I am using a keil uVision 5 which runs a compiler 6. I want to download compiler 5. How do I resolve this issue or which other means can I get to download the arm complier 5 for my system.
...in addition to the link provided by my colleague Ronan, see:
"Can I add Arm Compiler 5 to Keil MDK 5.37 or newer?"
https://developer.arm.com/documentation/ka005073/latest