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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>Changing direction of P9 (Infineon C509L)</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/16364/changing-direction-of-p9-infineon-c509l</link><description> I&amp;#39;m trying to change direction of P9.0. 
I use the same instructions I previously used for P6 whith full success: 
 
 IP1 |= 0x80;
	DIR9 = 0xFE; 
but I&amp;#39;m not able to write a 1 on P9.0 
 
When I take a look on the disassembly window, I see that after</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator></channel></rss>