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68HC12
Join our technical discussions about Freescale Microcontrollers: M68HC12. (Freescale Semiconductor is a Subsidiary of Motorola).
Search Results for "eeprom"
S12X EEPROM emulated? [8 Articles]
joshcurtz - Jan 18 2006
So I've been using the S12XDP512 for quite some time and someone told
me that the Freescale folks said the EEPROM is not "real" EEPROM but
is actually an "emulated" EEPROM. ... 
EEPROM erased
p_anglum - Nov 18 2003
I have posted questions about the protection scheme of the EEPROM on
the MC9S12DP256B and have been enlightened about it.
Unfortunately we need to leave the EE... Mapping EEPROM to RAM [9 Articles]
vvibin2003 - Jul 7 2003
Hi,
I want to implement a shadow RAM ,for holding my data in the EEPROM.
So my requirement is to have some portion of the RAM mapped to EEPROM
locations so th... Writing to EEPROM: Basics needed [6 Articles]
Roth Markus - Oct 14 2004
Gents
For a certain application it would be nice if I could write to the EEPROM at
run time. I have never been writing to the EEPROM, so my knowledge for this
... Storing variables when running in FLASH EEPROM [2 Articles]
supaben34 - Dec 12 2005
Hello all,
I am trying to run a program in my FLASH EEPROM in my HC12B32
board. My program works fine in RAM but doesn't seem to work when in
FLASH EEPROM. Iam setting my ... how to initialze the EEPROM on MC9S12DP256? [4 Articles]
º´ÁÖ Áø - Jan 23 2003
Hello
I am now using Mc9S12DP256B.
I can not initialize the Internal EEPROM of MC9S12DP256B after serveral EEPROM wrting and erasing test.
Could anyo... bulk erasing eeprom [7 Articles]
Anish - May 23 2003
Hi I am trying to bulk erase the 768 Byte EEPROM in 6812b32. I have
written an assembly code for erasing it. I can see thru the debugger
that when my code execute... How to access internal EEPROM from external flash memory(68HC812A4) [3 Articles]
Mansukh Sheliya - Jul 22 2002
Hi All,
In my application, I am using 68HV812A4 in Normal Expanded mode. I want to store some variables inside the 4KB EEPROM. I don't know- How to assign the pertic... .eeprom segment
Steve Henck - Sep 20 2004
Hello.
I finally got my serial bootloader to work on the mc9s12a256b. OK. So I take
the application that I'm trying to load, move the vectors, recompile and ... Placing Data Objects in EEPROM [3 Articles]
bernd71093 - Nov 22 2005
Hi experts,
I want to access data in the EEPROM space 0xC00. The target is the
S12XDP512. The compiler I use is called Cosmic v4.6.
The EEPROM space definition in t... flash protection continued...
ericshufro - Jun 16 2003
OK - im not so sure that securing the device is the reason for my not
being able to write eeprom when the device is secured.
However,writting eeprom with the devi... Using eeprom constants in CW [4 Articles]
jfrom90 - Apr 2 2004
Hi,
I use codewarrior v3.0 in my project (processor = HCS12 DG128).
My intention is to map the eeprom to addresss 0x800.
The Hiwave-debugger uses the s-record ... Force eeprom variable to eeprom address
acer...@yahoo.com - Jul 11 2008
I have eeprom configured for address 0x4000 to 0x4fff. Variables are initialized as "@eeprom char variable1 = 0;". The compiler, Cosmic Zap debugger, automatically assigns the vari... EEPROM problem!! [3 Articles]
chanojmarian - Feb 11 2004
Hi,
When I am trying to do EEPROM operations with the BDM connected it
works fine.But when I disconnect the BDM and try to read or write
from EEPROM location it... unsecure the eeprom
Simi - Jan 28 2008
friends,
i am working in mc9s12dj256b .i am trying to write eeprom via bdm .for that i am using codewarrior s/w.but it shows an secure problem. ie, eeprom is secure.if anyone kno... standalone EEPROM write on MC9S12A256B / 1k79x ? [7 Articles]
christian_theiss_2003 - Dec 4 2003
Hi all,
I have come across of some strange unexplained behaviour if I try to
write to the 4k EEPROM of my HCS12 derivative:
a) writing to the EEPROM with B... EEPROM mapping in Codewarrior [6 Articles]
Daniel Lundin - Dec 11 2003
Using: Codewarrior 3.0 on HCS12DG128
How do I map the EEPROM with Codewarrior?
The only way I know of is to set the INITEE register manually.
If I do that, ... EEPROM mapping with Codewarrior
Daniel Lundin - Dec 11 2003
Using: Codewarrior 3.0 on HCS12DG128
How do I map the EEPROM with Codewarrior?
The only way I know of is to set the INITEE register manually.
If I do that, ... Programming EEPROM Issue [2 Articles]
vvibin2003 - Jul 19 2003
I am using Metrowerks suite for generating .abs (ELF/DWARF) and SREC
files for my project using MCS9S12DP256. I have defined EEPROM
sections in the prm file and t... initialisation steps of mc9s12dj256b
Simi - May 1 2008
i want to know the initialisation steps of mc9s12dj256b when use it for eeprom writing
i am using the following code,
// Mode Selected is Normal Expanded Wide Mode
MODE = ... Cosmic: @eeprom doesn't work [3 Articles]
Klaus Kaiser - Jul 30 2003
Hello,
I use the IdeaCPU12 V2.10f from Cosmic. To store a character in the EEPROM
of a MC9S12DG256B, I defined a variable like this:
@eeprom char foo;
Acc... Writing to EEPROM [11 Articles]
John Theofanopoulos - May 29 2003
Hi all,
This relates more to the Start12 (HCS12) architecture, but hopefully
someone can shed some light on this.
I have code written for the S12DP256 that ... Re: Dragon12
Edward Karpicz - May 28 2006
The EPROT register is loaded from EEPROM array address =3D=20
top_EEPROM_address-2 during reset. If someone has programmed EEPROM=20
protection byte to nonFF then the only way to... 9S12D64 and P&E Micro's Cyclone Pro [3 Articles]
Wade A Smith - Apr 5 2006
Any one out there know more than the pathetic PEMicro's documentation
says?
We have not been able to find any way to program EEPROM on the 9S12D64
using the Cyclone Pro. In fa... EEPROM protection register [7 Articles]
p_anglum - Nov 13 2003
We're using the MC9S12DP256B and I have a question regarding eeprom
protection. Not counting the area from $_E00 to $_FFF, can we use
the EPOPEN bit in the EPROT ... Stopping CodeWarrior erasing EEPROM [3 Articles]
Andrew Leech - Aug 4 2005
Hi all,
Does anyone know how you stop CodeWarrior (V3.1) from erasing the 4K
EEPROM when it loads the application via the Debugger ?
I have moved my EEPROM to live ... Re: EEPROM erase on power down?
eric_cina - Mar 30 2008
Thx, I'll look into the stability of the our oscillator. Right now
I'm reaching for anything because I can't seem to reproduce the
problem.
We have a few EEPROM routines tha... EEPROM Prog Setup Problem
Roth Markus - Dec 20 2002
Gentlemen
We are dealing with a problem during the setup of the programming procedure
of the EEPROM. We are writing a software on Windows that controls a
progr... EEPROM not readable on reset? (MC68HC912B32) [15 Articles]
drranu - Aug 2 2005
Hey. Is there an initialization sequence necessary to be able to read
EEPROM (byte-erasable) on reset? Here's my situation:
MC68HC912B32 microcontroller.
1. The firs... eeprom erasure [2 Articles]
scott_roset - Dec 8 2003
When I try to compile a program using codewarrior and a P&E board, I
recieve this message, "The debugger is going to mass erase the non
volatile memory (eeprom an... EEPROM Read and Write Access [9 Articles]
nealskura - Mar 31 2004
I understand that in order to program any word or byte into EEPROM,
the sector in which it resides must first be erased. But is it true
that the erase and program... EEPROM section using IAR C-compiler
woody6886ca - Jun 25 2002
Does anyone know how to setup a section that designates on chip EEPROM
on HC912B32? The C-compiler doesn seem to have such a section. I
don't think const will auto... unsecure the eeprom memory [2 Articles]
Simi - Feb 3 2008
hi,
i am working in mc9s12dj256b .i want to unsecure the eeprom memory in this microcontroller.i am trying to write eeprom memory through bdm.if anyone know the code,please send t... Reserved locations in EEprom [2 Articles]
Robert L. Harris - Sep 14 2005
A programmer at a client said he found EEprom locations 0xff0 to 0xfff
(MC9S12A256BCFU) were reserved for system use and if he overwrote them
he had problems. I can find n... DJ64 eeprom programming in low temperature [10 Articles]
jo_wan_soo - Nov 23 2006
We are using HCS12 micro ( MCS12DJ64 CPV 2L86D mask set) in our
automotive CAN application . Recently, we have discovered some
problem with eeprom programming in low temper... EEPROM on D60A [3 Articles]
LUC DIETVORST - Feb 10 2003
Hello,
in the code of the ACPRD are functions used to read and write in the
EEPROM memory (readItemEETS and writeItemEETS).
The registers used in these f... EEPROM Shadow Byte [2 Articles]
Schöllhorn, Hanspeter - May 23 2002
I'm working with the MC912D60A microcontroller. I just realized the access
for EEPROM earasing and programming. So far everything works fine. It's just
that I don't... EEPROM [3 Articles]
Simi - Jan 17 2008
friends,
i am working in mc9s12dj256 microcontroller for writing eeprom. i am new to this microcontroller.i tried to write the eeprom in this directly but its not working so now i... EEPROM Jumper question for M68EVB912B32 [2 Articles]
mgrace_canlas - Oct 6 2003
Hello, me again.
I have a question regarding the M68EVB912B32 evaluation board.
In the EVB user's manual, it stated in Jump-EEPROM Mode, "..(W3-1
and W4-0... MC9S12A64, EEPROM, and ProcessorExpert
Relson, David - Dec 7 2005
Greetings,
I'm got an application that built fine with CW3.1 and PE 2.92. I've
updated to PE 2.95 SP1 and the application no longer builds.
Project::Make reports:
...