In some literature about the 68HC11 I see a reference to an 8Mhz
crystal and a 2MHz eClock. Instructions execute in a given number
of clock cycles, but which clock?
Best Wishes,
Jeff Fox
...
Hi All, I hope this is the right forum, I have a 68hc11
microcontroller, and im using BR to debug my buggy code (it has the
Buffalo monitor)
The gist of it is: I load numbers into registers and then jump to a
subroutine, i check the numbers before and after the jump, but they
have changed- any ...
Howdy,
Hope somebody can help.......
I'm working on a project with an old American Automation Inc 68HC11
assembler and linker, dating back to 1988. AS68HC11.EXE and AALINK.EXE
I tracked down the company, now American Arium, but they stopped
supporting the product and 'threw out all th...
Hello all,
I am a second year "electronics technology" student who just finished a
course in
microprocessors. This was using a 68HC11 based trainer. We learned Machine
Language programming, and I taught myself assembly language for the 68HC11.
We also learned interfacing using a PIA.
All thi...
Hi to all:
I'm just getting back into this stuff. I built and had working a
68HC11 board. I have two processors: a 68hc11A1FN and the
68HC11E2FN. I take and replace each when I want to use a particular
one.
I had this thing working like a champ about 1 year ago, put it down,
and can't ...
In '98 I posted the following:
=========================================
Richard Erlacher Sep 8 1998, 3:00 am
Newsgroups: comp.arch.embedded
Date: 1998/09/08
Subject: 68HC11 EVB Schematics, etc.
I have, after 10+ years, found that I've misplaced or lost my
schematics for the ORIGINAL (1...
"CBarn24050" wrote in message
news:20040102134850.26263.00002221@mb-m06.aol.com...
> Hi, I did once try with the 2500 compiler but it was hopeless, once I went
back
> to assembler it all worked out fine.
I haven't used the 2500AD C compiler for the 8051, but if it's anything like
thei...
Hello,
This is probably becoming a legacy topic. I hope there's someone out there
who can assist.
According to the 68HC11 reference manual, Port A PA3-6 can be general
purpose outputs, or driven by timer output compare functions. If one
disables the latter then it should simply be a matter ...
Hello,
for a school project i need to program the Motorola 68HC11 to use the
HD44780 LCD controller, and this must be done in C lang plus maybe a
bit of assembly.
The 68HC11 uC is embedded in a HandyBoard (www.handyboard.com).
The Handyboard gives the following problem:
The Handyboard ha...
Are there any situations where programming an embedded processor
"requires" at least some assembly code?
How about for AVR, MSP430, 68HC11, 8051(Atmel)?
Can these 4 microcontrollers be programmed fully in C without touching
assembly (even interrupts and etc.)?
...
Hi all,
I'm writing some routine for a Motorola 68HC11, but
it seems that debugging the code in assembler is a little bit difficult
!!
Please, what software do U suggest me to simplify this job ??
Assembling the code with asmhc11.exe give me back many errors,
but not what this error are and ...
Greetings,
I'm not very familiar with the Motorola 68HC11 but am teaching a course
using it. What does it mean when BUFFALO gives an error message such as
"ROM 2000" or "ROM 1384"? I don't recall the circumstances under which the
error was displayed (I'm working from old notes about what ...
Hi,
I am having problems with the port B. Its an output port and I am
writing the whole port. My code is as follows
ORG 2000
LDAA $# FF
STAA $1004
Now, if I write 00 hex or FF to theport. The port is always floating.
I tried pull ups and pull downs but no difference. Please advice.
...
Hi all,
As the subject states, I need a copy of Archimedes C compiler (and
related linker, libs, etc.) for the 68HC11, version v.3.20D/DXT
(version 4 considered as well). It was released circa 1993. If you
have it and would like to sell, please contact me ASAP
(skyspyco@hotmail.com) and mak...
Hai
Is there anybody give me guidance about RTL implementation of the complete
68HC11. I am involved in design of one such at transistor level and none of
the book or online reference talk about pure hardware implementation. All I
could see is how to program a HC11 but not how to build one. Any
i...
I'm helping someone look for a good microprocessor assembly language
programmer (68HC11 preferred, or willing to learn it) and is in Athens,
Georgia, or willing to commute there at least twice a week. The
candidate should preferably have a master's degree.
If interested or if you want to reco...
MikeWhy wrote:
> Dude! The OP said "decades". I'm thinking 1982 compared to today; today
> compared to 2035.
Z80 is still available, and so is 68HC11. Those parts have good chance
to be in production until 2035, too :)
Vladimir Vassilevsky
DSP and Mixed Signal Design Consulta...
Without heaving read all of this thread, you should look at the
ASYNC_LOW_LATENCY setting in the termio ioctls. Linux will delay
interrupting a program doing serial I/O until a certain time
has elapsed or enough characters have arrived to make the context
switch efficient.
I found this when a...
I'd take some of your money and buy some development kits. You can get
a PICDemo board with theri hockey puck debugger for pretty cheap
(www.microchip.com). If you want, spend some extra bucks on a C
compiler for it. Or you could go the similar AVR route (www.atmel.com).
There's probably tons of...
I'll toss my hat in for the AVR micros, mostly because they seem to have
the best C compiler out there. It seems to be very efficient so I
don't feel so bad when not writing in asm. They also have some very
powerful hobbiest parts that fit into DIP packages. I did some work
with Motorola 68H...
On Mar 9, 4:28 pm, Steve Calfee wrote:
> When looking at a really weird cpu arch and wanting to
> simulate/benchmark it the question quickly becomes what about tools. I
> think for really different arches that is a significant problem.
>
> GCC in its bones believes in 8 bit bytes, words...
wrote:
> I'm looking for a modern day CPU (preferably with flash and RAM) that is
> binary compatible with the Motorola 6800. Does such a beast exist?
All the Motorola 68HC11 variations are upward compatible with the
6800. (except maybe in minor details like the location of interrupt
ve...
In article ,
"tum_" wrote:
> What's the least powerful cpu you have had implemented RSA
> for? Was it some PIC model or was there something even more
> inferiour?
6502, back in 1979. No hardware multiplier. Did multiplication
using shift-and-add, with the core loop unrolled and co...
In article ,
W Trembyle wrote:
> I'm working with a Cypress PSoC micro with an M8C core (CY8C29666).
> I have 32K ROM and 1K RAM. I need to implement 1024 bit RSA encryption
> in as small a footprint as possible.
Is the application encryption, or signature verification (like
in ins...
Hello,
I need an eval. board preferably with 68HC11/12 that has full fledged RS232,
most importantly RTS and parity manipulations -- changing mark parity to
space parity from one byte to next. Do you know any such eval. board?
Thanks!
QBA
...
In message , Michael A.
Terrell writes
> I know exactly what it is. Pure unobtanium. The 'SC' prefix is a
> proprietary marking for a big OEM customer, so the only way to get
> information is to squeeze it out of that OEM.
>
>
But knowing what it's on, what package etc. might be ...
Hi to all:
I'm looking for a microprocessor trainer that I can program in
assembly language, maybe C, and having a usb connection.
It would be nice to have a hex keypad on the board as well. I'm
familiar with the 68hc11 and the Z80, 8085, etc...Maybe want to make a
step up.
I want to wo...
Tim Wescott wrote:
> I've got a client in a bind. He's designed in these parts:
> http://www.interinar.com/stepper%20driver%20BSD-02.htm, but the vendor is
> out of stock.
>
> Does anyone know of replacements I could recommend? The essential specs
> are that it should take step, direc...
CBFalconer wrote:
> However I would hardly call it branch prediction -
> it is simply a matter of knowing all the possible next instruction
> locations for any instruction.
Understand. That can work also, though to predict the location of a
branch in the 68HC11 you sometimes need to consid...
David Brown wrote:
> You are thinking of a "gdb stub", not gdbproxy.
Correct, sorry for the mistake. I was going to implement a gdbproxy
in my DL11 68HC11 debugger. I used a talker that fitted in the 256
bytes of RAM (or used 11 bytes once it was loaded into (E)EPROM),
so a gdb stub wouldn't...
The books I used were "Microcontroller Technology The 68HC11" by Peter
Spasov.
And the HC11 M68HC11 Reference Manual.
The "Microcontroller Technology" book uses assembly language.
Sorry, I am not aware of any tutorials on the internet.
"ritu" wrote in message
news:ed708fc9.0402010300....
Dan Henry writes:
> The OP states:
> > I am using Hi-tech C on an arch for which Hi-Tech for whatever
> > reason didn't provide the libc sources;
>
> Did lib source come with those older architectures? Just curious.
A quick survey:
68HC11: yes
H8/300: yes
ARClite, nee V8: yes
...
On 2004-01-26, Ian Bell wrote:
> Dave Hansen wrote:
>
> > On Fri, 23 Jan 2004 23:32:56 +0000, Ian Bell
> > wrote:
> >
> > [...]
> > >
> > > Are you telling me gcc can compile for the AVR?
> >
> > You didn't know?
> >
> > http://www.avrfreaks.net/Tools/showtools.php?To...
"Rolf Blom" wrote in message
news:f6b1ru$mq6$1@news.al.sw.ericsson.se...
> I remember one time a (non-PIC) cpu was acting funny, due to an
> undocumented opcode that got into a corrupted binary.
> The opcode caused the cpu to start excercising its address bus in a
> sequential pattern...
Johnny wrote:
> I have written software for Linux/UNIX using non-blocking reads/writes,
> but the Windows side is very new to me. I would hope the FTDI driver is
> non-blocking...
For Linux, you should also look for the ASYNC_LOW_LATENCY option,
which also affects writes to normal seria...