Retrieves 8255 mode chip by chip.
Ret = DioGet8255Mode ( Id , ChipNo , CtrlWord )
Id
[ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short
]
Specify the device ID retrieved from DioInit.
ChipNo
[ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short
]
Specify the chip number of LSIi8255.
Chip number begins from 0 and increases by 1 every three ports.
CtrlWord
[ VB.NET: Short ] [ C, C++: short * ] [ C#: out short ] [ Python: ctypes.POINTER(ctypes.c_short)
]
Specify the control word. The setting value list of control word is shown
below.
D7 |
D6 |
D5 |
D4 |
D3 |
D2 |
D1 |
D0 |
Hex |
Port A |
Port C (High 4bit) |
Port B |
Port C (Low 4bit) |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
80 |
OUTPUT |
OUTPUT |
OUTPUT |
OUTPUT |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
81 |
OUTPUT |
OUTPUT |
OUTPUT |
INPUT |
1 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
82 |
OUTPUT |
OUTPUT |
INPUT |
OUTPUT |
1 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
83 |
OUTPUT |
OUTPUT |
INPUT |
INPUT |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
88 |
OUTPUT |
INPUT |
OUTPUT |
OUTPUT |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
1 |
89 |
OUTPUT |
INPUT |
OUTPUT |
INPUT |
1 |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
8A |
OUTPUT |
INPUT |
INPUT |
OUTPUT |
1 |
0 |
0 |
0 |
1 |
0 |
1 |
1 |
8B |
OUTPUT |
INPUT |
INPUT |
INPUT |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
90 |
INPUT |
OUTPUT |
OUTPUT |
OUTPUT |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
91 |
INPUT |
OUTPUT |
OUTPUT |
INPUT |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
92 |
INPUT |
OUTPUT |
INPUT |
OUTPUT |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
1 |
93 |
INPUT |
OUTPUT |
INPUT |
INPUT |
1 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
98 |
INPUT |
INPUT |
OUTPUT |
OUTPUT |
1 |
0 |
0 |
1 |
1 |
0 |
0 |
1 |
99 |
INPUT |
INPUT |
OUTPUT |
INPUT |
1 |
0 |
0 |
1 |
1 |
0 |
1 |
0 |
9A |
INPUT |
INPUT |
INPUT |
OUTPUT |
1 |
0 |
0 |
1 |
1 |
0 |
1 |
1 |
9B |
INPUT |
INPUT |
INPUT |
INPUT |
Please refer to the supplied manual of a board for details.
Ret [ VB.NET: Integer ] [ C, C++: long ] [ C#: int ] [ Python: ctypes.c_long ]
Definition |
Value [Dec] |
Description |
DIO_ERR_SUCCESS |
0 |
Normal completed. |
DIO_ERR_SYS_RECOVERED_FROM_STANDBY |
7 |
Execute DioResetDevice function because the device has recovered from standby mode. |
DIO_ERR_DLL_INVALID_ID |
10001 |
Invalid ID specified. |
DIO_ERR_DLL_CALL_DRIVER |
10002 |
Not call the driver (Failure on DEVICE I/O CONTROL). |
DIO_ERR_DLL_BUFF_ADDRESS |
10100 |
Invalid data buffer address. |
DIO_ERR_SYS_NOT_SUPPORTED |
20001 |
This board couldn't use this function. |
DIO_ERR_SYS_8255 |
20600 |
8255 chip number is outside of the range. |
The others (See also: Details of Error Code)
The default setting is that all ports are set to input at system startup. And after the control word has been set with DioSet8255Mode once, it becomes that set value.
To use this function, please execute DioInit first, and call it after setting I/O ports (I/O channels) with DioSet8255Mode().
Retrieves the setting value of LSIi8255 chip 0.
VB.NET |
Dim Ret As Integer |
C, C++ |
long Ret; |
C# |
int Ret; |
Python |
Ret = ctypes.c_long() |