From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Laman Date: Thu, 29 Jul 2004 21:06:05 -0400 Subject: [U-Boot-Users] Software emulation exception on entry into RAM Message-ID: <41099EFD.7060702@rochester.rr.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de I am implementing u-boot 1.0.2 on a custom 860P board and am getting a Software Emulation Exception (as reported by BDI2000) at the first access of RAM after code is copied to RAM. The SDRAM setup was copied from a working PSOS+ load running on this board. Successful burst reads have been verified with a logic analyzer. I can't easily get access to the logic analyzer for debugging u-boot. I have defined SRAM to be at 0x0 and I get the same results. I know I am not using the CVS version of u-boot, I am using what was supplied w/ ELDK 3.0. I have searched the list and have found cases where SDRAM initialization/burst read configurations have been blamed. Based on success w/ PSOS+, I don't think this is my problem. Any ideas? -Tom Laman