Dear Sirs, Mr. Coppi! ...I use the CAN-Module of a CA-step. Because everything was fine using the Board, I burned it without looking at the errata sheed...I was surprised at the result! Now I want to please You help me avoid another mistake. The behavior can be avoided if a message object is not updated by software when a transmission of the corresponding message object is pending (TXRQ element is set) and the CAN module is active (INIT = 0). Does that mean, if I would disable the CAN module each time I change something (data) in an object and enable it after that everything will be o.K.? The nodes in the CAN system ignore the remote frame with the identifier=0 and no data frame is triggered by this remote frame. Is this another or additional possibility? Is there a way to disable only the identifier '0'? I'm not so sure if I did understand the errata well, so please don't wonder about this questions. Do You know about a distributor who could have a flash device of the C164? (It's really expensive for me to burn them so often and this could prevent al least wrong startup configurations other mistakes which are not step-specific?!) Thanks a lot for helping me hannes P.S. why differs the behaviour using the RAM of the Board instead of OTP??
...and that is the Memory map of the map file: MEMORY MAP OF MODULE: ARNE2-270205_CA (HIWI_CAN) START STOP LENGTH TYPE RTYP ALIGN TGR GRP COMB CLASS SECTION NAME ===================================================================================== 000000H 000003H 000004H --- --- --- --- --- --- * INTVECTOR TABLE * 000004H 000005H 000002H XDATA REL WORD --- --- GLOB --- ?C_INITSEC 000008H 00000BH 000004H --- --- --- --- --- --- * RESERVED MEMORY * 00000CH 000011H 000006H CONST ABS WORD --- --- PRIV --- ?C_CLRMEMSEC 000088H 00008BH 000004H --- --- --- --- --- --- * INTVECTOR TABLE * 000090H 000093H 000004H --- --- --- --- --- --- * INTVECTOR TABLE * 0000ACH 0000AFH 000004H --- --- --- --- --- --- * RESERVED MEMORY * 000100H 000103H 000004H --- --- --- --- --- --- * INTVECTOR TABLE * 000104H 0001C1H 0000BEH CODE REL WORD --- --- PRIV ICODE ?C_STARTUP_CODE 0001C2H 00049BH 0002DAH CODE REL WORD --- --- PUBL NCODE ?PR?HIWI_CAN 00E000H 00E1FFH 000200H DATA REL WORD --- --- PUBL NDATA ?C_USERSTACK 00E200H 00E20FH 000010H DATA REL WORD --- --- PUBL NDATA0 ?ND0?HIWI_CAN 00FB00H 00FBFFH 000100H --- --- --- --- --- --- * SYSTEM STACK * 00FC00H 00FC1FH 000020H DATA --- BYTE --- --- --- *REG* ?C_MAINREGISTERS ...the Target Classes, defined in Keil is: ICODE (0x0-0x7FFF), NCODE (0x0-0x7FFF), NCONST (0x0-0x7FFF), NDATA (0xE000-0xE7FF, 0xF600-0xFDFF), NDATA0 (0xE000-0xE7FF, 0xF600-0xFDFF), option is 'using Memory Layout from target dialog' Probably i'm wrong, but the DATA section should start at 0xF000 and end at maximum 0xFFFF???? (User manual v3.1,[3-2],line 2). How is it to define those sections, i used what i've got. If all this gets on Your nerves, ignore it! hannes