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I am using At89s8252 to develope my project. and i have some difficult now. I need to set the following things, 1. Timer 0 and a time ticker 2. SPI port for serial interfancing 3. Serial port for data transmission. I have no problem for each sub-program, However, when i combin it together in pne prooject, i find that the timer 0 have noo respose. What should i do ?
"What should i do ?" Post the bare minimum code that demonstrates the problem. Stefan
Which timer do you use for the serial port? If it also T0, than this might be your problem. Tim
Hi, If you are using interrupts then SPI and Serial int have the same vector addrs... I suggest that you post your code here and may be we can help solve your problem. Rgds Raj Shetgar