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

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period should still be keep to some reasonable small amount of time. Note that task locks also inhibit all system timer activity. Critical Section Protection Methods Summary The design trade-offs for the three methods presented above for protecting critical sections are summarized in Table 3. Method Advantage Limitations Semaphore A long duration of critical section does not adversely affect portions of system not accessing the semaphore. Interrupt Mask Most efficient of all three methods. (Executes quickly!) No priority inversion Can result in a priority inversion. Impact on system operation becomes a concern if interrupt mask time can exceed around 50 us. Task Lock No priority inversion. Impact on system operation becomes questionable if task lock duration exceeds around 400 us. Table 3 ) Critical Section Protection Methods Top of this document IPC@CHIP Documentation Index Control and Communication between Tasks The @Chip-RTOS provides the following mechanisms for tasks to control one another and to communicate. These interactions can either be between tasks within the same DOS application, or across applications. ● Semaphores ● Event Groups ● Message Exchanges The usage of these @Chip-RTOS resources is covered in depth within the on-line HTML help. Top of this document IPC@CHIP Documentation Index Page 230 / 400
RTOS Overview - SC12 @CHIP-RTOS V1.10 IPC@CHIP Documentation Index RTOS API News RTOS Overview The RTOS API services split into the following groups: ● Task_Control Services ● Semaphore_Services ● Time_/ Date Services ● Timer_Procedures ● Event_Manager ● Message_Exchange Manager Task Control Services Top of list Index page RTX_TASK_CREATE Create and start a task RTX_TASK_CREATE_WITHOUT_RUN Create a task RTX_END_EXEC End execution of a task by itself RTX_TASK_KILL Kill a task RTX_RESTART_TASK Trigger start of task execution RTX_TASK_DELETE Remove a task from the system RTX_GET_TASKID Get ID of the current task RTX_CHANGE_PRIO Change the priority of a task RTX_SLEEP_TIME Sleep for a specified time RTX_SLEEP_REQ Sleep until a wake request RTX_WAKEUP_TASK Wake a task which is sleeping RTX_SUSPEND_TASK Suspend a task RTX_RESUME_TASK Resume a task RTX_ACCESS_FILESYSTEM Enable file access for the calling task RTX_GET_TASK_STATE Get state of a task (task monitoring) RTX_GET_TASK_STATE_EXT Get state of a task (without task monitoring) RTX_GET_TASK_LIST Get list of tasks in system RTX_START_TASK_MONITOR Start task monitoring RTX_STOP_TASK_MONITOR Stop task monitoring Page 231 / 400
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IPC@CHIP Documentation index - SC12
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available from the download area of
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IPC@CHIP Documentation Index Introd
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1. Timer procedures must be impleme
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Top of list Index page Usage of the
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Top of list Index page Using Hardwa
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Top of list Index page 3. Since @CH
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Top of list Index page End of docum
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IPC@CHIP Documentation Index COMMAN
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Index page TYPE file Type a file. T
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Example rd temp Top of list Index p
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Top of list Index page ALE Enable/d
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Related Topics Top of list Index pa
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Top of list Index page Initial BATC
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Comments Example Make sure that oth
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Comments Top of list Index page tas
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CHIP.INI Documentation - SC12 @CHIP
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STDIO ● SERIAL_EXT_DMA ● SERIAL
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The new mode is shown on the consol
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Top of list Index page IP ADD_DEFAU
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Top of list Index page [PPPCLIENT]
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Example: REMOTEADDRESS=192.168.205.
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IDLETIME=500 By default, PPP server
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Top of list Index page PPP server c
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Comments Example: INITRETRIES0=2 Th
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[PPPSERVER] CTRLTIMEOUTx=timeout in
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PPPSERVER [PPPSERVER] HANGUPANSWERx
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Top of list Index page PPPSERVER [P
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Example: Top of list Index page FTP
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Top of list Index page FTP PASSWORD
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WEB [WEB] TEMPPATH=Name of a tempor
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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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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
Page 179 and 180: Top of list Index page UdpMib Comme
Page 181 and 182: Programming client server applicati
Page 183 and 184: RTOS API - SC12 @CHIP-RTOS V1.10 IP
Page 185 and 186: AH BX 0 (=RTX_SLEEP_TIME) Sleep tim
Page 187 and 188: Top of list Index page Interrupt 0x
Page 189 and 190: Return Value Comments DX=0 (always
Page 191 and 192: An out of range priority value (CX)
Page 193 and 194: Comments DX!=0 failure AX: contains
Page 195 and 196: BX ES:DI 0x19 (= RTX_RESERVE_RES) I
Page 197 and 198: Top of list Index page RTX_GET_SEM
Page 199 and 200: BX:SI Output Parameter: Pointer to
Page 201 and 202: ES:DI CX Output Parameter: Pointer
Page 203 and 204: Comments DX!=0 failure AX: contains
Page 205 and 206: The task name is not a null termina
Page 209 and 210: AH BX ES:DI DS:SI 0x40 (= RTX_CREAT
Page 211 and 212: Interrupt 0xAD service 0x43: RTX_WA
Page 213 and 214: ES:DI 0x46 (= RTX_FIND_EVENTGROUP)
Page 215 and 216: ES:DI Pointer to a 12 byte message
Page 217 and 218: Interrupt 0xAD service 0x55: RTX_FI
Page 219 and 220: Multitasking with @Chip-RTOS Some c
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Page 223 and 224: Suspended Free to run RTX_Resume_Ta
Page 225 and 226: Figure 1 ) Sleep Based Periodic Loo
Page 227 and 228: can potentially interrupt execution
Page 229: } } Figure 5 ) Protected Critical S
Page 233 and 234: Time / Date Services The following
Page 235 and 236: Top of list Index page is willing t
Page 237 and 238: system's maximum number of availabl
Page 239 and 240: Prior to making the RTX_TASK_CREATE
Page 241 and 242: B4: Message Exchange wait B5: -- no
Page 243 and 244: name or void huge MyTimerProc(unsig
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Page 247 and 248: RTOS Application Developers Note -
Page 249 and 250: DOS Interface Documentation - SC12
Page 251 and 252: Parameters AH DL 0x02 Character to
Page 253 and 254: AH 0x08 Return Value Comments Retur
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Page 259 and 260: Only ten DTA entries for user tasks
Page 261 and 262: Note: Top of list Index page In @CH
Page 263 and 264: Parameters AH CX 0x3C File attribut
Page 267 and 268: Top of list Index page Get/Set File
Page 269 and 270: BX DX Handle Device data Return Val
Page 271 and 272: A paragraph is 16 bytes in length.
Page 273 and 274: Comments Top of list Index page AX
Page 275 and 276: operations such as renaming, moving
Page 277 and 278: 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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