nrf5340 DFU with external flash

RE: nrf5340 DFU with external flash

Vidar Berg — Tue, 02 Apr 2024 12:02:37 GMT

Hi Sylvain,

If you are using QSPI for the nRF7002, then you need to use SPI for the external flash. The SPIM interfaces do not support XiP. The example I referenced earlier is using the SPI NOR driver with BLE FOTA enabled.

Best regards,

Vidar

RE: nrf5340 DFU with external flash

sguitton01 — Tue, 02 Apr 2024 07:51:17 GMT

I am using QSPI for the nrf700x

Actually the goal here is to be able to make DFU through wi-fi and BLE on the same device. This is why I started from the aws_iot example which include FOTA and I am trying to add BLE DFU on top of that. Though for now I am stuck, any idea on how to do it?

Thank you,

Sylvain

RE: nrf5340 DFU with external flash

Vidar Berg — Tue, 02 Apr 2024 07:26:50 GMT

Hi Sylvain,

Are you using the QSPI or SPI to communicate with the 7002?

RE: nrf5340 DFU with external flash

sguitton01 — Tue, 02 Apr 2024 07:20:04 GMT

Hi Vidar,

Sorry for the late reply.
So I see that the MCUmgr module absolutely needs the QSPI (do you know why?).
Do you have ant example or another way to make a DFU through BLE without the MCUmgr module using DFUTarget instead?

Thank you,

Sylvain

RE: nrf5340 DFU with external flash

Vidar Berg — Mon, 26 Feb 2024 16:30:00 GMT

Yes. I'm not saying you can't use the nRF7002 and external Flash simultaneously. I'm saying you should not use the same QSPI/SPI instance for both.

RE: nrf5340 DFU with external flash

sguitton01 — Mon, 26 Feb 2024 16:25:31 GMT

Hi Vidar,

In the aws iot they are using the both nrf700x and external flash no?

RE: nrf5340 DFU with external flash

Vidar Berg — Mon, 26 Feb 2024 14:45:15 GMT

If you are using the QSPI to communicate with the nRF7002, you need to use the SPI to interface with the external flash.

RE: nrf5340 DFU with external flash

sguitton01 — Mon, 26 Feb 2024 13:47:55 GMT

No a way to use the external flash and the nrf700x simultaneously

RE: nrf5340 DFU with external flash

Vidar Berg — Mon, 26 Feb 2024 13:45:57 GMT

Hi Sylvain,

[quote userid="26916" url="~/f/nordic-q-a/108342/nrf5340-dfu-with-external-flash/470667"]As soon as I set CONFIG_SPI_NOR=n I get a RAM overflow.[/quote]

Did you mean to say that you get RAM overflow when you set CONFIG_SPI_NOR to 'y'?

RE: nrf5340 DFU with external flash

sguitton01 — Mon, 26 Feb 2024 13:44:36 GMT

Hi Vidar,

Is there some other driver option?

Sylvain

RE: nrf5340 DFU with external flash

Vidar Berg — Mon, 26 Feb 2024 11:14:11 GMT

Hi Sylvain,

What driver are you going to use if you are not going to use CONFIG_SPI_NOR? As mentioned, the QSPI is connected to the 7002 IC.

Vidar

RE: nrf5340 DFU with external flash

sguitton01 — Mon, 26 Feb 2024 10:23:32 GMT

Hi Vidar,

How can I use the mx25r64 without the SPI_NOR driver?
As soon as I set CONFIG_SPI_NOR=n I get a RAM overflow.

Sylvain

RE: nrf5340 DFU with external flash

Vidar Berg — Mon, 26 Feb 2024 10:09:18 GMT

Hi Sylvain,

The project included in my other post is demonstrating DFU over BLE, so it doesn't include Wifi. However, It shows how you can configure the application to support DFU and how to place the secondary mcuboot slot in external flash. So the remaining part is to enable DFU over the WIFI.

[quote userid="26916" url="~/f/nordic-q-a/108342/nrf5340-dfu-with-external-flash/470656"]So if i want to use the nrf700x + a flash, the nrf700x should use the QSPI and the Flash the classic SPI?[/quote]

At least on the DK since the nRF53 QSPI pins are routed to the nRF7002 on this board.

RE: nrf5340 DFU with external flash

sguitton01 — Mon, 26 Feb 2024 09:56:36 GMT

Hi Vidar,

I am able to build the project you sent though the nrf7002 chip is not used in the project is it?

So if i want to use the nrf700x + a flash, the nrf700x should use the QSPI and the Flash the classic SPI?

Sylvain

RE: nrf5340 DFU with external flash

Vidar Berg — Fri, 16 Feb 2024 13:34:13 GMT

Hello Sylvain,

Please try the sample I included in this post: Issues with Building MCUboot for nRF7002DK Using NCS V2.5.2 .

[quote user=""]C:/ncs/v2.5.0/zephyr/drivers/flash/nrf_qspi_nor.c:69:2: error: #error "No size specified. 'size' or 'size-in-bytes' must be set"
69 | #error "No size specified. 'size' or 'size-in-bytes' must be set"[/quote]

The QSPI nor driver should not be enabled as the QSPI is used to interface the nRF7002 chip.

Thanks,

Vidar