l2p_dma_master: add a comment

28a645b1 · Tristan Gingold · f6835b54 · 28a645b1
Commit 28a645b1 authored Nov 04, 2020 by Tristan Gingold
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l2p_dma_master.vhd hdl/rtl/l2p_dma_master.vhd +2 -0

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--- a/hdl/rtl/l2p_dma_master.vhd
+++ b/hdl/rtl/l2p_dma_master.vhd
@@ -305,8 +305,10 @@ begin
                l2p_fsm_dframe <= '0';
                data_fifo_rd   <= '0';
                if dma_total_len /= 0 then
+                  --  There a still data to transfer, continue.
                  l2p_dma_current_state <= L2P_SETUP;
                else
+                  --  No more data, done.
                  l2p_dma_current_state <= L2P_IDLE;
                  dma_ctrl_done_o       <= '1';
                end if;