m-profile/gcc: Support picolibc startup mechanism (#246) Use picolibc's _start function instead of providing our own. (cherry picked from commit e902f869b5b1bb683c53bca0929ce49401c637ab) (cherry picked from commit 30a859f44ef8ab4dc8f84b03ed586fd16ccf9d74) Original-Signed-off-by: Keith Packard <keithp@keithp.com> GitOrigin-RevId: 30a859f44ef8ab4dc8f84b03ed586fd16ccf9d74 Cr-Build-Id: 8707175054774127297 Cr-Build-Url: https://cr-buildbucket.appspot.com/build/8707175054774127297 Copybot-Job-Name: zephyr-cmsis_6-copybot-downstream Change-Id: Ifef8939a93002635d6b8e1db0379538b5ea847c8 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/cmsis_6/+/6828027 Bot-Commit: ChromeOS Copybot <copybot@chops-service-accounts.iam.gserviceaccount.com> Tested-by: ChromeOS Copybot <copybot@chops-service-accounts.iam.gserviceaccount.com> Commit-Queue: ChromeOS Copybot <copybot@chops-service-accounts.iam.gserviceaccount.com>
Note: The branch main of this GitHub repository contains our current state of development and gives you contiguous access to the CMSIS development for review, feedback, and contributions via pull requests. For stable versions ready for productive use please refer to tagged releases, like
.
| Repository | Description |
|---|---|
| CMSIS-DSP | Compute library for various data types: fixed-point (fractional q7, q15, q31) and single precision floating-point (32-bit). |
| CMSIS-NN | Software library of efficient neural network kernels optimized for Arm Cortex-M processors. |
| CMSIS-FreeRTOS | CMSIS adoption of FreeRTOS including CMSIS-RTOS2 API layer. |
| CMSIS-RTX | Keil RTX Real-Time Operating System (CMSIS-RTOS2 native implementation). |
| CMSIS-Driver | Generic MCU driver implementations and templates for Ethernet MAC/PHY and Flash. |
| CMSIS-Driver_Validation | CMSIS-Driver Validation can be used to verify CMSIS-Driver in a user system |
| cmsis-pack-eclipse | CMSIS-Pack Management for Eclipse reference implementation Pack support |
| CMSIS-Zone | CMSIS-Zone Utility along with example projects and FreeMarker templates |
| NXP_LPC | CMSIS Driver Implementations for the NXP LPC Microcontroller Series |
| mdk-packs | IoT cloud connectors as trail implementations for MDK (help us to make it generic) |
| trustedfirmware.org | Arm Trusted Firmware provides a reference implementation of secure world software for Armv8-A and Armv8-M. |
| Directory | Content |
|---|---|
| CMSIS/Core | CMSIS-Core related files (for release) |
| CMSIS/CoreValidation | Validation for Core(M) and Core(A) (NOT part of pack release) |
| CMSIS/Driver | CMSIS-Driver API headers and template files |
| CMSIS/RTOS2 | RTOS v2 related files (for Cortex-M & Armv8-M) |
| CMSIS/Documentation | Doxygen source of the users guide (NOT part of pack release) |
This GitHub development repository lacks pre-built libraries of various software components (RTOS, RTOS2). In order to generate a full pack one needs to have the build environment available to build these libraries. This causes some sort of inconvenience. Hence the pre-built libraries may be moved out into separate pack(s) in the future.
To build a complete CMSIS pack for installation the following additional tools are required:
Using these tools, you can generate on a Windows PC:
Arm CMSIS is licensed under 
Contributions are accepted under
Please feel free to raise an issue on GitHub to report misbehavior (i.e. bugs) or start discussions about enhancements. This is your best way to interact directly with the maintenance team and the community. We encourage you to append implementation suggestions as this helps to decrease the workload of the very limited maintenance team.
We will be monitoring and responding to issues as best we can. Please attempt to avoid filing duplicates of open or closed items when possible. In the spirit of openness we will be tagging issues with the following:
