Update Corstone-300/320 board layers

.github/workflows/Test_Alif_E7.yml

@@ -82,7 +82,7 @@ jobs:
       - name: Run on simulator
         working-directory: ${{env.DIR}}
         run: |
-          FVP_Corstone_SSE-300_Ethos-U55 -f ./Board/Corstone-300/fvp_config.txt -a ./out/AlgorithmTest/SSE-300-U55/Debug/AlgorithmTest.hex --simlimit 120 || true
+          FVP_Corstone_SSE-300_Ethos-U55 -f ./Board/Corstone-300/fvp_config_u55.txt -a ./out/AlgorithmTest/SSE-300-U55/Debug/AlgorithmTest.hex --simlimit 120 || true
 
       - name: Print sdsio.log file
         working-directory: ${{env.DIR}}/algorithm/SDS Recordings

.github/workflows/Test_ST_KeywordSpotting.yml

@@ -82,7 +82,7 @@ jobs:
       - name: Run on simulator
         working-directory: ${{env.DIR}}
         run: |
-          FVP_Corstone_SSE-300_Ethos-U55 -f ./Board/Corstone-300/fvp_config.txt -a ./out/AlgorithmTest/SSE-300-U55/Debug/AlgorithmTest.hex --simlimit 120 || true
+          FVP_Corstone_SSE-300_Ethos-U55 -f ./Board/Corstone-300/fvp_config_u55.txt -a ./out/AlgorithmTest/SSE-300-U55/Debug/AlgorithmTest.hex --simlimit 120 || true
 
       - name: Print sdsio.log file
         working-directory: ${{env.DIR}}/algorithm/SDS Recordings

.github/workflows/Test_ST_MotionRecognition.yml

@@ -82,7 +82,7 @@ jobs:
       - name: Run on simulator
         working-directory: ${{env.DIR}}
         run: |
-          FVP_Corstone_SSE-300_Ethos-U55 -f ./Board/Corstone-300/fvp_config.txt -a ./out/AlgorithmTest/SSE-300-U55/Debug/AlgorithmTest.hex --simlimit 120 || true
+          FVP_Corstone_SSE-300_Ethos-U55 -f ./Board/Corstone-300/fvp_config_u55.txt -a ./out/AlgorithmTest/SSE-300-U55/Debug/AlgorithmTest.hex --simlimit 120 || true
 
       - name: Print sdsio.log file
         working-directory: ${{env.DIR}}/algorithm/SDS Recordings

Alif/AppKit-E7_USB/Board/Corstone-300/Board-U55.clayer.yml

@@ -1,6 +1,6 @@
 layer:
   type: Board
-  description: Board setup for AI/ML with Ethos U55
+  description: Base configuration of SSE-300 FVP with Ethos U55
   for-board: ARM::V2M-MPS3-SSE-300-FVP
   for-device: ARM::SSE-300-MPS3
 
@@ -12,18 +12,18 @@ layer:
         - STDIN
         - STDOUT
         - STDERR
-        - Heap: 786432
+        - Heap: 98304
+      consumes:
+        - CMSIS-RTOS2
 
   define:
     - CMSIS_target_header: \"Corstone-300.h\"
-    - ETHOSU55
     - CORSTONE300_FVP
-    - ARM_MODEL_USE_PMU_COUNTERS
 
   packs:
     - pack: ARM::CMSIS
-    - pack: ARM::CMSIS-Compiler@^2.1.0
-    - pack: ARM::ethos-u-core-driver@^1.25.2
+    - pack: ARM::CMSIS-Compiler@^2.3.0
+    - pack: ARM::CMSIS-Ethos-U@^1.0.0
     - pack: ARM::V2M_MPS3_SSE_300_BSP@1.5.0
 
   components:
@@ -33,9 +33,9 @@ layer:
     - component: CMSIS Driver:VIO
 
     - component: CMSIS-Compiler:CORE
-    - component: CMSIS-Compiler:STDERR:Custom
-    - component: CMSIS-Compiler:STDIN:Custom
-    - component: CMSIS-Compiler:STDOUT:Custom
+    - component: CMSIS-Compiler:STDERR:UART&CMSIS
+    - component: CMSIS-Compiler:STDIN:UART&CMSIS
+    - component: CMSIS-Compiler:STDOUT:UART&CMSIS
 
     - component: Device:Definition
     - component: Device:Startup&C Startup
@@ -46,14 +46,17 @@ layer:
     - component: Device:Native Driver:UART
 
     - component: Machine Learning:NPU Support:Ethos-U Driver&Generic U55
+      define:
+        - ETHOSU_MACS: 256
 
   groups:
     - group: Board
       files:
-        - file: ./main.c
-        - file: ./main.h
-        - file: ./ethos_setup.c
-        - file: ./retarget_stdio.c
+        - file: main.c
+        - file: main.h
+        - file: ethos_setup.c
+        - file: ethosu_os_rtos2.c
+        - file: ethosu_dcache.c
 
   linker:
-    - regions: ./regions_SSE-300.h
+    - regions: RTE/Device/SSE-300-MPS3/regions_SSE-300.h

Alif/AppKit-E7_USB/Board/Corstone-300/Board-U65.clayer.yml

@@ -1,6 +1,6 @@
 layer:
   type: Board
-  description: Board setup for AI/ML with Ethos U65
+  description: Base configuration of SSE-300 FVP with Ethos U65
   for-board: ARM::V2M-MPS3-SSE-300-FVP
   for-device: ARM::SSE-300-MPS3
 
@@ -12,18 +12,18 @@ layer:
         - STDIN
         - STDOUT
         - STDERR
-        - Heap: 786432
+        - Heap: 98304
+      consumes:
+        - CMSIS-RTOS2
 
   define:
     - CMSIS_target_header: \"Corstone-300.h\"
-    - ETHOSU65
     - CORSTONE300_FVP
-    - ARM_MODEL_USE_PMU_COUNTERS
 
   packs:
     - pack: ARM::CMSIS
-    - pack: ARM::CMSIS-Compiler@^2.1.0
-    - pack: ARM::ethos-u-core-driver@^1.25.2
+    - pack: ARM::CMSIS-Compiler@^2.3.0
+    - pack: ARM::CMSIS-Ethos-U@^1.0.0
     - pack: ARM::V2M_MPS3_SSE_300_BSP@1.5.0
 
   components:
@@ -33,9 +33,9 @@ layer:
     - component: CMSIS Driver:VIO
 
     - component: CMSIS-Compiler:CORE
-    - component: CMSIS-Compiler:STDERR:Custom
-    - component: CMSIS-Compiler:STDIN:Custom
-    - component: CMSIS-Compiler:STDOUT:Custom
+    - component: CMSIS-Compiler:STDERR:UART&CMSIS
+    - component: CMSIS-Compiler:STDIN:UART&CMSIS
+    - component: CMSIS-Compiler:STDOUT:UART&CMSIS
 
     - component: Device:Definition
     - component: Device:Startup&C Startup
@@ -46,14 +46,17 @@ layer:
     - component: Device:Native Driver:UART
 
     - component: Machine Learning:NPU Support:Ethos-U Driver&Generic U65
+      define:
+        - ETHOSU_MACS: 256
 
   groups:
     - group: Board
       files:
-        - file: ./main.c
-        - file: ./main.h
-        - file: ./ethos_setup.c
-        - file: ./retarget_stdio.c
+        - file: main.c
+        - file: main.h
+        - file: ethos_setup.c
+        - file: ethosu_os_rtos2.c
+        - file: ethosu_dcache.c
 
   linker:
-    - regions: ./regions_SSE-300.h
+    - regions: RTE/Device/SSE-300-MPS3/regions_SSE-300.h

Alif/AppKit-E7_USB/Board/Corstone-300/Board.clayer.yml

@@ -1,6 +1,6 @@
 layer:
   type: Board
-  description: Board setup for AI/ML
+  description: Base configuration of SSE-300 FVP
   for-board: ARM::V2M-MPS3-SSE-300-FVP
   for-device: ARM::SSE-300-MPS3
 
@@ -12,16 +12,15 @@ layer:
         - STDIN
         - STDOUT
         - STDERR
-        - Heap: 786432
+        - Heap: 98304
 
   define:
     - CMSIS_target_header: \"Corstone-300.h\"
     - CORSTONE300_FVP
-    - ARM_MODEL_USE_PMU_COUNTERS
 
   packs:
     - pack: ARM::CMSIS
-    - pack: ARM::CMSIS-Compiler@^2.1.0
+    - pack: ARM::CMSIS-Compiler@^2.3.0
     - pack: ARM::V2M_MPS3_SSE_300_BSP@1.5.0
 
   components:
@@ -31,9 +30,9 @@ layer:
     - component: CMSIS Driver:VIO
 
     - component: CMSIS-Compiler:CORE
-    - component: CMSIS-Compiler:STDERR:Custom
-    - component: CMSIS-Compiler:STDIN:Custom
-    - component: CMSIS-Compiler:STDOUT:Custom
+    - component: CMSIS-Compiler:STDERR:UART&CMSIS
+    - component: CMSIS-Compiler:STDIN:UART&CMSIS
+    - component: CMSIS-Compiler:STDOUT:UART&CMSIS
 
     - component: Device:Definition
     - component: Device:Startup&C Startup
@@ -46,9 +45,8 @@ layer:
   groups:
     - group: Board
       files:
-        - file: ./main.c
-        - file: ./main.h
-        - file: ./retarget_stdio.c
+        - file: main.c
+        - file: main.h
 
   linker:
-    - regions: ./regions_SSE-300.h
+    - regions: RTE/Device/SSE-300-MPS3/regions_SSE-300.h

Alif/AppKit-E7_USB/Board/Corstone-300/Corstone-300.h

@@ -1,6 +1,6 @@
-/*---------------------------------------------------------------------------
- * Copyright (c) 2025 Arm Limited (or its affiliates).
- * All rights reserved.
+/*
+ * Copyright 2025-2026 Arm Limited and/or its affiliates.
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Licensed under the Apache License, Version 2.0 (the License); you may
@@ -14,7 +14,7 @@
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
- *---------------------------------------------------------------------------*/
+ */
 
 #ifndef CORSTONE_300_H_
 #define CORSTONE_300_H_

Alif/AppKit-E7_USB/Board/Corstone-300/README.md

@@ -1,20 +1,30 @@
 # Board: Arm V2M-MPS3-SSE-300-FVP
 
-## Board Layer for Corstone-300 FVP
+## Board Layers for Corstone-300 FVP
 
-This layer works for:
+These layers work for:
 
 ```yml
   board: ARM::V2M-MPS3-SSE-300-FVP
   device: ARM::SSE-300-MPS3
 ```
 
+Select one layer matching the application's NPU requirements:
+
+| Layer file           | Use in Application
+|:---------------------|:------------------------
+| Board.clayer.yml     | Without Ethos-U support
+| Board-U55.clayer.yml | With Ethos-U55 support
+| Board-U65.clayer.yml | With Ethos-U65 support
+
+Use the corresponding FVP configuration file listed below.
+
 ### System Configuration
 
 | System Component        | Setting
 |:------------------------|:----------------------------------
-| Heap                    | 768 kB (configured in linker file)
-| Stack (MSP)             |  32 kB (configured in linker file)
+| Heap                    |  96 kB (configured in regions header)
+| Stack (MSP)             |  4 kB (configured in regions header)
 
 ### STDIO mapping
 
@@ -41,4 +51,6 @@ interface for SDS data files using a [Virtual Streaming Interface](https://arm-s
 
 | File               | Description
 |:-------------------|:-------------
-| fvp_config.txt     | Corstone-300 FVP without Ethos-U or with Ethos-U55/U65
+| fvp_config.txt     | Corstone-300 FVP without Ethos-U
+| fvp_config_u55.txt | Corstone-300 FVP with an Ethos-U55-256
+| fvp_config_u65.txt | Corstone-300 FVP with an Ethos-U65-256

Alif/AppKit-E7_USB/Board/Corstone-300/RTE/CMSIS-Compiler/stderr_cmsis_uart_config.h

@@ -0,0 +1,59 @@
+/*---------------------------------------------------------------------------
+ * Copyright (c) 2026 Arm Limited (or its affiliates).
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * --------------------------------------------------------------------------
+ *
+ * Purpose:   Configure STDERR to CMSIS-Driver USART retarget implementation
+ * Revision:  V1.0.0
+ *
+ * --------------------------------------------------------------------------*/
+
+#ifndef STDERR_CMSIS_UART_CONFIG_H_
+#define STDERR_CMSIS_UART_CONFIG_H_
+
+//-------- <<< Use Configuration Wizard in Context Menu >>> --------------------
+//------ With VS Code: Open Preview for Configuration Wizard -------------------
+
+// <o>UART STDERR Buffer Size
+// <i> UART STDERR buffer is used to store STDERR data before sending it via UART
+// <i> Default: 0 (unbuffered)
+#ifndef STDERR_UART_BUFFER_SIZE
+#define STDERR_UART_BUFFER_SIZE         0
+#endif
+
+// <s>UART STDERR Buffer Section Name
+// <i> Specify the memory section name for UART STDERR buffer
+// <i> Default: .stderr_uart_buf
+#ifndef STDERR_UART_BUFFER_SECTION
+#define STDERR_UART_BUFFER_SECTION      ".stderr_uart_buf"
+#endif
+
+// <o>UART STDERR Buffer Alignment
+// <i> Define the STDERR buffer alignment in bytes
+// <i> Default: 32
+#ifndef STDERR_UART_BUFFER_ALIGNMENT
+#define STDERR_UART_BUFFER_ALIGNMENT    32
+#endif
+
+// <q>Convert LF to CRLF
+// <i> If enabled, LF characters are preceded by CR characters on output
+// <i> Default: 0
+#ifndef STDERR_CR_LF
+#define STDERR_CR_LF                    1
+#endif
+
+#endif /* STDERR_CMSIS_UART_CONFIG_H_ */

Alif/AppKit-E7_USB/Board/Corstone-300/RTE/CMSIS-Compiler/stderr_cmsis_uart_config.h.base@1.0.0

@@ -0,0 +1,59 @@
+/*---------------------------------------------------------------------------
+ * Copyright (c) 2026 Arm Limited (or its affiliates).
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * --------------------------------------------------------------------------
+ *
+ * Purpose:   Configure STDERR to CMSIS-Driver USART retarget implementation
+ * Revision:  V1.0.0
+ *
+ * --------------------------------------------------------------------------*/
+
+#ifndef STDERR_CMSIS_UART_CONFIG_H_
+#define STDERR_CMSIS_UART_CONFIG_H_
+
+//-------- <<< Use Configuration Wizard in Context Menu >>> --------------------
+//------ With VS Code: Open Preview for Configuration Wizard -------------------
+
+// <o>UART STDERR Buffer Size
+// <i> UART STDERR buffer is used to store STDERR data before sending it via UART
+// <i> Default: 0 (unbuffered)
+#ifndef STDERR_UART_BUFFER_SIZE
+#define STDERR_UART_BUFFER_SIZE         0
+#endif
+
+// <s>UART STDERR Buffer Section Name
+// <i> Specify the memory section name for UART STDERR buffer
+// <i> Default: .stderr_uart_buf
+#ifndef STDERR_UART_BUFFER_SECTION
+#define STDERR_UART_BUFFER_SECTION      ".stderr_uart_buf"
+#endif
+
+// <o>UART STDERR Buffer Alignment
+// <i> Define the STDERR buffer alignment in bytes
+// <i> Default: 32
+#ifndef STDERR_UART_BUFFER_ALIGNMENT
+#define STDERR_UART_BUFFER_ALIGNMENT    32
+#endif
+
+// <q>Convert LF to CRLF
+// <i> If enabled, LF characters are preceded by CR characters on output
+// <i> Default: 0
+#ifndef STDERR_CR_LF
+#define STDERR_CR_LF                    0
+#endif
+
+#endif /* STDERR_CMSIS_UART_CONFIG_H_ */