Changeset 35 for PROJECT_CORE_MPI/CORE_MPI/BRANCHES/v0.01/DMA_ARBITER.vhd

Timestamp:

Dec 3, 2012, 2:57:30 PM (12 years ago)

Author:

rolagamo

Message:

Version stable pour les tests

File:

• PROJECT_CORE_MPI/CORE_MPI/BRANCHES/v0.01/DMA_ARBITER.vhd (modified) (2 diffs)

PROJECT_CORE_MPI/CORE_MPI/BRANCHES/v0.01/DMA_ARBITER.vhd

@@ -129 +129 @@
                                                                         dma_wr_logic <="1000";
                                                                         
-                                when others => tmp_wr:= (dma_wr_request and prio_wr) ;
+                                when others => 
+                                                                        
+                                                                        tmp_wr:= (dma_wr_request and prio_wr) ;
                                                                         dma_wr_logic <=tmp_wr;
+                                                                        
                                                                         req_wr:= not(All_zeros(tmp_wr)); 
                                                                         dma_req_wr<= not(All_zeros(tmp_wr));                                    
                                                                         -- la priorité est circulaire et décale à chaque coup d'horloge
-                                                                        prio_wr<=rol_vec(prio_wr); 
-                                                                        if pri_wr=3 then
-                                                                                pri_wr<=0;
-                                                                                Prio_wr<="0001";
-                                                                        else
-                                                                                pri_wr<=pri_wr+1;
-                                                                        end if;
+                                                                        if req_wr='0' then
+                                                                                prio_wr<=rol_vec(prio_wr); 
+                                                                                if pri_wr=3 then
+                                                                                        pri_wr<=0;
+                                                                                        Prio_wr<="0001";
+                                                                                else
+                                                                                        pri_wr<=pri_wr+1;
+                                                                                end if;
+                                                                 end if;
                                 end case;
                                         
@@ -178 +183 @@
                                                                         
                                                                 -- la priorité est circulaire et décale à chaque coup d'horloge
-                                                                        prio_rd<=rol_vec(prio_rd);
-                                                                        if pri_rd =3 then
-                                                                                pri_rd<=0;
-                                                                                prio_rd<="0001";
-                                                                        else
-                                                                                
-                                                                                pri_rd<=pri_rd+1;
+                                                                        if req_rd='0' then
+                                                                                prio_rd<=rol_vec(prio_rd);
+                                                                                if pri_rd =3 then
+                                                                                        pri_rd<=0;
+                                                                                        prio_rd<="0001";
+                                                                                else
+                                                                                        
+                                                                                        pri_rd<=pri_rd+1;
+                                                                                end if;
                                                                         end if;
                                 end case;