Re: [Hamlib-developer] RotorEZ 'p' command results

[Orv B. <or...@or...>]

On Wed, 2003-02-12 at 14:44, Nate Bargmann wrote:
[SNIP]
> 
> Very interesting, Orv!
> 
> So, it appears the semi-colon is the first character of the returned
> string.  Of course it moves to the right on each successive read as
> there are always characters left in the buffer from previous commands
> (1, then 2, then 3, and so on).
> 
> Can you edit rotorez/rotorez.h, line 34 and change the line:
> 
> #define AZ_READ_LEN 3
> 
> to
> 
> #define AZ_READ_LEN 4
> 
> for me?
> 
> Then you should see consistent strings reported on the line below RX 4
> bytes.  It will do no harm to set it higher, say 5 or 6 as the read
> function will merely have wait the time out time.
> 
> Please post that output and I should be able to fix it tonight.
> 
> 73, de Nate >>

DONE.  I changed it to 4, and it looks like that fixed it.   The azimuth
readout is now correct and consistent.

Notice that I read it out several times and it showed 333 degrees on all
tries.

I then commanded the rotor to turn to 0 degrees.  The readbacks after
that consistently show it at 0 degrees (well, 359 degrees, which is
rounded to 0).

Nice work, Nate!

73 - Orv W6BI -

[obeach@jake hamlib-1.1.4cvs-030210]$ cd tests
[obeach@jake tests]$ ./rotctl -m 401 -s 4800 -r /dev/ttyS0 -vvvv
rot:rot_init called
rot: loading backend rotorez
rotorez: initrots_rotorez called
rot_register (401)
rot_register (402)
rot_register (403)
rotorez: rotorez_rot_init called
rot:rot_open called
Opened rot model 401, 'Rotor-EZ'

Rot command: p
rotorez: rotorez_rot_get_position called
rotorez: rotorez_send_priv_cmd called
TX 4 bytes
0000     41 49 31 3b    AI1;
RX 4 bytes
0000     3b 33 33 33    ;333
rotorez: azimuth = 0.0 degrees
Azimuth: 0.000000
Elevation: 33.519203
Rot command: p
rotorez: rotorez_rot_get_position called
rotorez: rotorez_send_priv_cmd called
TX 4 bytes
0000     41 49 31 3b    AI1;
RX 4 bytes
0000     3b 33 33 33    ;333
rotorez: azimuth = 0.0 degrees
Azimuth: 0.000000
Elevation: 33.519203
Rot command: p
rotorez: rotorez_rot_get_position called
rotorez: rotorez_send_priv_cmd called
TX 4 bytes
0000     41 49 31 3b    AI1;
RX 4 bytes
0000     3b 33 33 33    ;333
rotorez: azimuth = 0.0 degrees
Azimuth: 0.000000
Elevation: 33.519203
Rot command: P 000
Azimuth: Elevation: 000
rotorez: rotorez_rot_set_position called
rotorez: rotorez_send_priv_cmd called
TX 7 bytes
0000     41 50 31 30 30 30 3b   AP1000;
rotorez: rotorez_send_priv_cmd called
TX 4 bytes
0000     41 4d 31 3b    AM1;

Rot command: p
rotorez: rotorez_rot_get_position called
rotorez: rotorez_send_priv_cmd called
TX 4 bytes
0000     41 49 31 3b    AI1;
RX 4 bytes
0000     3b 33 35 39    ;359
rotorez: azimuth = 0.0 degrees
Azimuth: 0.000000
Elevation: 33.519203
Rot command: p
rotorez: rotorez_rot_get_position called
rotorez: rotorez_send_priv_cmd called
TX 4 bytes
0000     41 49 31 3b    AI1;
RX 4 bytes
0000     3b 33 35 39    ;359
rotorez: azimuth = 0.0 degrees
Azimuth: 0.000000
Elevation: 33.519203
Rot command: p
rotorez: rotorez_rot_get_position called
rotorez: rotorez_send_priv_cmd called
TX 4 bytes
0000     41 49 31 3b    AI1;
RX 4 bytes
0000     3b 33 35 39    ;359
rotorez: azimuth = 0.0 degrees
Azimuth: 0.000000
Elevation: 33.519203
Rot command:

-- 
Orv Beach <or...@or...>