fix error: SWD/JTAG Communication Failure in Keil
How to fix Options for Target... >> Debug >> Settings >> Connect under Reset. References: https://community.arm.com/support-forums/f/keil-forum/36366/swd-communication-failure
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fix error: missing compiler version 5 on Keil
1. Download Arm Compiler 5 link: google drive 2. Install Arm compiler 5 Extract and Run "setup.exe" file. Create new folder "ARM5" inside "C:\Keil_v5\ARM" path. 3. Add Arm compiler 5 into Keil 4. Select Arm Compiler 5 as default References: Arm Compiler downloads index