45300 Parallax Inc, 45300 Datasheet - Page 53
![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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7.3.11 The ID Directive
The ID (identification) directive is used to write up to eight bytes of text into the ID word of the SX chip.
This is used to record a version number or other unique identification for the code. This ID word can be
read out of the SX chip at any time, regardless of the code protect setting. The line below will write
GPXv2.1 into the ID word:
7.3.12 The IF…ELSE…ENDIF Directive
The IF...ELSE directive is used to create conditional assembly blocks. A conditional assembly block is
source code that is assembled only if the specified condition is true; otherwise, the code block is ignored
by the assembler. Conditional assembly allows for easy code customization for multiple applications.
For example, it might be necessary to produce a number of related products all based upon the same
main source code but each having a small portion of unique code. The syntax for the IF...ELSE directive
is:
Note that the ELSE block is optional and the ENDIF is required to end the conditional block. The
comparison operators for the condition argument are listed in Table 8 – Comparison Operators, below.
ID
IF
{ELSE
ENDIF
‘GPXv2.1’
condition
codeblock
codeblock}
Table 8 – Comparison Operators
Symbol
<>
<=
>=
=
<
>
SX-Key/Blitz Development System Manual 2.0 Parallax, Inc. Page 53
Operation
Equal
Not equal
Less than
Greater than
Less than or equal
Greater than or equal
7 The SASM Assembler
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