Robust and easy to implement serial bus (automotive application)

Posted by JcMaco on Stack Overflow See other posts from Stack Overflow or by JcMaco
Published on 2008-09-27T22:10:30Z Indexed on 2010/04/14 1:33 UTC
Read the original article Hit count: 310

Filed under:

microcontroller

|

serial

|

can

|

can-bus

|

rs232

What serial communication bus would you use in a automotive embedded system if your main selection criteria were:
* Electrically robust
* Slow speed (32 kb/s)
* Easy to program
* Easy to interface with microcontrollers

It won't be transferring much data, but it will need to be transferred periodically at high speed (100 - 500 Hz). I find that RS-232 is just not reliable enough if you have noise in your ground line. CAN-bus seems interesting, but I have no experience with it.

We are currently interested in a combination of AVR AT90CAN128 microcontrollers.

© Stack Overflow or respective owner

Related posts about microcontroller

Microcontroller to Microcontroller SPI communication

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello again, I was doing some reading and have even gotten a "master" SPI working on my microcontroller. Here is my question, basically if the master wants to initialize a write to the slave we write to the SSPBUF, how do we control what the slave responds with? The datasheet doesn't seem really clear… >>> More
Looking for ideas for a simple pattern matching algorithm to run on a microcontroller

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm working on a project to recognize simple audio patterns. I have two data sets, each made up of between 4 and 32 note/duration pairs. One set is predefined, the other is from an incoming data stream. The length of the two strongly correlated data sets is often different, but roughly the same "shape"… >>> More
linear interpolation on 8bit microcontroller

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to do a linear interpolation over time between two values on an 8 bit PIC microcontroller (Specifically 16F627A but that shouldn't matter) using PIC assembly language. Although I'm looking for an algorithm here as much as actual code. I need to take an 8 bit starting value, an 8 bit ending… >>> More
Figuring out the performance limitation of an ADC on a PIC microcontroller

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm spec-ing the suitability of a microcontroller like PIC for an analog-to-digital application. This would be preferable to using external A/D chips. To do that, I've had to run through some computations, pulling the relevant parameters from the datasheets. I'm not sure I've got it right -- would… >>> More
Figuring out the Nyquist performance limitation of an ADC on an example PIC microcontroller

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm spec-ing the suitability of a dsPIC microcontroller for an analog-to-digital application. This would be preferable to using dedicated A/D chips and a separate dedicated DSP chip. To do that, I've had to run through some computations, pulling the relevant parameters from the datasheets. I'm… >>> More

Related posts about serial

Error in installing ZTE AC2738 on ubuntu 3.0.0-12-generic

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am getting this error ,struct usb_serial_driver has no member named shutdown. I am installing on 64bit ubuntu 3.0.0-12-generic ... Beginning Verify CD ... ... Verify CD Succeed! ... Beginning Copy Install Package Files ... ... will take a long time, waiting 5 seconds, please ... Copy Install… >>> More
Windows with putty via USB serial cable to Linux serial port - output ok, input isn't

as seen on Super User - Search for 'Super User'
I am trying to get two way serial communications going between a Windows XP system and a Linux system (RHEL 5). I have /sbin/agetty -L 9600 ttyS0 in /etc/inittab. I am using a generic USB to serial adaptor on Windows (Unitek) and a null modem cable. I have putty configured for 9600 baud, 8… >>> More
java serial I/O: handling USB serial connection/disconnection in a robust manner

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm using rxtx for serial I/O handling in Java with an FTDI2232H that provides a USB comm port. It works great, with one exception: if I unplug the USB cable, so that the COM port disappears at runtime, it spews exceptions left and right: java.io.IOException: No error in nativeavailable at gnu.io… >>> More
Reading a Serial Port - Ignore portion of data written to serial port for certain time

as seen on Stack Overflow - Search for 'Stack Overflow'
I would like to read data coming and Arduino on a serial port on intervals. So essentially something like Take a reading Wait Take a reading Wait Take ... etc. The problem I am facing is that the port will buffer its information so as soon as I call a wait function the data on the serial port… >>> More
C# serial port driver wrapper class code and concept quality

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi folks, Would like to know from all you guys what you think about my Serial Wrapper class. Had be a while I've beem working with serial port but never shared the code what somekind make closed to my very own vision. Would like to know if it's a good/bad approach, if the interface is enough and… >>> More