Teensy 2.0
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Greg Surges
Sep 9, 2010, 6:04:04 PM9/9/10
to USB-Octomod
Hi everyone,
I just got word that the Teensy 2.0 is out of stock right now, and
there's a backorder. I have contacted Robin at PJRC about
availability, and will post back what I hear. I've contacted everyone
who placed a PCB order, to confirm that they wanted to proceed with
the order. I'm hoping people will want to proceed, because I stand to
lose money on fees otherwise. The timing is really unfortunate.
The Teensy is apparently being used in some kind of PlayStation 3
unlocking device, so supplies are limited right now. You can find some
on ebay, but the prices are insane, and I suggest waiting until
they're available from a reputable source.
That being said, it'd be awesome if someone wanted to try hacking this
thing to work with a Teensy++, which is a similar microcontroller, but
with more pins. Thoughts?
Thanks for understanding, and thanks for the response to this project,
it's been awesome!
- Greg
I just got word that the Teensy 2.0 is out of stock right now, and
there's a backorder. I have contacted Robin at PJRC about
availability, and will post back what I hear. I've contacted everyone
who placed a PCB order, to confirm that they wanted to proceed with
the order. I'm hoping people will want to proceed, because I stand to
lose money on fees otherwise. The timing is really unfortunate.
The Teensy is apparently being used in some kind of PlayStation 3
unlocking device, so supplies are limited right now. You can find some
on ebay, but the prices are insane, and I suggest waiting until
they're available from a reputable source.
That being said, it'd be awesome if someone wanted to try hacking this
thing to work with a Teensy++, which is a similar microcontroller, but
with more pins. Thoughts?
Thanks for understanding, and thanks for the response to this project,
it's been awesome!
- Greg
technician4
Sep 15, 2010, 1:01:15 AM9/15/10
to USB-Octomod
i just got this from pjrc, looks like good news:
"Your order for Teensy or Teensy++ is on backorder. Until yesterday,
we believed all Teensy and Teensy++ backorders would wait until
November. Fortunately, the situation has improved.
Another batch of the Teensy boards (not the ++) just went into
production. We believe these boards will begin shipping on Sept 27.
We're trying to get them ready early, but please understand this date
is an estimate.
We also received encouraging news for Teensy++, but no specific time
frame yet. It all depends upon when Atmel will send us the chips.
October is looking likely. The smaller Teensy board will definitely
be available first, since they are in production now!
Before those next Teensy board arrive, we will contact everyone with a
backorder and offer a way to switch from Teensy++ to Teensy (at the
lower price), while retaining position in the queue. If you have a
Teensy++ on backorder, now would be a good time to evaluate your
project's requirements to see if the smaller and less expensive Teensy
will meet your needs.
With the sudden demand for Teensy and similar boards, several
companies with no prior experience making USB development boards are
rushing new products to the market.
Many of these new boards feature the AT90USB162 chip, which we used on
the original Teensy 1.0 years ago. False claims have been made this
would be an upgrade from Teensy 2.0. Nothing could be farther from
the truth! This chip's limitations are the main reason we created
version 2.0. The smaller RAM and lack of analog inputs were
problematic for many projects, but another important factor was the
limited DPRAM in the '162 chip.
DPRAM is the buffer memory between the USB port and the
microprocessor. It's separate from the normal RAM used for data and
variables. The chips we use on Teensy 2.0 and Teensy++ 2.0 are
capable of implementing 6 data endpoints and of course the control
endpoint. They have 832 byte of DPRAM, which allows all 6 data
endpoints to double buffer 64 byte packets (the largest packet size
used on 12 Mbit/sec USB, except for multimedia streaming). However,
the '162 chip can implement only 4 USB data endpoints and only 2
support double buffering, but with its tiny 176 byte DPRAM, there
isn't even enough DPRAM for those 2 endpoints to double buffer 64 byte
packets.
Certainly '162 chip can implement many useful protocols. But if you
want a flexible platform that can implement a wide range of USB
devices, the chips with larger DPRAM are vastly more flexible. There
are 3 USB software stacks in widespread use on these chips (Dean
Camera's LUFA, PJRC, and Atmel's reference code), and all 3 only offer
all device types on the chips with larger DPRAM. PJRC discontinued
boards with the '162 chip and created Teensy 2.0 because of its much
greater feature set and USB capability.
I'm really sorry for the delay. I know how painful waiting on
backorder can be."
"Your order for Teensy or Teensy++ is on backorder. Until yesterday,
we believed all Teensy and Teensy++ backorders would wait until
November. Fortunately, the situation has improved.
Another batch of the Teensy boards (not the ++) just went into
production. We believe these boards will begin shipping on Sept 27.
We're trying to get them ready early, but please understand this date
is an estimate.
We also received encouraging news for Teensy++, but no specific time
frame yet. It all depends upon when Atmel will send us the chips.
October is looking likely. The smaller Teensy board will definitely
be available first, since they are in production now!
Before those next Teensy board arrive, we will contact everyone with a
backorder and offer a way to switch from Teensy++ to Teensy (at the
lower price), while retaining position in the queue. If you have a
Teensy++ on backorder, now would be a good time to evaluate your
project's requirements to see if the smaller and less expensive Teensy
will meet your needs.
With the sudden demand for Teensy and similar boards, several
companies with no prior experience making USB development boards are
rushing new products to the market.
Many of these new boards feature the AT90USB162 chip, which we used on
the original Teensy 1.0 years ago. False claims have been made this
would be an upgrade from Teensy 2.0. Nothing could be farther from
the truth! This chip's limitations are the main reason we created
version 2.0. The smaller RAM and lack of analog inputs were
problematic for many projects, but another important factor was the
limited DPRAM in the '162 chip.
DPRAM is the buffer memory between the USB port and the
microprocessor. It's separate from the normal RAM used for data and
variables. The chips we use on Teensy 2.0 and Teensy++ 2.0 are
capable of implementing 6 data endpoints and of course the control
endpoint. They have 832 byte of DPRAM, which allows all 6 data
endpoints to double buffer 64 byte packets (the largest packet size
used on 12 Mbit/sec USB, except for multimedia streaming). However,
the '162 chip can implement only 4 USB data endpoints and only 2
support double buffering, but with its tiny 176 byte DPRAM, there
isn't even enough DPRAM for those 2 endpoints to double buffer 64 byte
packets.
Certainly '162 chip can implement many useful protocols. But if you
want a flexible platform that can implement a wide range of USB
devices, the chips with larger DPRAM are vastly more flexible. There
are 3 USB software stacks in widespread use on these chips (Dean
Camera's LUFA, PJRC, and Atmel's reference code), and all 3 only offer
all device types on the chips with larger DPRAM. PJRC discontinued
boards with the '162 chip and created Teensy 2.0 because of its much
greater feature set and USB capability.
I'm really sorry for the delay. I know how painful waiting on
backorder can be."
Greg Surges
Sep 15, 2010, 4:58:22 AM9/15/10
to usb-o...@googlegroups.com
Soy Sos
Sep 15, 2010, 10:54:28 AM9/15/10
to usb-o...@googlegroups.com
Thanks Greg,
to be sure, do I order the Teensy++/2.0 board from you when they arrive
or from elsewhere? No rush on my end.
Herman
412.608.5152 mobile
412.371.4878 studio
http://tuffsoundrecording.com
to be sure, do I order the Teensy++/2.0 board from you when they arrive
or from elsewhere? No rush on my end.
Herman
412.371.4878 studio
http://tuffsoundrecording.com
Greg Surges
Sep 15, 2010, 11:18:34 AM9/15/10
to USB-Octomod
Hey Herman,
It depends. First of all, make sure you get the Teensy 2.0. The Teensy+
+ is a larger board, and might not fit properly.
I would be willing to provide pre-programmed Teensy 2.0s when they are
available. If you're comfortable loading your own with my code using
the Arduino software, then you can just order straight from the
manufacturers: http://www.pjrc.com/.
- Greg
It depends. First of all, make sure you get the Teensy 2.0. The Teensy+
+ is a larger board, and might not fit properly.
I would be willing to provide pre-programmed Teensy 2.0s when they are
available. If you're comfortable loading your own with my code using
the Arduino software, then you can just order straight from the
manufacturers: http://www.pjrc.com/.
- Greg
loudestwarning
Sep 15, 2010, 11:38:51 AM9/15/10
to usb-o...@googlegroups.com
Hi,
I too would be interested in that, though I hope to be able to programme boards at some point soon I can't as yet, so a pre-programmed one would, indeed, be a boon!
Charlie
I too would be interested in that, though I hope to be able to programme boards at some point soon I can't as yet, so a pre-programmed one would, indeed, be a boon!
Charlie
Soy Sos
Sep 15, 2010, 11:29:12 AM9/15/10
to usb-o...@googlegroups.com
Sorry I keep replying to the group message.
If you will make it available, I think I'd prefer to order the board (Teensy 2.0)
loaded by you in advance. Let me know the cost if you decide to go that route
and I'll send payment when ever you like. There's no rush whatsoever
on my end, so just let me know.
Thanks,
If you will make it available, I think I'd prefer to order the board (Teensy 2.0)
loaded by you in advance. Let me know the cost if you decide to go that route
and I'll send payment when ever you like. There's no rush whatsoever
on my end, so just let me know.
Thanks,
Greg Surges
Sep 15, 2010, 12:10:47 PM9/15/10
to USB-Octomod
I will do a head count of interested people when Teeny boards are
available, and provide a few pre-programmed.
available, and provide a few pre-programmed.
Mr Ralf Schildan
Sep 16, 2010, 6:08:41 PM9/16/10
to usb-o...@googlegroups.com
Hi Greg,
the PCB has arrived. Count me in for a preprogrammed Teensy from you, if possible.
Mainly because I can't preorder without a credit card.
Cheers,
Ralf
--- Greg Surges <sur...@gmail.com> schrieb am Mi, 15.9.2010:
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