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Converting digital to analog   [6 Articles]

Hi,i'm having problems writing my code to convert digital to analog values. I am dealing with assembly programming with the 68HC11. I am trying to read from the output of the t...

C code for MC68C711E9 controller using Freeware GCC Ver.3.3.6   [2 Articles]

Hi All, =20=20=20 I had written a simple C program for M68HC711E9 Controller using Freeware= GCC version 3.3.6. Also i compiled using GCC with vectors.c file and Linke= r fi...

Simple C program for MC68HC711E9 Controller to display a LED

Hi All, =20=20=20 I had written a simple C program for M68HC711E9 Controller using Freeware= GCC version 3.3.6. Also i compiled using GCC with vectors.c file and Linke= r fi...

Fwd: C code for MC68C711E9 controller using Freeware GCC Ver.3.3.6

=20=20 Hi All, =20=20=20 I had written a simple C program for M68HC711E9 Controller using Freeware= GCC version 3.3.6. Also i compiled using GCC with vectors.c file an...

Re: Testbench programs for HC11

--- In m68HC11@m68H..., Ranganathan Sridharan wrote: > Thnaks again for the fast response. I would really appreciate it if > you can guide me on a proper simu...

Re: HC11 IC2 and IC3 Interrupt Problems (Possibly dealing with Imag...

>>> TICK1uS is roughly equal to 128 microSeconds (error in the comment for the code). So, are you saying that only IC1 can get through in that time with the OC4 interrupt ...

Re: Embedded C

Ravi Haksar wrote: A single very long unreadable line, which I re-wrapped for him. > I have tried the C books you guys recomended(a long time ago), but > one teaches...

Re: Need help

Hi Kama, It all depends on how much longer you want your delay to be. If you want it to be a little longer then look at your DEL2 loop. In that loop you execute 2 ins...

Fwd: Re: Random Numbers and Keyboards (My design hopefully somebody can debug for me)

yew alex wrote: To: m68HC11@m68H... From: yew alex Date: Thu, 5 May 2005 20:57:32 -0700 (PDT) Subject: Re: [m68HC11] Rand...

Re: Random Numbers and Keyboards (My design hopefully somebody can debug for me)

Hie Mike and everyone After spending two weeks and more, I have finally done my program, but there are still some error which I do not know, what when wrong. I hope you guy...

How to program Port E ADC to Port B and Random number   [3 Articles]

Thanx Mike for the reply Let me rephares what i meant, Im trying to built a kit, which uses 68hc11. Im trying to use Port E, as my input data (analog to digital) to Port B....

Port E and random number   [2 Articles]

dear alll, Hi im the new member name alex. Im a student, and currently im learning about duet board of 68hc11. I want to know to program a random number between 1...

RE: PSD & expanded bus   [3 Articles]

Tony- For our 68HC11 boards that use an ST PSD for the flash memory (as well as extra RAM and I/O pins), we will probably migrate to a 68HC12 family part with suf...

Re: buffalo in chip   [2 Articles]

sergioheta wrote: >Hello >I have a school project and i have a doubt, hope someone could help >me >with this: > >wich hc11's have buffalo included in the micro, ...

Re: Serial Transmission   [2 Articles]

Several people here have suggested that you have your program output its data in comma-seperated format. I have no argument with suggestions of this nature, an...

Books for the M68HC11

Here are two texts that good: "Microcontroller Technology - The 68HC11"; Peter Saspov, Prentice Hall "Data Acquisition and Process Control with the M68HC11 Microcon...

Re: Re: Code Auto Execution problem   [5 Articles]

Hi all and Israel, My memory fails me for specifics about the HC11 (without going to the manual), but I am pretty sure there is a configuration register associated...

Re: subroutine problem

--- In , "bal_gill21" wrote: > > Thanks for everyones sound advice. I have single stepped the code > and discovered that the program is goin...

Re: Conversion

--- In , "bal_gill21" wrote: > > Does anyone know how I can convert a hex number coming from the > analog to digital convertor ($00-$ff) to...

Re: 68HC11 to interface to 12-bit A/D   [3 Articles]

At 14:25 29.04.2004 -0500, you wrote: >Hi, > >I have a 12-bit serial A/D that I would like to interface with the 68HC11 >micro. With the knowledge that the 68HC...

Re: HC11 vs HCS08?

I used the HC11 for half a dozen project 5 to 10 years ago. Right now, I am finishing two projects that use the HCS08 (9S08GT32) and two that use a regular HC08 (90...

RE: Time to consider upgrading (was: Horray Motorola!!! NOT)

There was quite a long time when there wasn't a really good upgrade path from the 68HC11. People were looking for flash memory, higher execution speeds, and better ...

Re: Analog to Digital Converter Inputs   [3 Articles]

Your understanding is essentially correct. In my own designs, I take measures to prevent any ADC source signal from significantly exceeding Vdd (usually 5.0V on a...

RE: 68HC811 [was 68HC24 PRU]

It's from digikey #mc56f8300dsk-nd The board comes with the 56f8323 (12 bit adc) It has a touch sensor on the board for proximity testing, comes with metrowerks 8...

Re: PT1000 interface   [4 Articles]

At 11:52 20.10.2003 +0000, you wrote: >Anybody ever interfaced with a four wire platinum resistor PT1000? I >found a Smartec device that connects directly to the tr...

Re: Phase angle chopping control Hall effect sensor motor with feedback

Dear forum, As suggested by Sheldon Black a PI or PID closed loop control algorithm will provide an acceptable control result. From your mail below it may be seen ...

Re: Temperature Sensor

You have two options: use a digital sensor, or an analog sensor. The first option is easy in hardware, but hard in software. Normally it's used a DS1820; that's a sen...

Re: double reset?

> It seems that the quartz window not only admits UV to erase the EPROM, but > also lets light shine on some of the setup registers of the chip as well. Also, do...

help   [4 Articles]

hello Can any one help me in forming instruction BRCLR (with little explain) when using it in test bit 7 (ccf) flag bit in the ADCL register as indication that a...

Re: REALLY NEED HELP TO DO DIVISION in assembly   [3 Articles]

By the way, an example of FDIV use is found in this program (in French): http://martial.benoit.free.fr/files/weller.txt Look at the routine ADC_2_DEGREE...

LCD confusion

Hi we are trying to modify this code (given to us by the company) so that we can take a value from the A/D and ouput it to the LCD screen. This seems simple enoug...

Re: Need debugging techniques on ADC to LCD   [5 Articles]

Some suggestions: * Define "the program stops". Does it really stop or seem like it doesn't do what's expected. If it truly stops, check oscillator, etc. If no...

Re: A/D interface   [3 Articles]

Try adding a small capacitance between the input pin and GND. This should simulate the DMM being connected. If you have a good enough manual for the DMM, you may fi...

Re: A/D converter   [2 Articles]

Chirantha-- I think you will get lots of help from people on this group, but first you have to provide more information on exactly what you have tried. Otherwi...

68HC11 ADC12138 interface   [10 Articles]

Hi All Has anyone intrerfaced ADC12138 (or ADC12xxx series ) analog to digital converter with 68HC11 using its serial perifheral interface . Any suggestions will ...

ADRX   [2 Articles]

I use all eight analogue chanels but the first 4 more than the second 4, but when i set ADCTL to $14 that should put the sencond bank at the ARDx registers right?...