This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

KEIL C error message

Hello,

My MCU is 89S51/89C51,

System shown below message, when I press debug
Error: *** Device is not supported by Toolchain ! ***
Debugger aborted !

System shown below message, when I press rebulid
Error: *** Project 'TEST_2', Target 'Target 1', Device 'Atmel::AT89C51' is not supported by Toolchain ! ***.

please kindly teach me, how does solve this problem?

Sincerely,

Robert