2016-03-16[2.0A] 1. Add default password for telnet console. 2. Fix bugs about handling telnet sub-option and password. 2016-02-18[1.4B] 1. Change DNS source port(53 to a random value between 4096 ~ 65535) 2. Fix minor bug about TCP Server/Client mode 3. Change hash algorithm for certificate signature (MD5 > SHA1) 4. Support TELCOM in RS-422/485 2014-12-29[1.4A] 1. Apply new CPU version 2. Fix bugs about DHCP, DNS, SSL and RFC2217 3. Improve RFC2217 and DDNS function 4. Support separator function 5. Remove disable FIFO option 6. Support AT+PLS command 2011-07-26 [1.3C] 1. Serial Manager Protocol bug fix 2. comment debugging flag related to PPP 3. PPPoE align bug fix at debugging code 4. add option for disable fifo 5. telnet password mismatch bug fix 6. U2S water mark bug fix 7. decrease sio buffer to 3584 from 3840 to avoid sio_dump & iptrap out of memory 8. UDP zero checksum bug fix 9. ATC ESC character bug fix 10. parse DDNS response contents 11. DTR/DSR port bug fix 12. telnet No Operation command bug fix 13. add AT+PPNG(ping test) command 14. decrease sio_rx_fifo size to 5ms length from 100ms length 15. add ddns state field to ezManager status 16. add mac address field to ezManager status 2009-07-07 [1.3A] 1. dynamic TCP session management support 2. modified - tcp.c winq.c tty.c iptrap.c lsh.c scfg.c init.c 3. add 'length field' to env write len 4. CN0/CN1 led bug fix at U2S mode 5. add lsh sc(session control) command 6. limit tcp mss to MIN(TCP_LOCAL_MSS, ppp_send_mru, ppp_recv_mru) 7. add arp table field to ezManager status 8. decrease sio buffer to 3840 from 4096 to avoid ddns out of memory 9. ATC CN0/CN1 led bug fix 10. DNS peer_ip (ATC mode) bug fix 11. add AT+PSE(send escape) command 12. mac_id support 2009-03-04 [1.2H] 1. UDP(at U2S mode) multicast support 2. duplicate exponential retransmit timer bug fix 3. reset rto_count in func tcp_stop_timers() 4. telcom | break support 5. telcom | reply SET_CONTROL request 6. telcom | avoid enabling hardware flow control 7. U2S dynamic peer_ip/port update 8. telcom | RTS collision bug fix 9. telnet sio dump support (add sd command) 10. rename sio0/sio1 to com1/com2 2009-01-20 [1.2G] 1.decrease rx idle time to 10bit long 2.IP change missing TCP name bug fix 3.avoid connection to zero IP (0.0.0.0) 4.ata hook bug fix 5.lsh passwd buf overflow bug fix 2008-12-01 [1.2F] 1.add atc command PPID & PPPW 2.reload env if crc test is failed when scfg write 3.atcmd auto_ns on/off support 4.blink led (rx/tx) if fatal env fault found 5.emac | reset rx_bds if RX buffer is full 2008-11-13 [1.2E] 1.freeze link led blink 2.DTR/RTS update on telcom notify 3.atcmd host name lookup support (+pnip,+prhn) 4.TCP no delay support 5.TX delay support (up to 25 character time) 6.drop late dhcp response from coexist dhcp server 7.ezManager | TCP session management support 8.ezSerialConfig support / ISP operation change same as H80 9.add WDT reset code at emac wait loop to avoid H21 mulfunction 10.telcom 0xff bug fix 11.disable dhcp unicast 12.at dial hook bug fix 13.avoid at+pdc/ppe both enabled 2008-08-05 [1.2D] 1. boot up checking H21 identification pin 2. fix telnet login message 2008-06-30 [1.2C] 1. IP Change Trap - UDP bug fix 2. SSL/SSH telnet bug fix 3. modify SSL/SSH command lock 4. sio mark/space support 5. duplicate local port bug fix 2008-06-10 [1.2B] 1. modify ddns update period 2008-05-29 [1.2A] 1. SSL/SSH support 2. disable UDP dest_ip comparison when ezl_local_ip is zero 3. TCP MSS bug fix 4. U2S net_tx, net_rx update bug fix 5. add ICMP frag needed message processing routine 6. duplicate peer name bug fix 7. expand mfa free size to avoid lsh_printf malloc fail 8. optimization option change -O2 to -Os (reduce code size near 10k) 2008-01-16 [1.1G] 1. tcp urg pointer bug fix 2. dhcpc sends broadcast if server is not in subnet 2008-01-15 [1.1F] 1. dynamic IP telnet support 2. lsh series command bug fix 3. add arp refresh code in lookup.c iptrap.c u2s.c 2007-12-26 [1.1E] 1. ip change trap support 2. modify emac_init() for new PHY LAN8700 3. set PHY s/w-reset timeout to 500ms 2007-11-16 [1.1D] 1. is_ip_broadcast() 0xe0 comparison bug fix 2. is_ip_broadcast() broadcast detection bug fix 2007-09-15 [1.1C] 1. add CTS & PDC_PTSR monitoring loop 2007-09-12 [1.1B] 1. Dynamic DNS(DDNS) support. 2. DNS stat->end comparison bug fix. 3. PPP down bug fix. 2007-08-22 [1.1A] 1. seq_gap bug fix. 2. emac TBQP bug fix. 3. reply none zero length keep-alive. 4. reset processor after ezcfg write. 2007-08-10 [1.0E] 1. RTS vibration bug fix. 2. intr pending bug fix by setting AIC protect mode. 3. receive time-out frame loss bug fix. 4. PDC start_tx atomic bug fix. 2007-07-24 [1.0D] 1. Telnet COM port control option support. 2007-07-03 [1.0B] 1. Expand FIFO size. 2. UART 1.5/2 stop bits bug fix. 3. sio_rx_fifo_max bug fix. 2007-04-12 [1.0A] 1. Initial touch.