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标题: VerilogA代码error求助 [打印本页]

作者: Ichika丶 时间: 2023-12-15 18:00
标题: VerilogA代码error求助
楼主是在学习模拟，现在需要搭建一个PFD（鉴频鉴相器）来进行行为级仿真验证
在网上抄了一段VerilogA代码
但是最后报syntax error
关于这方面我确实从来没接触过....希望有前辈能指点下如何修改

(, 下载次数: 7 )

作者: 420洛洛 时间: 2023-12-15 18:00
cross语句里面不能用<+

作者: 420洛洛 时间: 2023-12-15 18:44

420洛洛发表于 2023-12-15 18:42
cross语句里面不能用

你得加点begin end

作者: 420洛洛 时间: 2023-12-15 18:48
@(cross ( V(clk)-vth,  -1  )) begin
out_scaled = 0;
out_scaled = out_scaled + ((V(vd9) > vtrans) ? 512 : 0);
out_scaled = out_scaled + ((V(vd8) > vtrans) ? 256 : 0);
out_scaled = out_scaled + ((V(vd7) > vtrans) ? 128 : 0);
out_scaled = out_scaled + ((V(vd6) > vtrans) ? 64 : 0);
out_scaled = out_scaled + ((V(vd5) > vtrans) ? 32 : 0);
out_scaled = out_scaled + ((V(vd4) > vtrans) ? 16 : 0);
out_scaled = out_scaled + ((V(vd3) > vtrans) ? 8 : 0);
out_scaled = out_scaled + ((V(vd2) > vtrans) ? 4 : 0);
out_scaled = out_scaled + ((V(vd1) > vtrans) ? 2 : 0);
out_scaled = out_scaled + ((V(vd0) > vtrans) ? 1 : 0);
if(i<N)begin
sum = sum + (V(vpn)*(out_scaled-512));
i = i + 1;
end
else begin
average = sum/N;
sum = 0;
i = 0;
end
end
   V(vout9) <+ transition( vout[9], tdel, trise, tfall );
   V(vout8) <+ transition( vout[8], tdel, trise, tfall );
   V(vout7) <+ transition( vout[7], tdel, trise, tfall );
   V(vout6) <+ transition( vout[6], tdel, trise, tfall );
   V(vout5) <+ transition( vout[5], tdel, trise, tfall );
   V(vout4) <+ transition( vout[4], tdel, trise, tfall );
   V(vout3) <+ transition( vout[3], tdel, trise, tfall );
   V(vout2) <+ transition( vout[2], tdel, trise, tfall );
   V(vout1) <+ transition( vout[1], tdel, trise, tfall );
   V(vout0) <+ transition( vout[0], tdel, trise, tfall );
end
endmodule

作者: 420洛洛 时间: 2023-12-15 18:49

420洛洛发表于 2023-12-15 18:48
@(cross ( V(clk)-vth, -1 )) begin
out_scaled = 0;
out_scaled = out_scaled + ((V(vd9) > vtran ...

类似这样的

作者: zt_ic222 时间: 2023-12-15 20:50
楼上说的都对，自己下点语法资料看看，查查cross和“<+"的用法

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