[Lazarus] SdpoSerial Tx and Rx buffers?

[Hans-Peter Diettrich]

Bo Berglund schrieb:

> So it really looks like the WriteData *is* blocking...
> 
>> For that, you must break your transmission in small block and use the 
>> completion of each transfer to signal the progress.
> 
> Sadly this seems to be the case...

Even if it were non-blocking, a block is required when you try to 
overflow the output buffer.

DoDi