boards: stm32n6: Add serial boot variant #84869

erwango · 2025-01-29T13:50:12Z

Adding a serial boot variant allowing to flash the board using the serial boot feature from the boot ROM
Add free form options for --start and --download to stm32cubeprogrammer runner
Add a STM32CubeProgrammer based script allowing to perform complete board power off/on

Note: ~~documentation update is still missing for ucleo_n657x0_q boards as I'd like to get the DK board doc update approved first before duplicating everything.~~ Both boards doc updated

erwango · 2025-01-29T13:53:55Z

Back to draft as I miss some runner updates (helpers and tests)

Implement possibility to specify options for --start and --download arguments. These options are implemented as lists to better fit STM32CubeProgrammer programming model. This options are required to enable the programming of STM32N6 in USB-DFU mode, which requires "-d my.bin 0x1 -s noack" arguments list. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

Flashing in BOOT-SERIAL mode with stm32cubeprogrammer doesn't support using serial number. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

When flashing STM32N6 in USB-DFU mode, as required when running test automation using twister, it is first required to power-off/power-on the board to set board ready for USB-DFU (thanks to specific BootROM configuration). Provide a script that performs this operation using STM32CubeProgrammer. This scipt could be provided in twister map.yaml file on 'pre_script' property of board entry. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

This option should be used to load and run binary using "serial boot" configuration for boot ROM. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

On STM32N6 based series, there is no flash available and tests are performed using load and run in RAM. From twister point of view, we should consider a flash is available with the same size as RAM. (We may tune these values later as the RAM will actually be shared between code and variables). Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

Introduce a variant to allow loading and running firmware using BootROM serial boot configuration. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

kartben · 2025-01-31T13:41:14Z

boards/st/nucleo_n657x0_q/doc/index.rst

@@ -108,70 +114,134 @@ USART1. Default settings are 115200 8N1.
 Programming and Debugging
 *************************

-NUCLEO_N657X0_Q board includes an ST-LINK/V3 embedded debug tool interface.
-This probe allows to flash the board using various tools.
+STM32N6570_DK board includes an ST-LINK/V3 embedded debug tool interface.


ok so what's the name of that board then? :)
Overview says "Nucleo-144", the board's full_name is Nucleo N657x0-Q, and here you have something different? (and then ST website seems to have NUCLEO-N657X0-Q with capital X btw :) )

Copy pasta. ~~Reverting back to NUCLEO_N657X0_Q~~ Updating to NUCLEO-N657X0-Q

good :) please fix full_name too to use capital X, if you have a chance

kartben · 2025-01-31T13:42:57Z

boards/st/nucleo_n657x0_q/twister.yaml

+    toolchain:
+      - zephyr
+      - gnuarmemb
+      - xtools


Suggested change

- xtools

kartben · 2025-01-31T13:43:52Z

boards/st/stm32n6570_dk/twister.yaml

+    toolchain:
+      - zephyr
+      - gnuarmemb
+      - xtools


Suggested change

- xtools

erwango · 2025-01-31T14:45:51Z

@kartben PTAL

kartben · 2025-02-03T14:44:16Z

boards/st/nucleo_n657x0_q/doc/index.rst

+            * BOOT1: 0
+
+         Build and load an application using ``nucleo_n657x0_q/stm32n657xx/sb`` target (you
+         can also use the shortenned form: ``nucleo_n657x0_q//sb``)


Suggested change

can also use the shortenned form: ``nucleo_n657x0_q//sb``)

can also use the shortened form: ``nucleo_n657x0_q//sb``)

Fixed, thanks

kartben · 2025-02-03T14:46:47Z

boards/st/nucleo_n657x0_q/doc/index.rst


 .. zephyr-app-commands::
   :zephyr-app: samples/hello_world
   :board: nucleo_n657x0_q
   :goals: build flash

+
+Run a serial host program to connect with your Disco board:


Suggested change

Run a serial host program to connect with your Disco board:

Run a serial host program to connect to you board:

kartben · 2025-02-03T14:50:23Z

boards/st/nucleo_n657x0_q/twister.yaml

+  - gpio
+  - uart
+vendor: st
+variants:


non-blocking: not really familiar with this way of describing the variants but wondering if having separate yaml files isn't better for consistency with the 99.9% of the other boards in tree

I found this handy to avoid duplicating information. It seems to have been introduced for this purpose (See #77250)
And also I didn't manage to exclude one variant from twister using 2 separate yaml files.

Update stm32n6 based boards documentation to reflect addition of new sb variant and how it could be used for twister tests automation. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

Generate a proper Cmake warning when signing tool isn't available. This also allows not to fail in Github CI. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

Until MPU support is enabled, disable DCACHE support for this series of test. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

Fix yaml full_name to match ST official reference. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

Remove xtool support Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

JarmouniA · 2025-02-03T21:49:11Z

boards/st/common/scripts/board_power_reset.sh

@erwango Sorry for the late review, shouldn't this script be in Python for the sake of portability?

zephyrbot added platform: STM32 ST Micro STM32 area: Twister Twister area: West West utility labels Jan 29, 2025

zephyrbot requested review from djiatsaf-st, FRASTM, gautierg-st, gchwier, GeorgeCGV, golowanow, hakehuang, KamilxPaszkiet, LukaszMrugala, marwaiehm-st, mathieuchopstm, mbolivar, nashif, pdgendt and PerMac January 29, 2025 13:51

zephyrbot assigned nashif Jan 29, 2025

erwango marked this pull request as draft January 29, 2025 13:51

nashif assigned erwango and unassigned nashif Jan 29, 2025

erwango added 2 commits January 29, 2025 15:41

scripts: twister: Board id not needed for stm32cubeprog in BOOT-SERIAL

9c9baf3

Flashing in BOOT-SERIAL mode with stm32cubeprogrammer doesn't support using serial number. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

erwango force-pushed the dev_n6_usb_dfu branch from 14a35ad to 316aa30 Compare January 29, 2025 14:41

erwango marked this pull request as ready for review January 29, 2025 14:42

erwango added 3 commits January 29, 2025 15:45

soc: stm32n6: Add Boot serial option

25fa964

This option should be used to load and run binary using "serial boot" configuration for boot ROM. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

boards: nucleo_n657x0_q: Introduce variant for serial boot

3d7b50b

Introduce a variant to allow loading and running firmware using BootROM serial boot configuration. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

erwango dismissed stale reviews from marwaiehm-st and gautierg-st via 56b3cff January 31, 2025 13:19

erwango force-pushed the dev_n6_usb_dfu branch from b51ec0b to 56b3cff Compare January 31, 2025 13:19

gautierg-st previously approved these changes Jan 31, 2025

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kartben requested changes Jan 31, 2025

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erwango dismissed gautierg-st’s stale review via d3ac91a January 31, 2025 14:35

erwango force-pushed the dev_n6_usb_dfu branch from 56b3cff to d3ac91a Compare January 31, 2025 14:35

erwango requested review from marwaiehm-st and gautierg-st January 31, 2025 14:45

erwango assigned kartben and unassigned erwango Jan 31, 2025

gautierg-st previously approved these changes Jan 31, 2025

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erwango requested a review from kartben January 31, 2025 16:27

marwaiehm-st previously approved these changes Jan 31, 2025

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kartben requested changes Feb 3, 2025

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erwango added 5 commits February 3, 2025 16:27

boards: stm32n6: Document sb variant and testing using twister

8373191

Update stm32n6 based boards documentation to reflect addition of new sb variant and how it could be used for twister tests automation. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

soc: stm32n6: Generate a warning when signing tool is not available

2570729

Generate a proper Cmake warning when signing tool isn't available. This also allows not to fail in Github CI. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

tests: uart_async_api: Disable DCACHE on stm32n6 targets

53e9f05

Until MPU support is enabled, disable DCACHE support for this series of test. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

boards: st: nucleo_n657x0_q: Fix full_name.

806a14e

Fix yaml full_name to match ST official reference. Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

boards: stm32n6: Remove xtool support mention

f38a251

Remove xtool support Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

erwango dismissed stale reviews from marwaiehm-st and gautierg-st via f38a251 February 3, 2025 15:27

erwango force-pushed the dev_n6_usb_dfu branch from d3ac91a to f38a251 Compare February 3, 2025 15:27

kartben approved these changes Feb 3, 2025

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gautierg-st approved these changes Feb 3, 2025

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marwaiehm-st approved these changes Feb 3, 2025

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kartben merged commit b5c5ba8 into zephyrproject-rtos:main Feb 3, 2025
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boards: stm32n6: Add serial boot variant #84869

boards: stm32n6: Add serial boot variant #84869

erwango commented Jan 29, 2025 •

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JarmouniA Feb 3, 2025

	can also use the shortenned form: ``nucleo_n657x0_q//sb``)
	can also use the shortened form: ``nucleo_n657x0_q//sb``)

	Run a serial host program to connect with your Disco board:
	Run a serial host program to connect to you board:

boards: stm32n6: Add serial boot variant #84869

boards: stm32n6: Add serial boot variant #84869

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erwango commented Jan 29, 2025 •

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