nRF9160DK configure external flash to work with nrf9160

RE: nRF9160DK configure external flash to work with nrf9160

Svetlio141 — Tue, 04 Jan 2022 10:35:55 GMT

[quote userid="15146" url="~/f/nordic-q-a/82623/nrf9160dk-configure-external-flash-to-work-with-nrf9160/345636#345636"]

Did you set

CONFIG_SPI_NOR=y

[/quote]

I hadn't set this. Now that I did, I established communication with the flash and everything is working.

Thank you for the help!

RE: nRF9160DK configure external flash to work with nrf9160

Sigurd — Mon, 03 Jan 2022 11:27:49 GMT

Did you set

CONFIG_SPI_NOR=y

in prj.conf as well?

If it does not work, can you upload the spi_flash sample with the changes you did ?

RE: nRF9160DK configure external flash to work with nrf9160

Svetlio141 — Wed, 22 Dec 2021 13:07:43 GMT

Thank you for the remark,

I changed the specifications to search for the MX25R64.

#define FLASH_DEVICE DT_LABEL(DT_INST(0, jedec_spi_nor))

Still when I run the code I get:
*** Booting Zephyr OS build v2.6.99-ncs1 ***
DataFlash sample on nrf9160dk_nrf9160
Device MX25R64 not found!

Itried with the sample code for spi_flash too and get the same result that the MX25R64 is not found.

I checked if the following overlay configuration:

&external_flash_pins_routing {
status = "okay";
};

for the nRF52 is present in the zephyr.dts file after the build, and it is.

Also checked the zephyr.dts of the nRF9160dk and the overlay file which I included there is also present:

&spi3 {
status = "okay";
sck-pin = <13>;
mosi-pin = <11>;
miso-pin = <12>;
cs-gpios = <&gpio0 25 GPIO_ACTIVE_LOW>;
mx25r64: mx25r6435f@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <8000000>;
label = "MX25R64";
jedec-id = [c2 28 17];
sfdp-bfp = [
e5 20 f1 ff ff ff ff 03 44 eb 08 6b 08 3b 04 bb
ee ff ff ff ff ff 00 ff ff ff 00 ff 0c 20 0f 52
10 d8 00 ff 23 72 f5 00 82 ed 04 cc 44 83 68 44
30 b0 30 b0 f7 c4 d5 5c 00 be 29 ff f0 d0 ff ff
];
size = <67108864>;
has-dpd;
t-enter-dpd = <10000>;
t-exit-dpd = <35000>;
};

RE: nRF9160DK configure external flash to work with nrf9160

Sigurd — Tue, 21 Dec 2021 10:33:31 GMT

[quote user=""]I am trying to use the AT45 DataFlash driver sample code. It says that it is tested for the nRF9160DK. [/quote]

I see now that you are trying to use the AT45 flash. This AT45 Flash is not the one that is on the nRF9160DK board. I believe an external AT45 board is needed for this spi_flash_at45 sample.

On the nRF9160DK we use the mx25r6435f flash.

https://infocenter.nordicsemi.com/topic/ug_nrf91_dk/UG/nrf91_DK/external_memory.html

https://github.com/nrfconnect/sdk-zephyr/blob/v2.7.0-ncs1/boards/arm/nrf9160dk_nrf9160/nrf9160dk_nrf9160_common_0_14_0.dtsi#L42

RE: nRF9160DK configure external flash to work with nrf9160

Svetlio141 — Tue, 21 Dec 2021 08:06:30 GMT

Hello,

I tried powering the board on and off but it still doesn't work.

I specified the revision as you instructed but this doesn't work too.

When I build my project on the nRF9160 I can only use the 9160dk_nrf9160 and not the 9160dk_nrf9160_ns. When I try to use the _ns I get this error when building:

[78/184] Building C object zephyr/CMakeFiles/zephyr.dir/lib/os/fdtable.c.obj
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'c:\...........\ncs\v1.7.0\toolchain\opt\bin\cmake.EXE' --build 'c:\..........\tests\spi_flash_at45\build'
The terminal process terminated with exit code: 1.

When I build it without the _ns It builds and I can flash the device, but then I get the following error:
[00:00:00.384,643] <err> spi_flash_at45: Wrong JEDEC ID: 00 00 00, expected: 1F 27 01
*** Booting Zephyr OS build v2.6.99-ncs1 ***
DataFlash sample on nrf9160dk_nrf9160
Device DATAFLASH_0 not found!

RE: nRF9160DK configure external flash to work with nrf9160

Sigurd — Mon, 20 Dec 2021 12:28:15 GMT

[quote user="Svetlio141"]

This one compiles and I flash it, but after that I still don't find the flash on the nrf9160.

[/quote]

Try powering the board off/on after flashing the nRF52840 with this firmware.

Please also make sure that you specify the board revision when building

http://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.7.0/nrf/ug_nrf9160.html#board-revisions

-DBOARD=nrf9160dk_nrf9160_ns@1.0.0

-DBOARD=nrf9160dk_nrf52840@1.0.0

RE: nRF9160DK configure external flash to work with nrf9160

Svetlio141 — Wed, 15 Dec 2021 14:36:27 GMT

Hello,

I saw this but when I try to build it I get the following error regarding the overlay file:

Error: c:\Users\SvetoslavAnev\tests\nrf52\build\nrf9160dk_nrf52840.dts.pre.tmp:534.17-18 syntax error
FATAL ERROR: Unable to parse input tree
CMake Error at C:\Users\SvetoslavAnev\ncs\v1.7.0\zephyr\cmake\dts.cmake:219 (message):
command failed with return code: 1
Call Stack (most recent call first):

this is the overlay file I write as given by the example:

&external_flash_pins_routing {
status = "okay";
};

I've also tried with this one that I found:

/ {
board-control {
external_flash_pins_routing: switch-ext-mem-ctrl {
compatible = "nordic,nrf9160dk-optional-routing";
control-gpios = <&gpio0 19 GPIO_ACTIVE_HIGH>;
status = "okay";
};
};
};

This one compiles and I flash it, but after that I still don't find the flash on the nrf9160.

And also do I need to connect something physically for the connection with the 64MB memory on the board?

RE: nRF9160DK configure external flash to work with nrf9160

Hakon — Tue, 14 Dec 2021 15:27:00 GMT

Hello,

[quote user=""]The problem is I don't know what configurations I need to put to this file in order to make the needed configurations.[/quote]

This should be explained in detail in this post. You need to change the board control configurations to the nrf52840 on the DK. You can use the hello_world sample for that as explained in the post, and create an overlay as mentioned. If anything is unclear, just ask.