Re: [Gumstix-users] Questions about robostix/gumstix serial connection

[Marq R. <mar...@ya...>]

Dave

I cant thank you enough for your help.

Marq


Dave Hylands wrote:
> 
> Hi Marq,
> 
>> I am planning on using the i2c bus for a few other sensors we plan on
>> implementing down the line. I am not currently using the FFUART pins for
>> anything now so that is why I was considering using it instead of the
>> STUART. Are there problems using the FFUART for serial input? I
>> communicate
>> with the gumstix via my netMMC stix, will using the FFUART for serial
>> cause
>> problems with the console?  Also what is a logic-level serial interface?
>> The
>> IMU says that is comes setup to communicate via RS-232.
> 
> You should read up on serial voltages & adapters:
> <http://docswiki.gumstix.com/Serial_voltages>
> <http://docswiki.gumstix.com/Serial_adapters>
> 
>> If I do use the FFUART for serial do I need to do anything special to
>> make
>> it work?
> 
> All of the console output goes to FFUART. Also, the u-boot output goes
> there as well.
> 
> This page covers the details:
> <http://docswiki.gumstix.com/Tips_and_tricks#Free_ttyS0>
> 
> If you make u-boot silent, and something happens that you can't get in
> through the network, then you'll have effectively bricked your
> gumstix.
> 
>> Are there some good example you recommend for reading up on how to read
>> from
>> stdin? I was looking over serial log program and couldn't tell how it was
>> doing this.
> 
> sertest.c reads from stdin.
> http://docswiki.gumstix.com/Sample_code/C/Serial
> 
> -- 
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
> 
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