Receiving data via TINA

Hi,

The Doc's in this area do not say anything and the examples do not show actual reception of data.
I have tried looking at the Wiznet Server examples and these make sense to me but do not apply to the TINA.

1) How do I receive data in via the TINA interface.

2) What is the difference between TinaRxStat and TinaPacketReceived

3) How do I check to find the status of the connection state?
I tried "ErrorState" but do not get valid status reported back.


I can transmit data to the PC and have actually received it
But it would be nice to know that I have actually established a connection to a PC.

Slightly different question. Why use a different Port for Tx then Receive? Why not the same port in & out?

Hello Frank,
Hello Neil,

yes, UDP has no connection state like TCP/IP. As Frank said, with xUDP you
can find out that the recepient is not reachable. With standard UDP this is not
possible. It is the job of the application to establish a "connection".

TinaRxStat and TinaPacketReceived are similar. The first doesn't change anything
in the Tina Stack. The second one changes the state of the stack.

The first one should be used for polling. The second one is the first to be used
when receiving a packet.

rolf

Hello Neil,

with PacketReceived an internal state is set that (when true) the next access
will be the data read operation. The TinaRxStat doesn't disable interrupts, the
packetreceived does.

The TINA automatically transfers the received data to you buffer in the app
when ResumeReceive was previously executed. Your data then is in your
RxBuffer.

rolf

Hello Neil,

"ResumeReceive" tells the TINA that the present data in the buffer is processed
now and can be overwritten by a new packet. It means "the application is ready
to receive a new packet now".

Then polling the TinaRxStat returns the info if there is a new packet in the
buffer.

rolf