On 1/19/12 5:51 AM, Wesley New wrote:
> Hi All,
>
> I have had to change the way my uesr-defined code was written to the new
> method, using <func>.verilog_code but I am having a problem using it
> inside a class.
>
> Here is the code:
>
> from myhdl import *
>
> class sw_reg:
>
> def __init__(self):
> #self.sw_reg_r_wrapper.__dict__['verilog_code'] = "verilog"
> #self.sw_reg_r_wrapper.verilog_code = "verilog"
> temp2 = 0
>
>
> def sw_reg_wrapper(self, wb_clk_i):
>
> #========================
> # TODO:Simulation Logic
> #========================
> @always(wb_clk_i.posedge)
> def logic():
> temp = 1
>
> return logic
>
> sw_reg_r_wrapper.verilog_code = "verilog code blah blah"
>
>
> But when I call the toVerilog method, as below, it doesnt use the
> user-defined code (Note: this works when there is no class)
>
> #=======================================
> # For testing of conversion to verilog
> #=======================================
> def convert():
>
> x = sw_reg_r()
> wb_clk_i = Signal(bool(0))
>
> toVerilog(x.sw_reg_r_wrapper, wb_clk_i=wb_clk_i)
>
>
> if __name__ == "__main__":
> convert()
>
> I have tried adding the verilog_code explicitly to the dictionary
> associated with the function (See the commented lines in the __init__
> function) but this doesnt work either. What am I doing wrong?
>
> Thanks for you time.
>
> Wesley
>
>
>
This is currently a known limitation, you cannot convert a class method
directly because the convert does not recognize the first parameter,
"self", and uses "self" as a port.
The current work around, is to have a normal function that is converted
and have the class method invoke the function (essentially pass all
arguments except self).
This is one of the items I was hoping to address in the MEP I proposed
but finding adequate time to work on it is, lets say, difficult.
Hope that helps,
Chris
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