Get the status of the specified channel.
Ret = CanGetChannelStatus ( Id , ChannelNo , ChannelStatus , TxErrorCount , RxErrorCount)
Id
[ C, C++: short ] [ Python: ctypes.c_short ]
Specify the device ID retrieved from CanInit.
ChannelNo
[ C, C++: unsigned short ] [ Python: ctypes.c_ushort ]
Specify the channel number.
ChannelStatus [
C, C++: unsigned short * ] [ Python: ctypes.POINTER(ctypes.c_ushort) ]
Get the status of the specified channel.
Definition |
Value |
Description |
CCAN_CH_STATUS_ERR_ACTIVE |
0x0000 |
Error active |
CCAN_CH_STATUS_ERR_PASSIVE |
0x0001 |
Error passive |
CCAN_CH_STATUS_BUS_OFF |
0x0002 |
Bus off |
TxErrorCount [
C, C++: unsigned short * ] [ Python: ctypes.POINTER(ctypes.c_ushort) ]
Get the send error count.
RxErrorCount [
C, C++: unsigned short * ] [ Python: ctypes.POINTER(ctypes.c_ushort) ]
Get the reception error count.
Ret [ C, C++: long ] [ Python: ctypes.c_long ]
Definition |
Value |
Description |
CAN_ERR_SUCCESS |
0 |
Normality completion |
CAN_ERR_DLL_INVALID_ID |
10001 |
Invalid ID specified. |
CAN_ERR_DLL_CALL_DRIVER |
10002 |
Driver can't be called (Failed in the ioctl). |
CAN_ERR_SYS_CH_NO |
20101 |
Channel number is outside the settable range |
The others (See also: Details of Error Code)
None
Get the status of the specified channel.
Get the status of ChannelNo = 1.
C, C++ |
long Ret; unsigned short TxErrorCount; unsigned short RxErrorCount; Ret = CanGetChannelStatus
( Id , 1 , &ChannelStatus , &TxErrorCount ,
&RxErrorCount ); |
Python |
Ret = ctypes.c_long() ChannelStatus = ctypes.c_ushort() TxErrorCount = ctypes.c_ushort() RxErrorCount = ctypes.c_ushort()
Ret.value = ccan.CanGetChannelStatus ( Id , 1 , ctypes.byref(ChannelStatus) , ctypes.byref(TxErrorCount) , ctypes.byref(RxErrorCount) )
|
CanBusConnect, CanBusDisconnect