Hi,
Thanks a lot for your replies. I got the program to work for sending commands
from mote to hyperterminal. The reason I was sending modem commands was because
later I want to interface the mote with the modem but was trying to get the
UART to work first.
I am facing a weird problem now though. When I start my hyperterminal connected
to the mote, the program only works when I have this external logic analyzer
(Logic from saleae) plugged in to the Vcc and ground lines of my
communication. I need to put the probes of the analyzer on my lines, start its
simulation, and then all the commands work on my hyperterminal. If I start
without the analyzer, the communication between mote and PC does not start!!
It very funny. Is there some trigger pin I should be considering? Because
UartStream does not have any. Here is my new code :
--------------------------------------------------------------------------------
#include "printf.h"
module GSMmodemC @safe()
{
uses interface Boot;
uses interface Init as UartInit;
uses interface StdControl as UartControl;
uses interface UartStream;
uses interface Leds;
uses interface Timer<TMilli>;
}
implementation
{
enum {
UART_BUF_MAXLEN = 15
};
char* uartsendBuf1 = "AT\n\r";
char* uartsendBuf2 = "AT+CMGF=1\n\r";
char* uartsendBuf3 = "AT+CMGS=";
char* uartsendBuf4 = "+6590140252";
char* newline = "\n\r";
char* msg = "Hello";
uint8_t recevedByte;
uint8_t stage = 0;
uint8_t flag = 0;
uint8_t uartBuf[UART_BUF_MAXLEN];
/** Count of bytes read into #uartBuf during a reading. */
uint8_t uartBufCount;
event void Boot.booted() {
call UartInit.init();
call Timer.startPeriodic(3000);
call UartControl.start();
//call Timer.startPeriodic(2000);
}
event void Timer.fired() {
switch (stage) {
case 0:
call UartControl.start();
call UartStream.send(uartsendBuf1, 4);
break;
case 1:
call UartControl.start();
call UartStream.send(uartsendBuf2, 11); //at+cmgf=1
break;
case 2:
call UartControl.start();
call UartStream.send(uartsendBuf3, 8); // at+cmgs=
break;
case 3:
call UartControl.start();
call UartStream.send(0x22,1); // "
break;
case 4:
call UartControl.start();
call UartStream.send(uartsendBuf4,11); //phone number
break;
case 5:
call UartControl.start();
call UartStream.send(0x22,1); // " ""
break;
case 6:
call UartControl.start();
call UartStream.send(newline,2); //newline
break;
case 7:
call UartControl.start();
call UartStream.send(msg,5); //message
break;
case 8:
call UartControl.start();
call UartStream.send(0x1A, 1); //comtrol z
break;
}
}
async event void UartStream.sendDone( uint8_t* buf, uint16_t len, error_t
error )
{
call Leds.led2Toggle();
stage++;
if (stage > 8)
{
stage = 0;
}
call UartControl.stop();
}
async event void UartStream.receivedByte( uint8_t byte )
{
}
async event void UartStream.receiveDone( uint8_t* buf, uint16_t len, error_t
error )
{
}
}
________________________________________
From: Michael Schippling [[email protected]]
Sent: Tuesday, February 14, 2012 2:29 AM
To: #BHARTI GOEL#
Cc: Eric Decker; [email protected]
Subject: Re: [Tinyos-help] UART sending series of commands to PC
Also I would recommend eliminating the busy-wait delay()
by splitting the whole sending sequence into multiple calls
driven by a timer. It's not much of a delay, but long-running
tasks may end up blocking other tasks which need resources.
MS
Eric Decker wrote:
> It is very strange to be sending modem commands to a pc but okay if you
> must.
>
> You are using UartStream which is split phase. You need to be catching
> the completion event (signal) from UartStream.sendDone. When the
> sendDone comes in you can then start up the next string you want to send.
>
> The way you have UartStream.sendDone right now doesn't make a whole lot
> of sense.
>
>
> If you don't know how this works you need to read the basic TinyOS
> documents and tutorials. Start with Phil's book.
>
> On Mon, Feb 13, 2012 at 12:13 AM, #BHARTI GOEL# <[email protected]
> <mailto:[email protected]>> wrote:
>
> Hi,
>
> I am trying to send a series of commands to the PC hyperterminal
> using UART interface. Now when I send a single command it works
> fine. But when I send a series of commands it stops working. I have
> tried to create delays after each command but still it does not
> work. Can anyone tell me what I can possibly do?
>
> Here is my code :
>
> module GSMmodemC @safe()
> {
> uses interface Boot;
> uses interface Init as UartInit;
> uses interface StdControl as UartControl;
> uses interface UartStream;
> uses interface Leds;
> uses interface Timer<TMilli>;
>
>
> }
> implementation
> {
>
> // COMMANDS TO BE SENT
> char* uartsendBuf1 = "AT\n";
> char* uartsendBuf2 = "AT+CMGF=1\n";
> char* uartsendBuf3 = "AT+CMGS=";
> char* uartsendBuf4 = "+6590140252 <tel:%2B6590140252>";
> char* output = "Hello";
> char* input;
> uint16_t inputlen;
> uint8_t recevedByte;
>
> event void Boot.booted() {
>
> call UartInit.init();
>
> call Timer.startPeriodic(3000);
> call UartControl.start();
>
> }
>
>
> static void delay(uint32_t cycles)
> {
> while (--cycles > 0)
> {
> //nop();
> }
> }
>
> event void Timer.fired() {
>
>
> call UartControl.start();
> call UartStream.send(uartsendBuf1, 3);
> /*call Leds.led1Toggle(); // This
> part does not work
> delay(5000);
> call UartControl.start();
> call UartStream.send(uartsendBuf2, 10);
> call Leds.led1Toggle();
> delay(5000);
> call UartControl.start();
> call UartStream.send(uartsendBuf3, 8);
> call Leds.led1Toggle();
> delay(5000);
> call UartControl.start();
> call UartStream.send(uartsendBuf4, 11);
> call Leds.led1Toggle();
> delay(5000); */
> }
>
>
>
> async event void UartStream.sendDone( uint8_t* buf, uint16_t len,
> error_t error )
> {
>
> call Leds.led0Toggle();
> call UartStream.enableReceiveInterrupt();
>
> }
>
> async event void UartStream.receivedByte( uint8_t byte )
> {
>
> if( (char* )byte == "a")
> {
> call Leds.led1Toggle();
> }
> call Leds.led2Toggle();
> recevedByte = byte;
> call UartControl.stop();
>
> }
>
> async event void UartStream.receiveDone( uint8_t* buf, uint16_t
> len, error_t error )
> {
>
> }
>
> }
>
>
> _______________________________________________
> Tinyos-help mailing list
> [email protected]
> <mailto:[email protected]>
> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
>
>
>
>
> --
> Eric B. Decker
> Senior (over 50 :-) Researcher
>
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Tinyos-help mailing list
> [email protected]
> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
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