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Download/install software

Keil µVision (Windows only)

We recommend and have tested Keil µVision (MDK-ARM) version 5.43 for all ModusToolbox™ supported devices.
Note:
Do not use version 5.42a. There is a known defect with cprj files in that version. Also, do not use version 5.43a due to an issue with FPU settings.

The default installation location for the ARM compiler is C:\Keil_v5\ARM. Set the CY_COMPILER_ARM_DIR environment variable to the correct installation path using forward slashes. Alternatively, you can set this variable in the Makefile for each application. Refer to the ModusToolbox™ tools package user guide for more details about build system variables.

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