45300 Parallax Inc, 45300 Datasheet - Page 45
![BOARD PROTO SX48](/photos/9/25/92507/mfg_45300_sml.jpg)
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
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7.2
Comments are optional messages usually used to document the source code. They are ignored by the
assembler and may be placed almost anywhere in the program. A comment must be preceded by a
semicolon (;). The following demonstrates examples of comments.
Notice that a comment can be placed on the same line as an instruction (see the third line above). Since
the assembler ignores everything that appears to the right of a semicolon, a comment may only appear
on its own line or to the right of an instruction.
For debugging purposes, lines of code can be hidden from the assembler, or commented out, simply by
inserting a semicolon before the first character of the line.
7.3
Assembler directives are special instructions to the assembler to help define symbols, set device options
or indicate how the code should be assembled. Directives may appear within the source code, like
assembly instructions, however, since they are instructions to the assembler and not the SX
microcontroller, they are not actually assembled into the final machine language program. Table 5 –
SASM Directives, below, describes the available SASM Assembler directives.
Comments
Assembler Directives
; This program controls the GPX513v driver chip
;
mov counter, 120
;initialize loop counter
SX-Key/Blitz Development System Manual 2.0 Parallax, Inc. Page 45
7 The SASM Assembler
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