45300 Parallax Inc, 45300 Datasheet - Page 52
45300
Manufacturer Part Number
45300
Description
BOARD PROTO SX48
Manufacturer
Parallax Inc
Type
MCUr
Specifications of 45300
Contents
Board
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
SX48
For Use With
130-28029 - KIT PARTS SMART SENSORS45111 - MANUAL FOR SX-KEY/BLITZ VER. 2.028850 - CARRIER BOARD BOARD OF EDU USB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
453001
Manufacturer:
LITTELFUSE/力特
Quantity:
20 000
Company:
Part Number:
453002
Manufacturer:
LITTELFU
Quantity:
1 000
- Current page: 52 of 184
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7 The SASM Assembler
7.3.8
The ERROR directive emits a user-defined message for this source code line. The syntax for the ERROR
directive is:
During assembly, SASM performs two passes through the source code. The optional first parameter can
be used to control the type of message, and in which pass it shall be emitted.
P1 and P2 select the first and second pass; when the parameter is missing, pass 2 is the default. W
defines a warning message, and C defines a comment. When W and C are omitted, the message will be
an error. Assembly is stopped on error messages, but it continues on warnings and comments. Errors
and warnings are displayed in the status area if the SX-Key software, where comments are only placed
in the listing file.
Examples:
User-defined errors are particularly useful to provide usage checking for complex macros.
7.3.9
The FREQ (frequency) directive is used to set the frequency (in Hz) of the SX-Key’s internal
programmable oscillator to be used during debugging. The syntax for the FREQ directive is:
Note that frequency can be any number from 400000 to 110000000. Additionally, underscore characters
can be used to help make the number more readable, as in 50_000_000, which is 50 MHz.
7.3.10 The __FUSE and __FUSEX Directives
These two directives allow defining explicit expression values for the two SX configuration registers,
FUSE and FUSEX (note the two leading underscores in front of the directive names). It is not
recommended to use these directives for setting the fuse bits directly. Instead, use the various other
directives to configure the SX chip according to the needs of your application.
Page 52 SX-Key/Blitz Development System Manual 2.0 Parallax, Inc.
ERROR
The ERROR Directive
The FREQ Directive
ERROR
ERROR P1
ERROR P1W
ERROR P1C
ERROR P2
ERROR P2W
ERROR P2C
FREQ
[P1|2[W|C]]“<string>”
“Message”
“Message”
“Message”
“Message”
“Message”
“Message”
“Message”
frequency
; Pass 2 error
; Pass 1 error
; Pass 1 warning
; Pass 1 comment
; Pass 2 error (same as the default)
; Pass 2 warning
; Pass 2 comment
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