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screaming-pain at libero.it screaming-pain at libero.itThank you Sylvain and Dario! It was a cable problem, I bought a usb one and It works, the only problem is that now I get a NACK, I read it could be a timing problem and I tried to comment the printf as suggested in a recent post, but it did not work. This is what happens: loretta at loretta-laptop:~/osmocom-bb/src/host/osmocon$ ./osmocon -p /dev/ttyUSB0 -m c123xor ../../target/firmware/board/compal_e88/hello_world. e88loader.bin got 2 bytes from modem, data looks like: 2f c8 /. got 5 bytes from modem, data looks like: 1b f6 02 00 41 ....A got 1 bytes from modem, data looks like: 01 . got 1 bytes from modem, data looks like: 40 @ Received PROMPT1 from phone, responding with CMD read_file(../../target/firmware/board/compal_e88/hello_world.e88loader.bin): file_size=19560, hdr_len=4, dnload_len=19567 got 1 bytes from modem, data looks like: 1b . got 1 bytes from modem, data looks like: f6 . got 1 bytes from modem, data looks like: 02 . got 1 bytes from modem, data looks like: 00 . got 1 bytes from modem, data looks like: 41 A got 1 bytes from modem, data looks like: 02 . got 1 bytes from modem, data looks like: 43 C Received PROMPT2 from phone, starting download handle_write(): 1023 bytes (1023/19567) handle_write(): 768 bytes (1791/19567) handle_write(): 768 bytes (2559/19567) handle_write(): 768 bytes (3327/19567) handle_write(): 768 bytes (4095/19567) handle_write(): 768 bytes (4863/19567) handle_write(): 768 bytes (5631/19567) handle_write(): 768 bytes (6399/19567) handle_write(): 768 bytes (7167/19567) handle_write(): 768 bytes (7935/19567) handle_write(): 768 bytes (8703/19567) handle_write(): 768 bytes (9471/19567) handle_write(): 768 bytes (10239/19567) handle_write(): 768 bytes (11007/19567) handle_write(): 768 bytes (11775/19567) handle_write(): 768 bytes (12543/19567) handle_write(): 768 bytes (13311/19567) handle_write(): 768 bytes (14079/19567) handle_write(): 768 bytes (14847/19567) handle_write(): 768 bytes (15615/19567) handle_write(): 768 bytes (16383/19567) handle_write(): 768 bytes (17151/19567) handle_write(): 768 bytes (17919/19567) handle_write(): 768 bytes (18687/19567) handle_write(): 768 bytes (19455/19567) handle_write(): 112 bytes (19567/19567) handle_write(): finished got 1 bytes from modem, data looks like: 1b . got 1 bytes from modem, data looks like: f6 . got 1 bytes from modem, data looks like: 02 . got 1 bytes from modem, data looks like: 00 . got 1 bytes from modem, data looks like: 45 E got 1 bytes from modem, data looks like: 53 S got 1 bytes from modem, data looks like: 16 . Received DOWNLOAD NACK from phone, something went wrong :( got 1 bytes from modem, data looks like: 66 f got 1 bytes from modem, data looks like: 74 t got 1 bytes from modem, data looks like: 6d m got 1 bytes from modem, data looks like: 74 t got 1 bytes from modem, data looks like: 6f o got 1 bytes from modem, data looks like: 6f o got 1 bytes from modem, data looks like: 6c l Received FTMTOOL from phone, ramloader has aborted got 1 bytes from modem, data looks like: 65 e got 1 bytes from modem, data looks like: 72 r got 1 bytes from modem, data looks like: 72 r got 1 bytes from modem, data looks like: 6f o got 1 bytes from modem, data looks like: 72 r got 1 bytes from modem, data looks like: 00 . Most of the times though it just arrives to the handle_write():finished prints out few "got 1 bytes from modem, data looks like: " lines and it stops there Do you have any suggestion? What should I check? Thanks for your help, Loretta >----Messaggio originale---- >Da: dario.lombardo at libero.it >Data: 4-apr-2011 18.01 >A: "screaming-pain at libero.it"<screaming-pain at libero.it> >Ogg: Re: Problem with osmocon (beginner) > >On 04/04/2011 05:33 PM, screaming-pain at libero.it wrote: >> what is going on? can anyone help me to understand how to proceed? >> >Sometimes it happens that moving slightly the jack is enough to break >the serial line. Sometimes I have to try many times, without touching >the phone before the fw loads. Try to insist without moving the phone, >and If you are not lucky try to change cable. >