User's Manual

Boomer II User Manual & Integrator’s Guide ______________________________________________ SDK SCRAPI
BM210012WT27 135 Wavenet Technology
Input:
 None
Output:
 Return value = 0 Operation was successful
 Return value ≠ 0 Operation failed. Value specifies the error type

Send Data to a Radio Host
Applications can call this function to send data to a radio host. The
Host ID will automatically be inserted into the data header of the SDU
for message routing purposes.
Prototype:
int nclSendData(word *usSduTag, byte *szHostId, byte ucIdLen, byte
*ucData, int iDatLen, bool bResend);
Response:
The VDD will track the response with the Host ID and SDU tag will
post the response to the corresponding RX queue for that session. The
application is responsible for reading and processing the response on
the RX queue. By calling ‘nclReceiveData()’.
Description:
Send application data to the radio host identified by the host ID.
Input:
 usSduTag Pointer to a word where the SDU tag can be stored
 szHostId Pointer to a buffer specifying the Host identity. The Host ID is
typically 3 bytes in length for DataTac systems. The NCL API will
truncate Host ID’s longer than NCL_MAX_UH_LEN (63) bytes in
length.
 ucIdLen Total length of the session ID
 ucData Pointer to the data to be sent
 iDatLen Length of the data to be sent
 bResend Resend flag must be set to false, except if the packet of data is
being re-sent due to a failure of the previous send. Setting the
flag to true prevents the possibility of receiving duplicate packets
at the server application. This flag cannot be used for resending
data prior to the previous packet.