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Multitasking Microcontroller

Thu, 07 Dec 2006 03:16:35 -0700

I have to design an 8-bit microcontroller with multitasking. i have to do this in VHDL and implement it on an FPGA.
If anyone can help me in any way .... please reply.

Brennan

Re: Multitasking Microcontroller

Sun, 17 Dec 2006 06:53:52 -0700

Use interrupts to simulate the multitasking and don't forget that the multitaskting is taken care of by a program not the hardware.

Re: Multitasking Microcontroller

Wed, 20 Dec 2006 04:54:26 -0700

: Use interrupts to simulate the multitasking and don't forget that the multitaskting is taken care of by a program not the hardware.
:
:

Thank you for the above advice. But I would be designing my own microcontroller, so I want the hardware to take care of the multitasking...............
I have thought of designing the microcontroller in such a way that it automatically starts executing the 1st task then after a fixed time (determined by a count down timer)a task switch occurs. My microcontroller should thus be able to carry out multitasking without any actual Operating System.

Re: Multitasking Microcontroller

Sat, 23 Dec 2006 08:44:49 -0700

If that is the case then you will need to add some extra registers (call them say task registers),then use a clock (as you say that will interrupt the microcontroller at specific intervall of time (say 10 milliseconds).The microcontroller will then switch from one task to the other.
I can help you with the design.It is difficult to be nore explicit here.