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Rs-232 monitor

Hello, Have you ever wanted to monitor both the TX and RX lines of communication between your PC and your microcontroller from a seperate computer/microcontroller? W...

Re: EVBU, E1, External EEPROM, and an Exhausted Engineer   [3 Articles]

Oh, one more thing that I remembered why my board didn't work is that I was using a RS232 to USB cable. And after doing some searching around, I discovered that the HC11 will no...

HC11 with two (or more) serial ports   [5 Articles]

Hi; I am considering HC11 for a design which might require two or more serial interface, two of these serial would be standard RS232 to PC. I understand that th...

RS232 data switch   [8 Articles]

Dear Forum, A little bit off topic. I have a HC11F1 system running in which I use the serial port to communicate (RX & TX) with two external devices. I want to be...

Re: Help on PCB Layout of 68HC11

In a message dated 10/9/03 11:45:05 AM Eastern Daylight Time, writes: Does anybody have a PCB Layout of a HC11 interface, the basic stuff needed to have an HC11...

RS232, signal levels, MAX2xx chips, etc.

A few odds-and-ends notes to add to the discussion of RS232 and related topics: 1. As previously noted, RS232 signal levels range from -3 to -25V (mark/lo...

my CGN-232 board

Hi to all: I have a CGN 232 board, which has the 68hc11E2FN. The only other thing it has is the sp232acp chip for RS232 connection. I've had this thin...

RS232 switching.

Dear forum, Many thanks for your replies. I had the data switch working with a MAX RS232 converter and switching the TTL levels using an analogue switch as sug...

Re: Connecting to the Internet   [2 Articles]

s...@yahoo.com wrote: > Hi, > I was wondering if you could help me connect a M68HC11 to the Internet. > It\'s really urgent, so please help me. > Thanks Your request is ...

help with pcbug11   [3 Articles]

Im pretty new to all this and so far have only been using Buffalo. Had a 5 min crash course on pcbug11 and b'strap mode of MC68HC11E9 which will be examined on tom...

Re: The connection of MAX232

circuitcyco wrote: > Hello, can anyone here give me some information on the connection of > host PC to MCU? I used MAX232 for voltage level conversion.I got few > versio...

Re: M68HC11 interface to USB

A trivially simple solution (which I would only give you a 'C' for if I was a professor) is just hook up the SCI rx and tx to one of those FTDI rs232 to usb conve...

Serial Transmission   [7 Articles]

Hi, I have got 96 bytes of (temperature) data that I want to send serially to my PC using the SCI. Is there a recommended program that I can use on my PC to ...

Re: Motorola D15 GSM data Module

--- In , "Paul B. Webster" wrote: > On Sat, 2004-08-21 at 05:03, Velja wrote: > >> Don't you have a datasheet? ;-) > > Yes, but there is explana...

a simple serial communcation question   [3 Articles]

Hello, everyone: This is a newbie about 6811 and embedded programming. who you noble soul guys can help me start with a programme example: send a character stri...

Reset

Hi Hugues, On Thu, 19 Sep 2002 19:16:33 -0400, you wrote: >My question is : What could I test to know if my 68hc11 is reset good and ready for receiving the p...

SCI vector   [4 Articles]

Hi, I am using the SCI to transmit from the micro to the PC via RS232. Does the vector at FFD6 & FFD8 (SCI serial system & SPI serial transfer complete) need...

Re: Re: Help needed? SCI on the M68HC11 with a Bluetooth Module..

----- Original Message ----- From: "kylanixzzue" To: > Would a serial interface converter be needed for such a project? I'm > curious...

Re:

In a message dated 10/28/02 4:44:38 PM Eastern Standard Time, writes: > I am starting to teach a class based on the M68HC11E9. > What are the best available ...

How can I connect PC to HC11 through RS232?   [10 Articles]

Hello, all. I am beginner in 68hc11 progamming. I must make some changes for same program. I want to write small debug program for debugging through serial con...

Re: Reset   [2 Articles]

Yes I build my own hardware on a testing board. My circuit work for a while but now I have a problem that I can't find. My reset circuit is done with a DS1233; 1...

Re: HC11 + PSD9xx

----- Original Message ----- From: Jean St-Pierre <> To: <> Sent: Tuesday, October 29, 2002 8:04 PM Subject: Re: [m68HC11] HC11 + PSD9xx > If you have a...

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...

Re: 68hc11 interface with pci bus   [4 Articles]

From: addicted6220 a...@yahoo.com hi everybody, i am rookie in this area (microcontroller). I wanted to build a circuit that microcontroller(68hc11) based connected to motor. ...

Navtex/WEFax   [3 Articles]

I have recently bought an ICOM PCR1000 radio receiver which I have connected to a laptop and am receiving NAVTEX and Weather Fax on it -reasonably successfully. T...

Conversion question MC68HC811E2CFN2 to MC68HC711E9CFN2

Can anybody give me some advise for converting code used on 811e2 to 711e9? These parts are compatible? ( I hope) Thanks in advance, Frank ----- Original ...

sci communication with 68hc11e1   [2 Articles]

I'm having problem with the sci communication with 68hc11e1. I've setup the baud = 0x30, sccr1 = 0x0 and sccr2 = 0x0c . I've connected the serial input to a gps r...

Re: Serial port cable

Dear friends, I suggest reading the EIA RS232 standard. It has a lot of information about cable length vs. bit rate and bit error rates. Of course it depends o...

Re: changing bprot   [3 Articles]

--- In , "angel_prints_198" wrote: > hi! i'm using an hc11a1 chip... i want to write to its internal > eeprom but apparently, writing to...

Question Regarding the download process of BUFFALO in SRAM

Hello... I am the student currently doing the final year project on m68hc11 evaluation board. I faced some difficulties on download the buffalo into SRAM. In order ...

Comm Fault using pcbug11 for MicroCore-11   [4 Articles]

Hello everyone, I own a MicroCore-11 (from Technological Arts).I am currently using PCBug11 to download my .s19 program using RS232 straight cable (DB9, Trx(...

Re: Bootstrap Mode   [4 Articles]

Huey Fen wrote: >>Tie ModA and ModB appropriately. >>Reset the uC. >>Send $FF. >>Send 256 bytes. >>Your program starts. > > > I don't understand how to send $F...

68HC711K4 newbie needs help

Hi all, I'm in tough situation and need your help. There was an electric vehicle company called US Electricar that went out of business years ago and left us owners to struggl...

RE: Buffalo Monitor & RS-232 code

Mike, Thanks for the encouragement to do more "digging". I now know the RS232 interface is made with the SP232A. (I did not realize there are Rxd and Txd pins on the 68HC11. I d...

Re: Re: HC711 pinout

Mike Phillips wrote: > 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...

Re: (unknown)

Here is what I use http://www.couger.com/gcouger/newmicros.html for development. New Micros has some boards that start as low as $49 for a single chip that stea...

Source for cheap bare boards?

I have "several" MC68HC11 chips which need to find a home on a bare board. I've searched the 'net and can't seem to find any still available. Does anyone here know of a source f...