Accessing external variables between two files

I have to read 8255 port status from f1.c.The variables corresponding to each port is defined using XBYTE in main.c file.What keyword should I use to implement this? Thanks & Regards, Reny.
Accessing external variables between two files

I have to read 8255 port status from f1.c.The variables corresponding to each port is defined using XBYTE in main.c file.What keyword should I use to implement this? Thanks & Regards, Reny.
interrupt program with two timer interrupts

Hi , I am using an application which inco-operates both ucos and TCP/IP each working with two timer interrupts respectively. i.e ucos working with timer3 interrupt for 1ms and TCP/IP working with...
interrupt program with two timer interrupts

Hi , I am using an application which inco-operates both ucos and TCP/IP each working with two timer interrupts respectively. i.e ucos working with timer3 interrupt for 1ms and TCP/IP working with...
combining two Interrupts

I want to detect positive and negative edges that are generated by a limit switch. 1. I am using P89V51RD2 . 2. I want to do two different tasks upon these edges. 3. I am making use of capture...