Nmit 0020 F68HC11

Started by skychan1213 in M68HC119 years ago

I am using Nmit 0020 F68HC11microcontroller for my final year project. I need the ADC converter to convert my input. I use com1 to connect my...

I am using Nmit 0020 F68HC11microcontroller for my final year project. I need the ADC converter to convert my input. I use com1 to connect my microcontroller to computer. After I test my result, the result is shown in the monitor computer, but the result is not in hexadecimal. The result is shown as P-040F-Y000 X1000 A-06 B-00 C-D0 S-004A When I increase the input voltage which conn...


Converting digital to analog

Started by chryssie0312 in M68HC1110 years ago 18 replies

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...

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 temperature sensor (LM34) and not from the amplifier. the program is written to display the range of temp. from 0 to 210 degrees fahrenheit and not 0 - FFF on the segment display. I am getting the 0-FFF range but no...


MC68HC711D3 Memory Dump Prob

Started by ingenious9 in M68HC1110 years ago 2 replies

With 2 Universal Programmers (SuperPro 3000U & ChipMaster 6000) I can only read a portion of the memory addresses which is from 0000 to 0FFF...

With 2 Universal Programmers (SuperPro 3000U & ChipMaster 6000) I can only read a portion of the memory addresses which is from 0000 to 0FFF with the 2 programmers. But when I am re-assemblying it to the assembler language, I get Jumps to Subroutines (JSR) at some addresses that i cannot read ...example (JSR F061, JSR F948, JSR FB69, etc). my question is, is the memory dump that i can...


EVBU, E1, External EEPROM, and an Exhausted Engineer

Started by ChuckP98 in M68HC1110 years ago 10 replies

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...

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 this mcu than myself. I've posted (long ago) about a problem I've had interfacing a circa 1990 M68HC11EVBU with 32k SRAM and 32k flash EEPROM. I have a E1 PLCC chip in place of the traditional E9 that comes with the...


#bit define

Started by PFC in M68HC1111 years ago 6 replies

A little bit off the topic of spicific HC11's. For the past few years I have been using a compiler which allows a bit within a register to be...

A little bit off the topic of spicific HC11's. For the past few years I have been using a compiler which allows a bit within a register to be defined with a name. Example: #bit mybit = PortA.1 This will give bit 1 of PortA the name mybit which can be used for read and write operations of that bit. I am returning to a compiler used for a 11F1 processor which does not have this #bit function a...


Who reset my 68HC11

Started by yuldu25 in M68HC1111 years ago 8 replies

Hi all, I just made a firmware update on an old project with 68HC11F1. I have seen there is sometimes a reset (1 a week). The COP, the CME...

Hi all, I just made a firmware update on an old project with 68HC11F1. I have seen there is sometimes a reset (1 a week). The COP, the CME are enabled. I use a DS1233 for the reset (supervisor). I don't know if the reset is due to the COP or to the CME or to the supervisor. I could disabled the COP and the CME and to wait having a reset but I can't wait one week to see that ! I pre...


Interfacing HC11 and CM02

Started by nizarkhetani in M68HC1111 years ago 1 reply

Hi Does any one know how to connect HC11 and CM02 i2c RF device?? If yes please let me know. Thanks., Nizar.

Hi Does any one know how to connect HC11 and CM02 i2c RF device?? If yes please let me know. Thanks., Nizar.


LCD Backlight problem

Started by Anushka Parab in M68HC1111 years ago 3 replies

Dear yahoogroup, Kindly Help to solve the backlight issue My project is in very critical stage because backlight of the LCD...

Dear yahoogroup, Kindly Help to solve the backlight issue My project is in very critical stage because backlight of the LCD not working We have the Winstar LCD Module WX320240C0 with EL BackLight. With inverter WIEL2# Practically the Inverter characteristic Inverter (Without any load connected to Fluke 196B scope meter) I/P --> 5V O/P --> 179VAC / 6.56KHz Lcd is working f


Buffalo Monitor & RS-232 code

Started by Nick Reitter in M68HC1111 years ago 2 replies

> Hi, > I have a data radio transmitter connected to the RS-232 connections on my > Adapt11C24DX. (MC68HC11) When I have my program in RAM I...

> Hi, > I have a data radio transmitter connected to the RS-232 connections on my > Adapt11C24DX. (MC68HC11) When I have my program in RAM I can send data to > the RS-232 connection and the transmitter quite well. I am using two > subroutines in the Monitor - OUTCRLF and OUT to accomplish this.. > Now I want to place my code in EEPROM and have the program run from power > up. My problem is


xc68hc711

Started by barnices in M68HC1111 years ago 5 replies

Pardon by the language I use a translator Greetings I want to program "eeprom" of device. I have looked for in "Web" and nonencounter the...

Pardon by the language I use a translator Greetings I want to program "eeprom" of device. I have looked for in "Web" and nonencounter the "data sheet" of device Device is a "XC68HC711" but in a packed "TQFP 100" I program without problems the devices "MC68hC11E1 and E9 I need "the pins description" to connect "pins" to the programmer thanks


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