Re: [ECOS] Question about Hello World eCos example

[Robin Farine <acnrf at dial dot eunet dot ch>]

Andre Sebastien <sebastien.andre@sxb.bsf.alcatel.fr> writes:

[...]

> It s exactly that i try to print : printf("Hello, eCos world! %d \n",5);
> 
> PS: what is $0 and #BB at the beginning and the end of output ?

Not $0, but $O (O packet). The GDB protocol uses such packets to output text
non-related to GDB itself (e.g. your printf). The protocol also appends a
checksum to every packet, the #BB in your case.

> But never the program go out the function "printf", it seems to go in a
> infinite loop !!!!!  What does it wrong ?

It's waiting for an ack from the remote side of a GDB connection !!!!!

Try to set the option below in your ecos.ecc:

    cdl_component CYGDBG_HAL_DIAG_TO_DEBUG_CHAN {
        user_value 0
    };

[...]

Robin