help to understand

[Uzmeed]

I have attached the schematic of my systems c code 

To me it seems that output Serial_out is not connected to any input rather connected constantly to ground

 

Am I right ??

schematic.pdf

[David Black]

That's what the schematic says. No idea what your SystemC code looks like. Also, why would you use SystemC for RTL design? Use SystemVerilog or VHDL instead. SystemC is not suited well to RTL.

[Roman Popov]

2 hours ago, David Black said:

SystemC is not suited well to RTL.

This is not true. We use SystemC for RTL when we need to create highly-configurable RTL IPs.

Also SystemC RTL has advantage in code sharing with VPs. So for example if I write UART in SystemC I can reuse CSR code between RTL and VP.

And SystemC is better for FSMs, because CTHREADs are synthesizable. Unlike Verilog/VHDL where you need to code FSM state explicitly. (This is of course Verilog/VHDL synthesis tools limitation, not languages limitation ) 

The only major drawback of SystemC is specifying combinatorial circuits, because SystemC has no wildcard sensitivity lists, like always @* in Verilog.

[Uzmeed]

Hi

I am very much new to system c

My code is attached can you please help me that whats wrong am i doing that Serial_out is not connected to any signal

I have assigned it a value in Register_Transfer.cpp

Best Regards

Uzmeed 

Output_n_nextstate.cpp

Register_Transfer.cpp

State_Transition.cpp

UART_tx.h

[Roman Popov]

If you are new to SystemC you should start with some tutorial, for example https://www.doulos.com/knowhow/systemc/tutorial/. Then learn by exploring examples bundled with SystemC kernel. SystemC standard PDF also has lots of useful information for beginners.

[Uzmeed]

It seems to me that I am unable to take a signal from process to another right??

 

[Roman Popov]

18 minutes ago, Uzmeed said:

It seems to me that I am unable to take a signal from process to another right??

There are no process-local signals in SystemC.