Hi,
I m communicating over uart for a number of application. I m using UART1 for dual function and uart0 for signle function. I assigned both interrupt soruce to the same interrupt function IVG-10. My puesude code is like below.
EX_IN_HANDLER {
if (UART1_LSR & DR) {
read data
}
if (UART0_LSR & DR) {
read data
}
}
this has no problem and i think this is logical.
The question is i m seeing interrupt hit at the begining altough there is no communication of peripherals. when i check registers i actually seeing LSR DR bits are set for both uart controller beside IIR_NINT=0, IIR_STATUS=2
I dont know why this is hapenning. Do you have any idea?
Best regards,