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FPGA上实现UART串口原程序

net rx loc=p143;
net tx loc=p141;
net data<0>  loc=p114;
net data<1>  loc=p115;
net data<2>  loc=p117;
net data<3>  loc=p119;
net data<4>  loc=p120;
net data<5>  loc=p113;
net data<6>  loc=p111;
net data<7>  loc=p116;
net clk loc=p80;
net cs  loc=p108;
net a<0> loc=p97;
net a<1> loc=p100;
net a<2> loc=p101;
net a<3> loc=p106;
#net key loc=p87;