Subject:
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Re: data recording in BrickOS ?
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Mon, 26 Sep 2005 14:17:08 GMT
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Viewed:
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4573 times
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Am Mon, 26 Sep 2005 12:35:05 GMT
"Francois Bardet" <f.bardet@voila.fr> tippte:
> Hi Mindstormers,
>
> 1) Does BrickOS allow to write/read measured data into the RCX memory,
> in order to plot or process it later on the computer ?
this is not the default
i programmed this functions, but the docu is in only in german avialible
if you can read german, have a look at
http://www.uni-kassel.de/~holler/ECRobot/
but there was an other implementation from cs148 at Department of
Computer Science der Brown University at
http://www.cs.brown.edu/courses/cs148/brickOS
but this page exists no longer
> If yes, what are the command lines to :
> - allocate the memory space ?
> - to write and read ?
> - free this memory allocation ?
> - send this data to the computer through the IR tower ?
>
> 2) Within BrickOS, how can I have my rcx wait for an IR order (from
> the tower, or from an other rcx), without to much disturbing an other
> task, (that means without wasting the rcx power).
have a look kernel/program.c
this example is waiting the command CMDgetlog
+ diff -rwBcpN brickos-0.2.6.10.6/kernel/program.c
legOS/kernel/program.c + *** brickos-0.2.6.10.6/kernel/program.c Tue Sep 24 05:10:06 2002
+ --- legOS/kernel/program.c Wed Jan 19 12:35:37 2005
+ *************** const unsigned char min_length[]={
+ *** 82,88 ****
+ 4, // CMDdata
+ 2, // CMDrun
+ 2, // CMDirmode
+ ! 2 // CMDsethost
+ };
+
+ static program_t programs[PROG_MAX]; //!< the programs
+ --- 82,89 ----
+ 4, // CMDdata
+ 2, // CMDrun
+ 2, // CMDirmode
+ ! 2, // CMDsethost
+ ! 2 // CMDgetlog
+ };
+
+ static program_t programs[PROG_MAX]; //!< the programs
+ *************** volatile unsigned char packet_len;
+ *** 92,97 ****
+ --- 93,99 ----
+ volatile unsigned char packet_src; //!< packet sender
+
+ static sem_t packet_sem; //!< synchronization
semaphore + + sem_t log_sem;
+
+ #if 0
+ #define debugs(a) { cputs(a); msleep(500); }
+ *************** int program_valid(unsigned nr) {
+ *** 124,129 ****
+ --- 126,133 ----
+ static void program_run(unsigned nr) {
+ if(program_valid(nr)) {
+ program_t *prog=programs+nr;
+ + //! reset the log semaphore
+ + sem_init(&log_sem,0,1);
+
+ // initialize data segments
+ //
+ *************** static int packet_consumer(int argc, cha
+ *** 302,310 ****
+ --- 307,330 ----
+ lnp_addressing_write(&acknowledge,1,packet_src,0);
+ }
+ break;
+ + case CMDgetlog:
+ + {
+ + lnp_addressing_write(&acknowledge,1,packet_src,0);
+ + /* only dump the log if no programs are running */
+ + if (nb_tasks <= nb_system_tasks) {
+ + cputs("dump");
+ + dump_log((int)buffer_ptr[1]);
+ + cls();
+ + }
+ + else
+ + cputs("err");
+ + sleep(1);
+ + }
+ + break;
+
+ default:
+ debugs("error");
+ + sleep(1);
+ }
+ }
+ }
+ *************** void program_init() {
+ *** 657,662 ****
+ --- 677,683 ----
+ void program_shutdown() {
+ lnp_addressing_set_handler(0,LNP_DUMMY_ADDRESSING);
+ sem_destroy(&packet_sem);
+ + sem_destroy(&log_sem);
+
+ #ifdef CONF_LR_HANDLER
+ lr_shutdown();
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Message is in Reply To:
 | | data recording in BrickOS ?
|
| Hi Mindstormers, 1) Does BrickOS allow to write/read measured data into the RCX memory, in order to plot or process it later on the computer ? If yes, what are the command lines to : - allocate the memory space ? - to write and read ? - free this (...) (19 years ago, 26-Sep-05, to lugnet.robotics.rcx)
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