USBSEND


Synopsis


Send an object through the USB link

Stack Diagram


Input Stack Output Stack
O 1/0
Level 1 Level 1

Legend

Type Command
Parallel list processing Group 5
Affected by flags -47 Automatic reception and execution of data sent via USB

Description


The USBSEND command sends an object to another calculator using the USB link, provided the connection has been successufully negotiated. If the transfer succeeds USBSEND will leave 1 on the stack, otherwise it will leave 0.

The setting of flag -47 on the destination machine has an effect on USBSEND on the source machine, because the transfer queue can manage just one object at a time: until the object currently sent is not received by the destination calc any subsequent transfer will fail.

Compatibility


This command is new in newRPL and does not exist in userRPL.

Usage


The following program

«  @@ Make a list with value and variable name and send it
  2 →LIST
  DO
    DUP 
  UNTIL
    USBSEND
  END
  DROP 
  
  @@ Write a program to explode the list and do 'STO' in  the other calc...
  «
    OBJ→ DROP STO 
  »

  @@ ...and send it!
  DO
    DUP 
  UNTIL
    USBSEND
  END
  DROP 
»

executes a STO through USB. See USBRECV for implementation of a USB RCL.

Related Commands


USB Communications 8 NEW

Command Short Description
USBSTATUS Get status of the USB driver NEW
USBRECV Receive an object through USB link NEW
USBSEND Send an object through the USB link NEW
USBOFF Disable USB port NEW
USBON Enable USB port NEW
USBAUTORCV Receive an object and execute it NEW
USBARCHIVE Create a backup on a remote machine NEW
USBRESTORE Restore a backup from a remote machine NEW
  • manual/chapter6/usb/cmd_usbsend.txt
  • Last modified: 2019/11/02 15:52
  • by jojo1973