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lab_15/src/SineROMGenerator.c

+#include <stdio.h>
+#include <math.h>
+void main()
+{
+	int i;
+	int data;
+	FILE *fp;
+	if ((fp = fopen("sine_rom.v", "w")) == NULL)
+	{
+		printf("error");
+		exit(0);
+	}
+	fprintf(fp, "%s\n", "module  sine_rom( ");
+	fprintf(fp, "%s\n", "  input            clk, ");
+	fprintf(fp, "%s\n", "  input  wire[9:0] addr, ");
+	fprintf(fp, "%s\n", "  output reg[15:0] dout); ");
+
+	fprintf(fp, "%s\n", "  always @(posedge clk) ");
+	fprintf(fp, "%s\n", "    case(addr) ");
+
+	for (i = 0; i < 1024; i++)
+	{
+		data = (int)(sin(2 * 3.1415926 * i / 4096) * 32767 + 0.5);
+		data &= 0x0000ffff;
+
+		fprintf(fp, "%s%d%s%d%s\n", "     ", i, ":dout=	16'd", data, ";");
+	}
+
+	fprintf(fp, "%s\n", "    endcase ");
+	fprintf(fp, "%s\n", "endmodule");
+	fclose(fp);
+}