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PT1000 interface

Started by coolpix404 in M68HC1121 years ago 8 replies

Anybody ever interfaced with a four wire platinum resistor PT1000? I found a Smartec device that connects directly to the...

Anybody ever interfaced with a four wire platinum resistor PT1000? I found a Smartec device that connects directly to the transducer and and produces a micro-combatible period-modulated output signal without any other electronics. Are there any potential problems with creating in


Re: HC11 IRQ AND XIRQ PIN 40 AND 41

Started by Tony Papadimitriou in M68HC1121 years ago 2 replies

Please don't shout, we're all deaf here, anyway. :) Your understanding of IRQ is good. XIRQ is similar to IRQ with some...

Please don't shout, we're all deaf here, anyway. :) Your understanding of IRQ is good. XIRQ is similar to IRQ with some exceptions: 1. Once enabled, XIRQ cannot be disabled (actually it can be, but it shouldn't in theory as it said to be a non-maskable interrupt)


Temperature Sensor

Started by e_w_a_n in M68HC1121 years ago 8 replies

Hi all. I am newbie in 6811. I have a final project to do. And I want to know how to integrate the temperature sensor to the...

Hi all. I am newbie in 6811. I have a final project to do. And I want to know how to integrate the temperature sensor to the M68HC11? But firstly, I need to know the best sensor to use.. tq


Illegal opcode

Started by Alowonle, Musibau in M68HC1121 years ago 2 replies

Hi Everyone, My code locks-up in an infinite loop by getting into the Illegal Opcode interrupt routine. Now the book says the...

Hi Everyone, My code locks-up in an infinite loop by getting into the Illegal Opcode interrupt routine. Now the book says the way to get out of this is by popping/pulling the stack of the return address of the illegal opcode. I know I can do this by using the In-line assembly


Re: replacement for the 68HC811E2??

Started by Robert Smith in M68HC1121 years ago

Dream on Kerry, dream on .... You should have saved this for 4/1/04 . Bob --- Avoid computer viruses, Practice safe...

Dream on Kerry, dream on .... You should have saved this for 4/1/04 . Bob --- Avoid computer viruses, Practice safe hex --- -- Specializing in small, cost effective embedded control systems --


Re: reading the 68HC711 code

Started by Melear Charles-rdph40 in M68HC1121 years ago

Daniel, The direct answer to your question is "yes". However, you probably want a little more information. If your 68hc711...

Daniel, The direct answer to your question is "yes". However, you probably want a little more information. If your 68hc711 is in a board, you may not be able to invoke the various non-user modes. However, if you have the part in your hot little hand and can take it to so


traffic light control system

Started by tanveer_43 in M68HC1121 years ago 3 replies

hello, i want to control traffic light signals through M68hc11 .the approach is ,when a car come, the signal will turn on...

hello, i want to control traffic light signals through M68hc11 .the approach is ,when a car come, the signal will turn on otherwise turn off.i want to know the code of this program .if any one know let me aware too . thax tanveer haider


M68HC11EVM & Windows XP

Started by Calamity Jane in M68HC1121 years ago 2 replies

I have a Motorola M68HC11EVM evaluation module that I purchased from Motorola in the early 1990s (- quit laughing! It's a good...

I have a Motorola M68HC11EVM evaluation module that I purchased from Motorola in the early 1990s (- quit laughing! It's a good system!). The DOS-based software that came with the EVM has the following sign-on screen: "User interface to the Motorola M68HC11EVM Requir


EVM

Started by Calamity Jane in M68HC1121 years ago 1 reply

"When you say that you have an EVM, do you mean the big board that is a little bit bigger than a standard size sheet of paper?" ...

"When you say that you have an EVM, do you mean the big board that is a little bit bigger than a standard size sheet of paper?" Yup, that's the one! Heck of a nice system, especially with the P&E GUI. It was nice to work in multiple Windows that included the EVM,


REALLY NEED HELP TO DO DIVISION in assembly

Started by Alism 2000 in M68HC1121 years ago 8 replies

Hi, I have a 16-bit variable that is needed to be multiplied by 5 (decimal) and then divided by 1000000 (decimal, too)...so it is...

Hi, I have a 16-bit variable that is needed to be multiplied by 5 (decimal) and then divided by 1000000 (decimal, too)...so it is like multiplying by 0.000005 (decimal),,,,,,ANY IDEA HOW TO DO THAT???? I really need help...ASAP thanx all AA


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