PowerQUICC Processors中的主题 Re: Need suggestions on MPC8377 reset problem. https://community.nxp.com/t5/PowerQUICC-Processors/Need-suggestions-on-MPC8377-reset-problem/m-p/198995#M161 <HTML><HEAD></HEAD><BODY>Are you sure? May be it is floating bug...</BODY></HTML> Thu, 06 Aug 2009 14:48:01 GMT gleb_itech 2009-08-06T14:48:01Z Need suggestions on MPC8377 reset problem. https://community.nxp.com/t5/PowerQUICC-Processors/Need-suggestions-on-MPC8377-reset-problem/m-p/198994#M160 <HTML><HEAD></HEAD><BODY><P>I have a failed board (others of the same design are working).&nbsp; The symptoms are that the MPC8377 comes out of reset, attempts to read the configuration words, but the DDR clocks are never turned on.&nbsp; After about 6 seconds, the /HRESET line goes low and the process repeats, continually.&nbsp; When we tried to connect via the emulator, we were unable to load the DDR memory, it was not configured even with Code Warrior.</P><P>&nbsp;</P><P>At one time, the board was operational, booting U-Boot and running LINUX.&nbsp; Any suggestions of what to look at?&nbsp;</P></BODY></HTML> Tue, 14 Jul 2009 20:00:52 GMT https://community.nxp.com/t5/PowerQUICC-Processors/Need-suggestions-on-MPC8377-reset-problem/m-p/198994#M160 mvonahnen 2009-07-14T20:00:52Z Re: Need suggestions on MPC8377 reset problem. https://community.nxp.com/t5/PowerQUICC-Processors/Need-suggestions-on-MPC8377-reset-problem/m-p/198995#M161 <HTML><HEAD></HEAD><BODY>Are you sure? May be it is floating bug...</BODY></HTML> Thu, 06 Aug 2009 14:48:01 GMT https://community.nxp.com/t5/PowerQUICC-Processors/Need-suggestions-on-MPC8377-reset-problem/m-p/198995#M161 gleb_itech 2009-08-06T14:48:01Z Re: Need suggestions on MPC8377 reset problem. https://community.nxp.com/t5/PowerQUICC-Processors/Need-suggestions-on-MPC8377-reset-problem/m-p/198996#M162 <HTML><HEAD></HEAD><BODY><P>This problem was resolved.&nbsp; I test pin was being held at an improper level during device reset, so it was going into a test mode.</P></BODY></HTML> Thu, 27 Sep 2012 16:31:01 GMT https://community.nxp.com/t5/PowerQUICC-Processors/Need-suggestions-on-MPC8377-reset-problem/m-p/198996#M162 mvonahnen 2012-09-27T16:31:01Z