Hi. I am using STM8S207R8.When i build the project in ST Visual studio , i get error as #error clnk Release\sdrivemkii.lkf:1 @svlreg missing for function f_UART1_RX_IRQHandler

[SCHOP.1]

how can i solve this issue?

[AA1]

You should read COSMIC manual. Search for svlreg.

If an interrupt handler uses longs (and maybe floats), you have to add @svlreg.

[SCHOP.1]

Thanks AA.