vlsi and vhdl programming

Thread Starter

vead

Joined Nov 24, 2011
629
hello

VLSI engineer design chip using hardware descriptions language
VLSI circuit have everywhere
vlsi device -memory, processor, controller

i am not sure but i think microcontroller is design using vhdl programming
c, c++ language is use for microcontroller
what is difference between c and vhdl language why they both use for microcontroller
 

guitarguy12387

Joined Apr 10, 2008
359
I'm not sure exactly what you're getting at with the explanation... but to answer your question:

C is a software programming language. It is used to program your processor. It gets compiled to assembly instructions, stored in instruction memory, and decoded/executed by the processor. Note that the processor hardware is fixed.

VHDL is hardware. When it gets 'compiled' (more properly, synthesized), you get a resulting netlist of logic gates. If you want, you can design the hardware of a processor in VHDL. That is, you design the ALU, pipelineing, register file, instruction/data memories, pc, etc. The processor can be designed however you want.

You could say that you might design a processor (hardware) in VHDL, and then program it (software) in C.
 
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