Overview

The Microchip SAMV71-RT Series Device Family Pack (DFP) is a CMSIS-Pack that:

• Enables compatible tools with device support.
• Contains support files for the MPLAB XC32 Compiler.
• Contains support files for the GCC compiler.
• Contains support files for the Arm Compiler for Embedded.
• Contains support files for the IAR Embedded Development Tools.
• Contains System View Description (SVD) descriptions of the peripherals.
• Flash algorithms for the on-chip flash memory.

Related packs

    - pack: ARM::CMSIS

Devices

ATSAMV71Q21RT

MISRA-C:2023 Compliance Deviations List

Deviation ID: MFWCG-40

• Rule 5.5: Identifiers shall be distinct from macro names.
• Use case: Identifiers corresponding to register names.

Example:

```C typedef union { struct { uint32_t GPIO:29; uint32_t :3; } vec; uint32_t reg; } ECIA_SRC8_Type;

#define GPIO (0x40081000) ```

• Reason: Access to hardware.

The macros expand into the same identifiers, which allow users to detect for the presence of specific registers during preprocessing.

• Scope: Device headers for the DEC15xx and MEC15xx family (<device-name>.h).

Deviation ID: MFWCG-42

• Rule 20.9: All identifiers used in the controlling expression of #if or #elif preprocessing directives shall be #define'd before evaluation.
• Use case: Use of compiler builtin macros.

Example:

C #ifdef (__ARM_FP == 14) || (__ARM_FP == 4) fpu_enable(); #endif

• Reason: Access to hardware.

Headers may rely on builtin macros from the compiler and are written under the assumption that if the macro is not defined, its value is zero.

• Scope: All device headers (<device-name>.h).

Deviation ID: MFWCG-43

• Rule 21.1: #define and #undef shall not be used on a reserved identifier or reserved macro name.
• Use case: Reserved names, beginning with _ followed by a capital letter or __ followed by a lower-case are within the compiler's namespace.

Example:

C #define __IO volatile

• Reason: Access to hardware; Code Quality (Usability: Accessibility).

Within these headers originate many reserved names that are within the compiler's namespace.

• Scope: All device headers (<device-name>.h).

Deviation ID: MFWCG-44

• Rule 21.2: A reserved identifier or reserved macro name shall not be declared.
• Use case: Reserved names, beginning with _ followed by a capital letter or __ followed by a lower-case are within the compiler's namespace.

Example:

C extern const VECTOR_TABLE_Type __VECTOR_TABLE;

• Reason: Access to hardware; Code Quality (Usability: Accessibility).

Within these headers originate many reserved names that are within the compiler's namespace.

• Scope: All device headers (<device-name>.h).

Support

For support questions, contact Microchip Support through https://www.microchip.com/en-us/support.