sdk: pin everything to 0.16.8 until a CLI fix is available

Switching to 0.17.0 causes a number of issues with tool paths and
download file clashes. Pin everything to 0.16.8 which is the one
that everyone has installed until a way forward is available.

Signed-off-by: Luca Burelli <l.burelli@arduino.cc>

Author: pillo79

README.md

@@ -172,7 +172,7 @@ download all packages required for a Zephyr build in addition to the toolchains
 in the Zephyr SDK.
 
 > [!NOTE]
-> This core is validated with version v0.17.0 of the SDK. Compatibility with later versions has not been tested yet.
+> This core is validated with version v0.16.8 of the SDK. Compatibility with later versions has not been tested yet.
 
 ## 🛠️ Regenerate the compiled core files
 

boards.txt

@@ -6,7 +6,7 @@ menu.link_mode=Link mode
 giga.name=Arduino Giga R1
 giga.build.core=arduino
 giga.build.crossprefix=arm-zephyr-eabi-
-giga.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.17.0.path}/bin/
+giga.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.16.8.path}/bin/
 
 giga.menu.debug.false=Standard
 giga.menu.debug.true=Debug
@@ -70,7 +70,7 @@ giga.debug.svd_file={runtime.platform.path}/svd/STM32H747_CM7.svd
 nano33ble.name=Arduino Nano 33 BLE
 nano33ble.build.core=arduino
 nano33ble.build.crossprefix=arm-zephyr-eabi-
-nano33ble.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.17.0.path}/bin/
+nano33ble.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.16.8.path}/bin/
 
 nano33ble.menu.debug.false=Standard
 nano33ble.menu.debug.true=Debug
@@ -132,7 +132,7 @@ nano33ble.debug.cortex-debug.custom.request=attach
 ek_ra8d1.name=EK_RA8D1
 ek_ra8d1.build.core=arduino
 ek_ra8d1.build.crossprefix=arm-zephyr-eabi-
-ek_ra8d1.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.17.0.path}/bin/
+ek_ra8d1.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.16.8.path}/bin/
 
 ek_ra8d1.menu.debug.false=Standard
 ek_ra8d1.menu.debug.true=Debug
@@ -188,7 +188,7 @@ ek_ra8d1.bootloader.target=R7FA8D1AH
 frdm_mcxn947.name=MCXN947
 frdm_mcxn947.build.core=arduino
 frdm_mcxn947.build.crossprefix=arm-zephyr-eabi-
-frdm_mcxn947.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.17.0.path}/bin/
+frdm_mcxn947.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.16.8.path}/bin/
 
 frdm_mcxn947.menu.debug.false=Standard
 frdm_mcxn947.menu.debug.true=Debug
@@ -239,7 +239,7 @@ frdm_mcxn947.bootloader.target=mcxn947vdf
 portentah7.name=Arduino Portenta H7
 portentah7.build.core=arduino
 portentah7.build.crossprefix=arm-zephyr-eabi-
-portentah7.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.17.0.path}/bin/
+portentah7.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.16.8.path}/bin/
 
 portentah7.menu.debug.false=Standard
 portentah7.menu.debug.true=Debug
@@ -303,7 +303,7 @@ portentah7.debug.svd_file={runtime.platform.path}/svd/STM32H747_CM7.svd
 frdm_rw612.name=RW612
 frdm_rw612.build.core=arduino
 frdm_rw612.build.crossprefix=arm-zephyr-eabi-
-frdm_rw612.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.17.0.path}/bin/
+frdm_rw612.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.16.8.path}/bin/
 
 frdm_rw612.menu.debug.false=Standard
 frdm_rw612.menu.debug.true=Debug
@@ -353,7 +353,7 @@ frdm_rw612.bootloader.target=rw612
 niclasense.name=Arduino Nicla Sense ME
 niclasense.build.core=arduino
 niclasense.build.crossprefix=arm-zephyr-eabi-
-niclasense.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.17.0.path}/bin/
+niclasense.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.16.8.path}/bin/
 
 niclasense.menu.debug.false=Standard
 niclasense.menu.debug.true=Debug
@@ -421,7 +421,7 @@ niclasense.debug.cortex-debug.custom.request=attach
 portentac33.name=Portenta C33
 portentac33.build.core=arduino
 portentac33.build.crossprefix=arm-zephyr-eabi-
-portentac33.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.17.0.path}/bin/
+portentac33.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.16.8.path}/bin/
 
 portentac33.menu.debug.false=Standard
 portentac33.menu.debug.true=Debug
@@ -477,7 +477,7 @@ portentac33.bootloader.dfuse=-Q
 opta.name=Arduino Opta
 opta.build.core=arduino
 opta.build.crossprefix=arm-zephyr-eabi-
-opta.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.17.0.path}/bin/
+opta.build.compiler_path={runtime.tools.arm-zephyr-eabi-0.16.8.path}/bin/
 
 opta.menu.debug.false=Standard
 opta.menu.debug.true=Debug

extra/bootstrap.sh

@@ -20,5 +20,5 @@ west config manifest.project-filter -- "$HAL_FILTER"
 west update "$@"
 west zephyr-export
 pip install -r ../zephyr/scripts/requirements-base.txt
-west sdk install --version 0.17.0 -t arm-zephyr-eabi
+west sdk install --version 0.16.8 -t arm-zephyr-eabi
 west blobs fetch $NEEDED_HALS

extra/zephyr-core-template.json

@@ -44,7 +44,7 @@
             {
               "packager": "zephyr",
               "name": "arm-zephyr-eabi",
-              "version": "0.17.0"
+              "version": "0.16.8"
             },
             {
               "packager": "arduino",