You probably have to make your own protocol and communicate between the two micros.
Each communications packet having something like: 1. Command (Read/Write) 2. Address (Where to read / write) 3. Data 4. CRC (packet check sum to ensure integrity of command, address and data ) Irvan Nasrullah wrote: > I want to erase,write and read data program(PEROM) controller target > (AT89S51 and AT89S52) with Microcontroller Master(AT89S51). How to do > it(Source code)? Any body help me? > |================| |================| > | | > | | > | P1.5 |---------------> > |MOSI(P1.5) | > | P1.6 |<--------------- > |MISO(P1.6) | > | P1.7 |---------------> |SCK > (P1.7) | > | | > | | > | | > | | > |Microcontroler | > |Microcontroler | > |Master | > |Target | > |AT89S51 | > |(AT89S51, | > | | | > AT89S52) | > | | > | | > | | > | | > |================| |================| > thx > irvan > > ------------------------------------------------------------------------ > Yahoo! oneSearch: Finally, mobile search that gives answers > <http://us.rd.yahoo.com/evt=48252/*http://mobile.yahoo.com/mobileweb/onesearch?refer=1ONXIC>, > > not web links. > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > ------------------------------------------------------------------------ > > _______________________________________________ > Sdcc-user mailing list > Sdcc-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/sdcc-user > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Sdcc-user mailing list Sdcc-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sdcc-user