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Section 4 Serial Controller
4.45
MASK
The
MASK
command is used to mask the most significant bit (MSB) of serial
input data. Some serial host computers set the MSB (high bit) when using eight bit
serial data lengths. When the
MASK
ON
command is issued, each serial character
received is logically
AND
ed with
&H7F
(
127
decimal).
MASK
OFF
is the factory default. In default operation, all serial input data is
automatically masked with
&H7F
. The exception to this is any data which follows a
semi-colon (
;
), an apostrophe (
'
) or a quotation mark (
"
). After a
MASK
ON
command, all characters are masked.
The query option
MASK?
returns the state of the
MASK
command.
TYPE System command
SYNTAX
MASK
{[
ON
|
OFF
]}
RESPONSE None
MODE Any
BUS STATES None
QUERY The string MASK ON
or
MASK OFF
RESPONSE
EXAMPLE PRINT#1,"MASK ON"
- Analyzer488 1
- User's Manual 3
- Table of Contents 10
- Introduction 13
- Section 1 Introduction 14
- Analyzer RAM Error 20
- Analyzer ROM Error 20
- Analyzer NVRAM Error 21
- Serial Controller 21
- Instrument Simulator 21
- BUS 'A' 41 ¼ 21
- Getting Started 23
- Analyzer488 Rev 1.0 24
- BUS DCL 14 • 24
- Section 2 Getting Started 25
- LOCATION MESSAGE 25
- Config Reset? No 27
- Config Reset? Yes 27
- Trigger Sequence Flow Chart 35
- Handshake 42
- Front Panel Operation 47
- Factory Config? No 48
- Config? Front Panel 48
- LOCATION 49
- Invalid Key Press 53
- Save Macro? 54
- BUS ACG00 00 56
- When Completed? Stop 61
- Data Entry Keys 73
- Save Macro? X 74
- Saving to Macro X 74
- End Saving Keys 74
- Select Key for Help 74
- Cursor Keys 75
- Record Memory Erased 78
- Reset Memory? Yes 78
- Record Memory Reset 78
- Reference Set 79
- -SEARCH 79
- Not Available 79
- +Searching 79
- Trigger Not Found 79
- Pattern Not Found 80
- Last 00000 83
- Display Intensity 32 83
- Help Scroll Speed 6 83
- Match? Nul XXXXXXX 83
- Match? XXXXXXXXXXXXX 84
- # of Matches? 00001 84
- Trig Delay? 0000000 84
- Post Count? 00000 84
- When Complete? Stop 84
- Time 0.000 mSeconds 85
- Count 00000 Bytes 85
- Rate 0.000 B/sec 85
- Display Hex Data 86
- Display Binary Data 86
- Steps Per second 03 88
- Handshaking Off 88
- LISTEN TALK 89
- Printer Stop Bits? 2 91
- Printer Parity? None 91
- Printer Ctrl? RTS/CTS 91
- Print Terms? CR 91
- Printer Address? 16 91
- Print Terms? CR 92
- EOI ATN SRQ REN IFC 93
- Section 4 Serial Controller 100
- 110
- CONTROLLER 118
- HANDSHAKE 130
- LOCAL LOCKOUT 138
- PPOLL CONFIG 146
- PPOLL DISABLE 148
- PPOLL UNCONFIG 149
- ? (PRINT) 150
- RELATIVE 156
- SET RELATIVE 164
- SET TRIGGER 165
- UNASSERT 183
- Analyst488 Software 189
- Section 5 Analyst488 Software 190
- W3 Noise 240
- W11 f(t)=Sin(wt) 244
- Front Panel Keys 251
- Serial Controller Commands 255
- Instrument Simulator Commands 259
- Analyst488 Software Menus 263
- Analyzer488 Error Messages 265
- Sample BASIC Program 267
- IEEE 488 Primer 269
- Appendix G IEEE 488 Primer 270
- IEEE 488 Bus Structure 271
- Figure 4.1 271
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