Specifications

LOAD @I400 WITH @R0,2,4 STATUS 6 BYTE 0-0 ;
In order to provide a means to align received characters in the receive buffer from its top, any
SEND statement to the port will reset the count and put index to 0. If you don't actually wish
to send any message to the attached device, you can use SEND "" ;, an empty string.
With the LD88 for example, if you were interested in part of the 'ping' response, you would
use the SEND "" ; statement to set the counter & index to 0, then wait until you see that the
count is non-zero. Then access the received character array to pick out those of interest.
If other information from the LD88 is desired, you use the SEND statement to generate the
query message, then watch for the response as above. To provide enough time for this, the
'ping' has been slowed to once/second. (In some cases, it is possible to turn off the poll – see
individual driver documentation for information about this.)