Testing continuity at 1.8 volts may also be a disaster as that is above the reverse polarity limits of the silicon. So I am thinking now of 0.1 volt at less than 10 ma is appropriate.
Anyway, I am pondering exactly how about verifying anything more than solder bridges. There rest may be rather futile.
The lists of Propeller programing languages do not clearly reflect actively supported languages, they are more historic than actual current status. That would require much more maintenance to keep current. It is a bit of a nuisance for new users to have to sort out for themselves what is currently useful from what once was.
Hey! Just because your GA chip has only 1 language and the Propeller has 247 is not a reason to get all negative!
@Humanoido
It is not about the GA144 versus the Propeller. At this point, I am looking more forward to Forth on the Propeller 2 and the GA144 seems to be a rather difficult and expensive distraction. If I were not so curious about its inner workings of the GA144 and Chuck Moore's mind, I would have stopped for economic reasons long ago.
It is about good information for new users of the Propeller. I got into Forth on the Propeller and ran down all the Forth languages for the Propeller that you listed. It took quite a bit of time. But the only one's worthy of introduction to new users are TachyonForth and PropForth 5.0 (and maybe beyond).
The web is becoming awash with what once was and getting to be a very murky place for good info. Parallax doesn't have to follow that.
I see this thread ended just when loopy got his GA144 but before he turned it on. I didn't read all 8 pages of the thread, but one thing I noticed is that no one seemed to catch the fact that there is a simulator in the toolset that will let you test code without having hardware. So if you have an app you wanted to try out you could run it in the simulator without needing any hardware.
So how did the eval of the GA144 go? Was this covered in another thread?
A. The GA144 chip -- unlike the the Propeller architecture -- has limited special purpose i/o.
B. While the GA144 chip was developed by the founder of Fourth, the Propeller seems far ahead of the game as a multiple core Forth chip.... most of the 144 cores are locked into a grid where data may only be passed to the left, the right, up, or down; whereas each an every Propeller core can reach any and all i/o and all the cores can share a common dictionary in HubRAM with possible extension in SDcard.
C. The GA144 chip is not an easy DIY even with the SchmartBoard carrier. It is likely to be far easier to run with the rather expensive board that is provided by Green Arrays.
Conclusion -- the Parallax Propeller is the best available Forth platform on today's market. The fact that it has three versions of Forth available seems to demonstrate that fact quite well. 32K hub ram hits the sweet spot of just enough RAM to run a good Forth dictionary and application.
I suppose one day I might revisit the GA144. I have two chips and two SchmartBoards - one untouched and the other partially assembled. But this is one of those projects that has a very steep learning curve and feels like a quagmire to me.
I did fool around with the simulator and it confounds me. But I did begin to catch on to Chas Moores special Color Forth. The whole project is very quirky, fun for those that might like an endless puzzle rather than developing a quick and easy application.
Comments
Anyway, I am pondering exactly how about verifying anything more than solder bridges. There rest may be rather futile.
Hey! Just because your GA chip has only 1 language and the Propeller has 247 is not a reason to get all negative!
It is not about the GA144 versus the Propeller. At this point, I am looking more forward to Forth on the Propeller 2 and the GA144 seems to be a rather difficult and expensive distraction. If I were not so curious about its inner workings of the GA144 and Chuck Moore's mind, I would have stopped for economic reasons long ago.
It is about good information for new users of the Propeller. I got into Forth on the Propeller and ran down all the Forth languages for the Propeller that you listed. It took quite a bit of time. But the only one's worthy of introduction to new users are TachyonForth and PropForth 5.0 (and maybe beyond).
The web is becoming awash with what once was and getting to be a very murky place for good info. Parallax doesn't have to follow that.
So how did the eval of the GA144 go? Was this covered in another thread?
A. The GA144 chip -- unlike the the Propeller architecture -- has limited special purpose i/o.
B. While the GA144 chip was developed by the founder of Fourth, the Propeller seems far ahead of the game as a multiple core Forth chip.... most of the 144 cores are locked into a grid where data may only be passed to the left, the right, up, or down; whereas each an every Propeller core can reach any and all i/o and all the cores can share a common dictionary in HubRAM with possible extension in SDcard.
C. The GA144 chip is not an easy DIY even with the SchmartBoard carrier. It is likely to be far easier to run with the rather expensive board that is provided by Green Arrays.
Conclusion -- the Parallax Propeller is the best available Forth platform on today's market. The fact that it has three versions of Forth available seems to demonstrate that fact quite well. 32K hub ram hits the sweet spot of just enough RAM to run a good Forth dictionary and application.
I suppose one day I might revisit the GA144. I have two chips and two SchmartBoards - one untouched and the other partially assembled. But this is one of those projects that has a very steep learning curve and feels like a quagmire to me.
I did fool around with the simulator and it confounds me. But I did begin to catch on to Chas Moores special Color Forth. The whole project is very quirky, fun for those that might like an endless puzzle rather than developing a quick and easy application.
Just stumbled over your post ... very nice videos...
Thank you
Mike
http://webcast.berkeley.edu/playlist#c,d,Computer_Science,-XXv-cvA_iC9x0nmh5OZyxljQU6pUWWk