ColdFire/68K Microcontrollers and Processors中的主题 MCF5475CFE PCI Controller https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5475CFE-PCI-Controller/m-p/199382#M9066 <HTML><HEAD></HEAD><BODY><DIV><DIV class="postbody">For a breadboard we are designing, we are using 2 Fire Engine modules mounted on a host board. The final design will be using the PCI bus for communication between Coldfire processors. I would like to connect both Fire Engine MCF5475s to the same PCI bus on the host board, but have encountered two issues.&nbsp;&nbsp;&nbsp;</DIV><DIV class="postbody">1.&nbsp; The PCI clock for the FE is supplied by the clock on board.&nbsp;&nbsp; I don't see a way to provide an outside clock source, so cannot put both processors on the same PCI clock source.</DIV><DIV class="postbody">2.&nbsp; The PCI_IDSEL line is hardwired to PCI_AD16.&nbsp;&nbsp; (This is used for Type 0 Configuration).&nbsp; I think that this can be overcome by software though, which would be okay for breadboard purposes.</DIV><DIV class="postbody">&nbsp;</DIV><DIV class="postbody">Any suggestions on how to get around the clock issue?</DIV></DIV></BODY></HTML> Wed, 05 Nov 2008 01:12:38 GMT mniuser 2008-11-05T01:12:38Z MCF5475CFE PCI Controller https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5475CFE-PCI-Controller/m-p/199382#M9066 <HTML><HEAD></HEAD><BODY><DIV><DIV class="postbody">For a breadboard we are designing, we are using 2 Fire Engine modules mounted on a host board. The final design will be using the PCI bus for communication between Coldfire processors. I would like to connect both Fire Engine MCF5475s to the same PCI bus on the host board, but have encountered two issues.&nbsp;&nbsp;&nbsp;</DIV><DIV class="postbody">1.&nbsp; The PCI clock for the FE is supplied by the clock on board.&nbsp;&nbsp; I don't see a way to provide an outside clock source, so cannot put both processors on the same PCI clock source.</DIV><DIV class="postbody">2.&nbsp; The PCI_IDSEL line is hardwired to PCI_AD16.&nbsp;&nbsp; (This is used for Type 0 Configuration).&nbsp; I think that this can be overcome by software though, which would be okay for breadboard purposes.</DIV><DIV class="postbody">&nbsp;</DIV><DIV class="postbody">Any suggestions on how to get around the clock issue?</DIV></DIV></BODY></HTML> Wed, 05 Nov 2008 01:12:38 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5475CFE-PCI-Controller/m-p/199382#M9066 mniuser 2008-11-05T01:12:38Z Re: MCF5475CFE PCI Controller https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5475CFE-PCI-Controller/m-p/199383#M9067 <HTML><HEAD></HEAD><BODY>My comment isn't specifically related to you're question, but since you are using PCI on the fireengines please read the release note (the section on PCI) in the latest BSP.<BR /><DIV></DIV></BODY></HTML> Wed, 05 Nov 2008 01:36:18 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5475CFE-PCI-Controller/m-p/199383#M9067 kmahan 2008-11-05T01:36:18Z