I tried to write position independent code with keil, but the interrupt handle seems does not work,the code is below
DCD UART0_IRQHandler_Proc - . ; 21: UART0
UART0_IRQHandler_Proc PROC IMPORT UART0_IRQHandler [WEAK] B . ENDP
Anybody can point to the documentation with which I can proceed further?
I use a variable to recode how many times it enters the uart0 handle,it keeps zero.
Anybody knows how interrupt mechanism works with PI code.