Qspi flash sample project error

Hi,

For the example to work, you must define a $(board).overlay and $(board).conf file in the boards catalog of the example.

In your case it would be boards/bl654_dvk.conf and boards/bl654_dvk.overlay.

You should follow the setup similar to how it is done for the nRF52840-DK, with QSPI being enabled:

https://github.com/nrfconnect/sdk-zephyr/blob/main/samples/drivers/spi_flash/boards/nrf52840dk_nrf52840.conf#L8

And the MX25R64 itself being defined in the board:

https://github.com/nrfconnect/sdk-zephyr/blob/main/boards/arm/nrf52840dk_nrf52840/nrf52840dk_nrf52840.dts#L209-L235

Kind regards,

Håkon

Hi,

Those are the steps I took to receive that message. Not sure how to proceed from there. I have also closed all the bridges required for the qspi flash.

Thanks,

Jacob

Hi Jacob,

jspiller said:

Those are the steps I took to receive that message. Not sure how to proceed from there. I have also closed all the bridges required for the qspi flash.

Did you try this on a nRF52840-DK first to see if it worked there?

I see now that the bl654_dvk board defines this as a spi-nor device in the overlay, not a qspi device:

https://github.com/nrfconnect/sdk-zephyr/blob/main/boards/arm/bl654_dvk/bl654_dvk.dts#L135-L152

Try adding this to the top of your .overlay file:

/delete-node/ &mx25r6435f;

then setup your &qspi structure with the "MX25R64" labeled device in it.

If it still does not work, could you share your overlay and config files?

Kind regards,

Håkon

Thanks for the response,

I just tried putting that line in, but it throws "parse error: undefined node label 'mx25r6435f'" when I try to build. I tired adding the "@0" as well. Using "/delete-node/ &spi1;" is recognized but does not seem to solve the issue. In the device tree the node does show up however, I have tried manually disabling spi1 as well, but no luck. Here is my .conf and .overlay files.

#
# Copyright (c) 2019 Peter Bigot Consulting, LLC
# Copyright (c) 2019 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: Apache-2.0
#

CONFIG_NORDIC_QSPI_NOR=y
CONFIG_NORDIC_QSPI_NOR_FLASH_LAYOUT_PAGE_SIZE=4096
CONFIG_NORDIC_QSPI_NOR_STACK_WRITE_BUFFER_SIZE=16

/delete-node/ &mx25r6435f;

&qspi {
	status = "okay";
	sck-pin = <19>;
	io-pins = <20>, <21>, <22>, <23>;
	csn-pins = <17>;
	mx25r64: mx25r6435f@0 {
		compatible = "nordic,qspi-nor";
		reg = <0>;
		/* MX25R64 supports only pp and pp4io */
		writeoc = "pp4io";
		/* MX25R64 supports all readoc options */
		readoc = "read4io";
		sck-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>;
	};
};

/*
 * UART1 as logger
 */
/ {
	chosen {
		zephyr,console = &uart1;
		zephyr,shell-uart = &uart1;
		zephyr,uart-mcumgr = &uart0;
		zephyr,bt-mon-uart = &uart0;
		zephyr,bt-c2h-uart = &uart0;
	};
};

&uart1 {
	compatible = "nordic,nrf-uarte";
	current-speed = <115200>;
	status = "okay";
	tx-pin = <30>;
	rx-pin = <31>;
};

I have not tried this on a nRF52840dk, does that board have a spi flash on it?

Hi,

jspiller said:

I just tried putting that line in, but it throws "parse error: undefined node label 'mx25r6435f'"

Sorry for that, it seems that this peripheral/node isn't required to delete.

This is the overlay and conf file that I placed in the board folder for the bl654_dvk:

The pin-outs are edited to match the nRF52840-DK, as I do not have this module at-hand.

This ran as expected when flashed:

*** Booting Zephyr OS build v2.7.99-ncs1  ***

JEDEC SPI-NOR SPI flash testing
==========================

Test 1: Flash erase
Flash erase succeeded!

Test 2: Flash write
Attempting to write 4 bytes
Data read matches data written. Good!!

I just tested it on a nRF52840dk and it worked as you saw as well. It is something specific to the bl654 module then that is causing an issue. Any idea what that might be?

I just tested it on a nRF52840dk and it worked as you saw as well. It is something specific to the bl654 module then that is causing an issue. Any idea what that might be?

Hi,

Have you connected an external qspi flash or are you using the internal one on the bl654-dvk?

Have you checked that the on-board spi flash has routed all the qspi pins?

Kind regards,

Håkon

There is a optional external qspi that comes on the dev kit. I followed the instructions shown here:

And configured the qspi as such:

&qspi {
	status = "okay";
	sck-pin = <14>;
	io-pins = <9>, <13>, <12>, <11>;
	csn-pins = <16>;
	mx25r64: mx25r6435f@0 {
		compatible = "nordic,qspi-nor";
		reg = <0>;
		/* MX25R64 supports only pp and pp4io */
		writeoc = "pp4io";
		/* MX25R64 supports all readoc options */
		readoc = "read4io";
		sck-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>;
	};
};

Does this seem correct?

Hi,

This is the physical GPIO mapping on the nRF52840-DK:

Which corresponds to this in DTS:

&qspi {
	status = "okay";
	sck-pin = <19>;
	io-pins = <20>, <21>, <22>, <23>;
	csn-pins = <17>;
	...
};

Are you certain that your DTS setup is correct as per the bl654 schematic?

sck-pin should be 19, csn should be 17, and io-pins should be 20-23, atleast how I read their schematic.

Kind regards,

Håkon

From the datasheet here https://www.lairdconnect.com/documentation/datasheet-bl654 page 12 has the pinout of the bl654 board with their equivalents on the nRF52840. I believe they are equivalent.

No, you're setting the physical pin number, while you should set the GPIO number.

Could you please try the suggestion that I previously posted?

hkn said:

Are you certain that your DTS setup is correct as per the bl654 schematic?

sck-pin should be 19, csn should be 17, and io-pins should be 20-23, atleast how I read their schematic.

Kind regards,

Håkon