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View Full Version : Starting a clean slate soon, and Dendou Oni is not ousted...



Dr. Mario
10-17-2011, 04:17 PM
I have decided to be myself for a bit, just to get my mind in one place, so I may start cleanly on the much-anticipated project, Dendou Oni. I may have to delete my other threads, so I can start fresh on this project, because for some reason, the Octo-core CPU cores (COGs) still appeals to me - also a reminder that I should build a supercomputer. I also had to get better PC hardware, like having the right mouse for circuit board CAD usage (ball mouse is out, since they jump all the time).

Now, I am trying to focus on it a bit more carefully. And, I apologize for discouraging you guys.

Humanoido
10-18-2011, 01:34 PM
I have decided to be myself for a bit, just to get my mind in one place, so I may start cleanly on the much-anticipated project, Dendou Oni. I may have to delete my other threads, so I can start fresh on this project, because for some reason, the Octo-core CPU cores (COGs) still appeals to me - also a reminder that I should build a supercomputer. I also had to get better PC hardware, like having the right mouse for circuit board CAD usage (ball mouse is out, since they jump all the time). Now, I am trying to focus on it a bit more carefully. And, I apologize for discouraging you guys.What's up with that? I though you were working on a supercomputer. What direction are you going? It would be inappropriate to delete the thread. It contains a lot of good information.

For a good mouse, try a wired or Apple wireless optical mouse with a fine meshed fabric quality mouse pad. It should give the smooth movements for CAD drawings. Also use settings to fine tune it. Load in a high quality brand name driver for a high quality brand name mouse. I'm currently using a Logitech on the laptops and a wireless Apple mouse on the desktop computer. I purchased a mid range priced Logitech and the left and right microswitches have too light of a touch, i.e. half the time they are accidentally pressed. It's best to try before you buy.

Dr. Mario
10-18-2011, 04:16 PM
It's difficult to explain. Whenever I discuss some kind of plan, my threads fell apart instantly, so I decided it will be better to back off for a while, so it won't get messy. All of my threads are officially dead now, so it's best to start a clean slate and do the supercomputer. I had to be off my projects for a while for few reason. I won't blame you for asking this question, I knew it would be the first thing I see, so I had to explain.

Duane Degn
10-18-2011, 04:48 PM
Please, Dr. Mario. Don't delete your old threads. You would only be able to delete your own posts which would ruin the context of the other posts. It would be very disrespectful to the people who tried to help and very bad manners.

It's fine to let the old thread die. Just don't post to them.

I look forward to seeing what your new project is.

Duane

Dr. Mario
10-18-2011, 06:38 PM
Duane, good point. Actually, I have been considering deleting my old threads for few reason, but now that you changed my mind.

Now, to restart my project (I still have archives of my Dendou Oni project - may try different supercomputing arrangements), I may try exploring the usage of Microchip PIC32MX microcontroller or X-something single-core transputer as an operator to control eight P8X32A to fill their thread request - something like VLIW processor on steroids, only on macroscopic scale. With the PCB CAD, I finally got to ditch my old ball mouse and got Miocrosoft BlueTrack mouse (as it was cheap - $25 at Staples) and I will be doing a slightly different RAM modeling, moving SDRAM to the operator instead, keeping the P8X32A from slowing down - wanting all COGs free to do away with flat memory modeling.

Also, I had high hope for Prop II as it might be a superscalar processor, doing away with the programs quickly, and crunching numbers faster. No Spin? I am fine with it as there is bound to have Spin interpreter update which could occur more often, so no point in burning it onto firmware ROM. Unfortunately, as I knew there's bound to be some delay (like with AMD FX Zambezi - it have been having infancy mortality problems due to some issues with 32nm node process - so little room for mistakes, no wonder the yields have been so low!) - I was correct in a way...

Dr. Mario
10-19-2011, 12:39 AM
So, if you guys dislike "X" transputer, you think I am cool with going with 80MHz PIC32 for IO bus / data packet management?

ctwardell
10-19-2011, 02:18 AM
So, if you guys dislike "X" transputer, you think I am cool with going with 80MHz PIC32 for IO bus / data packet management?

Dr. Mario,

I don't see any issues with using the "X" chip or whatever chip suits your needs, the usual issue is when some people go on and on about the "X" chip in a "X" vs. Prop manner.
So if your project uses "X" or PIC or AVR or whatever works best in conjunction with the Propellers, I think the people here would be interested in the project.

C.W.

Cluso99
10-19-2011, 02:19 AM
Dr Mario: It is not that we dislike any other micro.

I (and I think others) just don't think it appropriate to denegrade the propeller against other micros on these threads. All micros have their place.

If another micro forms a function together with the propeller chip, IMHO that is a different matter, provided the "other" chip is not the focus of the thread to the detriment of the propeller.

For instance, jazzed and I both have ATTiny projects that are a "peripheral" to the propeller. IMHO there is nothing wrong with that discussion, provided we do not go overboard in promoting the ATTiny on this forum. So, our use is just like using any 74xxXXX or I2C chip etc with the propeller.

Dr. Mario
10-19-2011, 08:01 PM
Thank for your replies. Yea, it seemed important that I may have to use the transputer for few reasons, that's to break few threads down before being distributed to other microcontrollers, P8X32A chips in order to keep it consistent and fast as possible. So, eight or 16 P8X32A would be possible just with one XS1 chip under explicit host control. (I had to use "X" instead of full four litter word, excuse me, "XMOS" as it would anger few peoples for obvious reasons, so as promised I had to shorten it.)

Also, after digging down on the dirty details of the original transputer itself (not XS1, but before that), I decided to simplify the hardware requirement, moving the SDRAM onto the operator CPU so I don't bog any P8X32A chips down doing compulsory obsessive jobs doing otherwise complicated timing and step-by-step RAM transaction - that will be for Prop II later as pin numbers do matter now, as I want to be able to shoot up to 1MB/s (or if I can do away with complicated Manchester-like coding, 20MB/s) through those P8X32A, to be able to cut computational time a bit - won't be impressive but it's a prototype project, though.

Dr. Mario
10-21-2011, 02:10 AM
After looking around, for a slightly powerful host CPU (I am willing to do complicated BGA soldering) - I found few PowerPC CPUs, costing from $20 to 40 on Mouser. Hmm, pretty cheap! But there is one more nice thing about it: Some of them do have built-in PCIe bus, allowing us to throw in the video cards that we don't need anymore - I have GeForce 7300GS that I might slap on the seed computer board, just so I can see what's going on.

I am thinking about going to Optical bus or just use good old Ethernet copper interconnection through root switch, finally linking to a CPU. I might do FE (Fast Ethernet) link as it could be much cheaper to do so to be able to zip the bits throughout the systems.