i.MX ProcessorsのトピックRe: DATA_Abort exception https://community.nxp.com/t5/i-MX-Processors/DATA-Abort-exception/m-p/157171#M2507 <HTML><HEAD></HEAD><BODY><P>If&nbsp;image(.text section) included in the WEIM(ie. the&nbsp;pc(R15) will access the WEIM) and the WEIM external bus is not stable,&nbsp; the prefetch abort is expected.&nbsp;&nbsp;</P></BODY></HTML> Mon, 28 May 2012 08:25:40 GMT JerryFan 2012-05-28T08:25:40Z DATA_Abort exception https://community.nxp.com/t5/i-MX-Processors/DATA-Abort-exception/m-p/157170#M2506 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>i'm accessing a chip on the WEIM external bus, it is an asyncoronous access red and write of course.</P><P>Due to a problem on that chip in some situation the wait signal (DTACK) stay asserted for a long time, after 1024 AHBCLK cycle I should have a data_abort exception on the ARM, but sometimes instead to have such exception i have a prefetch abort exception....&nbsp;</P><P>Any idea?&nbsp;</P><P>it seems to be random... when i have the long wait i can have both exception....</P><P></P><P>Thanks</P></BODY></HTML> Fri, 27 Apr 2012 07:09:35 GMT https://community.nxp.com/t5/i-MX-Processors/DATA-Abort-exception/m-p/157170#M2506 OmarPighi 2012-04-27T07:09:35Z Re: DATA_Abort exception https://community.nxp.com/t5/i-MX-Processors/DATA-Abort-exception/m-p/157171#M2507 <HTML><HEAD></HEAD><BODY><P>If&nbsp;image(.text section) included in the WEIM(ie. the&nbsp;pc(R15) will access the WEIM) and the WEIM external bus is not stable,&nbsp; the prefetch abort is expected.&nbsp;&nbsp;</P></BODY></HTML> Mon, 28 May 2012 08:25:40 GMT https://community.nxp.com/t5/i-MX-Processors/DATA-Abort-exception/m-p/157171#M2507 JerryFan 2012-05-28T08:25:40Z