Take a deep breath, maybe get a massage. Patience is a virtue for sure. I'm sure that nuggets won't be enough for you. You want details and a delivery date, maybe even a couple of chips and you're not going to get those for a while ... an undefined while. Chip and his elves are doing good work ... and there's a lot of work involved ... design ... layout ... testing ... repeated refinement. They did a great job with the Prop-1 and they insist on doing a great job with the Prop-2. It'll be ready when it's ready.
Look what happened with the iPhone 4S... It was everything people hoped for and more, but it fell flat because Apple called it an iPhone 4S and not an iPhone 5.
Shss... PropII is only a rumour!
The ?????? chip (formerly code named Prop II) will be here when its here. Nothing we say can possibly make it go any faster, perhaps unless you have a few $Ms to throw into the pot. And then it may not meet what we want because it is rushed.
It would be nice to get an update on the status of the Prop II. Parallax was very open about the process a few months ago, but there have been no updates for a while. I understand that we don't want to burden the design team by having them answer a lot of questions. Maybe someone in Parallax could spend just a few minutes to give us an update.
Dr hydra,
I suspect that the number of people who are "in the know" is limited to Chip Gracey and a very small number of others who are actually doing the work.
For sure does not include me. I'm just winding you up a bit:)
We are all waiting and biting our nails like yourself.
But don't forget there is a lot of the Prop I world that is not explored yet.
Dr Hydra: I am not in the know either. Otherwise I would not be able to comment.
I think heaters comments sums it up completely.
I am fully occupied with Prop I - there is still so much we can do with it that has not yet been discovered. So I dont have any time to think about what I dont know about PropII.
"It would be nice to get an update on the status of the Prop II. Parallax was very open about the process a few months ago, but there have been no updates for a while" - and I'm afraid I can't say much more right now. We are still moving forward working with the synthesis guys and doing a little floor planning to facilitate better timing. The original spec was for the system clock to run at 160MHz .... at the last EXPO this figure was reduced to 120MHz because of unobtainable timing requirements. After talking to Chip a couple of days ago, I can now say that the the system clock speed will be greater than 160MHz... :-) ... how much greater is hard to say... worst case scenario simulations are indicating 180MHz <-- worst case
"It would be nice to get an update on the status of the Prop II. Parallax was very open about the process a few months ago, but there have been no updates for a while" - and I'm afraid I can't say much more right now. We are still moving forward working with the synthesis guys and doing a little floor planning to facilitate better timing. The original spec was for the system clock to run at 160MHz .... at the last EXPO this figure was reduced to 120MHz because of unobtainable timing requirements. After talking to Chip a couple of days ago, I can now say that the the system clock speed will be greater than 160MHz... :-) ... how much greater is hard to say... worst case scenario simulations are indicating 180MHz <-- worst case
... worst case scenario simulations are indicating 180MHz <-- worst case
If only all silicon met worst case simulations
Is this 180MHz simulation, for the opcodes, or does it include the Counters/Shifters/Serializers ?
Does this mean PWM generation to 5.5ns (or better?) edge definition, and timing Capture/measure to 5.5ns (or better?) ?
This is only 11% off 200MHz, so you might be able to do what other vendors do, and offer a 200MHz spec, with restricted
temperature and voltage corner cases ?
There must be others out there, with even more demanding time-domain problems, and the nice thing about 64 bits, is you (almost) never need worry about wrap, and can also capture/generate events some time apart, to the full timebase precision.
32 bits at 180Mhz wraps in ~24 seconds, which is not that long.
You can bet we will overclock the PropII However, because of its complexity it will be harder for us mortals to ensure it can be done safely without unknown data paths on the edge.
I need to start saving up for a trip to Parallax for the Prop II launch shin dig. Never been to the states before, this would be as good an excuse as any to get there.
Cluso,
Excellent. Look forward to meeting you there.
For a long time now I have been daydreaming about a monster Prop II launch, expo, conference, party event.
Ray: we would really need 192MHz operation for that (16*12=192) otherwise it would just be a variable number in the pll (15*12=180, 14*12=168, etc). Now, if they spec it at 180MHz I bet we can overclock to 192MHz
dr hydra
Posts: 212
Comments
Shss... PropII is only a rumour!
The ?????? chip (formerly code named Prop II) will be here when its here. Nothing we say can possibly make it go any faster, perhaps unless you have a few $Ms to throw into the pot. And then it may not meet what we want because it is rushed.
Shooo...I think I can let you into a little secret. The Prop II is going to be square.
It's been leaked that it may also be black..
-Tor
I am surprised by some of the responses I guess when you are in the know it is easy to forget what it is like on the other side of the fence.
I suspect that the number of people who are "in the know" is limited to Chip Gracey and a very small number of others who are actually doing the work.
For sure does not include me. I'm just winding you up a bit:)
We are all waiting and biting our nails like yourself.
But don't forget there is a lot of the Prop I world that is not explored yet.
I think heaters comments sums it up completely.
I am fully occupied with Prop I - there is still so much we can do with it that has not yet been discovered. So I dont have any time to think about what I dont know about PropII.
"It would be nice to get an update on the status of the Prop II. Parallax was very open about the process a few months ago, but there have been no updates for a while" - and I'm afraid I can't say much more right now. We are still moving forward working with the synthesis guys and doing a little floor planning to facilitate better timing. The original spec was for the system clock to run at 160MHz .... at the last EXPO this figure was reduced to 120MHz because of unobtainable timing requirements. After talking to Chip a couple of days ago, I can now say that the the system clock speed will be greater than 160MHz... :-) ... how much greater is hard to say... worst case scenario simulations are indicating 180MHz <-- worst case
Beau,
Thanks for the update! 180 sounds great!
Jim
Any chance you'll be in the Rocklin area between Dec. 4th and 10th?
-Phil
Thanks Beau.
Peter
Now, dare I ask.... can you work the same miracles with hub ram??? (PS I know its all about space, but you never know if you dont ask)
If only all silicon met worst case simulations
Is this 180MHz simulation, for the opcodes, or does it include the Counters/Shifters/Serializers ?
Does this mean PWM generation to 5.5ns (or better?) edge definition, and timing Capture/measure to 5.5ns (or better?) ?
This is only 11% off 200MHz, so you might be able to do what other vendors do, and offer a 200MHz spec, with restricted
temperature and voltage corner cases ?
I've often grumbled about 32 bit micros with 16 bit timers, (what WERE they thinking?!) but I see I am not alone, and notice the first 32 bit micro's now with 64(!) bit timers. Wow.
http://focus.ti.com/en/graphics/mcu/stellaris-arm-cortex-m4-LM4F110.jpg
There must be others out there, with even more demanding time-domain problems, and the nice thing about 64 bits, is you (almost) never need worry about wrap, and can also capture/generate events some time apart, to the full timebase precision.
32 bits at 180Mhz wraps in ~24 seconds, which is not that long.
You can bet we will overclock the PropII
Excellent. Look forward to meeting you there.
For a long time now I have been daydreaming about a monster Prop II launch, expo, conference, party event.