[Tinyos-help] Writing to P2.3 and P2.6

[Urs Hunkeler]

Hi,

Couldn't you use the Gpio interfaces in something like the example below?

In the configuration:

   components new Msp430GpioC();
   components HplMsp430GeneralIOC;
   Msp430GpioC.HplGeneralIO -> HplMsp430GeneralIOC.Port62;
   MyAppC.Pin -> Msp430GpioC;

Then, in the module use the GeneralIO interface:

   interface GeneralIO as Pin;

Then you should be able to to set the pin to high/low with the following 
calls:

   call Pin.set();
   call Pin.clr();

Cheers,
Urs

Michael Schippling wrote:
> Lets keep this on the help list in case someone actually knows something...
> 
> I suspect that you can't do that because the memory spaces are not
> the same. Look at the controller manual for the instructions that
> read and write port registers, and then see if you can find equivalent
> C'ish macros. I'm too lazy to re-find where outp() is defined for
> the atmega but I think its in the compiler header files rather than
> the TOS files. For the MSP I expect there is something similar.
> Spot checking hardware interface .nc files may provide clues.
> 
> MS
> 
> 
> Donde Vas wrote:
>> Thank you Michael for your input.   I was wondering if you knew if I can 
>> use something
>> like the following in TinyOs1.  I have tried but it does not work; it 
>> compiles OK tough. I'm playing trying to set all the Leds at once:
>>
>>           atomic (*(volatile uint8_t *)0x32) |= 0x70; // Sets for output
>>         atomic (*(volatile uint8_t *)0x33) &= 0x8F; // Sets for IO
>>         atomic (*(volatile uint8_t *)0x31) |= 0x70;  // Sets pins 4,5,6 
>> of port 5
>>
>> Regards,
>>
>> LV
>>
>>
>> --- On *Fri, 12/12/08, Michael Schippling /<schip at santafe.edu>/* wrote:
>>
>>     From: Michael Schippling <schip at santafe.edu>
>>     Subject: Re: [Tinyos-help] Writing to P2.3 and P2.6
>>     To: lamevas at yahoo.com
>>     Cc: tinyos-help at millennium.berkeley.edu
>>     Date: Friday, December 12, 2008, 4:53 PM
>>
>>     You should be able to write a full byte to the port 2 register
>>     but you'll have to do a little code archeology to figure out
>>     what function to use. E.g., in T1 for micas I use:
>>         outp( value, portaddr );
>>
>>     Also you need to make sure you don't twiddle anything attached
>>     to the other bits on the port.
>>
>>     MS
>>
>>     Donde Vas wrote:
>>     > Hope someone can shed a light on this: I'm writing a TinyOS telosb
>>     application which needs to use P2.3 (GIO2) and P2.6 (GIO3). Is there a command
>>     in TinyOS that can write to these addresses at once? (there must be no delay
>>     between them).  Using MSP430GeneralIOC.Port23 and MSP430GeneralIOC.Port26 gives
>>     a delay of some microseconds, which is not acceptable.
>>     > 
>>     > Any suggestions? An example would be great.
>>     >
>>      
>>     > Thanks!
>>     > 
>>     > Lane