Re: [Gumstix-users] serious OVERO + SUMMIT IO, opkg and TPS65950 questions

[Ben B. <ben...@gm...>]

I would suggest checking out the old gumstix wiki and seeing if you
figure things out. The documentation was much better, lacking the
pretty interface. http://docwiki.gumstix.org/index.php/Index.html some
of the older docs do not apply to the new boards but there are much
examples on how to get things going .

Anyone pipe in correct me if I am wrong.
  	 V_BATT
	40
	39 	ADCIN4
	
  	ADCIN3 	38 	37 	AGND
  	ADCIN5 	36 	35 	ADCIN6 	
  	ADCIN2 	34 	33 	ADCIN7 	
        **********ADC = analog to digital *****
  	PWM1 	32 	31 	PWM0 	
  	GPIO144_PWM9 	30 	29 	GPIO147_PWM8 	
  	GPIO145_PWM10 	28 	27 	GPIO146_PWM11 	
      ************ Pulse Width Modulation *************
  	VCC_1.8 	26 	25 	GND 	
        *************Volts 1.8 (THINK??)  GND ground
  	GPIO185_SDA3 	24 	23 	GPIO184_SCL3
        *******PINS IC2 I forgot ????***
  	GPIO166_IR_TXD3 	22 	21 	GPIO165_IR_RXD3 	
  	GPIO163_IR_CTS3 	20 	19 	GPIO170_HDQ_1WIRE 	
  	GPIO127_TS_IRQ 	18 	17 	GPIO128_GPS_PPS 	
       ***** GP IO General purpose Input Output
  	VCC_1.8 	16 	15 	GND 	
  	POWERON 	14 	13 	GPIO0_WAKEUP 	
  	VBACKUP 	12 	11 	SYS_EN 	

  	GPIO148_TXD1 	10 	9 	GPIO151_RXD1 	

  	GPIO175_SPI1_CS1 	8 	7 	GPIO173_SPI1_MISO 	
  	GPIO174_SPI1_CS0 	6 	5 	GPIO172_SPI1_MOSI
  	GPIO114_SPI1_NIRQ 	4 	3 	GPIO171_SPI1_CLK 	
	 *******SPI LINES****************
  	VCC_3.3 	2 	1 	GND

> 2) is there any guide to setting up/using any of the OMAP I/O besides the
> USB? anything on UART, 2-wire, 1-wire, GPIO or serial under OE?
> (http://www.gumstix.net/Hardware/view/Expansion-boards/Overo-Expansion-boards/112.html
> is supposed to have info but doesn't)
 Should be a way. don't quote me though. I have an older connex board .


One thing you must realize is that everything on a linux system
becomes a file , just have a look in /dev/
Once someone has written a driver for a device is usually shows up on
/dev/(SOMEPATH).
You can look at some of the older i2c-io code that reads and writes to
the i2c bus, very strait forward.
Quick and dirty way to get to things
f = open("/dev/blah","r") ;
ioctrl(something);

I ended up doing this for a honeywell compass . I had to have two file
hands one for writing and one for reading.



Thanks,
Ben



On Mon, Feb 23, 2009 at 11:32 PM, capttwinky <cap...@gm...> wrote:
>
> I decided to push ahead with developing a project on the OVERO dispute the
> almost complete lack of documentation (it's an OE project and that is
> documented, right?) and I am extremely afraid that I will be loosing my job
> because of that mistake.
>
> 1) is there an actual description of the signals available on the SUMMIT's
> 40 pin header? I know their names, but I need to know what the names mean
> (http://www.gumstix.net/Hardware/view/Hardware/Summit-board-40-pin-header/112.html)
>
> 2) is there any guide to setting up/using any of the OMAP I/O besides the
> USB? anything on UART, 2-wire, 1-wire, GPIO or serial under OE?
> (http://www.gumstix.net/Hardware/view/Expansion-boards/Overo-Expansion-boards/112.html
> is supposed to have info but doesn't)
>
> 3) all of the documentation still refers to ipkg which is NOT opkg
>
> 4) when I run opkg update ; opkg upgrade on a fresh-out-of-the-box Overo, it
> looses its ability to boot out of nvram - and the same (advised in almost
> every good walkthrough) procedure will kill the boot-ability of every image
> - is there a better repo than the default one?
>
> 5) the TPS65950 has a bluetooth audio module in it already - how do I get to
> it? is it a matter of finding / writing the right drivers?
>
> What I really, really need to save my job at this point is an answer to #2
> above - without this reference, I'm done for!
>
> thanks in advance for your time / concern
>
> Joel
>
> --
> View this message in context: http://www.nabble.com/serious-OVERO-%2B-SUMMIT-IO%2C-opkg-and-TPS65950-questions-tp22175411p22175411.html
> Sent from the Gumstix mailing list archive at Nabble.com.
>
>
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