URL
https://opencores.org/ocsvn/udp_ip_stack/udp_ip_stack/trunk
Subversion Repositories udp_ip_stack
Compare Revisions
- This comparison shows the changes necessary to convert path
/udp_ip_stack/trunk/rtl/vhdl/ml605
- from Rev 4 to Rev 6
- ↔ Reverse comparison
Rev 4 → Rev 6
/UDP_integration_example.vhd
141,6 → 141,7
signal set_tx_started : set_clr_type; |
signal set_tx_fin : set_clr_type; |
signal set_udp_rx_start_reg : set_clr_type; |
signal first_byte_rx : STD_LOGIC_VECTOR(7 downto 0); |
|
begin |
|
171,17 → 172,18
|
end process; |
|
-- AUTO TX process - on receipt of any UDP pkt, send a response |
-- AUTO TX process - on receipt of any UDP pkt, send a response, |
|
-- TX response process - COMB |
tx_proc_combinatorial: process( |
-- inputs |
udp_rx_start_int, udp_tx_data_out_ready_int, udp_tx_int.data.data_out_valid, PBTX, reset_leds, |
udp_rx_start_int, udp_tx_data_out_ready_int, udp_tx_int.data.data_out_valid, |
udp_rx_int, PBTX, reset_leds, |
-- state |
state, count, tx_hdr, tx_start_reg, tx_started_reg, tx_fin_reg, udp_rx_start_reg, |
-- controls |
next_state, set_state, set_count, set_hdr, set_tx_start, set_last, |
set_tx_started, set_tx_fin, set_udp_rx_start_reg |
set_tx_started, set_tx_fin, set_udp_rx_start_reg, first_byte_rx |
) |
begin |
-- set output_followers |
199,6 → 201,7
set_tx_started <= HOLD; |
set_tx_fin <= HOLD; |
set_udp_rx_start_reg <= HOLD; |
first_byte_rx <= (others => '0'); |
|
-- FSM |
case state is |
207,6 → 210,11
udp_tx_int.data.data_out <= (others => '0'); |
udp_tx_int.data.data_out_valid <= '0'; |
if udp_rx_start_int = '1' or PBTX = '1' then |
if udp_rx_start_int = '1' then |
first_byte_rx <= udp_rx_int.data.data_in; |
else |
first_byte_rx <= x"00"; |
end if; |
set_udp_rx_start_reg <= SET; |
set_tx_started <= SET; |
set_hdr <= '1'; |
278,7 → 286,12
|
-- set tx hdr |
if set_hdr = '1' then |
tx_hdr.dst_ip_addr <= udp_rx_int.hdr.src_ip_addr; |
-- if the first byte of the rx pkt is 'B' then send to broadcast, otherwise send to reply IP |
if first_byte_rx = x"42" then |
tx_hdr.dst_ip_addr <= IP_BC_ADDR; |
else |
tx_hdr.dst_ip_addr <= udp_rx_int.hdr.src_ip_addr; |
end if; |
tx_hdr.dst_port <= udp_rx_int.hdr.src_port; |
tx_hdr.src_port <= udp_rx_int.hdr.dst_port; |
tx_hdr.data_length <= x"0004"; |