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hi all,
this is my script:

#! /bin/sh

minutes=$( { i2cget -f -y 0 0x51 3; } 2>&1 )
minutes=${minutes:2}

hour=$( { i2cget -f -y 0 0x51 4; } 2>&1 )
hour=${hour:2}

day=$( { i2cget -f -y...

Yes is RS232.

Corona, my function also work with IOCTL and timer every 10 ms..

I can also try your method but in a while(1){ }? you can write your code pls?

thanks

i've doing:


every 2ms:


ioctl(fd, FIONREAD, &bytes_avaiable);
static int i=0;
array[i]=bytes_avaiable;

if (bytes_avaiable<=310 && i>=10 && array[i]==array[i-1] &&...

you say:


unsigned char c='\0';
int i=0;
int flag=0;
while(1){
if(pfds[0].revents == POLLIN){
iIn = read(fd, c, 1);
if(c != 'm'){
...

My protocol:

M A M <-- header first 3 bytes
len payload <-- 2 byte
payload <--1--300 byte
End Of Message='m' <--1 byte
checksum<--1 byte

i have a packet of data very 50 ms without newlines

I've checked all system call in open function and i dont have errors!

Now how modified read function?

thanks

and what i must use?
how modified my READ function? thanks

But is correct use poll function or i must use IOCTL function?

i can use IOCTL every 2 ms with a TIMER (in Qt--> QTimer) and if for 5 time number of byte is the same then read!

Is correct ?
:D

:D simply...but why i have error in my packet message? :(:confused:

how checking the return values for my calls? thanks?

I've modified my Read Function:

int cClassSerialLIB::ReadPort_poll(){

int iIn;
struct pollfd pfds[5];

pfds[0].fd =...

hi, I've a problem on my C/C++ program with Posix Library.

I have to read data from the serial but I have incorrect data, in fact I get a bunch of zeros:
"2953.3174, 2785.2126, 0.0, 0.0, 0.0,...

ah ok tomorrow i try.. now good night and thanks

no, your code is very complicated!

why? it work correctly.. is a problem with FIFO memory...

i write At command on serial port for connect modem at server!

Hello,
I am using the termios library to write data that I get from a Bluetooth device to a modem via serial.
The data arrive from the Bluetooth device correctly every 50ms and I have to bypass...

PROBABLY cut -c 2- ?

ok i try

---------- Post updated at 04:44 AM ---------- Previous update was at 02:56 AM ----------

i have a problem because i not have a file.
But i have a result of a command for example:
...

Hi i have need of read a file value with cat command and remove first 2character for example cat /sys/class/rtc/day

0x12

Remove char

12

And put this value in a variable

is possible...

no i have same error..
AT!PADCONN=1
OK

CONNECT PAD: 1,0
Unable to open socket

no chat wait answer for 60 sec so i think that error is on answer of modem:

infact with minicom

at!padconn=1
i have
at!padconn=1 ...

It work
giuseppe@ubuntu:~/Scrivania/SCRIPTMODEM$ ./modem2.sh
AT+CREG?
+CREG: 0,1

OK
AT!PADSETUP=1,2,82.91.28.127,0,9940,0,1
OK
AT+CGDCONT=1,"IP","web.omnitel.it"
OK
AT!PADCONN=1
OK
...

giuseppe@ubuntu:~/Scrivania/SCRIPTMODEM$ ./modem2.sh
^C^CModem not registered

With -V only script is blocked and after i must do ^C for exit :(