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Which Is Better!!!   [2 Articles]

i am doing my final year project using expanded mode configuration.. i am using an additional 64KB EEPROM(28C64) with MC68HC11 E1.. i wanna know which is the bet...

MC68HC11A1 to MC68HC711E9 conversion

Hi all, Is it possible to use the same code from MC68HC11A1-CFN2 on the MC68HC711E9CFN2? Our programsize is only 500bytes and is located in the EEPROM. We star...

Re: HC11 floating point library and non integer exponentials

Hi all, Is it possible to use the same code from MC68HC11A1-CFN2 on the MC68HC711E9CFN2? Our programsize is only 500bytes and is located in the EEPROM. We star...

programming mc68hc11e1 EEPROM with jbug   [2 Articles]

hello, i'm currently trying to program the EEPROM of a mc68hc11e1 MCU. the JBug11 software is able to read the memory and also the registers but i am just not able to load...

Serail EEPROM programming.   [3 Articles]

Hi List, Yet an other memory question: I have a Kevin Ross botboard+ with a 811E2 and a MicroChip 25LC640 serial EEPROM that came with the kit . Using a small a...

External EEPROM Got Erased   [14 Articles]

I am using PCBUG to program my external 8x8K EEPROM, and the PCBUG does a great job programming my external EEPROM. But sometime when I first connected the +5V t...

External RAM and EEPROM   [3 Articles]

Hello everyone, I have a question regarding the M68HC11EBVU. Its the old board from the 90's with the mc68hc11e1 chip in place of the e9. I've installed a 32k SRAM chip and a...

EEPROM protection   [3 Articles]

Hello all, This is for all you software guru. Following is the problem: I suspect that I'm having some data corruption problem to my EEPROM (EE) and I...

memory corruption   [3 Articles]

Hi , We have been using 68hc11 for many of our products. Recently we have identified a problem where there is a memeory corruption.The code is stored in EEPROM...

EVBU, E1, External EEPROM, and an Exhausted Engineer   [11 Articles]

Hi everyone, I'm glad to see so many people still have interest in this ol' chip. I a couple of questions for you knowledgeable folks out there who have more experience with ...

MC68HC11F1 internal EEPROM when for joyride in expanded mode.   [3 Articles]

I have been having problem with MC68HC11F1 in expanded mode. And I have come to conclusive diagnostic. This is my diagnosis. 1. I start the MC68HC11F1 in b...

EEPROM write/erase   [3 Articles]

Hi all, Can anyone tell me the actual delay times that are involved with writing to the 68hc711e9 EEPROM? Do you have to erase the byte first then write it, ...

Memory map...

Hi, I am using the Microcontroller MC9S12A64. Could anybody pl help me by giving the breakup(Start & End Addresses) of the Internal Memory (i.e., The registers, EEPROM, RAM a...

Microcore11 EEPROM programming problem   [8 Articles]

Hi, I am working with a Microcore11 board with an HC11 E0 chip. I have been unsuccessfully attempting to reprogram the EEPROM on the board, using both MicroLoad...

RAM/EEPROM on the 68HC11F1   [4 Articles]

Hi group! Is it possible to connect SRAM/EEPROM directly, i.e. WITHOUT ANY glue logic, to the data/address bus of the 68HC11F1? For example using Program Chi...

loading buffalo   [4 Articles]

I'd like to load buffalo into RAM on a 711e9 device instead of eeprom, in order to debug the eeprom content. Is that possible? -- Torgeir Veimo <> ...

EEPROM corruption   [4 Articles]

Hello all, ??????????? Do I need to disable Interrupt while Erasing and Writing to the EEPROM ???????? Read on if you want to know why this question is bein...

Open drain serial EEPROM program problem.   [2 Articles]

Hi all. Can somebody help me? Recently, I use Motorola MCU write and read an serial EEPROM (with open-drain input according to the datasheet). If I used port D...

EXTERNAL FLASH EEPROM PROGRAMMING   [3 Articles]

Hello everyone. I've got a problem that I've been trying to figure out for some time now, and I have yet to find good information regarding the topic. I'm trying to program an...

Clearing BPROT   [3 Articles]

Hello - My project uses the 68HC11F1 in expanded mode. I have tried to clear the BPROT register with no success. I modified the startup code with the lines ldaa #00; staa ...

Re: static config reg can not be changed

--- In , "jackson_cp" wrote: > We are very thankful to you for your kind response, > > I have experimented with the idea what you have given. B...

changing bprot   [9 Articles]

hi! i'm using an hc11a1 chip... i want to write to its internal eeprom but apparently, writing to eeprom isn't allowed. i checked the config register & it appears...

Baud rate for programming EEPROM   [3 Articles]

I would like to know about the serial speed and talker upload speed in baud rate for programming the EEPROM. How does the oscillator frequency effect them. Does a...

Config Register   [6 Articles]

Hi all, Is EEPROM normally enabled or disabled in the CONFIG register?. It is bit zero (EEON), the manual just says its default erased state is EEPROM enable...

JBUG setup.

I know this isn't the jbug group but would anyone have knowledge of the following: I loaded the talkeree.s19 (supplied by A1 Williams) in the usual way in...

68HC11 problems :(   [2 Articles]

Hi, I am trying to download code to the internal EEPROM on an MC68HC11 E series. i was wondering if anybody has any experience with how to do that.. which jum...

Re: Conversion question MC68HC811E2CFN2 to MC68HC711E9CFN2   [4 Articles]

In a message dated 11/14/02 9:43:27 AM Eastern Standard Time, writes: > Can anybody give me some advise for converting code used on 811e2 to 711e9? > These p...

hc11a1p1 question

id like to know if theres someone with knowledge about the hc11a1p1 and it's config register. from what ui understand about this controllers config register is th...

hc11 config register problem   [2 Articles]

i have 2 hc11 that have different values in the config rgister. i was wanting ti know how can i change the value in this register using buffalo monitor with say l...

Problems in down loading interrupt vector table   [2 Articles]

Thanks all of you for the guidance given for us for problems regarding MC68HCF11 interface. But still we are facing some problems regarding downloading the .s19 ...

Wytec Emulator

Hi all: Anyone had any experience with the Wytec WICE11 emulator? I've been using mine for several years now and really like it, but recently I stumbled acro...

[ot]Xicor X25160 SPI EEPROM   [4 Articles]

G'day all I'm trying to find a pin and code compatible replacement for the above (or better still something a little bigger). The package is 8 pin PDIP. I have...

Re: buffalo in chip   [4 Articles]

Herrera Sergio wrote: >Thanks a lot Mike, the information you gave me is just what i needed > > You're very welcome. I saw that really, I couldn't answer your que...

68HC11E9 - Usable Memory for Programming?   [4 Articles]

Hello all, I am using an HC11EVBU2 board with an HC11E9 chip on it, and it also appears to have some external memory on the board as well. I'm trying to find room to write cod...

Re: HC711 pinout   [2 Articles]

If I got this right, the constants and variables are loaded into the eeprom in the k4 version of the hc711. The main vehicle program is loaded into the prom. The eeprom conte...

External Memory Troubles   [5 Articles]

Hi everyone, I'm new to this forum. I'm currently working on a project where I'm using my old MC68HC11EVBU that I got in school way back in 1998. I've been having trouble gett...

Security bit in HC711E9/ New HC11 member?   [2 Articles]

G'day all Before I get to my question, I was looking at the Moto website for update information about the security bit and I came across a chip that I didn't k...

Re: Question Regarding the download process of

I use and recommend 'hcload'. It is a Win app that does everything for getting the hc11 started, such the config settings, programming eeprom, and loading memory. A web se...

Problemin downloading vector table

Thanks all of you for the guidance given for us for problems regarding MC68HCF11 interface. We could interface a chip successfully with an external RAM and we hav...