IPC@CHIP Documentation - SC12 @CHIP-RTOS V1.10

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Top of list Index page b) The current stack must be pre-initialized for math emulation: void my_emu1st(void) { asm{ mov word ptr ss:[0x2f],0x0065 // set end of FPU stack mov word ptr ss:[0x31],0x0125 // set start of FPU stack mov word ptr ss:[0x27],0 // no protected mode mov byte ptr ss:[0x26],0 // no 8087 } } c) Before executing floating point arithmetic, call the Borland library function _fpreset, which initializes the stack for floating point emulation. Example for a task function: void huge my_task(void) { float a; my_emu1st(); _fpreset(); // ..... ready for executing floating point arithmetic } If you are interest in more details, take a look at the Borland 5.02 RTL sources (fpinit.asm). We will provide an example for using floating point arithmetic in separate tasks or within CGI callbacks. 3. Using Math emulation with Borland C++ 5.02 (also for older versions of Borland C) produces a conflict between the NMI interrupt of the @CHIP-RTOS (Interrupt Vector 0x02) and the Borland floating exception handling. Borland C math emulation also uses INT 2 for generating floating point exceptions. Our internal NMI interrupt service function (normally called at power fail case) will no longer execute during the runtime of the user's application. We have provided a solution which moves the Borland exception function from INT 2 to another interrupt vector. We modified the Borland RTL source (fpinit.asm) and include the modifications directly into the application project. It is planned to provide an example in our Internet download area. Configure PPP client or server 1. Connected modems should be configured in chip.ini with the modem command ATE0 INITCMD. This prevents the modem from echoing characters to the peer in command mode. The COM and the serial ports of the IPC@CHIP have only 4 lines (TxD/RxD/CTS/RTS) and no line for detecting a hang-up of the modem. Because of this fact we provided the Idletimeout and the MODEMCTRL configuration features in chip.ini or in the PPP client init structure type. But the idletimeout and modemctrl detection can fail if a modem has switched its echo mode on. If the peer modem hangs up without correctly closing a PPP session, the IPC@chip modem also hangs up and goes into the command mode. Because of the missing line for detecting a modem hang-up, the PPP server doesn't know anything about the broken connection and still sends PPP frames to the modem. It can happen that the modem echoes these characters back to the IPC@CHIP due to being in "Echo on" mode. This will cause the idletimeout to not work. 2. We recommend that the PPP server or client and the connected modems should run (if possible) with RTS/CTS flow control (see chip.ini flow control mode or the PPP client init structure type). Page 14 / 400
Top of list Index page End of document Most modems use RTS/CTS flow control, if they get the AT command AT\Q3. 3. The COM and EXT port of the IPC@CHIP has only CTS, RTS, RxD and TxD lines, so you have to configure your modem with DTR always on. (e.g. AT cmd for a most modem types: AT&D0) 4. If the option PPP_IPCP_PROTOCOL (VJ TCP/IP header compression) is set (see PPPCLIENT_SET_OPTIONS), it is possible that the FTP server of the IPC@CHIP is not usable via the PPP interface. This was noticed at PPP sessions connected to a Linux PPP peer. PPP Page 15 / 400
Page 1 and 2: IPC@CHIP Documentation index - SC12
Page 3 and 4: available from the download area of
Page 5 and 6: IPC@CHIP Documentation Index Introd
Page 7 and 8: 1. Timer procedures must be impleme
Page 9 and 10: Top of list Index page Usage of the
Page 11 and 12: Top of list Index page Using Hardwa
Page 13: Top of list Index page 3. Since @CH
Page 17 and 18: IPC@CHIP Documentation Index COMMAN
Page 19 and 20: Index page TYPE file Type a file. T
Page 21 and 22: Example rd temp Top of list Index p
Page 23 and 24: Top of list Index page ALE Enable/d
Page 25 and 26: Related Topics Top of list Index pa
Page 27 and 28: Top of list Index page Initial BATC
Page 29 and 30: Comments Example Make sure that oth
Page 31 and 32: Comments Top of list Index page tas
Page 33 and 34: CHIP.INI Documentation - SC12 @CHIP
Page 35 and 36: STDIO ● SERIAL_EXT_DMA ● SERIAL
Page 37 and 38: The new mode is shown on the consol
Page 39 and 40: Top of list Index page IP ADD_DEFAU
Page 41 and 42: Top of list Index page [PPPCLIENT]
Page 43 and 44: Example: REMOTEADDRESS=192.168.205.
Page 45 and 46: IDLETIME=500 By default, PPP server
Page 47 and 48: Top of list Index page PPP server c
Page 49 and 50: Comments Example: INITRETRIES0=2 Th
Page 51 and 52: [PPPSERVER] CTRLTIMEOUTx=timeout in
Page 53 and 54: PPPSERVER [PPPSERVER] HANGUPANSWERx
Page 55 and 56: Top of list Index page PPPSERVER [P
Page 57 and 58: Example: Top of list Index page FTP
Page 59 and 60: Top of list Index page FTP PASSWORD
Page 61 and 62: WEB [WEB] TEMPPATH=Name of a tempor
Page 63 and 64: Top of list Index page WEB The cons
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WEB [WEB] SEC_PASSWORDx=Define a pa
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USERx=user Comments Top of list Ind
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TRACE [TRACE] INTNOTSUPP=0/1 Commen
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Top of list Index page SERIAL [SERI
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MEMGAP=Paragraphs Comments Sets a m
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IPC@CHIP Documentation Index CONFIG
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● Interrupt_0xA0_function_0x19:_C
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Top of list Index page AX = 0. (Thi
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Comments Top of list Index page DI
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ES:DX Pointer to a 16 byte memory a
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Index page Interrupt 0xA0 service 0
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Parameters AH Must be 0x15 Return V
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AH ES:DI Comments Must be 0x20. Add
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int iniPutString(char *sectionName,
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Get the IPC@CHIP device names Param
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Return Value Comments AL= 1 DX=0: S
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Parameters AH AL BX Must be 0x33. B
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void huge my_putstr(char * pch, int
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Index page Interrupt 0xA0 service 0
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Parameters AH ES:DX Top of list Ind
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● Interrupt_0xAC_function_0x0B:_A
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Socket descriptor Return Value DX =
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put into the buffer. The sender can
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The application sleeps for a specif
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Top of list Index page Interrupt 0x
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for the API_SEND function (or recv_
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a new connection. Related Topics To
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AH BX ES:DI 0x16 (= API_SETSOCKOPT)
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Interrupt 0xAC service 0x19: API_RE
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Related Topics Top of list Index pa
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SocketInfo s[64]; int avail, i; ava
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Comments AX = -2 (=API_NOT_SUPPORTE
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Tests if PPP server is available in
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Index page Interrupt 0xAC service 0
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DS:SI CX 6 Get pointer to AtEntry d
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Bits of AX and DX contains the requ
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Parameters AH 0x74 (= TCPIP_STATIST
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Structure at [ES:DI] is filled with
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Parameters AH ES:DI 0x7A (= IP_USER
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This function is used to delete the
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CX Number of data structures in arr
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DS:SI Output Parameter: Pointer to
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For more detailed description see H
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BX CX ES:DI Number of available rec
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IPC@CHIP Documentation Index TCP/IP
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TCP/IP Application Developers Note
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ArpHeader Address Resolution Protoc
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Top of list Index page This buffer
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Comments This data structure and sp
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Comments These structures are only
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Comments unsigned long ipReasmOKs;
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typedef struct tag_ping_command { i
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The PPPDial structure is used durin
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Related Topics ❍ optionName=PPP_I
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SetSocketOption Comments This data
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Top of list Index page UdpMib Comme
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Programming client server applicati
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RTOS API - SC12 @CHIP-RTOS V1.10 IP
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AH BX 0 (=RTX_SLEEP_TIME) Sleep tim
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Return Value Comments DX=0 (always
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An out of range priority value (CX)
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Comments DX!=0 failure AX: contains
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BX ES:DI 0x19 (= RTX_RESERVE_RES) I
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Top of list Index page RTX_GET_SEM
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BX:SI Output Parameter: Pointer to
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ES:DI CX Output Parameter: Pointer
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Comments DX!=0 failure AX: contains
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The task name is not a null termina
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AH BX ES:DI DS:SI 0x40 (= RTX_CREAT
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Interrupt 0xAD service 0x43: RTX_WA
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ES:DI 0x46 (= RTX_FIND_EVENTGROUP)
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ES:DI Pointer to a 12 byte message
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Interrupt 0xAD service 0x55: RTX_FI
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Multitasking with @Chip-RTOS Some c
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ackground data base search in the e
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Suspended Free to run RTX_Resume_Ta
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Figure 1 ) Sleep Based Periodic Loo
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can potentially interrupt execution
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} } Figure 5 ) Protected Critical S
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RTOS Overview - SC12 @CHIP-RTOS V1.
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Time / Date Services The following
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Top of list Index page is willing t
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system's maximum number of availabl
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Prior to making the RTX_TASK_CREATE
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B4: Message Exchange wait B5: -- no
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name or void huge MyTimerProc(unsig
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IPC@CHIP Documentation Index @CHIP-
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RTOS Application Developers Note -
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DOS Interface Documentation - SC12
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Parameters AH DL 0x02 Character to
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AH 0x08 Return Value Comments Retur
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AH 0x19 Return Value AL = drive whe
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Only ten DTA entries for user tasks
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Note: Top of list Index page In @CH
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Parameters AH CX 0x3C File attribut
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Top of list Index page Get/Set File
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BX DX Handle Device data Return Val
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A paragraph is 16 bytes in length.
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Comments Top of list Index page AX
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operations such as renaming, moving
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AL BX CX DX AL=0 to get the date an
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Hardware API - SC12 @CHIP-RTOS V1.1
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Top of list Index page if ALE is us
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Comments If on a given timer the ex
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AH AL Must be 0x88. DRQ channel: 0
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AH ES:DI Must be 0x90. Pointer to a
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Comments 8 Bit data in ax, ax = (da
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Parameters AH DX BX CX Must be 0x83
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Top of list Index page RTX_SIGNAL_E
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none Related Topics Top of list Ind
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instead be the frequency reported b
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Return Value none Comments Top of l
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Starts the DMA mode. After calling
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BX:SI ES:DI 1 = DRQ1 Output Paramet
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Return Value none Comments Call thi
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Hardware API Layers - SC12 @CHIP-RT
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This function initializes the I2C b
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AL CX Slave address, LSB:0 => Trans
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AH AL 0x8F PIO pin number, [0..13]
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AH ES:DI CX Must be 0x96 Pointer to
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I2C Bus and SPI API Updates - SC12
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● Interrupt_0x14_function_0x04:_I
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DX Port number: 0 for EXT, 1 for CO
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DX 0x08 Port number: 0 for EXT, 1 f
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AH AL DX 0x0F Bit mask describing r
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ES:DI Pointer to user buffer. Retur
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Top of list Index page transmitter.
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DX 2: short break (1 frame) 3: extr
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Top of list Index page send queue.
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User specific TCPIP Device driver -
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Generic example: int huge myDevSend
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Implementation of this function is
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} } Related Topics Top of list Inde
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{ result= Dev_Wait_DHCP_Complete(&m
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Index page Configuring the PPP Serv
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the call without waiting for the PP
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Top of list Index page Available Ex
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● Interrupt_0xAB_function_0x07:_C
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Return Value Comments DX =0 success
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Top of list Index page CGI_FINDNEXT
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IPC@CHIP Documentation Index CGI AP
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Top of list Index page @CHIP V0.92
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IPC@CHIP Documentation Index Data S
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Comments typedef struct { //*******
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IPC@CHIP Documentation Index CGI AP
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CGI Examples Available - SC12 @CHIP
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The interrupt declaration will moti
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Interrupt 0xAE service 0x01: DRIVER
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Handle from ACCESS_TYPE call 0x02 R
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AH 0x15 Return Value Carry flag:0,
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Top of list Index page ACCESS_TYPE
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Interrupt 0xB0 service 0x02: Deinst
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HW API handler latency RTX handler
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Scalable @CHIP-RTOS variants for th
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IPC@CHIP Documentation Index Progra
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IPC@CHIP Documentation Index Introd
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Top of list Index page TFTP server
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Top of list Index page Possible err
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IPC@CHIP Documentation - SC12 @CHIP-RTOS V1.10

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