- Forums
- Product Forums
- General Purpose MicrocontrollersGeneral Purpose Microcontrollers
- i.MX Forumsi.MX Forums
- QorIQ Processing PlatformsQorIQ Processing Platforms
- Identification and SecurityIdentification and Security
- Power ManagementPower Management
- Wireless ConnectivityWireless Connectivity
- RFID / NFCRFID / NFC
- Advanced AnalogAdvanced Analog
- Neural Processing UnitsNeural Processing Units
- MCX Microcontrollers
- S32G
- S32K
- S32V
- MPC5xxx
- Other NXP Products
- S12 / MagniV Microcontrollers
- Powertrain and Electrification Analog Drivers
- Sensors
- Vybrid Processors
- Digital Signal Controllers
- 8-bit Microcontrollers
- ColdFire/68K Microcontrollers and Processors
- PowerQUICC Processors
- OSBDM and TBDML
- S32M
- S32Z/E
-
- Solution Forums
- Software Forums
- MCUXpresso Software and ToolsMCUXpresso Software and Tools
- CodeWarriorCodeWarrior
- MQX Software SolutionsMQX Software Solutions
- Model-Based Design Toolbox (MBDT)Model-Based Design Toolbox (MBDT)
- FreeMASTER
- eIQ Machine Learning Software
- Embedded Software and Tools Clinic
- S32 SDK
- S32 Design Studio
- GUI Guider
- Zephyr Project
- Voice Technology
- Application Software Packs
- Secure Provisioning SDK (SPSDK)
- Processor Expert Software
- Generative AI & LLMs
-
- Topics
- Mobile Robotics - Drones and RoversMobile Robotics - Drones and Rovers
- NXP Training ContentNXP Training Content
- University ProgramsUniversity Programs
- Rapid IoT
- NXP Designs
- SafeAssure-Community
- OSS Security & Maintenance
- Using Our Community
-
- Cloud Lab Forums
-
- Knowledge Bases
- ARM Microcontrollers
- i.MX Processors
- Identification and Security
- Model-Based Design Toolbox (MBDT)
- QorIQ Processing Platforms
- S32 Automotive Processing Platform
- Wireless Connectivity
- CodeWarrior
- MCUXpresso Suite of Software and Tools
- MQX Software Solutions
- RFID / NFC
- Advanced Analog
- Neural Processing Units
-
- NXP Tech Blogs
- Home
- :
- Translated Content
- :
- Multi Source Translation Content
- :
- 2387504_en-US
2387504_en-US
- Subscribe to RSS Feed
- Mark as New
- Mark as Read
- Bookmark
- Subscribe
- Printer Friendly Page
- Report Inappropriate Content
2387504_en-US
2387504_en-US
Hi Everyone,
I am currently working on a Proof of Concept (PoC) project using the NXP MIMXRT1176DVMAA processor on an i.MXRT1170 EVKB board.
My development environment consists of MCUXpresso IDE with the safety-certified Arm Compiler for Embedded FuSa.During compilation, I want to avoid the generation of 16-bit instructions and force the toolchain to emit only 32-bit instructions.I understand that the Thumb-2 (T32) instruction set natively mixes 16-bit and 32-bit instructions by default to balance performance and code size. However, for our project requirements, we need every single generated instruction to be exactly 32 bits wide.
Could anyone kindly guide me on how to configure the compiler or toolchain options in MCUXpresso IDE to enforce 32-bit wide instruction generation?
Thank you,
Karthi
Hi @KD7 ,
Thanks for your interest in NXP MIMXRT series!
On RT1170 / Cortex-M7, this is not supported as a global compiler setting. The core executes ARMv7-M Thumb/T32 code, and T32 is inherently mixed 16-bit/32-bit. The A32 -marm option would be the fixed 32-bit instruction set option, but it is not valid for M-profile targets.
For hand-written assembly only, .W can force selected T32 instructions to 32-bit encodings where valid, but it cannot force all compiler-generated C/C++ instructions to be 32-bit.
ARM may provide more information on this topic.
Thanks and best regards,
Gavin