Transmit when r_TxEn=0
Information:
Type :: BUG
Status :: OPENED
Assigned to ::
Description:
After a list of frames is transmitted, all BDs are marked as not ready and the MAC is disabled (r_TxEn=0), a frame is transmitted when the TX BDs are reinitialised (ready=1).
This is because the "TxEn_needed" signal stays '1' when r_TxEn is set to '0'.
I suggest to modify the process the following way (add " | ~r_TxEn" in the second "else if"):
always @ (posedge WB_CLK_I or posedge Reset)
begin
if(Reset)
TxEn_needed <=#Tp 1'b0;
else
if(~TxBDReady & r_TxEn & WbEn & ~WbEn_q)
TxEn_needed <=#Tp 1'b1;
else
if((TxPointerRead & TxEn & TxEn_q) | ~r_TxEn)
TxEn_needed <=#Tp 1'b0;
end
What do you think about this?
best regards
Christoph Glattfelder
Zurich University of Applied Sciences Winterthur, Switzerland
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