diff --git a/targets/TARGET_STM/TARGET_STM32F4/PeripheralNames.h b/targets/TARGET_STM/TARGET_STM32F4/PeripheralNames.h
index f93ab1271d..a7786020d8 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/PeripheralNames.h
+++ b/targets/TARGET_STM/TARGET_STM32F4/PeripheralNames.h
@@ -1,32 +1,18 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2016, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
+
 #ifndef MBED_PERIPHERALNAMES_H
 #define MBED_PERIPHERALNAMES_H
 
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F401xE/system_clock.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F401xE/system_clock.c
index 1660f91c08..c3fd72e2b3 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F401xE/system_clock.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F401xE/system_clock.c
@@ -1,19 +1,17 @@
 /* mbed Microcontroller Library
-* Copyright (c) 2006-2017 ARM Limited
-* 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
-*
-*     http://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.
-*/
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
 
 /**
   * This file configures the system clock as follows:
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F407xE/system_clock.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F407xE/system_clock.c
index 228195ce2c..0f8d291ee0 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F407xE/system_clock.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F407xE/system_clock.c
@@ -1,20 +1,17 @@
 /* mbed Microcontroller Library
-* Copyright (c) 2006-2019 ARM Limited
-*
-* 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
-*
-*     http://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.
-*/
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
 
 /**
   * This file configures the system clock as follows:
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F411xE/system_clock.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F411xE/system_clock.c
index 42cffd5ae0..56a274a17f 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F411xE/system_clock.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F411xE/system_clock.c
@@ -1,19 +1,17 @@
 /* mbed Microcontroller Library
-* Copyright (c) 2006-2017 ARM Limited
-* 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
-*
-*     http://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.
-*/
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
 
 /**
   * This file configures the system clock as follows:
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F412xG/system_clock.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F412xG/system_clock.c
index fb09a1da8a..e7f27727b8 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F412xG/system_clock.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F412xG/system_clock.c
@@ -1,19 +1,17 @@
 /* mbed Microcontroller Library
-* Copyright (c) 2006-2017 ARM Limited
-* 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
-*
-*     http://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.
-*/
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
 
 /**
   * This file configures the system clock as follows:
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F413xH/TARGET_DISCO_F413ZH/TargetInit.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F413xH/TARGET_DISCO_F413ZH/TargetInit.c
index dacfa895b2..38905fb0a7 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F413xH/TARGET_DISCO_F413ZH/TargetInit.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F413xH/TARGET_DISCO_F413ZH/TargetInit.c
@@ -1,3 +1,18 @@
+/* mbed Microcontroller Library
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
 #include "stm32f4xx.h"
 
 void TargetBSP_Init(void) {
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F413xH/system_clock.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F413xH/system_clock.c
index 9c9e657e6f..2f2c518678 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F413xH/system_clock.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F413xH/system_clock.c
@@ -1,19 +1,17 @@
 /* mbed Microcontroller Library
-* Copyright (c) 2006-2017 ARM Limited
-* 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
-*
-*     http://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.
-*/
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
 
 /**
   * This file configures the system clock as follows:
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F429xI/system_clock.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F429xI/system_clock.c
index 681ec15d4a..dff903aa39 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F429xI/system_clock.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F429xI/system_clock.c
@@ -1,19 +1,17 @@
 /* mbed Microcontroller Library
-* Copyright (c) 2006-2017 ARM Limited
-* 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
-*
-*     http://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.
-*/
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
 
 /**
   * This file configures the system clock as follows:
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F439xI/system_clock.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F439xI/system_clock.c
index 681ec15d4a..dff903aa39 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F439xI/system_clock.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F439xI/system_clock.c
@@ -1,19 +1,17 @@
 /* mbed Microcontroller Library
-* Copyright (c) 2006-2017 ARM Limited
-* 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
-*
-*     http://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.
-*/
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
 
 /**
   * This file configures the system clock as follows:
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F446xE/system_clock.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F446xE/system_clock.c
index 240dbfc40f..75a253e3f0 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F446xE/system_clock.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F446xE/system_clock.c
@@ -1,19 +1,17 @@
 /* mbed Microcontroller Library
-* Copyright (c) 2006-2017 ARM Limited
-* 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
-*
-*     http://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.
-*/
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
 
 /**
   * This file configures the system clock as follows:
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F469xI/TARGET_SDP_K1/TargetInit.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F469xI/TARGET_SDP_K1/TargetInit.c
index c5c9b73ae0..8e191729f5 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F469xI/TARGET_SDP_K1/TargetInit.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F469xI/TARGET_SDP_K1/TargetInit.c
@@ -1,3 +1,18 @@
+/* mbed Microcontroller Library
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
 #include "stm32f4xx.h"
 
 /**
diff --git a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F469xI/system_clock.c b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F469xI/system_clock.c
index e6c6a84671..abf9e35a14 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F469xI/system_clock.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F469xI/system_clock.c
@@ -1,19 +1,17 @@
 /* mbed Microcontroller Library
-* Copyright (c) 2006-2017 ARM Limited
-* 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
-*
-*     http://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.
-*/
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
 
 /**
   * This file configures the system clock as follows:
diff --git a/targets/TARGET_STM/TARGET_STM32F4/analogin_device.c b/targets/TARGET_STM/TARGET_STM32F4/analogin_device.c
index a33d130da6..94d85e0230 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/analogin_device.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/analogin_device.c
@@ -1,30 +1,18 @@
 /* mbed Microcontroller Library
- * Copyright (c) 2016, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ ******************************************************************************
  */
+
 #include "mbed_assert.h"
 #include "analogin_api.h"
 
diff --git a/targets/TARGET_STM/TARGET_STM32F4/analogout_device.c b/targets/TARGET_STM/TARGET_STM32F4/analogout_device.c
index 0cbb0a496f..9c74ed8703 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/analogout_device.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/analogout_device.c
@@ -1,30 +1,18 @@
 /* mbed Microcontroller Library
- * Copyright (c) 2015, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ ******************************************************************************
  */
+
 #include "analogout_api.h"
 
 #if DEVICE_ANALOGOUT
diff --git a/targets/TARGET_STM/TARGET_STM32F4/can_device.h b/targets/TARGET_STM/TARGET_STM32F4/can_device.h
index 1b09858752..1a12fec282 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/can_device.h
+++ b/targets/TARGET_STM/TARGET_STM32F4/can_device.h
@@ -1,19 +1,18 @@
 /* mbed Microcontroller Library
- * Copyright (c) 2006-2017 ARM Limited
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
  *
- * 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
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 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.
+ ******************************************************************************
  */
+
 #ifndef MBED_CAN_DEVICE_H
 #define MBED_CAN_DEVICE_H
 
diff --git a/targets/TARGET_STM/TARGET_STM32F4/cmsis.h b/targets/TARGET_STM/TARGET_STM32F4/cmsis.h
index f0c2b2a907..868b1c8ac0 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/cmsis.h
+++ b/targets/TARGET_STM/TARGET_STM32F4/cmsis.h
@@ -1,32 +1,16 @@
 /* mbed Microcontroller Library
- * A generic CMSIS include header
- *******************************************************************************
- * Copyright (c) 2014, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
 
 #ifndef MBED_CMSIS_H
diff --git a/targets/TARGET_STM/TARGET_STM32F4/flash_api.c b/targets/TARGET_STM/TARGET_STM32F4/flash_api.c
index a2e8896249..92e7d73850 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/flash_api.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/flash_api.c
@@ -1,19 +1,16 @@
 /* mbed Microcontroller Library
- * Copyright (c) 2017 ARM Limited
- * Copyright (c) 2017 STMicroelectronics
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
  *
- * 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
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 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.
+ ******************************************************************************
  */
 
 #if DEVICE_FLASH
diff --git a/targets/TARGET_STM/TARGET_STM32F4/gpio_irq_device.c b/targets/TARGET_STM/TARGET_STM32F4/gpio_irq_device.c
index 9f63aff054..d900cf8938 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/gpio_irq_device.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/gpio_irq_device.c
@@ -1,32 +1,18 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2017, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
+
 #include "cmsis.h"
 #include "gpio_irq_device.h"
 
diff --git a/targets/TARGET_STM/TARGET_STM32F4/gpio_irq_device.h b/targets/TARGET_STM/TARGET_STM32F4/gpio_irq_device.h
index feea350ebb..6d7f94bc5f 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/gpio_irq_device.h
+++ b/targets/TARGET_STM/TARGET_STM32F4/gpio_irq_device.h
@@ -1,32 +1,18 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2017, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
+
 #ifndef MBED_GPIO_IRQ_DEVICE_H
 #define MBED_GPIO_IRQ_DEVICE_H
 
diff --git a/targets/TARGET_STM/TARGET_STM32F4/i2c_device.h b/targets/TARGET_STM/TARGET_STM32F4/i2c_device.h
index 678d56b01a..fc229220ed 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/i2c_device.h
+++ b/targets/TARGET_STM/TARGET_STM32F4/i2c_device.h
@@ -1,32 +1,18 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2015, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
+
 #ifndef MBED_I2C_DEVICE_H
 #define MBED_I2C_DEVICE_H
 
diff --git a/targets/TARGET_STM/TARGET_STM32F4/objects.h b/targets/TARGET_STM/TARGET_STM32F4/objects.h
index 0e704faf14..6042c824b6 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/objects.h
+++ b/targets/TARGET_STM/TARGET_STM32F4/objects.h
@@ -1,32 +1,18 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2014, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
+
 #ifndef MBED_OBJECTS_H
 #define MBED_OBJECTS_H
 
diff --git a/targets/TARGET_STM/TARGET_STM32F4/pin_device.h b/targets/TARGET_STM/TARGET_STM32F4/pin_device.h
index 1224c5e181..c0dce3b8de 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/pin_device.h
+++ b/targets/TARGET_STM/TARGET_STM32F4/pin_device.h
@@ -1,32 +1,18 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2016, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
+
 #ifndef MBED_PIN_DEVICE_H
 #define MBED_PIN_DEVICE_H
 
diff --git a/targets/TARGET_STM/TARGET_STM32F4/pwmout_device.c b/targets/TARGET_STM/TARGET_STM32F4/pwmout_device.c
index 058d4c88d7..6479977e49 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/pwmout_device.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/pwmout_device.c
@@ -1,32 +1,18 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2017, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
+
 #include "cmsis.h"
 #include "pwmout_api.h"
 #include "pwmout_device.h"
diff --git a/targets/TARGET_STM/TARGET_STM32F4/pwmout_device.h b/targets/TARGET_STM/TARGET_STM32F4/pwmout_device.h
index bc6f761f18..b944c78b3c 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/pwmout_device.h
+++ b/targets/TARGET_STM/TARGET_STM32F4/pwmout_device.h
@@ -1,32 +1,18 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2017, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
+
 #ifndef MBED_PWMOUT_DEVICE_H
 #define MBED_PWMOUT_DEVICE_H
 
diff --git a/targets/TARGET_STM/TARGET_STM32F4/serial_device.c b/targets/TARGET_STM/TARGET_STM32F4/serial_device.c
index 4aaedb2c97..a95c005262 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/serial_device.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/serial_device.c
@@ -1,31 +1,16 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2017, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
 
 #if DEVICE_SERIAL
diff --git a/targets/TARGET_STM/TARGET_STM32F4/spi_api.c b/targets/TARGET_STM/TARGET_STM32F4/spi_api.c
index 4b62c424ff..0b231ad659 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/spi_api.c
+++ b/targets/TARGET_STM/TARGET_STM32F4/spi_api.c
@@ -1,32 +1,18 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2015, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
+
 #include "mbed_assert.h"
 #include "mbed_error.h"
 #include "spi_api.h"
diff --git a/targets/TARGET_STM/TARGET_STM32F4/spi_device.h b/targets/TARGET_STM/TARGET_STM32F4/spi_device.h
index bc01ee78cd..f52d349871 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/spi_device.h
+++ b/targets/TARGET_STM/TARGET_STM32F4/spi_device.h
@@ -1,32 +1,18 @@
 /* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2017, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
+ ******************************************************************************
  */
+
 #ifndef MBED_SPI_DEVICE_H
 #define MBED_SPI_DEVICE_H
 
diff --git a/targets/TARGET_STM/TARGET_STM32F4/us_ticker_data.h b/targets/TARGET_STM/TARGET_STM32F4/us_ticker_data.h
index 6a0b954f1d..261f6b3041 100644
--- a/targets/TARGET_STM/TARGET_STM32F4/us_ticker_data.h
+++ b/targets/TARGET_STM/TARGET_STM32F4/us_ticker_data.h
@@ -1,19 +1,18 @@
 /* mbed Microcontroller Library
- * Copyright (c) 2006-2018 ARM Limited
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
  *
- * 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
+ * Copyright (c) 2015-2021 STMicroelectronics.
+ * All rights reserved.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 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.
+ ******************************************************************************
  */
+
 #ifndef __US_TICKER_DATA_H
 #define __US_TICKER_DATA_H
 
diff --git a/targets/TARGET_STM/mbed_overrides.c b/targets/TARGET_STM/mbed_overrides.c
index da3f7f84f6..29ab54ffd8 100644
--- a/targets/TARGET_STM/mbed_overrides.c
+++ b/targets/TARGET_STM/mbed_overrides.c
@@ -1,30 +1,18 @@
 /* mbed Microcontroller Library
- * Copyright (c) 2017, STMicroelectronics
+ * SPDX-License-Identifier: BSD-3-Clause
+ ******************************************************************************
+ *
+ * Copyright (c) 2015-2021 STMicroelectronics.
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
  *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ ******************************************************************************
  */
+
 #include "cmsis.h"
 #include "objects.h"
 #include "platform/mbed_error.h"