Hello all,
For a home project I use the AT89C51RE2. I wrote some C code with Keil uVision3 to have this micro respond to serial interrupts via UART0. I used the internal baudrate generator and set it to 9600 baud. The interrupt function is something like: void call_ISR(void) interrupt 4. When using the uVision debugger/simulator, the debugger goes to the interrupt handler on a simulated interrupt. So far so good. Arriving at the code line with 'SBUF_0' the next step the debugger goes to the end of the interrupt handler and the content of SBUF_0 will not be read! What could be the cause of this??
Any help i will appreciate!
Max
Arriving at the code line with 'SBUF_0' the next step the debugger goes to the end of the interrupt handler and the content of SBUF_0 will not be read! What could be the cause of this??
How the heck should we know? You didn't give us anything to work with!
Did it really not occur to you that "the code line with SBUF_0" might not quite qualify as a sufficient description of what your interrupt handler actually does?