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<?xml-stylesheet type="text/xsl" href="https://community.arm.com/utility/feedstylesheets/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>LPC2148 assembly code. Trying to read data from read-write memory but Label showing blank data</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/36330/lpc2148-assembly-code-trying-to-read-data-from-read-write-memory-but-label-showing-blank-data</link><description> 
I am trying to copy data from LUT from one location and copying it
to another location. Here is the code 

 
AREA Program, CODE, READONLY
 EXPORT __main
 ENTRY

__main
 ldr r0, =SourceL ; Address of SourceL
 ldr r1, =DestinationL ; Address of DestinationL</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: LPC2148 assembly code. Trying to read data from read-write memory but Label showing blank data</title><link>https://community.arm.com/thread/131674?ContentTypeID=1</link><pubDate>Fri, 06 Apr 2018 00:53:54 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:f0dfb52f-4f88-4680-96c6-fc89fd51c565</guid><dc:creator>ARVIND SHRIVASTAVA</dc:creator><description>&lt;p&gt;&lt;p&gt;
Just tell me for this issue what needs to be done?&lt;/p&gt;

&lt;p&gt;
startup file is generated by KEIL and so is scatter file.&lt;/p&gt;

&lt;p&gt;
In which file I have to do the modifiction?&lt;/p&gt;

&lt;p&gt;
While using C this never occured.&lt;/p&gt;

&lt;p&gt;
I have experience in C but trying assembly for the first time.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LPC2148 assembly code. Trying to read data from read-write memory but Label showing blank data</title><link>https://community.arm.com/thread/129517?ContentTypeID=1</link><pubDate>Fri, 06 Apr 2018 00:50:09 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:338deb51-14a2-48cf-843e-892091b27ba5</guid><dc:creator>Andy Neil</dc:creator><description>&lt;p&gt;&lt;p&gt;
Some introductory books here:&lt;br /&gt;
&lt;b&gt;&lt;br /&gt;
&lt;a href="http://www.keil.com/books/armbooks.asp"&gt;http://www.keil.com/books/armbooks.asp&lt;/a&gt;&lt;br /&gt;
&lt;/b&gt;&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LPC2148 assembly code. Trying to read data from read-write memory but Label showing blank data</title><link>https://community.arm.com/thread/121309?ContentTypeID=1</link><pubDate>Thu, 05 Apr 2018 18:42:29 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:45095700-37d0-4af3-a087-e5e227733bb5</guid><dc:creator>ARVIND SHRIVASTAVA</dc:creator><description>&lt;p&gt;&lt;p&gt;
Thats only my question. How to do that? Thorough scatter file or
something else? I have to create a scatter file? By default keil
doesnt include it? Because I couldnt see it in the project. If not
the scatter file thn what?&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LPC2148 assembly code. Trying to read data from read-write memory but Label showing blank data</title><link>https://community.arm.com/thread/118783?ContentTypeID=1</link><pubDate>Thu, 05 Apr 2018 13:13:48 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:62e7ef12-24d8-4e9c-ad09-fedcf3b23972</guid><dc:creator>Westonsupermare Pier</dc:creator><description>&lt;p&gt;&lt;p&gt;
Then take this as an opportunity to read some of the documentation
rather than have me read it to you, critical thinking is not a
scripted exercise.&lt;/p&gt;

&lt;p&gt;
Take the data you currently expect to appear in RAM, and move
those lines to the ROM (Read Only) section&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LPC2148 assembly code. Trying to read data from read-write memory but Label showing blank data</title><link>https://community.arm.com/thread/94398?ContentTypeID=1</link><pubDate>Thu, 05 Apr 2018 11:44:30 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:51393b28-39a5-4b8a-8810-ed63c76ed119</guid><dc:creator>ARVIND SHRIVASTAVA</dc:creator><description>&lt;p&gt;&lt;p&gt;
Please guide me how to do that? I am new to assembly coding.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: LPC2148 assembly code. Trying to read data from read-write memory but Label showing blank data</title><link>https://community.arm.com/thread/86326?ContentTypeID=1</link><pubDate>Thu, 05 Apr 2018 11:37:35 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:10d7e88d-05c2-4d6b-9437-57ef4c540433</guid><dc:creator>Westonsupermare Pier</dc:creator><description>&lt;p&gt;&lt;p&gt;
&amp;gt;&amp;gt;Why data in LUT is not shown in the memory location?&lt;/p&gt;

&lt;p&gt;
Because RAM doesn&amp;#39;t magically get initialized. You&amp;#39;d need to
unpack the load region, or place all the constants in ROM and copy
them into RAM yourself.&lt;/p&gt;
&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>