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Hi everyone,
I have to say I have found these messages very interesting, and was wanting
to use lnp myself but i do not know where to write and make my programs. And
I would also like to find out more about how you write the pc code and the
rcx code below, and how this works and where it goes?
I have a good understanding of programming, it's just this is a very new
area to me, and is truly very interesting,
> PC PROGRAM:
> ===========================================================
> #include <liblnp.h>
> #include <stdio.h>
> #include <stdlib.h>
> #include <unistd.h>
> #include <sys/time.h>
> #include <sys/types.h>
> #include <string.h>
>
> #define MY_PORT 7
>
> void addr_handler(const unsigned char* data,unsigned char length,
> unsigned char src)
> {
> switch(data[0]) {
> case 's':
> printf( "%s\n", &data[1] );
> break;
> case 'i':
> printf( "%d\n", data[1] * 256 + data[2] );
> break;
> default:
> printf( "unknown type\n" );
> }
> fflush( stdout );
> }
>
> int main ( int argc, char **argv ) {
>
> if ( lnp_init ( 0, 0, 0, 0, 0 ) ) {
> perror ( "lnp_init" );
> exit(1);
> } else {
> printf ( "init OK\n" );
> }
>
> lnp_addressing_set_handler (MY_PORT, addr_handler );
>
> while ( 1 ) {
> };
>
> return 0;
> }
>
> ----------------------------------------------------------
> RCX PROGRAM:
> ==========================================================
> #include <lnp.h>
> #include <conio.h>
> #include <string.h>
> #include <lnp-logical.h>
> #include <dkey.h>
>
> #define MY_PORT 2
> #define DEST_HOST 0x8
> #define DEST_PORT 0x7
> #define DEST_ADDR ( DEST_HOST << 4 | DEST_PORT )
>
> unsigned char buf[3];
> unsigned char len = 3;
>
> void printInt(int i)
> {
> int result;
>
> buf[0] = 'i';
> memcpy(buf + 1, &i, 2);
> result = lnp_addressing_write( buf, len, DEST_ADDR, MY_PORT);
> }
>
> wakeup_t prgmKeyCheck(wakeup_t data)
> {
> return dkey == KEY_PRGM;
> }
>
> int main ( int argc, char **argv )
> {
> int c=0;
>
> lnp_logical_range ( 0 );
> while( 1 ) {
> if( prgmKeyCheck( 0 ) ) break;
> printInt( c );
> cputw( c++ );
> msleep ( 200 );
> }
> cputs ( "done" );
> return 0;
> }
> -------------------------------------------------------------
Does anyone one know of any good books or websites for this topic?
So far I have BrickOS configured and running in cygwin, and I also have
winLNP downloaded and placed it in my brickOS directory like the site i was
reading told me to. But as for what to do now I am stuck.
If anyone could help with the above questions I would be most grateful.
Thanks
Andrew
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Message has 1 Reply:
 | | Re: LNP problem
|
| (...) I don't know anything about Windows, but I started using LNP on Linux with good results lately. It really isn't that hard once you get your first programm running ... :) I wrote a little remote-control/monitor app based on LNP. While for Gnome (...) (22 years ago, 29-Jan-03, to lugnet.robotics.rcx.legos)
|
Message is in Reply To:
| | Re: LNP problem
|
| (...) Ok. This is indeed the result if you run the original LNP package. There are several problems with your sources, too. So try the following to get things done: First, go to the lnpd subdir and edit rcxtty.c. In function tty_init you find a line (...) (22 years ago, 5-Jan-03, to lugnet.robotics.rcx.legos)
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