thanks Allan.......but...

Archiver

Hi again,

Thanks Allan for the reply.If you look at my other posts regarding
using an RF link you'll see what I'm trying to do.Simply, I want to
wirelessly download from the Parallax editor to my BS2sx....sounds
easy. My transmitter only needs ground and data in.....so how do I
fool the editor with an echo. And yes, loopback works with pins 6+7
shorted on my DB-9.

thanks....John King

Archiver

Ok, you sound like you have some of the pieces
in place, and I understand why ANY wires are
not-cool.
See: http://www.emesys.com/BS2clone.htm

This has what the IDE is sending, and what it
expects back. It's pretty simple, but it's not
only a simple 'echo' -- there needs to be some
'live response' messages from the 'target' BS2
to keep the IDE happy. I assume you'd have to
have some device 'local' to the PC to send these
responses to the PC. Note EVERY byte the PC
sends to the BS2 is echo'ed to the PC, THEN the
BS2 response comes in to the PC.

At the BS2sx end, you'll still need some way of
triggering the ATN (aka DTR) signal to reset the
BS2sx for programming.

--- In basicstamps@yahoogroups.com, "jking77777" <jking@n...> wrote:
> Hi again,
>
> Thanks Allan for the reply.If you look at my other posts regarding
> using an RF link you'll see what I'm trying to do.Simply, I want to
> wirelessly download from the Parallax editor to my BS2sx....sounds
> easy. My transmitter only needs ground and data in.....so how do I
> fool the editor with an echo. And yes, loopback works with pins 6+7
> shorted on my DB-9.
>
> thanks....John King

Archiver

The problem is the timing of the ATN pin -- it's not trival. What you
should do is download our programming specification docs (for 3rd-party
developers) and go through it; you'll find the details there.

http://www.parallax.com/html_pages/downloads/tokenizer/tokenizer.asp

-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office

---

Original Message

---

From: jking77777 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=XCPaUJAq4oZneI1eg5f1Z6N-MkSkZMiMf8IgNBfDTrlsTaqZV0SMQIUCvRsY9OwbiIe6FASfzCLx1he4]jking@n...[/url
Sent: Thursday, May 06, 2004 9:41 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] thanks Allan.......but...


Hi again,

Thanks Allan for the reply.If you look at my other posts regarding
using an RF link you'll see what I'm trying to do.Simply, I want to
wirelessly download from the Parallax editor to my BS2sx....sounds
easy. My transmitter only needs ground and data in.....so how do I
fool the editor with an echo. And yes, loopback works with pins 6+7
shorted on my DB-9.

thanks....John King

Archiver

At 02:40 PM 5/6/04 +0000, jking77777 wrote:
>Hi again,
>
>Thanks Allan for the reply.If you look at my other posts regarding
>using an RF link you'll see what I'm trying to do.Simply, I want to
>wirelessly download from the Parallax editor to my BS2sx....sounds
>easy. My transmitter only needs ground and data in.....so how do I
>fool the editor with an echo. And yes, loopback works with pins 6+7
>shorted on my DB-9.
>
>thanks....John King

John -

The "trick" if you will is for the firmware in the RF receiver attached to the Stamp to be able to manipulate the DTR pin in a manner appropriate for the Stamp programming protocol. This means that a special sequence be sent by the RF transmitter, at an appropriate time, and with appropriate timing, and then have that special sequence be recognized by the receiver and then have the receiver manipulate the DTR pin accordingly. At least that's how I remember it being done.
Needless to say this is not something that is easily done.

Parallax used to have an RF solution but it appears that it's no longer available.
Sorry about that.

Regards,

Bruce Bates

Archiver

At 02:40 PM 5/6/04 +0000, jking77777 wrote:
>Hi again,
>
>Thanks Allan for the reply.If you look at my other posts regarding
>using an RF link you'll see what I'm trying to do.Simply, I want to
>wirelessly download from the Parallax editor to my BS2sx....sounds
>easy. My transmitter only needs ground and data in.....so how do I
>fool the editor with an echo. And yes, loopback works with pins 6+7
>shorted on my DB-9.
>
>thanks....John King

John -

Sorry that I said DTR in my last post, I meant to say ATN which is the pin that must be manipulated.

Bruce




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