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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>Help needed for LPC915 operating as Slave on I2C...</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/20318/help-needed-for-lpc915-operating-as-slave-on-i2c</link><description> Hello, 
 
I know this might not be the best place to ask, but we are kind of desperate ! 
 
I have a system with a LPC2148 ARM7 and a LPC915 (operating as a I2C slave to the &amp;#39;2148) and I need to get the LPC915 to work... I have other devices on my I2C</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator><item><title>RE: Help needed for LPC915 operating as Slave on I2C...</title><link>https://community.arm.com/thread/134778?ContentTypeID=1</link><pubDate>Mon, 26 Jun 2006 16:44:33 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:7dafa5c1-0a5a-4776-beaa-b8d7fedba941</guid><dc:creator>Carsten Groen</dc:creator><description>&lt;p&gt;Perfect !&lt;br /&gt;
I read thru the I2C section on the &amp;#39;668 device which helped me a great deal understanding the I2C controller (which is described in much more detail in the &amp;#39;668 manual)&lt;br /&gt;
&lt;br /&gt;
I can now both read and write data using the LPC2148 as a master, and the LPC915 as a slave (running 350 KHz on the SCL line).&lt;br /&gt;
&lt;br /&gt;
Regards and thanks,&lt;br /&gt;
Carsten&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Help needed for LPC915 operating as Slave on I2C...</title><link>https://community.arm.com/thread/123302?ContentTypeID=1</link><pubDate>Mon, 26 Jun 2006 12:53:59 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:91d2449a-c3d8-4772-b57b-dcec81fa0ac6</guid><dc:creator>erik  malund</dc:creator><description>&lt;p&gt;download the datasheet for the Philips P89C668, except for oscillator setup the IIC is identical to the LPC (and the SILabs derivatives - NOT the deviates) and explained in excruciating detail.  I would have spent much more time on LPC IIC had I not been aware of this.&lt;br /&gt;
&lt;br /&gt;
Erik&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Help needed for LPC915 operating as Slave on I2C...</title><link>https://community.arm.com/thread/112174?ContentTypeID=1</link><pubDate>Mon, 26 Jun 2006 11:32:59 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:9a02e78a-ceba-487d-b427-c59b2e2d7f05</guid><dc:creator>erik  malund</dc:creator><description>&lt;p&gt;&lt;i&gt;Erik, do you have a private email&lt;br /&gt;
address ?&lt;/i&gt;&lt;br /&gt;
I do, but find it wrong to exchange techical info outside the forum.  However, If you want to discuss something else it is erikm@digrec.com&lt;br /&gt;
&lt;br /&gt;
Erik&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Help needed for LPC915 operating as Slave on I2C...</title><link>https://community.arm.com/thread/112179?ContentTypeID=1</link><pubDate>Mon, 26 Jun 2006 11:04:22 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:b7c170e4-b947-4b7c-8381-4def2ce41579</guid><dc:creator>Carsten Groen</dc:creator><description>&lt;p&gt;Hmm,&lt;br /&gt;
it might also be the code on 2148 that is the cause of the error, I use the code to talk with a DS2745 (fuelgauge) and a PCA9535 though without problems....&lt;br /&gt;
&lt;br /&gt;
Carsten&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Help needed for LPC915 operating as Slave on I2C...</title><link>https://community.arm.com/thread/98218?ContentTypeID=1</link><pubDate>Mon, 26 Jun 2006 10:58:07 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:74669dff-478d-4481-8c32-431f6b91acd4</guid><dc:creator>Carsten Groen</dc:creator><description>&lt;p&gt;Hi Erik,&lt;br /&gt;
&lt;br /&gt;
&amp;quot;ja jeg er :o)&amp;quot;&lt;br /&gt;
&lt;br /&gt;
OK, I have been &amp;quot;fooling&amp;quot; around with the I2C isr routine in the LPC915, and it seems like when I try to do a simple &amp;quot;write 1 byte&amp;quot; from the 2148, I get a status 0x00 in the ISR.....&lt;br /&gt;
&lt;br /&gt;
Erik, do you have a private email address ?&lt;br /&gt;
&lt;br /&gt;
Regards,&lt;br /&gt;
Carsten&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Help needed for LPC915 operating as Slave on I2C...</title><link>https://community.arm.com/thread/87784?ContentTypeID=1</link><pubDate>Mon, 26 Jun 2006 10:46:39 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:1cc310a2-58f6-4bfe-9fd6-6980a6545798</guid><dc:creator>erik  malund</dc:creator><description>&lt;p&gt;addition to the above:&lt;br /&gt;
I have, when using the CodeArchitect code the first time used it &amp;#39;as is&amp;#39; then gradually, while ensuring functionality at regular intervals, changing it to what I actually needed (switches inside the ISR and such).&lt;br /&gt;
&lt;br /&gt;
&amp;quot;Carsten Groen&amp;quot;, you Danish?&lt;br /&gt;
&lt;br /&gt;
Erik&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Help needed for LPC915 operating as Slave on I2C...</title><link>https://community.arm.com/thread/46287?ContentTypeID=1</link><pubDate>Mon, 26 Jun 2006 10:41:03 GMT</pubDate><guid isPermaLink="false">dd9e70c8-6d3c-4c71-b136-2456382a7b5c:c6e4f47a-ffa6-4193-a67a-029a2212c3b0</guid><dc:creator>erik  malund</dc:creator><description>&lt;p&gt;i have LPB93x slaves working with no problem using ESacademy code as a base.  &amp;quot;a base&amp;quot; does not refer to the esacademy code not working, just not &amp;#39;as I want it to look&amp;#39;.&lt;br /&gt;
&lt;br /&gt;
Erik&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>