function lnp_addressing_send

Julien Malherbe — Tue, 18 Jul 2006 03:33:47 -0000

Hello here!

I am having some trouble with the function
lnp_addressing_send...

I must be doing something wrong: When I am using it,
the time it is taking is almost strange: some times it
will be very short and some times very long...
and sometime no message is sent. I try to understand
the problem but I can't...

I'm using a winXP and usb tower. BrickOS and lnphost
are running with cygwin.

Sometimes, it is working well and sometime the function
is blocking the program...

If some one can help me, it will be nice.
Thanks,
julien.

sending integrity message from usb tower

Anonymous — Fri, 31 Mar 2006 14:57:53 -0000

Hi, I'm trying to send a message from the usb tower to
the RCX. Here is the code

int main(int argc, char *argv[]) {
struct lnptower tower;
char *device = "/dev/usb/legousbtower0";
unsigned flags=0;
unsigned char data = 1;

if (lnp_open(&tower,device,flags)) {
fprintf(stderr,"Failed to connect to tower\n");
exit(EXIT_FAILURE);
}

while(1){
//lnp_addressing_send(&tower, &data, 1, 0, 0);
lnp_integrity_send(&tower, &data, 1);
sleep(1);
printf("1\n");
}
}

Unfortunately, it seems that the loop is executed only
once. Is there a blocking mechanism?

Does the RCX need to answer something to unblock the tower?

Thanks for your help!!

Yann Sagon

Recent changes to support-requests

function lnp_addressing_send

sending integrity message from usb tower