When we write a code in C language, it's like writing a story or telling a computer what to do in a specific way. However, computers understand code in a completely different language called Binary, which consists of only 0s and 1s. So, to make it easier for the computer to understand our C code, we need to convert it into a language that the computer can read easily. That's why we use HDL or Hardware Description Language.
HDL is a language used to design digital circuits, and it is much closer to the language that computer hardware can understand, unlike C language. So, through a C to HDL converter, we can transform our C code into HDL code, which can then be used to design logic circuits, which the computer can understand.
To do this, the C to HDL converter tool first analyzes the C code and tries to understand the flow of the program. It then maps the logic of the code into HDL code using certain rules and algorithms, creating a digital representation of the logical circuits described in the C program.
Once this HDL code is generated, it can be simulated using software such as Verilog, and then implemented in an FPGA or other programmable digital logic devices to create custom hardware that carries out the specific functionality described in the original C code.
In short, C to HDL is a process to convert C code into a language that computers can understand more easily by creating a digital representation of the logical circuits that the C code describes, which can then be implemented in hardware.