cntr_ulb.tdf

用vhdl语言编写的基于FPGA的波形发生器。对于做实验需要产生的波形非常有用。

--lpm_counter CBX_DECLARE_ALL_CONNECTED_PORTS="OFF" DEVICE_FAMILY="Cyclone" lpm_modulus=0 lpm_width=10 aclr clock cnt_en q sclr
--VERSION_BEGIN 5.1 cbx_cycloneii 2005:12:13:10:36:54:SJ cbx_lpm_add_sub 2005:11:02:10:42:42:SJ cbx_lpm_compare 2005:07:11:09:41:28:SJ cbx_lpm_counter 2005:08:23:15:49:38:SJ cbx_lpm_decode 2005:04:27:14:28:48:SJ cbx_mgl 2006:01:12:16:15:18:SJ cbx_stratix 2005:12:28:11:18:26:SJ cbx_stratixii 2005:11:02:10:43:56:SJ  VERSION_END


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--  and other software and tools, and its AMPP partner logic 
--  functions, and any output files any of the foregoing 
--  (including device programming or simulation files), and any 
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--  to the terms and conditions of the Altera Program License 
--  Subscription Agreement, Altera MegaCore Function License 
--  Agreement, or other applicable license agreement, including, 
--  without limitation, that your use is for the sole purpose of 
--  programming logic devices manufactured by Altera and sold by 
--  Altera or its authorized distributors.  Please refer to the 
--  applicable agreement for further details.


FUNCTION cyclone_lcell (aclr, aload, cin, clk, dataa, datab, datac, datad, ena, inverta, regcascin, sclr, sload)
WITH ( 	cin_used,	lut_mask,	operation_mode,	output_mode,	register_cascade_mode,	sum_lutc_input,	synch_mode) 
RETURNS ( combout, cout, regout);

--synthesis_resources = lut 10 
SUBDESIGN cntr_ulb
( 
	aclr	:	input;
	clock	:	input;
	cnt_en	:	input;
	q[9..0]	:	output;
	sclr	:	input;
) 
VARIABLE 
	counter_cella0 : cyclone_lcell
		WITH (
			cin_used = "false",
			lut_mask = "66AA",
			operation_mode = "arithmetic",
			synch_mode = "on"
		);
	counter_cella1 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "6AA0",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin",
			synch_mode = "on"
		);
	counter_cella2 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "6AA0",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin",
			synch_mode = "on"
		);
	counter_cella3 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "6AA0",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin",
			synch_mode = "on"
		);
	counter_cella4 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "6AA0",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin",
			synch_mode = "on"
		);
	counter_cella5 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "6AA0",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin",
			synch_mode = "on"
		);
	counter_cella6 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "6AA0",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin",
			synch_mode = "on"
		);
	counter_cella7 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "6AA0",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin",
			synch_mode = "on"
		);
	counter_cella8 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "6AA0",
			operation_mode = "arithmetic",
			sum_lutc_input = "cin",
			synch_mode = "on"
		);
	counter_cella9 : cyclone_lcell
		WITH (
			cin_used = "true",
			lut_mask = "6AA0",
			operation_mode = "normal",
			sum_lutc_input = "cin",
			synch_mode = "on"
		);
	aclr_actual	: WIRE;
	clk_en	: NODE;
	data[9..0]	: NODE;
	s_val[9..0]	: WIRE;
	safe_q[9..0]	: WIRE;
	sload	: NODE;
	sset	: NODE;
	sset_node	: WIRE;

BEGIN 
	counter_cella[9..0].aclr = aclr_actual;
	counter_cella[9..0].aload = B"0000000000";
	counter_cella[1].cin = counter_cella[0].cout;
	counter_cella[2].cin = counter_cella[1].cout;
	counter_cella[3].cin = counter_cella[2].cout;
	counter_cella[4].cin = counter_cella[3].cout;
	counter_cella[5].cin = counter_cella[4].cout;
	counter_cella[6].cin = counter_cella[5].cout;
	counter_cella[7].cin = counter_cella[6].cout;
	counter_cella[8].cin = counter_cella[7].cout;
	counter_cella[9].cin = counter_cella[8].cout;
	counter_cella[9..0].clk = clock;
	counter_cella[9..0].dataa = safe_q[];
	counter_cella[9..0].datab = cnt_en;
	counter_cella[9..0].datac = ((sset & s_val[]) # ((! sset) & data[]));
	counter_cella[9].datad = B"1";
	counter_cella[9..0].ena = clk_en;
	counter_cella[9..0].sclr = sclr;
	counter_cella[9..0].sload = (sset_node # sload);
	aclr_actual = aclr;
	clk_en = VCC;
	data[] = GND;
	q[] = safe_q[];
	s_val[] = B"1111111111";
	safe_q[] = counter_cella[9..0].regout;
	sload = GND;
	sset = GND;
	sset_node = B"0";
END;
--VALID FILE