Update Corstone-320 board layer

RockPaperScissors/AppKit-E8_USB/Board/Corstone-320/Board-U85.clayer.yml

@@ -1,6 +1,6 @@
 layer:
   type: Board
-  description: Board setup for AI/ML with Ethos U85
+  description: Base configuration of SSE-320 FVP with Ethos U85
   for-board: ARM::SSE-320
   for-device: ARM::SSE-320-FVP
 
@@ -12,19 +12,18 @@ layer:
         - STDIN
         - STDOUT
         - STDERR
-        - Heap: 786432
+        - Heap: 98304
+      consumes:
+        - CMSIS-RTOS2
 
   define:
     - CMSIS_target_header: \"Corstone-320.h\"
-    - ETHOSU85
-    - ARM_MODEL_USE_PMU_COUNTERS
-    - UART0_BASE_S_TMP
 
   packs:
     - pack: ARM::CMSIS
-    - pack: ARM::CMSIS-Compiler@^2.1.0
-    - pack: ARM::ethos-u-core-driver@^1.25.2
-    - pack: ARM::SSE_320_BSP@1.1.0
+    - pack: ARM::CMSIS-Compiler@^2.3.0
+    - pack: ARM::CMSIS-Ethos-U@^1.0.0
+    - pack: ARM::SSE_320_BSP@^2.0.0
 
   components:
     - component: CMSIS:CORE
@@ -33,9 +32,9 @@ 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 +45,17 @@ layer:
     - component: Device:Native Driver:UART
 
     - component: Machine Learning:NPU Support:Ethos-U Driver&Generic U85
+      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-320.h
+    - regions: RTE/Device/SSE-320-FVP/regions_SSE-320.h

RockPaperScissors/AppKit-E8_USB/Board/Corstone-320/Board.clayer.yml

@@ -1,6 +1,6 @@
 layer:
   type: Board
-  description: Board setup for AI/ML
+  description: Base configuration of SSE-320 FVP
   for-board: ARM::SSE-320
   for-device: ARM::SSE-320-FVP
 
@@ -12,17 +12,15 @@ layer:
         - STDIN
         - STDOUT
         - STDERR
-        - Heap: 786432
+        - Heap: 98304
 
   define:
     - CMSIS_target_header: \"Corstone-320.h\"
-    - ARM_MODEL_USE_PMU_COUNTERS
-    - UART0_BASE_S_TMP
 
   packs:
     - pack: ARM::CMSIS
-    - pack: ARM::CMSIS-Compiler@^2.1.0
-    - pack: ARM::SSE_320_BSP@1.1.0
+    - pack: ARM::CMSIS-Compiler@^2.3.0
+    - pack: ARM::SSE_320_BSP@^2.0.0
 
   components:
     - component: CMSIS:CORE
@@ -31,9 +29,9 @@ 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 +44,8 @@ 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-320.h
+    - regions: RTE/Device/SSE-320-FVP/regions_SSE-320.h

RockPaperScissors/AppKit-E8_USB/Board/Corstone-320/Corstone-320.h

@@ -1,6 +1,6 @@
-/*---------------------------------------------------------------------------
- * Copyright (c) 2025 Arm Limited (or its affiliates).
- * All rights reserved.
+/*
+ * Copyright 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_320_H_
 #define CORSTONE_320_H_

RockPaperScissors/AppKit-E8_USB/Board/Corstone-320/README.md

@@ -1,20 +1,29 @@
 # Board: Arm SSE-320
 
-## Board Layer for Corstone-320 FVP
+## Board Layers for Corstone-320 FVP
 
-This layer works for:
+These layers work for:
 
 ```yml
   board: ARM::SSE-320
   device: ARM::SSE-320-FVP
 ```
 
+Select one layer matching the application's NPU requirements:
+
+| Layer file           | Use in Application
+|:---------------------|:------------------------
+| Board.clayer.yml     | Without Ethos-U support
+| Board-U85.clayer.yml | With Ethos-U85 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 +50,9 @@ interface for SDS data files using a [Virtual Streaming Interface](https://arm-s
 
 | File               | Description
 |:-------------------|:-------------
-| fvp_config.txt     | Corstone-320 FVP without Ethos-U or with Ethos-U85
+| fvp_config.txt     | Corstone-320 FVP without or with an Ethos-U85-256
+
+Ethos-U specific configuration adds `ethosu.extra_args="--fast"` option to speed
+up NPU simulation while preserving functional inference results. Remove it when
+benchmarking performance, otherwise performance counters and timing are not
+representative of real hardware.

RockPaperScissors/AppKit-E8_USB/Board/Corstone-320/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_ */

RockPaperScissors/AppKit-E8_USB/Board/Corstone-320/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_ */

RockPaperScissors/AppKit-E8_USB/Board/Corstone-320/RTE/CMSIS-Compiler/stdin_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 STDIN to CMSIS-Driver USART retarget implementation
+ * Revision:  V1.0.0
+ *
+ * --------------------------------------------------------------------------*/
+
+#ifndef STDIN_CMSIS_UART_CONFIG_H_
+#define STDIN_CMSIS_UART_CONFIG_H_
+
+//-------- <<< Use Configuration Wizard in Context Menu >>> --------------------
+//------ With VS Code: Open Preview for Configuration Wizard -------------------
+
+// <o>UART STDIN Buffer Size
+// <i> UART STDIN buffer is used to store STDIN data received via UART
+// <i> Default: 64
+#ifndef STDIN_UART_BUFFER_SIZE
+#define STDIN_UART_BUFFER_SIZE          64
+#endif
+
+// <s>UART STDIN Buffer Section Name
+// <i> Specify the memory section name for UART STDIN buffer
+// <i> Default: .stdin_uart_buf
+#ifndef STDIN_UART_BUFFER_SECTION
+#define STDIN_UART_BUFFER_SECTION       ".stdin_uart_buf"
+#endif
+
+// <o>UART STDIN Buffer Alignment
+// <i> Define the STDIN buffer alignment in bytes
+// <i> Default: 32
+#ifndef STDIN_UART_BUFFER_ALIGNMENT
+#define STDIN_UART_BUFFER_ALIGNMENT     32
+#endif
+
+// <q>Echo Input Characters
+// <i> If enabled, received characters are echoed to STDOUT
+// <i> Default: 0
+#ifndef STDIN_ECHO
+#define STDIN_ECHO                      0
+#endif
+
+#endif /* STDIN_CMSIS_UART_CONFIG_H_ */