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The error is:
@E: CG165 :"E:\verilog\new\cqpic100d\PIC100D\VERILOG\DATARAM.V":27:10:27:22|Illegal defparam. parameter LPM_WIDTHAD cannot be found in module lpm_ram_dq.
the source code of verilog:
module dataram(addr, read, write, clk, datain, dataout);
input [8:0] addr;
input read;
input...
a transmitter ic & a receiver ic all bulit with one 8 bit risc mcu, the transtmitter is ok ,but the receiver ic test and produce all ok ,but when the product move one place to other place , the receiver is not work, oscilliter is ok ,it seems the mcu not work, what problem?
In the lcd system,use 1.5v (vdd) battery,to show lcd i need to generate -1.5v(vee) source.
The lcd is 2 bias,3 com 7segment, the com need 1.5v 0v -1.5v total three voltage,I supply 1.5v through a pmos,the substrate connet 1.5v;send -1.5v by a nmos,the nmos substrate connet -1.5v;but i sent 0v...
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