Returns the specified group differential ports values.
Gx5642GetGroupDifferentialPort (nHandle, nGroup, pdwPortData, pnStatus)
Name |
Type |
Description |
nHandle |
SHORT |
Handle to a GX5642 board. |
nGroup |
SHORT |
Group value is as follows:0. GX5642_GROUP0 (channels 0 to 31)1. GX5642_GROUP1(channels 32 to 63) |
pdwPortData |
PDWORD |
Group’s differential ports values.Each of the 32 bits represents a channel in the group. Bit 0 is the first channel in the group and bit 31 is the last channel in the group.Bit low - differential channel port is logic low.Bit high - differential channel port is logic high. |
pnStatus
|
PSHORT |
Returned status: 0 on success, negative number on failure. |
The function returns the differential ports values for all the channels in the specified group.
For protection, by default all channels are disabled after power-up and reset. The channels can be enabled and or disabled by calling Gx5642SetChannelOutputState.
The following example returns group 0 Differential Ports values:
DWORD dwData;
Gx5642GetGroupDifferentialPort (nHandle, GX5642_GROUP0, &dwData, &nStatus);