diff --git a/litex_boards/platforms/sipeed_tang_mega_138k.py b/litex_boards/platforms/sipeed_tang_mega_138k.py
index b4e7b66..abc57e4 100644
--- a/litex_boards/platforms/sipeed_tang_mega_138k.py
+++ b/litex_boards/platforms/sipeed_tang_mega_138k.py
@@ -72,7 +72,90 @@ _io = [
 # Connectors ---------------------------------------------------------------------------------------
 
 _connectors = [
-        # TODO
+    ["J1",
+        # -------------------------------------------------------------
+        "---", # 0
+        #  GND  GND                                           (   1-10).
+        " ---- ---- AC26 AC24 AB26 AB24 AB25 AA23 AA24 AA22",
+        #                                          GND  GND   (  11-20).
+        " AA25  Y23  Y25  Y22  Y26  W24  W25  V24 ---- ----",
+        #                                                     (  21-30).
+        "  W26  W23  V26  V23  U26  U24  U25  L24  R26  Y20",
+        #                                                     (  31-40).
+        "  P26  W20  P19  W19  N19  V19  M20  V22  L20  U22",
+        #   5V   5V   5V   5V   5V   5V   5V   5V   5V   5V   (  41-50).
+        " ---- ---- ---- ---- ---- ---- ---- ---- ---- ----",
+        #   5V   5V   5V   5V   5V   5V  3V3   5V  3V3   5V   (  51-60).
+        " ---- ---- ---- ---- ---- ---- ---- ---- ---- ----",
+        #  GND  GND                      GND                  (  61-70).
+        " ---- ----  R15  N16  L20  E17 ----  E18  M21  N17",
+        #            GND                           GND  GND   (  71-80).
+        "  M22  M24 ----  M25  N23  N22  N24  N21 ---- ----",
+        #                                                     (  81-90).
+        "  N26  L22  M26  L23  C19  K22  D19  K23  K25  K21",
+        #                                                     ( 91-100).
+        "  K26  J21  J25  N18  J26  M19  H26  L19  G26  K18",
+        #  GND  GND                                           (101-110).
+        " ---- ----  M15  J24  L15  H24  K20  J23  J20  H23",
+        #                                          GND  GND   (111-120).
+        "  E26  D23  D26  D24  C26  C22  B26  C23 ---- ----",
+    ],
+    ["J2",
+        # -------------------------------------------------------------
+        "---", # 0
+        #  GND  GND VCCO VCCO VCCO VCCO  GND  GND             (   1-10).
+        " ---- ---- ---- ---- ---- ---- ---- ----  V21  P25",
+        #            GND                                      (  11-20).
+        "  U21  R25 ----  T25  U20  T24  T20  T23  U19  R23",
+        #                                     GND             (  21-30).
+        "  T19  P24  W18  P23  V18  P21  R18 ----  T18  Y21",
+        #                 GND                                 (  31-40).
+        "  T17  W21  U17 ----  U14  V17  V14  V16  T15  U16",
+        #                                GND  GND             (  41-50).
+        "  T14  U15   Y9 AB15  AB7   W9 ---- ----  R17  J15",
+        #            GND  GND                      GND  GND   (  51-60).
+        "  R16  J14 ---- ----  R11 AE16  R12   U4 ---- ----",
+        #                      GND  GND                       (  61-70).
+        " AD14 AA11 AC14 AB11 ---- ---- AB13 AC10 AA13 AD10",
+        #  GND  GND                      GND  GND             (  71-80).
+        " ---- ---- AF13  Ac8 AE13  AD8 ---- ---- AF11  AE9",
+        #            GND  GND                      GND  GND   (  81-90).
+        " AE11  AF9 ---- ---- AD12  AE7 AC12  AF7 ---- ----",
+        #                      GND  GND                       ( 91-100).
+        "   W4  AB1   V4  AC1 ---- ----  AA3  AE5   Y3  AF5",
+        #  GND  GND                      GND  GND             (101-110).
+        " ---- ----   W3  AE3   V3  AF3 ---- ----  AA2  AE2",
+        #            GND  GND                      GND  GND   (111-120).
+        "   Y2  AF2 ---- ----   W1  AD1   V1  AE1 ---- ----",
+    ],
+    ["J3",
+        # -------------------------------------------------------------
+        "---", # 0
+        #  GND  GND                           GND             (   1-10).
+        " ---- ----  B25  A24  A25  A23  C24 ---- B24   H22",
+        #                                     GND  GND        (  11-20).
+        "  E25  H21  D25  F20  G24  G19  F24 ---- ----  F19",
+        #                                                     (  21-30).
+        "  E22  F18  H17  M17  F23  M16  E23  J16  B22  K15",
+        #       GND                                           (  31-40).
+        "  A22 ----  E21  F22  D21  G22  E20  G21  D20  G20",
+        #  GND  GND                                           (  41-50).
+        " ---- ----  D18  H19  C18  J19  C17  F25  B17  G25",
+        #       GND                                           (  51-60).
+        "  E16 ----  D16  H18  G17  J18  F17  K17  L17  K16",
+        #            GND                                      (  61-70).
+        "  L18  F15 ----  G15  H14  G16  H15  H16  C21  L14",
+        #                 GND            GND            GND   (  71-80).
+        "  B21  M14  B20 ----  A20  P11 ----  N12  B19 ----",
+        #       TCK  GND  TDI       TDO       TMS  GND  GND   (  81-90).
+        "  A19  H12 ----  H10  A17  J10  A18  H11 ---- ----",
+        #                      GND  GND                       ( 91-100).
+        "  F11  F13  E11  E13 ---- ----  D10  C12  C10  D12",
+        #  GND  GND                      GND  GND             (101-110).
+        " ---- ----   D8  C14   C8  D14 ---- ----   B9  A13",
+        #            GND  GND                      GND  GND   (111-120).
+        "   A9  B13 ---- ----   B7  P11   A7  N12 ---- ----",
+    ],
 ]
 
 # Platform -----------------------------------------------------------------------------------------