Post by thread:[EE]: Memory address lines

Hi all.. I am having a bit of a problem.. I am trying to make a board with an arm chip on it, but that isn`t important what is is the memory error patern I am getting. I get repeating patterns in the memory every 256 bytes... I.e 0-127 is the same as 128-255 256-511 is the same as 512 - 639.. or in hex 0x000-0x100 is the same as 0x100-0x200 0x200-0x300 is the same as 0x300-0x400 but the blocks are different.. Any help appreciated this is driving me crazy. Andy.. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

Your A7 address bit is stuck. Bob Ammerman RAm Systems (contract development of high performance, high function, low-level software) -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

Somebody call me a pillock (idiot for the Americans).. I had gone through the memory lines as that was my first thought, obviously not well enough.. Withs bob`s prompting I took a closer look! everythings fine now.... Andy.. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

>I had gone through the memory lines as that was my first thought, obviously >not well enough.. Withs bob`s prompting I took a closer look! everythings >fine now.... Its good to pay special attention to the adress and data lines when you have problems like this. Someday a client called me telling that his printer was printing strange characters, and I asked him, to try to print an entire alphabet. When he read what the printer said, I told him the problem was in the Nth bit of the parallel port, and he got surprised how I got it so fast. It's darn simple, it's just a matter of knowing binary. --------------8<-------Corte aqui-------8<-------------- All the best!!! Alexandre Souza spam_OUTxandinhoTakeThisOuTinterlink.com.br Linux User #85093 --------------8<-------Corte aqui-------8<-------------- -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics