Changeset 65 for PROJECT_CORE_MPI/SWITCH_GEN/BRANCHES/v0.03/SCHEDULER12_12.VHD

Timestamp:

Apr 22, 2013, 11:35:33 AM (11 years ago)

Author:

rolagamo

Message:

 

File:

• PROJECT_CORE_MPI/SWITCH_GEN/BRANCHES/v0.03/SCHEDULER12_12.VHD (modified) (2 diffs)

PROJECT_CORE_MPI/SWITCH_GEN/BRANCHES/v0.03/SCHEDULER12_12.VHD

@@ -55 +55 @@
  signal grant_latch : std_logic_vector(144 downto 1); 
  signal priority_rotation_en : std_logic; 
- signal Grant :  std_logic_vector(144 downto 1);
+ signal Grant,req_grant :  std_logic_vector(144 downto 1);
  begin
 
 --validation de la rotation de priorité lorsque aucun port n'emet 
- priority_rotation_en <= '1' when unsigned(priority_rotation) = 4095 else       '0'; 
+req_grant<=(request and grant_latch);
+ priority_rotation_en <= '1' when unsigned(req_grant) = 0 or unsigned(priority_rotation) = 4095 else    '0'; 
 --latch servant qui memorise le signal grant pendant a transmission 
 grant_latch_process : process(clk)
@@ -66 +67 @@
    if reset = '1' then 
                 grant_latch <= (others => '0'); 
-         elsif priority_rotation_en = '1' then 
+         elsif  priority_rotation_en = '1' or unsigned(Grant_latch)=0 then 
            grant_latch <= Grant; 
    end if; 
    end if; 
  end process; 
- port_grant <= Grant and grant_latch; 
+ port_grant <= grant_latch; 
  Grant(1)  <= Signal_grant(1)(1) or Signal_grant(13)(1); --  Grant(1,1)
 Grant(2)  <= Signal_grant(2)(2) or Signal_grant(14)(2); --  Grant(1,2)