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Recent content by DCO_81

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    Help me solve jffs segmentation fault

    Re: jffs segmentation fault FYI: After kernel patch to 2.4x it runs proper ...
  2. D

    Help me solve jffs segmentation fault

    jffs segmentation fault Hello everybody, I´d like to save some files on my hms720´s flash. So I start to mount jffs: mount /mnt/jffs Then I create/copy a file on this file system. It stores proper for files <= 11 byte. For files > 11 byte I get an segmentation fault and a mem dump. Can...
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    how to store data in arm7 flash

    sam7 iap api Hi, when my arm7 mc downloads a file in his ram I want to store it permanent in the flash. So when I reboot it the data should not get lost. How can I achieve this?
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    concurrent threads: segmentation fault

    Thank you for your tip. I also forgot to link -lpthread and add it to my makefile.
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    concurrent threads: segmentation fault

    Hi, I have this simple concurrent prog with 2 threads. It compiles fine but when I start it I get a segmentation fault. Why? #include <pthread.h> #include <iostream> using namespace std; void fun1() { for (int i=0; i < 100; i++) cout << "1" << endl; pthread_exit(0); } void fun2() {...
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    Which programming language should I start with?

    Re: counselling Hi Clive, you should first ask yourself what kind of programs you like to develop. The decision of the programming language depends on that.
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    2nd attempt of bind fault

    It´s no multithreaded or multiprocess program. How can I check the OS released the port again?
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    2nd attempt of bind fault

    Hi, has anybody ever got a problem like this. My program waits till it´s connected via ppp with another system. Then it calls a bind after a normal socket is opened. Followed by an listen and accept I can send an receive data. But when I start my program again bind always gives me -1 as return...
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    Send data to embedded system via gsm data call

    I have to use a data call cause it´s required. We´re talking about 1MB.
  10. D

    Send data to embedded system via gsm data call

    Hi, is it possible to connect a linux pc to an embedded system (ARM7 - 32bit) via GSM data call to receive and transmit raw bytes? Let´s say, I wrote a program connecting to another one with AT-commands. How do I send now files (or just some bytes) to my target?
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    problem with read from file descriptor

    Yepp! And I needed to add tcflush too, cause some garbage from prior starts where on the line.
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    problem with read from file descriptor

    I´ll try to explain the strange behaviour of the program. It´s able to write and read from the ttyS0, so everything is fine. But when I start it the next time, it writes proper values, but it doesn´t read anything. A further re-start and it works again, the next re-start causes the read-failure...
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    problem with read from file descriptor

    Hello again, the program runs fine with my option fusion gsm-pcmcia card. But when I try use it with siemens MC 45T on ttyS0 it won´t work. The init is well done and I can send commands. But when it comes to while ((nbytes = read(fd, &response[writePos], BUFFERSIZE - readPos)) > 0) it...
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    problem with read from file descriptor

    The replace while/for doesn´t help. It´s very strange, but once I get "Byte receiced" : 41, 54, d, d, a, 4f, 4b, d, a (HEX) -> A,T,<CR>,<CR>,<LF>,O,K,<CR>,<LF> Here is the code for UART (it´s in a constructor): Serial::Serial (char *device_name) { fd = open(device_name, O_RDWR |...

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