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test_xbar_8x8.vhd @ 22

Last change on this file since 22 was 22, checked in by rolagamo, 12 years ago

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1	--------------------------------------------------------------------------------
2	-- Company:
3	-- Engineer: GAMOM NGOUNOU
4	--
5	-- Create Date: 19:03:05 07/11/2011
6	-- Design Name:
7	-- Module Name: C:/Xilinx/SWITCH_GENERIC_16_16/test_xbar_8x8.vhd
8	-- Project Name: GENERIC_16_16
9	-- Target Device:
10	-- Tool versions:
11	-- Description:
12	--
13	-- VHDL Test Bench Created by ISE for module: SWITCH_GENERIQUE
14	--
15	-- Dependencies:
16	--
17	-- Revision:
18	-- Revision 0.01 - File Created
19	-- Additional Comments:
20	--
21	-- Notes:
22	-- This testbench has been automatically generated using types std_logic and
23	-- std_logic_vector for the ports of the unit under test. Xilinx recommends
24	-- that these types always be used for the top-level I/O of a design in order
25	-- to guarantee that the testbench will bind correctly to the post-implementation
26	-- simulation model.
27	--------------------------------------------------------------------------------
28	LIBRARY ieee;
29	USE ieee.std_logic_1164.ALL;
30	--use IEEE.std_logic_textio.ALL;
31	-- Uncomment the following library declaration if using
32	-- arithmetic functions with Signed or Unsigned values
33	USE ieee.numeric_std.ALL;
34	use work.Coretypes.all;
35
36
37	ENTITY test_xbar_8x8 IS
38	END test_xbar_8x8;
39
40	ARCHITECTURE behavior OF test_xbar_8x8 IS
41	CONSTANT MAXPORT :natural:=8;
42	-- Component Declaration for the Unit Under Test (UUT)
43
44	COMPONENT SWITCH_GEN
45	GENERIC (number_of_ports : positive := MAXPORT);
46	PORT(
47	clk : IN std_logic;
48	reset : IN std_logic;
49
50	Port_in : in typ_portIO(1 to MAXPORT) ;
51	Port_out : out typ_portIO(1 to MAXPORT);
52
53	cmd_in_en : IN std_logic_vector(MAXPORT downto 1);
54	data_in_en : IN std_logic_vector(MAXPORT downto 1);
55	data_out_en : IN std_logic_vector(MAXPORT downto 1);
56	fifo_in_full : OUT std_logic_vector(MAXPORT downto 1);
57	fifo_in_empty : OUT std_logic_vector(MAXPORT downto 1);
58	data_available : OUT std_logic_vector(MAXPORT downto 1)
59
60	);
61	END COMPONENT;
62	COMPONENT Stimport5
63	port (
64	clk : in std_logic;
65	reset : in std_logic;
66	clk_en : in std_logic;
67	wr_en : out std_logic;
68	data : out std_logic_vector (7 downto 0)
69	);
70
71	END COMPONENT;
72	type naturel is array (natural range <>) of natural range 0 to 511;
73	type typ_send is (s_head,s_len,s_len2,s_data,s_end);
74	type typ_receiv is (r_wait,r_head,r_dlen,r_glen,r_start,r_end);
75	type typ_cmd is (cmdstart,cmdpost,cmdpostidle,cmdread,cmdlen,cmdglen,cmddata,cmdend,cmdtimeout);
76
77	signal etsnd1,etsnd2,etsnd3 : typ_send;
78	signal etrec:typ_receiv; --pour la machine à état de réception
79	signal etcmd :typ_cmd; --pour la machine à état de commande
80	--Inputs
81	signal PortIn : Typ_portio (1 to MAXPORT);
82	--Outputs
83	signal portOut : Typ_portio(1 to maxport);
84
85	signal data_in_en : std_logic_vector(MAXPORT downto 1) := (others => '0');
86	signal cmd_in_en : std_logic_vector(MAXPORT downto 1) := (others => '0');
87	signal data_out_en : std_logic_vector(MAXPORT downto 1) := (others => '0');
88	signal rdata_out_en : std_logic_vector(MAXPORT downto 1) := (others => '0');
89	signal rcount : naturel(1 to MAXPORT) ;
90
91	signal cdata_out_en : std_logic_vector(MAXPORT downto 1) := (others => '0');
92	signal clk : std_logic := '0';
93	signal reset : std_logic := '0';
94	signal din1,din2,din3,din4: std_logic_vector(MAXPORT downto 1):= (others => '0');
95	--signaux utiliser pour la mise à jour des MAE
96	signal sdestport,rdestport,rorigport:natural range 0 to 15;
97	signal csend1,csend2,csend3,csend4:natural;
98	signal sorigport :natural range 0 to 15:=1;
99
100
101	signal fifo_in_full : std_logic_vector(MAXPORT downto 1);
102	signal fifo_in_empty : std_logic_vector(MAXPORT downto 1);
103	signal data_available : std_logic_vector(MAXPORT downto 1);
104
105	-- Clock period definitions
106	constant clk_period : time := 10 ns;
107	-- autres signaux de simulation
108	-- ici nous mettons les signaux permettant de gérer le processus de simulation
109	signal time_out:std_logic_vector(8 downto 1);
110	signal header : std_logic_vector(7 downto 0);
111	signal tosend1,tosend2,tosend3,tosend4 : std_logic_vector(7 downto 0);
112
113	BEGIN
114
115	-- Instantiate the Unit Under Test (UUT)
116	uut: SWITCH_GEN generic map (MAXPORT) PORT MAP (
117	Port_In => PortIn,
118	Port_Out =>PortOut,
119
120	--signaux de contrôle de la lecture des ports
121	data_in_en => data_in_en,
122	cmd_in_en =>cmd_in_en,
123	data_out_en => data_out_en,
124	fifo_in_full => fifo_in_full,
125	fifo_in_empty => fifo_in_empty,
126	data_available => data_available,
127	clk => clk,
128	reset => reset
129	);
130	--Utilisation de la ROM pour envoyer des stimulis
131	--stimport: stimport5 port map (clk,reset,not (fifo_in_full(5)),din3(5),port5_in);
132	data_in_en<=din1 or din2 or din3 or din4;
133	data_out_en<=rdata_out_en or cdata_out_en;
134	-- Clock process definitions
135	clk_process :process
136	begin
137	clk <= '0';
138	wait for clk_period/2;
139	clk <= '1';
140	wait for clk_period/2;
141	end process;
142
143	init_process:process (reset)
144
145	variable i: natural range 0 to 15;
146	begin
147	if reset='1' then
148	for i in 1 to maxport
149	loop
150	--Portin(i)<=(others=>'0');
151	end loop ;
152	end if ;
153	end process init_process;
154	psend1:process(clk,reset)
155	--génération des paquets à partir du premier port
156	variable pactype :natural range 0 to 15;
157	variable origport,destport : natural range 0 to 15;
158	variable datalen,i,i_pair : natural range 0 to 255;
159
160
161
162	begin
163	if reset='1' then
164	etsnd1<=s_head;
165
166	else --reset ='0'
167	origport:=6;
168	if rising_edge(clk) then -- le process s'exécute sur chaque front
169	-- montant de l'horloge
170	case etsnd1 is
171	when s_head => -- construction et envoie de l'en-tête
172	pactype:=5;-- fonction put
173	destport:=6; -- le port de destination
174	datalen :=4;
175	header<=STD_LOGIC_VECTOR(to_unsigned(pactype,4)) & STD_LOGIC_VECTOR(to_unsigned(destport,4));
176	tosend1<=STD_LOGIC_VECTOR(to_unsigned(pactype,4)) & STD_LOGIC_VECTOR(to_unsigned(destport-1,4));
177	din1(origport)<='1'; -- en fait data_in_en(origport)
178	i:=1;i_pair:=i /2;
179	etsnd1<=s_len; -- passer à l'état suivant
180	--port1_in<=tosend1;
181	when s_len =>
182	--tosend1<=(STD_LOGIC_VECTOR(to_unsigned(datalen+2,8)));
183	tosend1<=STD_LOGIC_VECTOR(to_unsigned(pactype,4)) & STD_LOGIC_VECTOR(to_unsigned(destport-1,4));
184
185	din1(origport)<='1';
186
187	--port1_in<=tosend1; --copie directe sur le port
188	etsnd1<=s_len2;
189	when s_len2 =>
190	tosend1<=(STD_LOGIC_VECTOR(to_unsigned(datalen+2,8)));
191	din1(origport)<='1';
192
193	--port1_in<=tosend1; --copie directe sur le port
194	etsnd1<=s_data;
195	when s_data =>
196
197	if (fifo_in_full(origport)='0') then
198	din1(origport)<='1';
199	i_pair:=i_pair *2;
200	if i=i_pair then -- modulo
201	tosend1<=(STD_LOGIC_VECTOR(to_unsigned(i,8)));
202	--port1_in<="00001101"; --origport=1
203	else
204	--tosend1<="00001111";
205	tosend1<=(STD_LOGIC_VECTOR(to_unsigned(i,8)));
206	--port1_in<="00001111"; --origport=1
207	end if;
208	i:=i+1;i_pair:=i / 2;
209	if i>datalen then
210	etsnd1<=s_end;
211	din1(origport)<='0';
212	end if;
213	else
214	din1(origport)<='1';
215	end if;
216	when s_end =>
217	tosend1<="--------";
218	din1(origport)<='0';
219	if fifo_in_empty(origport)='1' then
220	etsnd1<=s_head;
221	else
222	etsnd1<=s_end;
223	end if;
224	end case;
225
226	end if;
227
228
229
230	end if; --reset='1'
231	end process psend1;
232
233	Portin(6)<=tosend1 when reset='0';
234	Portin(2)<=tosend2 when reset='0';
235	Portin(4)<=tosend3 when reset='0';
236	Portin(1)<=tosend4 when reset='0';
237	psend2:process(clk,reset)
238	--génération des paquets à partir du premier port
239	variable pactype :natural range 0 to 15;
240	variable origport,destport : natural range 0 to 15;
241	variable datalen,i,i_pair : natural range 0 to 255;
242
243
244
245	begin
246	if reset='1' then
247	etsnd2<=s_head;
248
249	else --reset ='0'
250	origport:=2;
251	if rising_edge(clk) then -- le process s'exécute sur chaque front
252	-- montant de l'horloge
253	case etsnd2 is
254	when s_head => -- construction et envoie de l'en-tête
255	pactype:=5;-- fonction put
256	destport:=2; -- le port de destination
257	datalen :=9;
258	header<=STD_LOGIC_VECTOR(to_unsigned(pactype,4)) & STD_LOGIC_VECTOR(to_unsigned(destport,4));
259	tosend2<=STD_LOGIC_VECTOR(to_unsigned(pactype,4)) & STD_LOGIC_VECTOR(to_unsigned(destport-1,4));
260	din2(origport)<='1';
261	i:=1;i_pair:=i /2;
262	etsnd2<=s_len; -- passer à l'état suivant
263
264	when s_len =>
265	--tosend2<=(STD_LOGIC_VECTOR(to_unsigned(datalen+2,8)));
266	tosend2<=STD_LOGIC_VECTOR(to_unsigned(pactype,4)) & STD_LOGIC_VECTOR(to_unsigned(destport-1,4));
267
268	din2(origport)<='1';
269
270	--port2_in<=tosend2; --copie directe sur le port
271	etsnd2<=s_len2;
272	when s_len2 =>
273	tosend2<=(STD_LOGIC_VECTOR(to_unsigned(datalen+2,8)));
274	din2(origport)<='1';
275
276	--port1_in<=tosend1; --copie directe sur le port
277	etsnd2<=s_data;
278	when s_data =>
279
280	if (fifo_in_full(origport)='0') then
281	din2(origport)<='1';
282	i_pair:=i_pair * 2;
283	if i=i_pair then -- modulo
284	--tosend2<="00000001";
285	tosend2<=(STD_LOGIC_VECTOR(to_unsigned(i,8)));
286	--port2_in<="00000001"; --origport=1
287	else
288	--tosend2<="00000010";
289	tosend2<=(STD_LOGIC_VECTOR(to_unsigned(i,8)));
290	--port2_in<="00000001"; --origport=1
291	end if;
292	i:=i+1;i_pair:=i / 2;
293	if i>datalen then
294	etsnd2<=s_end;
295	din2(origport)<='0';
296	else
297	din2(origport)<='1';
298	end if;
299	else
300	din2(origport)<='0';
301	end if;
302	when s_end =>
303	tosend2<="--------";
304	din2(origport)<='0';
305	if fifo_in_empty(origport)='1' then
306	etsnd2<=s_head;
307	else
308	etsnd2<=s_end;
309	end if;
310	end case;
311
312	end if;
313
314
315
316	end if; --reset='1'
317	end process psend2;
318
319	psend3:process(clk,reset)
320	--génération des paquets à partir du premier port
321	variable pactype :natural range 0 to 15;
322	variable origport,destport : natural range 0 to 15;
323	variable datalen,i,i_pair : natural range 0 to 255;
324
325
326
327	begin
328	if reset='1' then
329	etsnd3<=s_head;
330
331	else --reset ='0'
332	origport:=4; --attention à régler tosend3 =Portin(....) !!!!!!!
333	if rising_edge(clk) then -- le process s'exécute sur chaque front
334	-- montant de l'horloge
335	case etsnd3 is
336	when s_head => -- construction et envoie de l'en-tête
337	pactype:=5;-- fonction put
338	destport:=MAXPORT; -- le port de destination
339	datalen :=4;
340	--header<=STD_LOGIC_VECTOR(to_unsigned(pactype,4)) & STD_LOGIC_VECTOR(to_unsigned(destport,4));
341	tosend3<=STD_LOGIC_VECTOR(to_unsigned(pactype,4)) & STD_LOGIC_VECTOR(to_unsigned(destport-1,4));
342	din3(origport)<='1'; -- en fait data_in_en(origport)
343	i:=1;i_pair:=i /2;
344	etsnd3<=s_len; -- passer à l'état suivant
345	--port1_in<=tosend1;
346	when s_len =>
347	--tosend3<=(STD_LOGIC_VECTOR(to_unsigned(datalen+2,8)));
348	din3(origport)<='1';
349	tosend3<=STD_LOGIC_VECTOR(to_unsigned(pactype,4)) & STD_LOGIC_VECTOR(to_unsigned(destport-1,4));
350
351	--port1_in<=tosend1; --copie directe sur le port
352	etsnd3<=s_len2;
353	when s_len2 =>
354	tosend3<=(STD_LOGIC_VECTOR(to_unsigned(datalen+2,8)));
355	din3(origport)<='1';
356
357	--port1_in<=tosend1; --copie directe sur le port
358	etsnd3<=s_data;
359	when s_data =>
360
361	if (fifo_in_full(origport)='0') then
362	din3(origport)<='1';
363	i_pair:=i_pair * 2;
364	if i=i_pair then -- modulo
365	tosend3<=(STD_LOGIC_VECTOR(to_unsigned(i,8)));
366	--tosend3<="00001100";
367	--port1_in<="00001101"; --origport=1
368	else
369	tosend3<=(STD_LOGIC_VECTOR(to_unsigned(i,8)));
370	--tosend3<="00000110";
371	--port1_in<="00001111"; --origport=1
372	end if;
373	i:=i+1;i_pair:=i / 2;
374	if i>datalen then
375	din3(origport)<='0';
376	etsnd3<=s_end;
377	else
378	din3(origport)<='1';
379	end if;
380	else
381	din3(origport)<='0';
382	end if;
383	when s_end =>
384	tosend3<="--------";
385	din3(origport)<='0';
386	if fifo_in_empty(origport)='1' then
387	etsnd3<=s_head;
388	else
389	etsnd3<=s_end;
390	end if;
391	end case;
392
393	end if;
394
395	end if; --reset='1'
396	end process psend3;
397
398	preceiv:process(clk,reset)
399
400	variable origport,ptype : natural range 0 to 15;
401	variable datalen,dcount ,timeout:natural range 0 to 255;
402	variable destport : natural range 0 to 15:=1;
403	begin
404
405	if reset='1' then
406	etrec<=r_wait;
407	destport:=1;
408	timeout:=0;
409	elsif rising_edge(clk) then
410	case etrec is
411	when r_wait =>
412	if destport=0 then
413	destport:=1;
414	end if;
415	timeout:=0;
416	time_out(destport)<='0';
417	if data_available(destport)='1' and cmd_in_en(destport)='0' then
418	rdata_out_en(destport)<='1';
419	etrec<=r_head;
420	else
421	if destport>=MAXPORT then
422	destport:=1;
423	else
424	destport:=destport+1;
425	end if;
426	etrec<=r_wait;
427	end if;
428	when r_head =>
429
430	ptype:=to_integer(unsigned(portout(destport)(7 downto 4)));
431	origport:=to_integer(unsigned(portout(destport)(3 downto 0)));
432	rdata_out_en(destport)<='1';
433	if ptype=5 then
434	etrec<=r_Dlen; --identification de la signature d'en tête valide
435	else
436	etrec<=r_wait;
437	end if;
438
439
440
441
442
443	when r_Dlen => --positionnement du mot de longueur des données
444	if data_available(destport)='1' then
445
446	rdata_out_en(destport)<='1';
447	etrec<=r_glen;
448	timeout:=0;
449	else
450	timeout:=timeout+1;
451	if timeout>=30 then
452	time_out(destport)<='1';
453	etrec<=r_end; -- données pas prêtes
454	end if;
455
456
457	end if;
458	when r_glen => --lecture effective de la longueur des données
459	if data_available(destport)='1' then
460	datalen:=to_integer(unsigned(portout(destport)(7 downto 0)))-3;
461	rdata_out_en(destport)<='1';
462	etrec<=r_start;
463	dcount:=1; -- initialisation du compteur de reception
464	else
465	timeout:=timeout+1;
466	if timeout>=30 then
467	time_out(destport)<='1';
468	etrec<=r_end; -- données pas prêtes
469	end if;
470
471	end if;
472
473	when r_start =>
474	if data_available(destport)='1' then
475
476	dcount:=dcount+1;
477	assert true report "Donnée lue :"; --& string(unsigned(port4_out(7 downto 0)))
478	rdata_out_en(destport)<='1';
479
480	--severity note;
481	if datalen<=dcount then
482	etrec<=r_end;
483
484	elsif dcount=255 then --dépassement de la capacité
485	etrec<=r_end;
486	end if;
487	else
488	timeout:=timeout+1;
489	if timeout>=30 then
490	time_out(destport)<='1';
491	etrec<=r_end; -- données pas prêtes
492	end if;
493
494
495	end if;
496	when r_end =>
497
498
499	rdata_out_en(destport)<='0';
500	rcount(destport)<=rcount(destport)+1;
501	etrec<=r_wait;
502	if destport>=MAXPORT then -- provoquer le passage au prochain port de réception
503	destport:=1;
504	else
505	destport:=destport+1;
506	end if;
507	end case;
508	end if; --reset='1'
509	end process preceiv;
510
511	pcmd:process(clk,reset)
512
513	variable origport,destport,pid,mport : natural range 0 to 15;
514	variable datalen,dcount ,timeout:natural range 0 to 255;
515	begin
516
517	if reset='1' then
518	etcmd<=cmdstart;
519	destport:=0;
520	timeout:=0;
521	origport:=1;
522	sorigport<=origport;
523	elsif rising_edge(clk) then
524	case etcmd is
525	when cmdstart =>
526	if fifo_in_empty(origport)='1' then
527
528
529
530
531	etcmd<=cmdpost;
532	end if;
533	when cmdpost =>
534	if fifo_in_empty(origport)='1' then
535	---assignations de l'état
536	--din4(origport)<='1';
537	--tosend4<="00000001"; ---code pour getportid
538	etcmd<=cmdpostidle;
539	end if;
540	when cmdpostidle => --permet juste la prise en compte de la commande
541	if data_available(origport)='1' then
542	etcmd<=cmdread;
543	end if;
544	when cmdread =>
545
546
547	timeout:=0;
548	--time_out(destport)<='0';
549	if data_available(origport)='1' then
550	mport:=to_integer(unsigned(portout(origport)(7 downto 4)));
551	pid:=to_integer(unsigned(portout(origport)(3 downto 0)))+1;
552	--cdata_out_en(origport)<='1';
553	if pid=origport then --le port a été bien identifié
554	etcmd<=cmdglen; --
555	else
556	etcmd<=cmdtimeout;
557	end if;
558	else
559	-- if destport>=MAXPORT then
560	-- destport:=1;
561	-- else
562	-- destport:=destport+1;
563	-- end if;
564	etcmd<=cmdread;
565	end if;
566
567
568	when cmdlen => --positionnement du mot de longueur des données
569	if data_available(origport)='1' then
570
571	--cdata_out_en(origport)<='1';
572	etcmd<=cmdglen;
573	timeout:=0;
574	else
575	timeout:=timeout+1;
576	if timeout>=30 then
577	--time_out(destport)<='1';
578	etcmd<=cmdtimeout; -- données pas prêtes
579	end if;
580
581
582	end if;
583	when cmdglen => --lecture effective de la longueur des données
584	if data_available(origport)='1' then
585	datalen:=to_integer(unsigned(portout(origport)(7 downto 0)))-3;
586
587	etcmd<=cmddata;
588	dcount:=0; -- initialisation du compteur de reception
589	else
590	timeout:=timeout+1;
591	if timeout>=30 then
592	--time_out(destport)<='1';
593	etcmd<=cmdtimeout; -- données pas prêtes
594	end if;
595
596	end if;
597
598	when cmddata =>
599	if data_available(origport)='1' and timeout<30 then
600
601	--cdata_out_en(origport)<='1';
602	mport:=to_integer(unsigned(portout(origport)(7 downto 4)));
603	--attention les ports sont numérotés à partir de 0
604	pid:=to_integer(unsigned(portout(origport)(3 downto 0)))+1;
605
606	--severity note;
607	if Pid=origport then
608	etcmd<=cmdend;
609
610	else --dépassement de la capacité
611
612	timeout:=timeout+1;
613	if timeout>=30 then
614	etcmd<=cmdtimeout;
615	end if;
616
617	end if;
618	else
619
620	if timeout>=30 then
621	time_out(origport)<='1';
622	etcmd<=cmdtimeout; -- données pas prêtes
623	end if;
624	timeout:=timeout+1;
625
626	end if;
627	when cmdend =>
628
629
630	--cdata_out_en(origport)<='0';
631
632	-- if origport>=mport then -- provoquer le passage au prochain port de réception
633	-- origport:=1;
634	-- else
635	-- origport:=origport+1;
636	-- end if;
637	etcmd<=cmdstart;
638	--cmd_in_en(origport)<='0';
639	when cmdtimeout =>
640	etcmd<=cmdtimeout;
641	--cmd_in_en(origport)<='0';
642	etcmd<=cmdstart;
643	end case;
644	sorigport<=origport;
645	end if; --reset='1'
646
647	end process pcmd;
648
649	majetcmd:process (etcmd)
650	variable origport : natural:=1;-- =sorigport ;
651	begin
652	case etcmd is
653	when cmdstart =>
654
655	cmd_in_en(origport)<='1';
656
657	when cmdpost =>
658	din4(origport)<='1';
659	tosend4<="00000001"; ---code pour getportid
660	cmd_in_en(origport)<='1';
661	cdata_out_en(origport)<='0';
662	when cmdpostidle =>
663	din4(origport)<='0';
664	cdata_out_en(origport)<=data_available(origport);
665	cmd_in_en(origport)<='1';
666
667	when cmdread =>
668	din4(origport)<='0';
669	cdata_out_en(origport)<=data_available(origport);
670	cmd_in_en(origport)<='1';
671
672	when cmdlen \|cmdglen => --positionnement du mot de longueur des données
673
674	din4(origport)<='0';
675	cdata_out_en(origport)<=data_available(origport);
676	cmd_in_en(origport)<='1';
677
678	when cmddata =>
679
680	din4(origport)<='0';
681	cdata_out_en(origport)<=data_available(origport);
682	cmd_in_en(origport)<='1';
683
684
685	when cmdend =>
686
687	din4(origport)<='0';
688	cdata_out_en(origport)<='0';
689	cmd_in_en(origport)<='0';
690
691	when cmdtimeout =>
692	din4(origport)<='0';
693	cdata_out_en(origport)<='0';
694	cmd_in_en(origport)<='0';
695
696	end case;
697
698	end process majetcmd ;
699	-- Stimulus process
700	stim_proc: process
701	begin
702	-- hold reset state for 100 ns.
703	reset<='1';
704	wait for 1 ns;
705	reset<='1';
706	wait for clk_period*10;
707	reset<='0';
708	wait;
709	-- insert stimulus here
710
711
712
713
714	end process;
715
716	END;

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source: PROJECT_CORE_MPI/SWITCH_GEN/TRUNK/test_xbar_8x8.vhd @ 22

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