Measurement-computing Micro 488/EX rev.2.1 Uživatelský manuál Strana 100

  • Stažení
  • Přidat do mých příruček
  • Tisk
  • Strana
    / 218
  • Tabulka s obsahem
  • KNIHY
  • Hodnocené. / 5. Na základě hodnocení zákazníků
Zobrazit stránku 99
Section 5 Command Descriptions
5.30
ENTER (Controller mode)
The
ENTER
command reads data from the IEEE bus. If a device address (with
optional secondary address) is specified, that device will be addressed to talk. If no
address is specified, the Micro488/EX must already be configured to receive data,
either as a result of an immediately preceding
ENTER
command, or as a result of a
SEND
sub-command. A time-out error will occur (if enabled) if the Micro488/EX does
not receive a data byte within the time out period after issuing the
ENTER
command.
If the character count,
count
, is specified, then exactly that number of characters
will be read from the device with the serial output terminators appended. Otherwise,
ENTER
terminates reception on detection of the line feed (LF) character, which may be
overridden by specifying the terminator in the ENTER command.
If a terminator,
term
, option is specified, all CR and LF characters in the input
data are unconditionally discarded. When the specified terminator is detected, it is
discarded and replaced with the serial terminator(s) before being returned to the serial
host. The optional terminator applies ONLY to the
ENTER
command it is sent with.
The terminator returns to a Line Feed on subsequent
ENTER
commands.
If the
EOI
option is specified, all characters are returned to the host until the
EOI
line is detected. The character sent with
EOI
asserted is also returned followed by the
serial output terminator(s).
SYNTAX ENTER[addr][#count|term|EOI|;count|;term|;EOI]
or
EN[addr][#count|term|EOI|;count|;term|;EOI]
addr
is the IEEE bus device address.
count
is the number of characters to
ENTER
.
term
and
EOI
override the normal IEEE bus input LF terminator.
RESPONSE Device-dependent data. If
count
is specified, then
count
characters
will be returned followed by the serial output terminators. Otherwise
the response ends when the IEEE bus input terminator is detected and
the serial output terminators are appended to the returned data.
Zobrazit stránku 99
1 2 ... 95 96 97 98 99 100 101 102 103 104 105 ... 217 218

Komentáře k této Příručce

Žádné komentáře