'----------------------------------------------------------------------------------
' Embedded UDP&WebServer - Atmega32 and RTL8019AS - Embedded UDP&WebServer
'----------------------------------------------------------------------------------
'
' Version 1 - April 1 2005 - Ben Zijlstra - Netherlands - https://benshobbycorner.nl/bzijlstra
$crystal = 7372800
$regfile = "M32def.dat"
$baud = 57600
Declare Sub Write_rtl8019as(byval Regaddr As Byte , Byval Regdata As Byte)
Declare Sub Read_rtl8019as(byval Regaddr As Byte)
Declare Sub Init_rtl8019as
'Declare Sub Showregs
Declare Sub Getpacket
Declare Sub Overrun
Declare Sub Arp
Declare Sub Icmp
Declare Sub Icmp_checksum
Declare Sub Tcp
Declare Sub Write_dest_mac
Declare Sub Packetshape
Declare Sub Echopacket
Declare Sub Setipaddrs
Declare Sub Ip_header_checksum
Declare Sub Udp
Declare Sub Udp_checksum
'
Declare Sub General_part_checksum(byval Val1 As Byte , Byval Val2 As Word)
'
'
Declare Sub Lcd_init
Declare Sub Lcd_char(byval Lcd_c As Byte)
Declare Sub Lcd_txt
Declare Sub Lcdhome ' CLS/Home
Declare Sub Firstline ' goto 0/0 of LCD
Declare Sub Secondline
Declare Sub Http
Declare Sub Tcp_checksum
Declare Sub Send_tcp_packet
Declare Sub Setup_packet
Declare Sub Assemble_ack
Declare Sub Tcpseqtomyseq
Declare Sub Relayon(byval X As Byte)
Declare Sub Relayoff(byval X As Byte)
Declare Sub Status
Dim Myip(4) As Byte At &H64
Dim My_ip As Long At &H64 Overlay
Dim Client_seqnum As Long At &H8E
Dim Client_seqnum0 As Byte At &H8E Overlay
Dim Client_seqnum1 As Byte At &H8F Overlay
Dim Client_seqnum2 As Byte At &H90 Overlay
Dim Client_seqnum3 As Byte At &H91 Overlay
Dim Incoming_ack As Long At &H92
Dim Incoming_ack0 As Byte At &H92 Overlay
Dim Incoming_ack1 As Byte At &H93 Overlay
Dim Incoming_ack2 As Byte At &H94 Overlay
Dim Incoming_ack3 As Byte At &H95 Overlay
Dim My_seqnum As Long At &HB7
Dim My_seqnum0 As Byte At &HB7 Overlay
Dim My_seqnum1 As Byte At &HB8 Overlay
Dim My_seqnum2 As Byte At &HB9 Overlay
Dim My_seqnum3 As Byte At &HBA Overlay
'
Dim Tempword As Word At &H60
Dim Tempwordh As Byte At &H61 Overlay
Dim Tempwordl As Byte At &H60 Overlay
Dim Val1 As Byte
Dim Val2 As Word ' up to 65535 characters
Dim Val3 As Byte
Dim Val4 As Byte
Dim Regaddr As Byte
Dim Regdata As Byte
'Ethernet header layout
Dim Byte_read As Byte
Dim Hulp1 As Byte
Dim Mymac(6) As Byte
Dim I As Integer
Dim Rxlen As Word
Dim Hulp2 As Word
Dim Hulp3 As Word
Dim Hulp4 As Byte
Dim Data_l As Byte
Dim Data_h As Byte
'RTL8019AS
Dim Txstart As Byte
Dim Txlen As Word
Dim I_header_length As Word
Dim I_odd As Byte
Dim I_chksum32 As Long
Dim Hulp6 As Word At &HAF
Dim Hulp6h As Byte At &HB0 Overlay
Dim Hulp6l As Byte At &HAF Overlay
Dim I_x As Word
Dim I_checksum16 As Word
Dim I_value16 As Word At &HB1
Dim I_value16h As Byte At &HB2 Overlay
Dim I_value16l As Byte At &HB1 Overlay
Dim Result16 As Word At &HB5
Dim Result16h As Byte At &HB6 Overlay
Dim Result16l As Byte At &HB5 Overlay
'variables with overlays
Dim Pageheader(4) As Byte At &HAB
Dim T_enetpacketlenl As Byte At &HAD Overlay
Dim T_enetpacketlenh As Byte At &HAE Overlay
Dim Resend As Byte
Dim T As Byte
Dim Packet(1500) As Byte At &HC0
'Ethernet packet destination
Dim T_enetpacketdest0 As Byte At &HC0 Overlay
Dim T_enetpacketdest1 As Byte At &HC1 Overlay
Dim T_enetpacketdest2 As Byte At &HC2 Overlay
Dim T_enetpacketdest3 As Byte At &HC3 Overlay
Dim T_enetpacketdest4 As Byte At &HC4 Overlay
Dim T_enetpacketdest5 As Byte At &HC5 Overlay
'Ethernet packet source
Dim T_enetpacketsrc0 As Byte At &HC6 Overlay
Dim T_enetpacketsrc1 As Byte At &HC7 Overlay
Dim T_enetpacketsrc2 As Byte At &HC8 Overlay
Dim T_enetpacketsrc3 As Byte At &HC9 Overlay
Dim T_enetpacketsrc4 As Byte At &HCA Overlay
Dim T_enetpacketsrc5 As Byte At &HCB Overlay
'Ethernet packet type
Dim T_enetpackettype As Word At &HCC Overlay
Dim T_arp_hwtype1 As Byte At &HCF Overlay
'Arp
Dim T_arp_prttype1 As Byte At &HD1 Overlay
Dim T_arp_hwlen As Byte At &HD2 Overlay
Dim T_arp_prlen As Byte At &HD3 Overlay
Dim T_arp_op1 As Byte At &HD5 Overlay
'arp source ip address
Dim T_arp_sipaddr0 As Byte At &HDC Overlay
Dim T_arp_sipaddr1 As Byte At &HDD Overlay
Dim T_arp_sipaddr2 As Byte At &HDE Overlay
Dim T_arp_sipaddr3 As Byte At &HDF Overlay
'arp target IP address
Dim T_arp_tipaddr As Long At &HE6 Overlay
'IP header layout IP version and header length
Dim T_ip_vers_len As Byte At &HCE Overlay
'packet length
Dim T_ip_pktlen0 As Byte At &HD0 Overlay
Dim T_ip_pktlen1 As Byte At &HD1 Overlay
'protocol (ICMP=1, TCP=6, UDP=11)
Dim T_ip_proto As Byte At &HD7 Overlay
'header checksum
Dim T_ip_hdr_cksum0 As Byte At &HD8 Overlay
Dim T_ip_hdr_cksum1 As Byte At &HD9 Overlay
Dim T_ip_hdr_cksum As Word At &HD8 Overlay
'IP address of source
Dim T_ip_srcaddr0 As Byte At &HDA Overlay
Dim T_ip_srcaddr1 As Byte At &HDB Overlay
Dim T_ip_srcaddr2 As Byte At &HDC Overlay
Dim T_ip_srcaddr3 As Byte At &HDD Overlay
Dim T_ip_srcaddr As Long At &HDA Overlay
'IP address of destination
Dim T_ip_destaddr0 As Byte At &HDE Overlay
Dim T_ip_destaddr1 As Byte At &HDF Overlay
Dim T_ip_destaddr2 As Byte At &HE0 Overlay
Dim T_ip_destaddr3 As Byte At &HE1 Overlay
Dim T_ip_destaddr As Long At &HDE Overlay
Dim T_icmp_type As Byte At &HE2 Overlay
Dim T_icmp_code As Byte At &HE3 Overlay
Dim T_icmp_cksum0 As Byte At &HE4 Overlay
Dim T_icmp_cksum1 As Byte At &HE5 Overlay
Dim T_icmp_cksum As Word At &HE4 Overlay
Dim Tcp_srcporth As Byte At &HE2 Overlay
Dim Tcp_srcportl As Byte At &HE3 Overlay
Dim Tcp_destporth As Byte At &HE4 Overlay
Dim Tcp_destportl As Byte At &HE5 Overlay
Dim Tcp_seqnum3 As Byte At &HE6 Overlay
Dim Tcp_seqnum2 As Byte At &HE7 Overlay
Dim Tcp_seqnum1 As Byte At &HE8 Overlay
Dim Tcp_seqnum0 As Byte At &HE9 Overlay
Dim Tcp_acknum3 As Byte At &HEA Overlay
Dim Tcp_acknum2 As Byte At &HEB Overlay
Dim Tcp_acknum1 As Byte At &HEC Overlay
Dim Tcp_acknum0 As Byte At &HED Overlay
Dim Tcp_hdr As Byte At &HEE Overlay
Dim Tcp_flags As Byte At &HEF Overlay
Dim Tcp_cksumh As Byte At &HF2 Overlay
Dim Tcp_cksuml As Byte At &HF3 Overlay
Dim Tcp_cksum As Word At &HF2 Overlay
'UDP header
Dim T_udp_srcport0 As Byte At &HE2 Overlay
Dim T_udp_srcport1 As Byte At &HE3 Overlay
Dim T_udp_destport0 As Byte At &HE4 Overlay
Dim T_udp_destport1 As Byte At &HE5 Overlay
Dim T_udp_destport As Word At &HE4 Overlay
Dim T_udp_len0 As Byte At &HE6 Overlay
Dim T_udp_len1 As Byte At &HE7 Overlay
Dim T_udp_chksum0 As Byte At &HE8 Overlay
Dim T_udp_chksum1 As Byte At &HE9 Overlay
Dim T_udp_data As Byte At &HEA Overlay
'LCD variables
Dim Lcd_t As String * 40
Dim Lcd_tempstr As String * 1
Dim Lcd_temp As Byte
Dim Lcd_x As Byte
Dim Lcd_hulp As Byte
Dim Lcd_h As Byte
Dim Lcdpresent As Byte
Dim Tcp_fin As Bit
Dim Tcp_syn As Bit
Dim Tcp_rst As Bit
Dim Tcp_psh As Bit
Dim Tcp_ack As Bit
Dim Tcp_urg As Bit
Dim Tcpdatalen_in As Word
Dim Tcpdatalen_out As Word
Dim Ip_packet_len As Word
Dim Flags As Byte
Dim Msg_temp As String * 55
Dim Y As Word
Dim Tempstring1 As String * 1
Dim Expected_ack As Long
Dim Triggerstr As String * 20
Dim Tempstring As String * 10
Dim Portpntr As Byte At &HEA Overlay
Dim Portval As String * 4 At &HEB Overlay
Dim Relaypntr As Byte At &HEF Overlay
Dim Relval As String * 4 At &HF0 Overlay
'Dim Temppntr As Byte At &HF4 Overlay
'Dim Tempval As String * 5 At &HF5 Overlay
Dim Relaystatus As Byte
'idle time
Dim Idletime As Long
Const Debug = 0 ' put 1 for debug, 0 for no debug
Const Rstport = &H18
Const Isr = &H07
Const Msg_initfail = "Init failed"
Const Cr = &H00
Const Dcrval = &H58
Const Dcr = &H0E
Const Rbcr0 = &H0A
Const Rbcr1 = &H0B
Const Rcr = &H0C
Const Tpsr = &H04
Const Txtstart = &H40
Const Tcr = &H0D
Const Pstart = &H01
Const Rxstart = &H46
Const Bnry = &H03
Const Pstop = &H02
Const Rxstop = &H60
Const Curr = &H07
Const Imr = &H0F
Const Imrval = &H11
Const Tcrval = &H00
Const Rdmaport = &H10
Const Rsar0 = &H08
Const Rsar1 = &H09
Const Tbcr0 = &H05
Const Tbcr1 = &H06
'IP protocol types
'icmp
Const Prot_icmp = &H01
'tcp
Const Prot_tcp = &H06
'udp
Const Prot_udp = &H11
Const Synflag = 0
Const Finflag = 1
'LCD
Const Rs = 4
Const E = 7
Const Pcf8574 = &H40
Const Triggerstring = "SEND INFORMATION NOW"
'RTL8019AS ISR Register definitions
Const Rdc = &H40
Config Int0 = Rising
'I2c
Config Scl = Portc.0
Config Sda = Portc.1
Lcdpresent = 1
Mymac(1) = &H00
Mymac(2) = &H10
Mymac(3) = &H20
Mymac(4) = &H30
Mymac(5) = &H40
Mymac(6) = &H50
Myip(1) = 192
Myip(2) = 168
Myip(3) = 0
Myip(4) = 100
#if Debug = 1
Print "Hello world"
#endif
Databus Alias Porta
_databus Alias Pina
Rtldata Alias Porta
Databus_ddr Alias Ddra
Addrbus Alias Portb
Addrbus_ddr Alias Ddrb
Resetport Alias Portd
Eeprom Alias Portd
Ior_pin Alias Portd.6
Iow_pin Alias Portd.7
Resetport_ddr Alias Ddrd
Inputport1 Alias Pinc
Inputport2 Alias Portc
Latch Alias Portd.3
Resetport_ddr = &HF8 ' leave RXD and TXD
Main:
Reset Latch
Databus_ddr = &HFF
Databus = 0 ' put zero's on relays-port
Set Latch
Reset Latch
Relaystatus = 0 ' put zero's in the relaystatus byte
Call Lcd_init
Lcd_t = "VA3TO/EIO-board"
Call Lcd_txt
Call Secondline
Lcd_t = "Tutorial"
Call Lcd_txt
Call Init_rtl8019as
'Call Showregs
Enable Interrupts
Enable Int0
On Int0 Rtl8019as_interrupt
'start the NIC
Call Write_rtl8019as(cr , &H22)
Do
Loop
End
' Routine to handle an interrupt on the RTL8019AS
'
Rtl8019as_interrupt:
#if Debug = 1
Print "Interrupt from RTL8019as"
#endif
Disable Int0
'read the interrupt status register
Call Read_rtl8019as(isr)
'if the receive buffer has been overrun
If Byte_read.4 = 1 Then
Call Overrun
End If
'if the receive buffer holds a good packet
If Byte_read.0 = 1 Then
Call Getpacket
End If
'make sure the receive buffer ring is empty. If BNRY = CURR, the buffer is empty
Call Read_rtl8019as(bnry)
Data_l = Byte_read
Call Write_rtl8019as(cr , &H62)
Call Read_rtl8019as(curr)
Data_h = Byte_read
Call Write_rtl8019as(cr , &H22)
'buffer is not empty, get next packet
If Data_l <> Data_h Then
Call Getpacket
End If
'reset the interrupts bits
Call Write_rtl8019as(isr , &HFF)
Call Write_rtl8019as(cr , &H22)
Enable Int0
Return
' Routine to Write to NIC Control register
'
Sub Write_rtl8019as(regaddr , Regdata)
Addrbus = Regaddr
Databus = Regdata
Databus_ddr = &HFF
nop
Reset Iow_pin
nop
Set Iow_pin
nop
Databus_ddr = &H00
Databus = &HFF
End Sub
' Routine to read from NIC Control register
'
Sub Read_rtl8019as(regaddr)
Databus_ddr = &H00
Databus = &HFF
Addrbus = Regaddr
Reset Ior_pin
nop
Byte_read = Pina
nop
Set Ior_pin
nop
End Sub
' Routine to initialise the RTL8019AS ethernetchip
'
Sub Init_rtl8019as
Databus_ddr = &H00
Databus = &HFF
Addrbus_ddr = &HFF
Addrbus = &H00
Resetport_ddr = &HF8
Reset Eeprom.5
Set Iow_pin
Set Ior_pin
Set Resetport.4
Waitms 2
Reset Resetport.4
Call Read_rtl8019as(rstport)
Call Write_rtl8019as(rstport , Byte_read)
Waitms 10
'check for good soft reset
Call Read_rtl8019as(isr)
If Byte_read.7 = 0 Then
Print Msg_initfail
End If
Call Write_rtl8019as(cr , &H21)
Waitms 2
Call Write_rtl8019as(dcr , Dcrval)
Call Write_rtl8019as(rbcr0 , &H00)
Call Write_rtl8019as(rbcr1 , &H00)
Call Write_rtl8019as(rcr , &H04)
Call Write_rtl8019as(tpsr , Txtstart)
Call Write_rtl8019as(tcr , &H02)
Call Write_rtl8019as(pstart , Rxstart)
Call Write_rtl8019as(bnry , Rxstart)
Call Write_rtl8019as(pstop , Rxstop)
Call Write_rtl8019as(cr , &H61)
Waitms 2
Call Write_rtl8019as(curr , Rxstart)
For Hulp1 = 1 To 6
Call Write_rtl8019as(hulp1 , Mymac(hulp1))
Next Hulp1
Call Write_rtl8019as(cr , &H21)
Call Write_rtl8019as(dcr , Dcrval)
Call Write_rtl8019as(cr , &H22)
Call Write_rtl8019as(isr , &HFF)
Call Write_rtl8019as(imr , Imrval)
Call Write_rtl8019as(tcr , Tcrval)
End Sub
'(
' Routine show the contents of the RTL8019as registers
'
Sub Showregs
Local Cntr1 As Byte
Local Cntr2 As Byte
Call Write_rtl8019as(cr , &H21)
Print
Print "Realtek 8019AS Register dump"
Print
Print "REG Page0 Page1 Page2 Page3"
Print
For Cntr1 = 0 To 15
Cntr2 = Cntr1
Print Hex(cntr2);
Print " ";
Call Write_rtl8019as(cr , &H21)
Cntr2 = Cntr1
Call Read_rtl8019as(cntr2)
Print Hex(byte_read);
Print " ";
Call Write_rtl8019as(cr , &H61)
Cntr2 = Cntr1
Call Read_rtl8019as(cntr2)
Print Hex(byte_read);
Print " ";
Call Write_rtl8019as(cr , &HA1)
Cntr2 = Cntr1
Call Read_rtl8019as(cntr2)
Print Hex(byte_read);
Print " ";
Call Write_rtl8019as(cr , &HE1)
Cntr2 = Cntr1
Call Read_rtl8019as(cntr2)
Print Hex(byte_read)
Next Cntr1
End Sub
')
Sub Overrun
Call Read_rtl8019as(cr)
Data_l = Byte_read
Call Write_rtl8019as(cr , &H21)
Waitms 2
Call Write_rtl8019as(rbcr0 , &H00)
Call Write_rtl8019as(rbcr1 , &H00)
Hulp1 = Data_l And &H04
If Hulp1 <> 0 Then
Resend = 0
Else
If Hulp1 = 0 Then
Call Read_rtl8019as(isr)
Data_l = Byte_read
Hulp1 = Data_l And &H02
Hulp4 = Data_l And &H08
Hulp3 = Hulp1 Or Hulp4
If Hulp3 > 0 Then
Resend = 0
Else
Resend = 1
End If
End If
End If
Call Write_rtl8019as(tcr , &H02)
Call Write_rtl8019as(cr , &H22)
Call Write_rtl8019as(bnry , Rxstart)
Call Write_rtl8019as(cr , &H62)
Call Write_rtl8019as(curr , Rxstart)
Call Write_rtl8019as(cr , &H22)
Call Write_rtl8019as(isr , &H10)
Call Write_rtl8019as(tcr , Tcrval)
End Sub
' Routine to execute send packet command to retrieve the packet
'
Sub Getpacket
Call Write_rtl8019as(cr , &H1A)
For I = 0 To 4
Call Read_rtl8019as(rdmaport)
Pageheader(i + 1) = Byte_read
Next I
'watch it. overlay variables
Result16h = T_enetpacketlenh
Result16l = T_enetpacketlenl
Rxlen = Result16
Hulp2 = Rxlen + 1
For I = 1 To Hulp2
Call Read_rtl8019as(rdmaport)
'dump any bytes that will overrun the receive buffer
If I < 1500 Then
Packet(i + 1) = Byte_read
End If
Next I
Hulp1 = Byte_read And Rdc
If Hulp1 <> 64 Then
Call Read_rtl8019as(isr)
End If
Call Write_rtl8019as(isr , &HFF)
' Routine to process an ARP packet
'
If T_enetpackettype = &H0608 Then
If T_arp_hwtype1 = &H01 Then
If T_arp_prttype1 = &H00 Then
If T_arp_hwlen = &H06 Then
If T_arp_prlen = &H04 Then
If T_arp_op1 = &H01 Then
If My_ip = T_arp_tipaddr Then
Call Arp
End If
End If
End If
End If
End If
End If
End If
' Routine to go ahead with icmp or udp
'
If T_enetpackettype = &H0008 Then
If T_ip_destaddr = My_ip Then
Select Case T_ip_proto
Case Prot_icmp : Call Icmp
Case Prot_tcp : Call Tcp
Case Prot_udp : Call Udp
End Select
End If
End If
End Sub
' Routine to handle ARP-traffic
'
Sub Arp
'Start the NIC
Call Write_rtl8019as(cr , &H22)
'load beginning page for transmit buffer
Call Write_rtl8019as(tpsr , Txtstart)
'set start address for remote DMA operation
Call Write_rtl8019as(rsar0 , &H00)
Call Write_rtl8019as(rsar1 , &H40)
'clear the interrupts
Call Write_rtl8019as(isr , &HFF)
'load data byte count for remote DMA
Call Write_rtl8019as(rbcr0 , &H3C)
Call Write_rtl8019as(rbcr1 , &H00)
'do remote write operation
Call Write_rtl8019as(cr , &H12)
'write destination MAC address
Call Write_dest_mac
'write source address
For I = 1 To 6
Call Write_rtl8019as(rdmaport , Mymac(i))
Next I
'arp target IP address
'arp_op1 = packet(&h16)
Packet(&H16) = &H02
For I = 0 To 9
Hulp1 = &HCC + I
T = Peek(hulp1)
Call Write_rtl8019as(rdmaport , T)
Next I
'write ethernet module mac address
For I = 1 To 6
Call Write_rtl8019as(rdmaport , Mymac(i))
Next I
'write myip
For I = 1 To 4
Call Write_rtl8019as(rdmaport , Myip(i))
Next I
'write remote mac address
Call Write_dest_mac
'write remote IP address
Call Write_rtl8019as(rdmaport , T_arp_sipaddr0)
Call Write_rtl8019as(rdmaport , T_arp_sipaddr1)
Call Write_rtl8019as(rdmaport , T_arp_sipaddr2)
Call Write_rtl8019as(rdmaport , T_arp_sipaddr3)
'write som pad characters to fill out the packet to the minimum length
For I = 0 To &H11
Call Write_rtl8019as(rdmaport , &H00)
Next I
'make sure the DMA operation has succesfully completed
Byte_read = 0
Do
Hulp1 = Byte_read And Rdc
Call Read_rtl8019as(isr)
Loop Until Hulp1 = 0
'load numbers of bytes to be transmitted
Call Write_rtl8019as(tbcr0 , &H3C)
Call Write_rtl8019as(tbcr1 , &H00)
'send the contents of the transmit buffer onto the network
Call Write_rtl8019as(cr , &H24)
End Sub
Sub Write_dest_mac
Call Write_rtl8019as(rdmaport , T_enetpacketsrc0)
Call Write_rtl8019as(rdmaport , T_enetpacketsrc1)
Call Write_rtl8019as(rdmaport , T_enetpacketsrc2)
Call Write_rtl8019as(rdmaport , T_enetpacketsrc3)
Call Write_rtl8019as(rdmaport , T_enetpacketsrc4)
Call Write_rtl8019as(rdmaport , T_enetpacketsrc5)
End Sub
Sub Icmp
'set echo reply
T_icmp_type = &H00
T_icmp_code = &H00
'setup the IP-header
Call Setipaddrs
Call Icmp_checksum
Call Echopacket
End Sub
' Routine to handle the source/destination address
'
Sub Setipaddrs
T_ip_destaddr = T_ip_srcaddr
'make ethernet module IP address source address
T_ip_srcaddr = My_ip
Call Packetshape
Call Ip_header_checksum
End Sub
' Routine to echo a complete packet
'
Sub Echopacket
Call Write_rtl8019as(cr , &H22)
Call Write_rtl8019as(tpsr , Txtstart)
Call Write_rtl8019as(rsar0 , &H00)
Call Write_rtl8019as(rsar1 , &H40)
Call Write_rtl8019as(isr , &HFF)
Hulp1 = T_enetpacketlenl - 4
Call Write_rtl8019as(rbcr0 , Hulp1)
Call Write_rtl8019as(rbcr1 , T_enetpacketlenh)
Call Write_rtl8019as(cr , &H12)
Result16h = T_enetpacketlenh
Result16l = T_enetpacketlenl
Result16 = Result16 - 4
Txlen = Result16
'write the complete packet to the RTL8019AS from packet(1) to packet(txlen+1)
Hulp2 = Txlen + 1
For I = 1 To Hulp2
Call Write_rtl8019as(rdmaport , Packet(i))
Next I
Byte_read = 0
While Hulp1 <> 0
Hulp1 = Byte_read And Rdc
Call Read_rtl8019as(isr)
Wend
Hulp1 = T_enetpacketlenl - 4
Call Write_rtl8019as(tbcr0 , Hulp1)
Call Write_rtl8019as(tbcr1 , T_enetpacketlenh)
Call Write_rtl8019as(cr , &H24)
End Sub
Sub Packetshape
'move hardware source address to destination address
T_enetpacketdest0 = T_enetpacketsrc0
T_enetpacketdest1 = T_enetpacketsrc1
T_enetpacketdest2 = T_enetpacketsrc2
T_enetpacketdest3 = T_enetpacketsrc3
T_enetpacketdest4 = T_enetpacketsrc4
T_enetpacketdest5 = T_enetpacketsrc5
' 'Make ethernet module mac address the source address
T_enetpacketsrc0 = Mymac(1)
T_enetpacketsrc1 = Mymac(2)
T_enetpacketsrc2 = Mymac(3)
T_enetpacketsrc3 = Mymac(4)
T_enetpacketsrc4 = Mymac(5)
T_enetpacketsrc5 = Mymac(6)
End Sub
' Routine to calculate a ICMP-checksum
'
Sub Icmp_checksum
'clear the ICMP checksum
T_icmp_cksum = &H00
'calculate the ICMP checksum
I_header_length = T_ip_pktlen1 - 20
'I_header_length = I_header_length - 20
I_odd = I_header_length Mod 2
'14 for MAC-part
'20 for IP-header
'start on 35
'ip_pktlen = 00 3c (60)
'icmp-packetlengte = ip_pktlen - ip_header
I_chksum32 = 0
'Total packetlength - ip_header - 1
Hulp6h = T_ip_pktlen0
Hulp6l = T_ip_pktlen1
Val1 = 35
Val2 = Hulp6 + 13
Call General_part_checksum(val1 , Val2)
T_icmp_cksum0 = Val3
T_icmp_cksum1 = Val4
End Sub
' Routine to calculate a IP-header checksum
'
Sub Ip_header_checksum
Local Ip_x As Byte
Local Ip_hulp1 As Byte
Local Ip_chksum32 As Long
Local Ip_checksum16 As Word
Local Ip_temp16 As Word
Local Ip_header_length As Byte
'calculate the IP header checksum
T_ip_hdr_cksum = &H00
' Hdr_chksum = 0
I_chksum32 = 0
Ip_header_length = T_ip_vers_len And &H0F
Ip_header_length = 4 * Ip_header_length
I_chksum32 = 0
I_odd = 0
Val1 = 15
Val2 = &H0E + Ip_header_length
Call General_part_checksum(val1 , Val2)
T_ip_hdr_cksum0 = Val3
T_ip_hdr_cksum1 = Val4
End Sub
' Routine to handle UDP-traffic
'
Sub Udp
Triggerstr = ""
Hulp1 = &HEA
For Hulp2 = 1 To 20
Hulp3 = Peek(hulp1)
Triggerstr = Triggerstr + Chr(hulp3)
Incr Hulp1
Next Hulp2
'From within a VB-program
If T_udp_destport = &H8813 Then
Select Case T_udp_data
Case &H01 : Call Relayon(1)
Case &H02 : Call Relayon(2)
Case &H03 : Call Relayon(3)
Case &H04 : Call Relayon(4)
Case &HA1 : Call Relayoff(5)
Case &HA2 : Call Relayoff(6)
Case &HA3 : Call Relayoff(7)
Case &HA4 : Call Relayoff(8)
End Select
If Triggerstr = Triggerstring Then
If Lcdpresent = 1 Then
Lcd_t = "*UDP request#Sending: "
Call Lcd_txt
End If
Portpntr = Asc( "P")
Tempstring = Bin(inputport1)
Portval = Left(tempstring , 4)
If Lcdpresent = 1 Then
Lcd_t = "P" + Portval
End If
Relaypntr = Asc( "R")
Tempstring = Bin(relaystatus)
Relval = Right(tempstring , 4)
If Lcdpresent = 1 Then
Lcd_t = Lcd_t + "R"
Lcd_t = Lcd_t + Relval
Call Lcd_txt
Idletime = 0
End If
'Build The Ip Header
Call Setipaddrs
'swap the UDP source and destinations port
Swap T_udp_srcport0 , T_udp_destport0
Swap T_udp_srcport1 , T_udp_destport1
Call Udp_checksum
Call Write_rtl8019as(cr , &H22)
Call Echopacket
End If
End If
End Sub
' Routine to calculate the Udp-checksum
'
Sub Udp_checksum
T_udp_chksum0 = &H00
T_udp_chksum1 = &H00
'checksum TCP header
I_chksum32 = 0
I_value16h = T_ip_srcaddr0
I_value16l = T_ip_srcaddr1
I_chksum32 = I_chksum32 + I_value16
I_value16h = T_ip_srcaddr2
I_value16l = T_ip_srcaddr3
I_chksum32 = I_chksum32 + I_value16
I_value16h = T_ip_destaddr0
I_value16l = T_ip_destaddr1
I_chksum32 = I_chksum32 + I_value16
I_value16h = T_ip_destaddr2
I_value16l = T_ip_destaddr3
I_chksum32 = I_chksum32 + I_value16
'proto
I_chksum32 = I_chksum32 + T_ip_proto
'packet length
I_value16h = T_udp_len0
I_value16l = T_udp_len1
I_chksum32 = I_chksum32 + I_value16
I_odd = T_udp_len1 Mod 2
Result16h = T_udp_len0
Result16l = T_udp_len1
'udp_srcport0 = packet(&h23)
Val1 = &H23
Val2 = &H23 + Result16
Val2 = Val2 - 2
Call General_part_checksum(val1 , Val2)
T_udp_chksum0 = Val3
T_udp_chksum1 = Val4
End Sub
Sub General_part_checksum(byval Val1 As Byte , Byval Val2 As Word)
For I_x = Val1 To Val2 Step 2
I_value16h = Packet(i_x)
Hulp3 = I_x + 1
I_value16l = Packet(hulp3)
I_chksum32 = I_chksum32 + I_value16
Next I_x
If I_odd = 1 Then
Incr Val2
I_value16h = Packet(val2)
I_value16l = 0
I_chksum32 = I_chksum32 + I_value16
End If
I_checksum16 = Highw(i_chksum32)
I_checksum16 = I_checksum16 + I_chksum32 ' only 16 lower bits of i_chksum32 is taken...
I_checksum16 = Not I_checksum16
Val3 = High(i_checksum16)
Val4 = Low(i_checksum16)
End Sub
' Subroutine to initialize the LCD-display
Sub Lcd_init
Waitms 15
'set 8-bit mode (attention)
'toggle the E -line
I2csend Pcf8574 , &B10000011
I2csend Pcf8574 , &B00000011
Waitms 4
'set 8-bit mode (attention)
I2csend Pcf8574 , &B10000011
I2csend Pcf8574 , &B00000011
Waitms 1
'set 8-bit mode (attention)
I2csend Pcf8574 , &B10000011
I2csend Pcf8574 , &B00000011
Waitms 4
'set 4-bit operation
I2csend Pcf8574 , &B10000010
I2csend Pcf8574 , &B00000010
Waitms 1
'set 8-bit mode (attention)
I2csend Pcf8574 , &B10000010
I2csend Pcf8574 , &B00000010
I2csend Pcf8574 , &B10001000
I2csend Pcf8574 , &B00001000
Waitms 1
I2csend Pcf8574 , &B10000000
I2csend Pcf8574 , &B00000000
'Display off, cursor off, blink off
I2csend Pcf8574 , &B10001000
I2csend Pcf8574 , &B00001000
Waitms 1
I2csend Pcf8574 , &B10000000
I2csend Pcf8574 , &B00000000
'display on, cursor off, blinking off
I2csend Pcf8574 , &B10001100
I2csend Pcf8574 , &B00001100
Waitms 1
I2csend Pcf8574 , &B10000000
I2csend Pcf8574 , &B00000000
'clear display and send cursor to address 0
I2csend Pcf8574 , &B10000001
I2csend Pcf8574 , &B00000001
Waitms 1
End Sub
' Routine to send a character to the LCD-display
'
Sub Lcd_char(lcd_c As Byte)
If Lcd_c = 42 Then '* CLS/HOME
Call Lcdhome
Elseif Lcd_c = 35 Then '# second line
Call Secondline
Else
Lcd_temp = Lcd_c And &HF0
Rotate Lcd_temp , Right , 4
I2csend Pcf8574 , Lcd_temp
Set Lcd_temp.e
Set Lcd_temp.rs
I2csend Pcf8574 , Lcd_temp
Reset Lcd_temp.e
Reset Lcd_temp.rs
I2csend Pcf8574 , Lcd_temp
Lcd_temp = Lcd_c And &H0F
I2csend Pcf8574 , Lcd_temp
Set Lcd_temp.e
Set Lcd_temp.rs
I2csend Pcf8574 , Lcd_temp
Reset Lcd_temp.e
Reset Lcd_temp.rs
I2csend Pcf8574 , Lcd_temp
End If
End Sub
' Routine to send a string to the LCD-display
'
' Fill lcd_t with the text and call lcd_txt
'
Sub Lcd_txt
Lcd_hulp = Len(lcd_t)
For Lcd_x = 1 To Lcd_hulp
Lcd_tempstr = Mid(lcd_t , Lcd_x , 1)
Lcd_temp = Asc(lcd_tempstr)
Call Lcd_char(lcd_temp)
Next Lcd_x
End Sub
Sub Lcdhome
I2csend Pcf8574 , &B10000000
I2csend Pcf8574 , &B00000000
Waitms 2
I2csend Pcf8574 , &B10000001
I2csend Pcf8574 , &B00000001
Waitms 2
End Sub
Sub Secondline
Call Firstline
For Lcd_h = 1 To 40
I2csend Pcf8574 , &B10000001
I2csend Pcf8574 , &B00000001
Waitms 2
I2csend Pcf8574 , &B10000100
I2csend Pcf8574 , &B00000100
Waitms 2
Next Lcd_h
End Sub
Sub Firstline
I2csend Pcf8574 , &B10000000
I2csend Pcf8574 , &B00000000
Waitms 2
I2csend Pcf8574 , &B10000010
I2csend Pcf8574 , &B00000010
Waitms 2
End Sub
' TCP
'
Sub Tcp
Local Work As Byte
Work = Tcp_flags
Tcp_fin = Work.0
Tcp_syn = Work.1
Tcp_rst = Work.2
Tcp_psh = Work.3
Tcp_ack = Work.4
Tcp_urg = Work.5
If Tcp_destporth = 0 Then
Select Case Tcp_destportl
Case 80 : Call Http
End Select
End If
End Sub
Sub Http
#if Debug = 1
Print "HTTP"
Print
Print "Destination port low " ; Tcp_destportl
Print "Destination port high " ; Tcp_destporth
Print
Print "TCPdatalen_in " ; Tcpdatalen_in
Print
Print "Flags:"
Print "FIN " ; Tcp_fin
Print "SYN " ; Tcp_syn
Print "RST " ; Tcp_rst
Print "PSH " ; Tcp_psh
Print "ACK " ; Tcp_ack
Print "URG " ; Tcp_urg
Print
Print "Incoming:"
Print "Tcp_seqnum3 " ; Hex(tcp_seqnum3)
Print "Tcp_seqnum2 " ; Hex(tcp_seqnum2)
Print "Tcp_seqnum1 " ; Hex(tcp_seqnum1)
Print "Tcp_seqnum0 " ; Hex(tcp_seqnum0)
Print
Print "Tcp_acknum3 " ; Hex(tcp_acknum3)
Print "Tcp_acknum2 " ; Hex(tcp_acknum2)
Print "Tcp_acknum1 " ; Hex(tcp_acknum1)
Print "Tcp_acknum0 " ; Hex(tcp_acknum0)
#endif
Local Msg_temp2 As String * 10
Local Tempword3 As Word
Local Z As Word
Local Ztemp As Word
Local Tempstring2 As String * 5
Local Templong1 As Long
Result16h = T_ip_pktlen0
Result16l = T_ip_pktlen1
'
' calculate IP header length
' MSN is version (IPv4)
' LSN is length
Hulp1 = T_ip_vers_len And &H0F
Hulp1 = Hulp1 * 4
' calculate TCP header length
' MSN is length / 4
Hulp2 = Tcp_hdr And &HF0
Shift Hulp2 , Right , 4
Hulp2 = Hulp2 * 4
Tcpdatalen_in = Result16 - Hulp1
Tcpdatalen_in = Tcpdatalen_in - Hulp2
' If an ACK is received and the destination port address is valid
' and no data is in the packet
If Tcp_ack = 1 Then
If Tcpdatalen_in = 0 Then
Incoming_ack0 = Tcp_acknum0
Incoming_ack1 = Tcp_acknum1
Incoming_ack2 = Tcp_acknum2
Incoming_ack3 = Tcp_acknum3
If Flags.synflag = 1 Then
Reset Flags.synflag
My_seqnum = Incoming_ack
Tempword3 = &H37
If Lcdpresent = 1 Then
Lcd_t = "*HTTP request"
Call Lcd_txt
Call Secondline
Lcd_t = "Sending: "
Call Lcd_txt
Tempstring = Bin(inputport1)
Lcd_t = "P" + Left(tempstring , 4)
Call Lcd_txt
Tempstring = Bin(relaystatus)
Lcd_t = "R" + Right(tempstring , 4)
Call Lcd_txt
Idletime = 0
End If
Restore Htmlcode
Do
Read Msg_temp
Msg_temp2 = Right(msg_temp , 8)
If Msg_temp2 = "endblock" Then
Exit Do
End If
If Msg_temp2 = "get-ipnr" Then
Readeeprom Hulp1 , 13
If Hulp1 = &HFF Then
Msg_temp = "http://" + Str(myip(1))
Msg_temp = Msg_temp + "." + Str(myip(2))
Msg_temp = Msg_temp + "." + Str(myip(3))
Msg_temp = Msg_temp + "." + Str(myip(4))
Else
Msg_temp = ""
For Y = 1 To Hulp1
Hulp3 = Y + 13
Readeeprom Hulp2 , Hulp3
Msg_temp = Msg_temp + Chr(hulp2)
Next Y
End If
End If
If Msg_temp2 = "get-info" Then
If Inputport1.4 = 0 Then
Msg_temp = "<td bgcolor=green><b>on</td>"
Else
Msg_temp = "<td bgcolor=red><b>off</td>"
End If
For Y = 1 To Len(msg_temp)
Tempstring1 = Mid(msg_temp , Y , 1)
Packet(tempword3) = Asc(tempstring1)
Incr Tempword3
Next Y
If Inputport1.5 = 0 Then
Msg_temp = "<td bgcolor=green><b>on</td>"
Else
Msg_temp = "<td bgcolor=red><b>off</td>"
End If
For Y = 1 To Len(msg_temp)
Tempstring1 = Mid(msg_temp , Y , 1)
Packet(tempword3) = Asc(tempstring1)
Incr Tempword3
Next Y
If Inputport1.6 = 0 Then
Msg_temp = "<td bgcolor=green><b>on</td>"
Else
Msg_temp = "<td bgcolor=red><b>off</td>"
End If
For Y = 1 To Len(msg_temp)
Tempstring1 = Mid(msg_temp , Y , 1)
Packet(tempword3) = Asc(tempstring1)
Incr Tempword3
Next Y
If Inputport1.7 = 0 Then
Msg_temp = "<td bgcolor=green><b>on</td>"
Else
Msg_temp = "<td bgcolor=red><b>off</td>"
End If
For Y = 1 To Len(msg_temp)
Tempstring1 = Mid(msg_temp , Y , 1)
Packet(tempword3) = Asc(tempstring1)
Incr Tempword3
Next Y
If Relaystatus.0 = 1 Then
Msg_temp = "<td bgcolor=green><b>on</td>"
Else
Msg_temp = "<td bgcolor=red><b>off</td>"
End If
For Y = 1 To Len(msg_temp)
Tempstring1 = Mid(msg_temp , Y , 1)
Packet(tempword3) = Asc(tempstring1)
Incr Tempword3
Next Y
If Relaystatus.1 = 1 Then
Msg_temp = "<td bgcolor=green><b>on</td>"
Else
Msg_temp = "<td bgcolor=red><b>off</td>"
End If
For Y = 1 To Len(msg_temp)
Tempstring1 = Mid(msg_temp , Y , 1)
Packet(tempword3) = Asc(tempstring1)
Incr Tempword3
Next Y
If Relaystatus.2 = 1 Then
Msg_temp = "<td bgcolor=green><b>on</td>"
Else
Msg_temp = "<td bgcolor=red><b>off</td>"
End If
For Y = 1 To Len(msg_temp)
Tempstring1 = Mid(msg_temp , Y , 1)
Packet(tempword3) = Asc(tempstring1)
Incr Tempword3
Next Y
If Relaystatus.3 = 1 Then
Msg_temp = "<td bgcolor=green><b>on</td>"
Else
Msg_temp = "<td bgcolor=red><b>off</td>"
End If
For Y = 1 To Len(msg_temp)
Tempstring1 = Mid(msg_temp , Y , 1)
Packet(tempword3) = Asc(tempstring1)
Incr Tempword3
Next Y
Else
For Y = 1 To Len(msg_temp)
Tempstring1 = Mid(msg_temp , Y , 1)
Packet(tempword3) = Asc(tempstring1)
Incr Tempword3
Next Y
End If
Loop
Tcpdatalen_out = Tempword3 - 55 'minus headerlength
' expect to get an acknowledgment of the message
Expected_ack = My_seqnum + Tcpdatalen_out
' send the TCP/IP packet
Call Send_tcp_packet
End If
End If
End If
' This code segment processes the incoming SYN from the Tenet client
' and sends back the initial sequence number (ISN) and acknowledges
' the incoming SYN packet
If Tcp_syn = 1 Then
#if Debug = 1
Print "Tcp_syn = 1"
#endif
Tcpdatalen_in = 1
Set Flags.synflag
Call Setup_packet
Swap Tcp_srcportl , Tcp_destportl
Swap Tcp_srcporth , Tcp_destporth
Call Assemble_ack
Call Tcpseqtomyseq
Tcp_flags = 0
Set Tcp_flags.1
Set Tcp_flags.4
Call Tcp_checksum
Call Echopacket
End If
If Tcp_fin = 1 Then
Set Flags.finflag
Incr Tcpdatalen_in
Incoming_ack0 = Tcp_acknum0
Incoming_ack1 = Tcp_acknum1
Incoming_ack2 = Tcp_acknum2
Incoming_ack3 = Tcp_acknum3
'Call Incomacqtotcpack
If Incoming_ack <= Expected_ack Then
Templong1 = Expected_ack - Incoming_ack
My_seqnum = Expected_ack - Templong1
End If
Expected_ack = My_seqnum + Tcpdatalen_out
Call Send_tcp_packet
End If
If Tcp_psh = 1 Then
#if Debug = 1
Print "Tcp_psh = 1"
#endif
' walk through the packet until GET / is found
For Z = 40 To 255
Ztemp = Z
Tempstring2 = Chr(packet(ztemp))
Incr Ztemp
Tempstring2 = Tempstring2 + Chr(packet(ztemp))
Incr Ztemp
Tempstring2 = Tempstring2 + Chr(packet(ztemp))
Incr Ztemp
Tempstring2 = Tempstring2 + Chr(packet(ztemp))
Incr Ztemp
Tempstring2 = Tempstring2 + Chr(packet(ztemp))
If Tempstring2 = "GET /" Then
Ztemp = Ztemp + 301
Exit For
End If
#if Debug = 1
Print "/GET gevonden"
#endif
Next Z
'ztemp > 300 when GET / is found
'ztemp <= 300 when GET / not found
'when found ztemp has the pointer to it (plus 300)
If Ztemp > 300 Then
Ztemp = Ztemp - 300
If Chr(packet(ztemp)) = "R" Then
Incr Ztemp
Hulp1 = Val(packet(ztemp))
Select Case Hulp1
Case 1 To 4 : Call Relayon(hulp1)
Case 5 To 8 : Call Relayoff(hulp1)
End Select
End If
End If
End If
End Sub
Sub Tcp_checksum
Local Whulp1 As Word
Local Whulp2 As Word
Local Whulp3 As Word
Local Tempword2 As Word
Tcp_cksum = 0
I_chksum32 = 0
Tempwordh = T_ip_srcaddr0
Tempwordl = T_ip_srcaddr1
I_chksum32 = Tempword
Tempwordh = T_ip_srcaddr2
Tempwordl = T_ip_srcaddr3
I_chksum32 = I_chksum32 + Tempword
Tempwordh = T_ip_destaddr0
Tempwordl = T_ip_destaddr1
I_chksum32 = I_chksum32 + Tempword
Tempwordh = T_ip_destaddr2
Tempwordl = T_ip_destaddr3
I_chksum32 = I_chksum32 + Tempword
I_chksum32 = I_chksum32 + T_ip_proto
Tempwordh = T_ip_pktlen0
Tempwordl = T_ip_pktlen1
Tempword2 = T_ip_vers_len And &H0F
Tempword2 = Tempword2 * 4
I_chksum32 = I_chksum32 + Tempword
I_chksum32 = I_chksum32 - Tempword2
Whulp2 = Tempword - 20
Whulp2 = Whulp2 + &H23
Whulp2 = Whulp2 - 2
Val1 = &H23
Val2 = Whulp2
I_odd = Val2 - Val1
I_odd = I_odd Mod 2
Call General_part_checksum(val1 , Val2)
Tcp_cksumh = Val3
Tcp_cksuml = Val4
End Sub
' Send the TCP-packet, a bit different then echopacket
'
Sub Send_tcp_packet
Ip_packet_len = 40 + Tcpdatalen_out
T_ip_pktlen1 = Low(ip_packet_len)
T_ip_pktlen0 = High(ip_packet_len)
Call Setup_packet
Swap Tcp_srcporth , Tcp_destporth
Swap Tcp_srcportl , Tcp_destportl
Call Assemble_ack
Call Tcpseqtomyseq
Tcp_flags = 0
'fin_out
Set Tcp_flags.0 ' piggyback FIN onto the page date
'ack_out
Set Tcp_flags.4
If Flags.finflag = 1 Then
'fin_out
Set Tcp_flags.0
'clr_finflag
Reset Flags.finflag
End If
Call Tcp_checksum
Txlen = Ip_packet_len + 14
If Txlen < 60 Then
Txlen = 60
End If
Call Write_rtl8019as(cr , &H22)
Call Write_rtl8019as(tpsr , Txstart)
Call Write_rtl8019as(rsar0 , &H00)
Call Write_rtl8019as(rsar1 , &H40)
Call Write_rtl8019as(isr , &HFF)
Hulp1 = Low(txlen)
Call Write_rtl8019as(rbcr0 , Hulp1)
Hulp1 = High(txlen)
Call Write_rtl8019as(rbcr1 , Hulp1)
Call Write_rtl8019as(cr , &H12)
For I = 1 To Txlen
Call Write_rtl8019as(rdmaport , Packet(i))
Next
'make sure the DMA operation has succesfully completed
Byte_read = 0
Do
Hulp1 = Byte_read And Rdc
Call Read_rtl8019as(isr)
Loop Until Hulp1 = 0
Hulp1 = Low(txlen)
Call Write_rtl8019as(tbcr0 , Hulp1)
Hulp1 = High(txlen)
Call Write_rtl8019as(tbcr1 , Hulp1)
Call Write_rtl8019as(cr , &H24)
End Sub
Sub Setup_packet
'Move IP source address to destination address
T_ip_destaddr = T_ip_srcaddr
'Make ethernet module IP address source address
T_ip_srcaddr = My_ip
'Move hardware source address to destinatin address
Call Packetshape
Call Ip_header_checksum
End Sub
Sub Assemble_ack
Client_seqnum0 = Tcp_seqnum0
Client_seqnum1 = Tcp_seqnum1
Client_seqnum2 = Tcp_seqnum2
Client_seqnum3 = Tcp_seqnum3
Client_seqnum = Client_seqnum + Tcpdatalen_in
Tcp_acknum0 = Client_seqnum0
Tcp_acknum1 = Client_seqnum1
Tcp_acknum2 = Client_seqnum2
Tcp_acknum3 = Client_seqnum3
End Sub
Sub Tcpseqtomyseq
Tcp_seqnum0 = My_seqnum0
Tcp_seqnum1 = My_seqnum1
Tcp_seqnum2 = My_seqnum2
Tcp_seqnum3 = My_seqnum3
End Sub
' Routine to switch on relay X and update status
'
Sub Relayon(x)
Decr X
Relaystatus.x = 1
Call Status
End Sub
' Routine to switch off relay X and update status
'
Sub Relayoff(x)
X = X - 5
Relaystatus.x = 0
Call Status
End Sub
' Routine to switch on/off relais and get the status
'
Sub Status
Databus_ddr = &HFF
Databus = Relaystatus
Set Latch
Reset Latch
End Sub
' htmlcode
'
Htmlcode:
Data "HTTP/1.0 200" , &H0D , &H0A , &H0D , &H0A
Data "<html><head><meta http-equiv=" , &H22 , "Refresh" , &H22 , " CONTENT=" , &H22 , "9;URL="
Data "get-ipnr"
Data &H22 , ">"
Data "<meta http-equiv=" , &H22 , "Pragma" , &H22 , " Content=" , &H22 , "no cache" , &H22 , ">"
Data "<title>Ethernet I/O board</title></head>"
Data "<body style=" , &H22 , "font-family: Verdana; font-size: 8pt; "
Data "font-weight: Bold" , &H22 , " link=" , &H22 , "#000000" , &H22 , " vlink=" , &H22
Data "#000000" , &H22 , " alink=" , &H22 , "#000000" , &H22 , ">"
Data "<table border=" , &H22 , "10" , &H22 , " width=" , &H22 , "600" , &H22
Data " bordercolor=" , &H22 , "green" , &H22 , " height=" , &H22 , "225" , &H22
Data " cellspacing=" , &H22 , "12" , &H22 , "><tr>"
Data "get-info"
Data "<tr><tr>"
Data "<td><b>Input 1</td>"
Data "<td><b>Input 2</td>"
Data "<td><b>Input 3</td>"
Data "<td><b>Input 4</td>"
Data "<td><b>Relay 1</td>"
Data "<td><b>Relay 2</td>"
Data "<td><b>Relay 3</td>"
Data "<td><b>Relay 4</td>"
Data "</tr><tr><td height=" , &H22 , "100" , &H22
Data " colspan=" , &H22 , "4" , &H22 , " rowspan=" , &H22 , "2" , &H22 , " bordercolor=" , &H22
Data "white" , &H22 , " valign=" , &H22 , "bottom" , &H22 , ">"
Data "<p><b><font size=" , &H22 , "4" , &H22
Data " color=" , &H22 , "green" , &H22 , ">Ethernet I/O board"
Data "</font></b></p>"
Data "</td>"
Data "<td height=" , &H22 , "50"
Data &H22 , "><a href=" , &H22 , "/R1" , &H22 , "><b>on</a></td>"
Data "<td height=" , &H22 , "50"
Data &H22 , "><a href=" , &H22 , "/R2" , &H22 , "><b>on</a></td>"
Data "<td height=" , &H22 , "50"
Data &H22 , "><a href=" , &H22 , "/R3" , &H22 , "><b>on</a></td>"
Data "<td height=" , &H22 , "50"
Data &H22 , "><a href=" , &H22 , "/R4" , &H22 , "><b>on</a></td>"
Data "</tr><tr><td height=" , &H22 , "50"
Data &H22 , "><a href=" , &H22 , "/R5" , &H22 , "><b>off</a></td>"
Data "<td height=" , &H22 , "50"
Data &H22 , "><a href=" , &H22 , "/R6" , &H22 , "><b>off</a></td>"
Data "<td height=" , &H22 , "50"
Data &H22 , "><a href=" , &H22 , "/R7" , &H22 , "><b>off</a></td>"
Data "<td height=" , &H22 , "50"
Data &H22 , "><a href=" , &H22 , "/R8" , &H22 , "><b>off</a></td>"
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