Minimig BOM List for Digikey

[whiteb]

@Plaz:

What Pic programmer have you got ?

[Plaz]

@freqmax

True, but some may not be interested in development. For any who would get preprogrammed PIC's they'd have to know they're stuck with what they have. To get further updates, they'd have to get/learn to use a programmer or hassle with more costs and shipping to get future updates.

Plaz

[Plaz]

It's a willem I bought a couple years ago when my old DOS based one couldn't cover all the chip I wanted to use. It looks like this.....

Willem "Enhanced"

By using the WinPic800 software, it's supposed to support 18F PICs. Get that software here... http://www.willem.org/ZIP/WinPic800359.zip

I've not had a chance the past couple days to try it, and tonight I'll be out with kids for tricks/treats. I'll report back when I know more.

Plaz

[ShawnDude]

So thats about $110 plus the board and labor.

[fuguben]

Thanks for putting that list together Plaz. I've put it into Digikey and the following items are out of stock:

122-1519-ND IC SPARTAN-3 FPGA 400K 208-PQFP
P833-ND 100UF 16V MINI ALUM ELECT (KA)
P8008S-ND 6MM LIGHT TOUCH SWITCH 160GF

The SD card connector came up as discontinued.
361-1025-1-ND CONN MULTIMEDIA CARD PUSHPULL

Does anyone know of anywhere to get the spartan? I've trawled the web earlier and came up with nothing, most places require minimum order sizes. Nuhorizons are also out of stock on the spartan but have a slightly shorter lead time (4 weeks). Either way, digikey or nuhorizons, its still going to be some time in December and I wanted to get this project off the ground before then  :-)

Its really cool to see the new amiga hardware being created by the users, very exciting times indeed! Thanks Dennis and everyone else involved!

[whiteb]

Plaz wrote:
@freqmax

True, but some may not be interested in development. For any who would get preprogrammed PIC's they'd have to know they're stuck with what they have. To get further updates, they'd have to get/learn to use a programmer or hassle with more costs and shipping to get future updates.

Plaz

Not really, if you are getting the chip Pre-Programmed, then get a bootloader stuck on the chip.  No need for "Reflashing" with a prommer.  All you do, is catch the Boot Loader's Listen window (usually the first 1 second after power on), and upload new firmware. (For Pic's that support *SELF* programming).  That is what Wizard66 offers with his Pic's, Bootloader or Firmware.  ANY sane person would go for Bootloader.

[freqmax]

Bootloader and firmware won't interfere with eachother?
Or eat up memory that is needed for other stuff..?

[whiteb]

freqmax wrote:
Bootloader and firmware won't interfere with eachother?
Or eat up memory that is needed for other stuff..?

Why would they, The PROM has 32K of storage, The Firmware is about 13K and the Loader is...... 100 Words (Bytes ?) long.

Everything it needs is on the Prom.  The Firmware or Bootloader takes *NO* system resources from the Amiga Chipset.

The Firmware's ONLY job, is to flash the FPGA at power up, and to control the MMC.

[Plaz]

Been down and out with a bug for the past few days... time to catch up.

@fuguben

Thanks for double checking. We knew the Spartans were on back order, but the other parts showed  "in stock" when I last looked. I should be able to sub the caps and buttons, but the multimedia card was the last one digikey showed being carried. If we find another source for the Spartan maybe they'll carry a mm-card connector too? Any one know if there's a competitor chip that is 100% compatible with the Spartan? I've started looking, but haven't found one yet.

Plaz

[Plaz]

@whiteb

ANY sane person would go for Bootloader.

I'm rarely accused of being sane :-), but it sounds like a good idea to me if it works. (and it sounds like it does)

Plaz

[amigadave]

whiteb wrote:

Plaz wrote:
@freqmax

True, but some may not be interested in development. For any who would get preprogrammed PIC's they'd have to know they're stuck with what they have. To get further updates, they'd have to get/learn to use a programmer or hassle with more costs and shipping to get future updates.

Plaz

Not really, if you are getting the chip Pre-Programmed, then get a bootloader stuck on the chip.  No need for "Reflashing" with a prommer.  All you do, is catch the Boot Loader's Listen window (usually the first 1 second after power on), and upload new firmware. (For Pic's that support *SELF* programming).  That is what Wizard66 offers with his Pic's, Bootloader or Firmware.  ANY sane person would go for Bootloader.

I asked Wizard66 about the two choices offered with his preprogrammed PICs and he replied that the two options are no longer needed, but eBay does not allow editing the auction text once it has been started.  He did not state anything further, so I don't know what I am getting, bootloader, or no bootloader?

I will ask for more clarification and post his reply, unless he sees this post and answers it here before I get an answer to a private email.

[Plaz]

BTW, has any one checked into using the Spartan 3E? It comes in the same pin package as the Spartan 3 but has more I/O and 500K gates.  If it's functionally compatible otherwise, we might be able to use a 3E instead. Digikey says they have those in stock. I'll be reading some datasheets about it when I get time this weekend.

Plaz

[whiteb]

More I/O's means more pins, and the pinout will be different

[little]

whiteb wrote:
More I/O's means more pins, and the (XC3S500E) pinout will be different

This has beed discussed before and deemed feasible by freeqmax.

[freqmax]

You "might" find this interesting: :-D
http://www.opencircuits.com/Xilinx_XC3S400_and_XC3S500E_pin_comparison

A reroute will be neccessary, updated core. Other than that it should be like simple chip swap.

[Plaz]

More I/O's means more pins, and the pinout will be different

The both have 208 pin packages so the solder pads match. It depends on how differnt the pin outs are and IF they are otherwise funtionally compatible.

Plaz