Hi guys
I have a project to do an 8 led rotation using t0 timer to do time delay.Also using interupts 0 and 1 to up and down the frequency of the rotation
Any similar post to guide me?
MC: ATmega 32
prefere assembler but I m ok with c
thanks a lot
For starters, please define what you mean by "rotation"!
Jim
I mean turning on the leds one after another in a loop
Are they being driven directly from port pins?
Jim
Yes, they are.
Then think of what you need on the port pins:
Step one 0x00000001
Step two 0x00000010
Step three 0x00000100
It clearly behaves like a left shift except for the special case of step 8 to step 9.
You should be able to do this very easily in assembler. I would set up a timer to generate interrupts at the shift interval. In the interrupt, shift the value in the port (or handle the end-around case). The latter is particularly easy in assem since you have access to the carry bit.
Jim
I see, ok I ll try it.Thanks a lot
