89C51 serial interrupt handling erro

technical people, when I tried to write a menu to 89C51, with header correct header file, 100% sure I correctly sent the baud rate for hyperterminal program in computer to communicate. I turn on...
89C51 serial interrupt handling erro

technical people, when I tried to write a menu to 89C51, with header correct header file, 100% sure I correctly sent the baud rate for hyperterminal program in computer to communicate. I turn on...
Compiler Erro Keil uVision V4.22.22.0

I don't understand this error: /*---------------------------------------------------------------------------- * This compiling OK, with Num1=22 *------------------------------------------------...
Compiler Erro Keil uVision V4.22.22.0

I don't understand this error: /*---------------------------------------------------------------------------- * This compiling OK, with Num1=22 *------------------------------------------------...
odd erros

Hi I have written am tiny bootloader to program 80C597AF and it works fine few days before but suddenly it stop working and show me error; Searching CPU not found I have also tried some other...