Issues

• Planned release: CMSIS 6.4.0

  help wanted
  ARM-software/CMSIS_6#322 · Filter by author JonatanAntoni opened on Sep 10, 2026 · CMSIS 6.4.0
  3

  

• [Bug]: __log2_up does not behave as documented

  Bug

  ARM-software/CMSIS_6#320 · Filter by author hamtinepeng opened on Sep 4, 2026
  1

• [Feature]: Cache Maintenance Support for Cortex-A and Cortex-R

  Feature

  ARM-software/CMSIS_6#318 · Filter by author hamtinepeng opened on Sep 2, 2026
  5

• MISRA C:2012 Deviations page contains rule-number mismatches vs. the official standard

  documentation
  Bug

  ARM-software/CMSIS_6#310 · Filter by author wosayttn opened on Aug 11, 2026
  

• Question: rationale for committing Zephyr-specific zephyr/module.yml upstream vs. handling it downstream

  ARM-software/CMSIS_6#304 · Filter by author minameHeart opened on Jul 16, 2026

• Potential date for next release

  question
  ARM-software/CMSIS_6#297 · Filter by author sc20tdk opened on May 19, 2026
  1

  

• __NVIC_SetVector should not use uint32_t for vector table

  ARM-software/CMSIS_6#296 · Filter by author tcpluess opened on May 14, 2026
  5

  

• Potential data inconsistency or endless loop in SCB_DisableDCache due to stack-resident locals after D-Cache disable (debug optimization)

  ARM-software/CMSIS_6#286 · Filter by author fatiki opened on Mar 11, 2026
  7

  

• IRQ_GetMode/IRQ_GetMode

  ARM-software/CMSIS_6#280 · Filter by author ua1arn opened on Feb 17, 2026
  5

  

• How to Unlock ITM (How to migrate ITM->LAR)

  question
  ARM-software/CMSIS_6#269 · Filter by author longnhieu7 opened on Nov 4, 2025
  6

  

• cmsis_iccarm.h lacks of correct prototypes reported by IAR

  ARM-software/CMSIS_6#264 · Filter by author PLFSTM opened on Oct 22, 2025
  6

• Where to find arm_acle.h

  question
  ARM-software/CMSIS_6#258 · Filter by author khans176 opened on Oct 3, 2025
  3

• __disable_irq() API change

  bug
  Bug

  ARM-software/CMSIS_6#255 · Filter by author arlleex opened on Aug 27, 2025
  3

  

• Incorrect MPU Normal Memory Attributes in armv8m_mpu.h

  bug
  Bug

  ARM-software/CMSIS_6#251 · Filter by author xtayyt opened on Aug 14, 2025
  2

  

• CMSIS 6.2.0

  ARM-software/CMSIS_6#248 · Filter by author CanastraRF opened on Aug 5, 2025
  3

• aarch64 interoperability

  ARM-software/CMSIS_6#244 · Filter by author ua1arn opened on Jun 27, 2025
  3

  

• Cortex-M interrupts naming mis-alignment

  ARM-software/CMSIS_6#239 · Filter by author tarek-bochkati opened on May 14, 2025
  1

• [startup.c] missing __NO_RETURN in Default_Handler declaration

  question
  ARM-software/CMSIS_6#234 · Filter by author tarek-bochkati opened on Apr 27, 2025
  3

  

• In CMSIS workflows, which layer is responsible for handling I/D cache coherence?

  question
  ARM-software/CMSIS_6#222 · Filter by author jamison-chiu opened on Mar 25, 2025
  1

• core_ca.h defines for ISR and SGIR_INTID

  bug
  Bug

  ARM-software/CMSIS_6#215 · Filter by author NVMarkovich opened on Jan 24, 2025
  4

  

• CMSIS-Core Cortex-M's Register Map is missing armv8-m registers

  ARM-software/CMSIS_6#210 · Filter by author ithinuel opened on Dec 6, 2024
  1

  

• API RTOS documentation link improvement

  documentation
  ARM-software/CMSIS_6#208 · Filter by author ReinhardKeil opened on Dec 4, 2024
  1

• Issue with ICACHE with GCC compiler

  ARM-software/CMSIS_6#196 · Filter by author djemaiMohamed opened on Oct 21, 2024
  1

  

• Structs for memory mapped core register definitions

  enhancement
  ARM-software/CMSIS_6#194 · Filter by author tudortimi opened on Sep 28, 2024
  4

• Newbie Example CMSIS drivers code project / link procedures in MCUExpresso?

  ARM-software/CMSIS_6#191 · Filter by author RKnappPMT opened on Sep 18, 2024
  2