Fix Network_TX_transmitPassthroughPacket to drop the FCS word.

1 files changed, 7 insertions, 0 deletions

diff --git a/libs/Network/tx.c b/libs/Network/tx.c
index 4ab1cb6..7ac9c28 100644
--- a/libs/Network/tx.c
+++ b/libs/Network/tx.c
@@ -432,6 +432,9 @@ void Network_TX_transmitPassthroughPacket(uint32_t length)
         return;
     }
 
+    // Drop the FCS word. It will be generated by hardware.
+    length -= 4;
+
     int32_t tail;
     int32_t first = tail = Network_TX_allocateBlock();
     int32_t next_block = -1;
@@ -470,4 +473,8 @@ void Network_TX_transmitPassthroughPacket(uint32_t length)
     doorbell.bits.Length = total_blocks;
 
     APE.TxToNetDoorbellFunc0 = doorbell;
+
+    // Read last RX word (FCS) to clear the buffer
+    uint32_t data = APE_PERI.BmcToNcReadBuffer.r32;
+    (void)data;
 }