8-bit MicrocontrollersのトピックRe: EEPROM in flash https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127691#M1449 <HTML><HEAD></HEAD><BODY>I need to emulater EEPROM also. The previous document is nice but does not have code for load leveling. I would think if we had the source code for any of the 908s it would be easy to adapt to a specific device.<BR /><BR />gk</BODY></HTML> Fri, 24 Mar 2006 01:36:41 GMT gregk 2006-03-24T01:36:41Z EEPROM in flash https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127687#M1445 <HTML><HEAD></HEAD><BODY><DIV>Hello, I need a routine wirted in c to emulate eeprom in flash memory, someone can help me?</DIV><DIV>&nbsp;</DIV><DIV>Regards</DIV></BODY></HTML> Wed, 01 Mar 2006 07:56:50 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127687#M1445 ppcco 2006-03-01T07:56:50Z Re: EEPROM in flash https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127688#M1446 <HTML><HEAD></HEAD><BODY><DIV>Hi,</DIV><DIV>It depends on the 68HC08 familly you use...</DIV><DIV>Some ref. are embedded routines to do this (KX, ..).</DIV><DIV>&nbsp;</DIV><DIV>&nbsp;</DIV></BODY></HTML> Wed, 01 Mar 2006 16:08:17 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127688#M1446 yb 2006-03-01T16:08:17Z Re: EEPROM in flash https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127689#M1447 <HTML><HEAD></HEAD><BODY>There is a C reference project written by Metrowerks to do this. It's for a different processor but it work.</BODY></HTML> Wed, 08 Mar 2006 02:11:09 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127689#M1447 irob 2006-03-08T02:11:09Z Re: EEPROM in flash https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127690#M1448 <HTML><HEAD></HEAD><BODY>I just posted over on another thread, but here it is again...<BR /><BR />I just got some new info from my local distributor about updated Freescale docs:<BR /><BR /><A href="http://www.freescale.com/files/microcontrollers/doc/app_note/AN1831.pdf?srch=1" rel="nofollow" target="_blank">AN1831</A> using MC68HC908 On-Chip FLASH Programming Routines<BR /><A href="http://www.freescale.com/files/microcontrollers/doc/app_note/AN2874.pdf?srch=1" rel="nofollow" target="_blank">AN2874</A> Using M68HC908 ROM-Resident Routines<BR /><A href="http://www.freescale.com/files/microcontrollers/doc/app_note/AN2874SW.zip?srch=1" rel="nofollow" target="_blank">AN2874SW</A> CodeWarrior 5 demo software for both the HC908QY4 and HC908LJ12<BR /><BR />Looks promising...</BODY></HTML> Fri, 24 Mar 2006 01:09:12 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127690#M1448 irob 2006-03-24T01:09:12Z Re: EEPROM in flash https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127691#M1449 <HTML><HEAD></HEAD><BODY>I need to emulater EEPROM also. The previous document is nice but does not have code for load leveling. I would think if we had the source code for any of the 908s it would be easy to adapt to a specific device.<BR /><BR />gk</BODY></HTML> Fri, 24 Mar 2006 01:36:41 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127691#M1449 gregk 2006-03-24T01:36:41Z Re: EEPROM in flash https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127692#M1450 <HTML><HEAD></HEAD><BODY><BR /><BLOCKQUOTE><HR />gregk wrote:<BR />The previous document... does not have code for load leveling.</BLOCKQUOTE><BR /><BR /><BR />What do you mean by load leveling?</BODY></HTML> Fri, 24 Mar 2006 01:52:22 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127692#M1450 irob 2006-03-24T01:52:22Z Re: EEPROM in flash https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127693#M1451 <HTML><HEAD></HEAD><BODY>Load leveling is where the processor manages the number of write operations to a specific location. Actually here is an article on EDN about it.<BR /><A href="http://www.elecdesign.com/Articles/Index.cfm?AD=1&amp;ArticleID=12120" target="test_blank">http://www.elecdesign.com/Articles/Index.cfm?AD=1&amp;ArticleID=12120</A><BR /><BR />gk</BODY></HTML> Fri, 24 Mar 2006 06:30:38 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127693#M1451 gregk 2006-03-24T06:30:38Z Re: EEPROM in flash https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127694#M1452 <HTML><HEAD></HEAD><BODY>Ahh, yes ok. Funny, I'd never heard the term before but I'm actually doing that in my own code. It wasn't too bad to do by hand, depending on how many bytes you're storing.</BODY></HTML> Fri, 24 Mar 2006 06:38:09 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127694#M1452 irob 2006-03-24T06:38:09Z Re: EEPROM in flash https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127695#M1453 <HTML><HEAD></HEAD><BODY>I see that many places it is called wear leveling instead of code leveling.<BR /><BR />This Spansion document shows the functionality very well and could help anyone get started.<BR /><A href="http://www.spansion.com/application_notes/22274.pdf" target="test_blank">http://www.spansion.com/application_notes/22274.pdf</A></BODY></HTML> Sat, 25 Mar 2006 03:25:17 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/EEPROM-in-flash/m-p/127695#M1453 gregk 2006-03-25T03:25:17Z