Argox PA-20 Basic Programming Manual - Manual (Page 104)

PT-Basic Programming Manual Ver. 1.00 103/143
3.20 USB commands
USB_OPEN
Purpose： To initialize and enable USB port.
Syntax： USB_OPEN
Example： USB_OPEN
Description： Using USB_OPEN command can initialize and enable the
USB port.
USB_CLOSE
Purpose： To close the USB port.
Syntax： USB_CLOSE
Example： USB_CLOSE
Description： Using USB_CLOSE command can disable and suspend the
USB port.
USB_READ$
Purpose： To read specific number of bytes from USB port.
Syntax： A$=USB_READ$(N%)
Example： KEY$=USB_READ$(1)
Description： A$ is a string variable to be assigned to the data.
N% is an integer variable indicating number of bytes to be
read from USB port.
USB_WRITE
Purpose： To write specific number of bytes to the PC side.
Syntax： USB_WRITE(A$ , N%)
Example： USB_WRITE(A$,100)
Description： A$ is a string variable indicating the data is to be sent.
N% is an integer variable indicating number of bytes to be
writen to USB port.