? https://
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By
Leo
· #2365
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contiki-ng RPL-border router in zephyr
#nrf52840
Hello, I am investigating if the implementation of contiki-ng RPL border router can be useful in zephyr. I am trying to set up the echo client example of zephyr using the overlay-802154.conf file in o
Hello, I am investigating if the implementation of contiki-ng RPL border router can be useful in zephyr. I am trying to set up the echo client example of zephyr using the overlay-802154.conf file in o
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By
Nikos Karamolegkos
· #2363
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MCUboot placed to immutable flash
#nrf52840
#crypto
#dts
In general, that's left as an exercise for the user, as far as I know. "Nikos Karamolegkos via lists.zephyrproject.org" <nkaram=ics.forth.gr@...> writes:
In general, that's left as an exercise for the user, as far as I know. "Nikos Karamolegkos via lists.zephyrproject.org" <nkaram=ics.forth.gr@...> writes:
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By
Bolivar, Marti
· #2315
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MCUboot placed to immutable flash
#nrf52840
#crypto
#dts
Hello, I am studying this which mentions that the MCUboot is placed to immutable section of flash. How is this implemented? I can not see anywhere information about immutable MCUboot partition.
Hello, I am studying this which mentions that the MCUboot is placed to immutable section of flash. How is this implemented? I can not see anywhere information about immutable MCUboot partition.
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By
Nikos Karamolegkos
· #2310
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Erasing flash memory problem in nrf52840-dk
#flash
#nrf52840
I solved the issue. The size should be multiple of 4096 (sector size). An other problem that I am facing is that when I run the lwm2m-client over openthread and the last address of the program is 0x59
I solved the issue. The size should be multiple of 4096 (sector size). An other problem that I am facing is that when I run the lwm2m-client over openthread and the last address of the program is 0x59
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By
Nikos Karamolegkos
· #2300
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Erasing flash memory problem in nrf52840-dk
#flash
#nrf52840
Hello, I have made a device DTS overlay file to create my partitions in flash, so I have 3 different partitions (banks) lets say A, B, C respectively. It seems to work. However, each time I am trying
Hello, I have made a device DTS overlay file to create my partitions in flash, so I have 3 different partitions (banks) lets say A, B, C respectively. It seems to work. However, each time I am trying
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By
Nikos Karamolegkos
· #2286
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nrf52840 how get the printed MAC address on the dongle with C
#nrf52840
Hi, probably a very simple question. How do I get in my C code the MAC address which is printed on the nrf52840 dongle? Thanks Marcel
Hi, probably a very simple question. How do I get in my C code the MAC address which is printed on the nrf52840 dongle? Thanks Marcel
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By
Marcel
· #2260
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Hardware acceleration using cryptocell engine in
#nrf52840
#crypto
Hi Nikos, The Cryptocell requires proprietary software that is not part of Zephyr. If you’d like to use the Cryptocell I recommend you take a look at Nordic’s Zephyr-based SDK, the nRF Connect SDK: ht
Hi Nikos, The Cryptocell requires proprietary software that is not part of Zephyr. If you’d like to use the Cryptocell I recommend you take a look at Nordic’s Zephyr-based SDK, the nRF Connect SDK: ht
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By
Carles Cufi
· #2254
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Hardware acceleration using cryptocell engine in
#nrf52840
#crypto
Hello, I am going to use mbedtls library in order for sha256 hash calculation and ECDSA verify using nrf52840-dk. I can not find any configuration parameter for hardware acceleration. The device suppo
Hello, I am going to use mbedtls library in order for sha256 hash calculation and ECDSA verify using nrf52840-dk. I can not find any configuration parameter for hardware acceleration. The device suppo
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By
Nikos Karamolegkos
· #2253
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LWM2M client to nrf582540-DK
#nrf52840
#networking
Hi all, I would like to ask you if I can change the lwm2m observer period. There is enough delay (some seconds), after calling lwm2m_engine_set_u8("5/0/3", STATE_IDLE) until the server get informed.
Hi all, I would like to ask you if I can change the lwm2m observer period. There is enough delay (some seconds), after calling lwm2m_engine_set_u8("5/0/3", STATE_IDLE) until the server get informed.
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By
Nikos Karamolegkos
· #2250
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Problem with the NVS filesystem on
#nrf52840
#nvs
Are you in interruption context when trying to read/write in the callback ? I doubt this is a good idea to access a filesystem from such place... (may sleep, may block...) You should defer the read/wr
Are you in interruption context when trying to read/write in the callback ? I doubt this is a good idea to access a filesystem from such place... (may sleep, may block...) You should defer the read/wr
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By
Arnaud Mouiche
· #2243
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Problem with the NVS filesystem on
#nrf52840
#nvs
Update: if I write and read in a function without some condition (i.e button is pressed) works fine. The problem is when the write/read process is taking place to button_pressed callback function.
Update: if I write and read in a function without some condition (i.e button is pressed) works fine. The problem is when the write/read process is taking place to button_pressed callback function.
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By
Nikos Karamolegkos
· #2242
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Problem with the NVS filesystem on
#nrf52840
#nvs
Hello again, I am following the NVS sample to create my own code in order to write to the NVS filesystem. The idea is to change a uint8 variable in the NVS when the button is pressed. Therefore, when
Hello again, I am following the NVS sample to create my own code in order to write to the NVS filesystem. The idea is to change a uint8 variable in the NVS when the button is pressed. Therefore, when
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By
Nikos Karamolegkos
· #2241
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LWM2M client to nrf582540-DK
#nrf52840
#networking
I just meant that OpenThread uses mbedTLS as it’s crypto library, for instance: https://github.com/openthread/openthread/blob/master/src/core/crypto/sha256.cpp#L41 Regards, Robert
I just meant that OpenThread uses mbedTLS as it’s crypto library, for instance: https://github.com/openthread/openthread/blob/master/src/core/crypto/sha256.cpp#L41 Regards, Robert
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By
Lubos, Robert
· #2217
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LWM2M client to nrf582540-DK
#nrf52840
#networking
Perfect. I will prepare the configuration for the contribution. I made the changes you proposed and worked (I set MAX_PACKET_SIZE to 1024). Just to be clear by what do you mean by "OT use mbedTLS inte
Perfect. I will prepare the configuration for the contribution. I made the changes you proposed and worked (I set MAX_PACKET_SIZE to 1024). Just to be clear by what do you mean by "OT use mbedTLS inte
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By
Nikos Karamolegkos
· #2216
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LWM2M client to nrf582540-DK
#nrf52840
#networking
Hi Nikos, Contributions are always welcome, would be also good to contribute the overlay-ot.conf to the lwm2m_client sample, once you have configuration that is proven to work. We even have an outstan
Hi Nikos, Contributions are always welcome, would be also good to contribute the overlay-ot.conf to the lwm2m_client sample, once you have configuration that is proven to work. We even have an outstan
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By
Lubos, Robert
· #2214
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LWM2M client to nrf582540-DK
#nrf52840
#networking
Thanks Robert, with your help I managed to make the OTBR work (I can make a documentation as contribution for the project if you are interested). Although, the device is registered to the leshan serve
Thanks Robert, with your help I managed to make the OTBR work (I can make a documentation as contribution for the project if you are interested). Although, the device is registered to the leshan serve
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By
Nikos Karamolegkos
· #2212
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