Zephyr spi reading JEDEC ID of Winbond NOR flash failed

RE: Zephyr spi reading JEDEC ID of Winbond NOR flash failed

snowuyl — Wed, 28 Jun 2023 03:30:52 GMT

Thanks for your reply! I have replaced calling spi_nor_read_jedec_id() with flash_read_jedec_id(). It is okay to read JEDEC ID with flash_read_jedec_id().

RE: Zephyr spi reading JEDEC ID of Winbond NOR flash failed

Simonr — Tue, 27 Jun 2023 08:55:25 GMT

I can't reproduce this if you're running it on a custom board I'm afraid, As I don't have these external flashes available on my end. Did you try changing the dpd and rdpd values in your flash device to higher values?

You need to upload the full build log for us to see what the root cause of this build failure is.

Best regards,

Simon

RE: Zephyr spi reading JEDEC ID of Winbond NOR flash failed

snowuyl — Fri, 23 Jun 2023 11:28:17 GMT

Is there a reason you have defined two external flash devices?

Ans: I need to support two flash devices

The error seems to be trigged by the flashNorInit function in flash_nor.c. Is this a function you've added yourself, as it's not found in the default nRF Connect SDK v2.3.0?

Ans: I write flashNorInit() function by myself.

What exactly do you want me to do with the compressed files you've uploaded?

Ans: You can reproduce this issue with the following procedures.

1. Unzip custom_nrf52832.rar to boards/arm folder.

2. Unzip minimal_log_spi.zip to samples folder

3. cd minimal_log_spi

4. west build -b custom_nrf52832

RE: Zephyr spi reading JEDEC ID of Winbond NOR flash failed

Simonr — Thu, 22 Jun 2023 13:38:29 GMT

Is there a reason you have defined two external flash devices? It looks mostly okay, but the t-dpd values (the time required to complete the dpd and rdpd commands) look very short, as this value is stated in nanoseconds. By default these are set to 10000 (enter) and 35000 (exit).

Regarding the build error, you need to provide some more context here. The error seems to be trigged by the flashNorInit function in flash_nor.c. Is this a function you've added yourself, as it's not found in the default nRF Connect SDK v2.3.0? What exactly do you want me to do with the compressed files you've uploaded?

Best regards,

Simon

RE: Zephyr spi reading JEDEC ID of Winbond NOR flash failed

snowuyl — Wed, 21 Jun 2023 08:05:21 GMT

devzone.nordicsemi.com/.../custom_5F00_nrf52832.rar

RE: Zephyr spi reading JEDEC ID of Winbond NOR flash failed

snowuyl — Wed, 21 Jun 2023 08:05:07 GMT

devzone.nordicsemi.com/.../2313.minimal_5F00_log_5F00_spi.zip

RE: Zephyr spi reading JEDEC ID of Winbond NOR flash failed

snowuyl — Wed, 21 Jun 2023 08:03:45 GMT

minimal_log_spi>west build -b custom_nrf52832
-- west build: generating a build system

...

FAILED: zephyr/zephyr_pre0.elf zephyr/zephyr_pre0.map
cmd.exe /C "cd . && D:\ncs\toolchains\v2.3.0\opt\zephyr-sdk\arm-zephyr-eabi\bin\arm-zephyr-eabi-gcc.exe -gdwarf-4 @CMakeFiles\zephyr_pre0.rsp -o zephyr\zephyr_pre0.elf && cmd.exe /C "cd /D D:\ncs\v2.3.0\nrf\samples\minimal_log_spi\build\zephyr && D:\ncs\toolchains\v2.3.0\opt\bin\cmake.exe -E echo ""
d:/ncs/toolchains/v2.3.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.1.0/../../../../arm-zephyr-eabi/bin/ld.exe: app/libapp.a(flash_nor.c.obj): in function `flashNorInit':
D:\ncs\v2.3.0\nrf\samples\minimal_log_spi\build/../src/flash_nor.c:45: undefined reference to `spi_nor_read_jedec_id'
collect2.exe: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'D:\ncs\toolchains\v2.3.0\opt\bin\cmake.EXE' --build 'D:\ncs\v2.3.0\nrf\samples\minimal_log_spi\build'

RE: Zephyr spi reading JEDEC ID of Winbond NOR flash failed

snowuyl — Wed, 21 Jun 2023 08:01:11 GMT

&spi1 {
status = "okay";

cs-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&spi1_default>;
pinctrl-1 = <&spi1_sleep>;
pinctrl-names = "default", "sleep";

w25q32: w25q32jv@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <8000000>;
jedec-id = [ef 40 16];
size = <0x400000>;
has-dpd;
t-enter-dpd = <3500>;
t-exit-dpd = <3500>;
};

w25q256: w25q256jv@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <8000000>;
jedec-id = [ef 40 19];
size = <0x2000000>;
has-dpd;
t-enter-dpd = <3500>;
t-exit-dpd = <3500>;
};
};

RE: Zephyr spi reading JEDEC ID of Winbond NOR flash failed

snowuyl — Tue, 20 Jun 2023 10:20:17 GMT

Thanks for your reply!

RE: Zephyr spi reading JEDEC ID of Winbond NOR flash failed

Simonr — Tue, 20 Jun 2023 05:51:21 GMT

Have you set up your SPI to match the specs of the Winbond flash you're using in your project's overlay file? See the snippet below which is set up for the MX25R serial flash that's on the nRF52840 DK by default.

&spi2 {
	compatible = "nordic,nrf-spi";
	status = "okay";
	cs-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
	pinctrl-0 = <&spi2_default>;
	pinctrl-1 = <&spi2_sleep>;
	pinctrl-names = "default", "sleep";
	mx25r64: mx25r6435f@0  {
		compatible = "jedec,spi-nor";
		reg = <0>;
		spi-max-frequency = <8000000>;
		jedec-id = [c2 28 17];
		size = <67108864>;
		wp-gpios = <&gpio0 22 GPIO_ACTIVE_LOW>;
		hold-gpios = <&gpio0 23 GPIO_ACTIVE_LOW>;
	};
};

Also, what SPI instance, and what pins are you using for SPI on your board? You can try using spi_nor_read_jedec_id from the spi_nor.c driver to see what that function returns.

Best regards,
Simon