From ecd3c5146549e86a371d0ce25f7eb24e94e94754 Mon Sep 17 00:00:00 2001
From: leo <leo.lemaire007@orange.fr>
Date: Mon, 25 Sep 2023 17:34:48 +0200
Subject: [PATCH] decoder

---
 ReceptionTrame_lib/receptionTrame_op.vhd | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/ReceptionTrame_lib/receptionTrame_op.vhd b/ReceptionTrame_lib/receptionTrame_op.vhd
index 9ca0d77..b1be59e 100644
--- a/ReceptionTrame_lib/receptionTrame_op.vhd
+++ b/ReceptionTrame_lib/receptionTrame_op.vhd
@@ -40,6 +40,8 @@ END receptionTrame_op;
 
 ARCHITECTURE arch OF receptionTrame_op IS
 SIGNAL LinSynchro_int : std_logic;
+SIGNAL octetRecu_int : std_logic_vector(7 downto 0);
+SIGNAL nbDataField_INIT : integer;
 
 COMPONENT D_FF
   PORT(
@@ -65,6 +67,7 @@ END COMPONENT;
 BEGIN
 
 LinSynchro <= LinSynchro_int;
+octetRecu <= octetRecu_int;
 
 -- Lin sync D-FF, with asynchronous reset
 Lin_in_sync : D_FF
@@ -85,7 +88,16 @@ Lin_para : shift_register
     H_EN => octetRecu_EN,
     nRst => nCLR,
     D => LinSynchro_int,
-    Q => octetRecu
+    Q => octetRecu_int
   );
 
+-- Decoder
+WITH octetRecu_int(5 downto 4) SELECT
+  nbDataField_INIT <= 
+    1 when "00",
+    1 when "01",
+    3 when "10",
+    7 when "11",
+    0 when others;
+
 END ARCHITECTURE arch;
\ No newline at end of file