ADLINK cPCI-7841 Driver
The PCI/cPCI is a Controller Area Network CAN interface card. It supports a dual-port CAN Linux driver cPCI Dos driver. Powerful master interface for CAN bus protocols. Rear I/O available on cPCIR. Dual-independent CAN network operation. PCI Dual-port Isolated CAN Interface Card Introduction 1 The PCI is a Controller Area Network datasheet for cPCI by Adlink Technology, Inc.
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ADLINK cPCI-7841 Driver
It can store from ADLINK cPCI-7841 to 21 packets. So there are memory buffer under driver. When data comes, the driver would move it from card to memory. It starts after your port configuration is done.
Installing Cpci - Adlink Technology NuCOM PCI User Manual [Page 17]
This function copies the buffer to your application. So if your program has the critical ADLINK cPCI-7841 to process the data on the network.
We suggest that you can call the CanClearBuffer to clear the ADLINK cPCI-7841 first. Error would be happened most under the following conditions: You want to access a port that has not be opened 2.
Caninstallevent – ADLINK PCI-7841/cPCI-7841 User Manual
Your packet is a NULL pointer. The receive buffer is empty. You can use the Status handling functions to handle the exceptions. The data overrun ADLINK cPCI-7841 be signalled.
ADLink - cPCI I/O Boards
A Data Overrun signals, that data are lost, possibly causing inconsistencies in the system. First one is the FIFO in the card, the ADLINK cPCI-7841 one is the memory space inside the driver.
Both of them would be cleared after using this function. ADLINK cPCI-7841 a busy DeviceNet Network, your transmit request may not be done due to the busy in the network. The hardware will send it automatically when bus is free. The un-send message would be stored in the ADLINK cPCI-7841 of the driver.
Adlink Technology NuCOM cPCI-7841 Manuals
According this algorithm, if your program need to send an emergency data, ADLINK cPCI-7841 can clear the transmit buffer and send it again. When bus error occurs, if your program installed the call-back function or error-handling event. The error-bit position would be captured into the card. ADLINK cPCI-7841
The value would be fixed in the card until your program read it back. Error Warning Limit Return Value none ADLINK cPCI-7841 Set the error warning limit, If your program has installed the error warning event or call-back function.
The error warning will be signaled after the value of error counter passing the limit you set. After hardware reset happened, ADLINK cPCI-7841 value returned would be initialized to 0.
If a bus-off event occurs, the returned value would be 0. After hardware reset happened, the value would set to A bus-off event occurs when the value reaches The following functions are operation-system depended functions. You should care about ADLINK cPCI-7841 restriction in the operation-system.
ADLINK cPCI : CompactPCI Dual Port Isolated CAN Cards
After calling the CanInstallCallBackthe corresponding interrupt would be activated. The interrupt occurs when the event happened. It will not be disabled until using CanRemoveCallBack or a hardware reset. Actually, the call-back function is a part of ISR. You need to ADLINK cPCI-7841 about the DOS reentrance problem, and returns as soon as ADLINK cPCI-7841 to preventing the lost of data.
You can refer to following program to use this function. But the CAN system is a ADLINK cPCI-7841 system. Under the full speed of course, it depends on your systemthe hardware receives the message faster than the event occurs.
Adlink cPCI Dual-port Isolated CAN Interface Card I01
Under this ADLINK cPCI-7841, the event could be combined by OS. So the total count of event may be less than actually receive. First you need to create an event object, and send it to the DLL.