Well I have some good & some bad news...
Good news first.
I did the schematic and the PCB layout for the base (programmer) board [attached]. This board allows the user to read and write ROM & FLASH SIMMS including the ones that I'm making; and program the FLASH SIMMs and the new ones that I'm making. It also allows the programming of the CPLD and micro on the SIMM [through the second SIMM socket with the SIMM inserted upside down]. This was an easier work than the SIMM so I was able to complete it with 8 mil track and space. That means it will be relatively inexpensive to make (compared to the SIMM) but will be more expensive than the SIMM because of the size [5.4" x 3.8" cf 4.25" x 1.1"]. I will also save some $$ by not having the bottom screen printed. Components on the bottom layer are some 100uF caps and some 10K resistor packs (and a single zero ohm link) - but there's nothing on the bottom layer that needs to be identified by the screen print.
I need to make at least one to read my ROM SIMMs to determine the format, and to develop the software for the CPLD and micro. No one else really needs one but if anyone's interested in getting one. The cost would be around USD200. Please note that although these boards can be used to (re)program the CPLD and micro, once the SIMM has the mini-USB connector attached it won't fit into the SIMM socket. So if you want one of these please give me some indication. Otherwise I'll just make a couple for my own use.
Just on that, I have 22 of the 23 ROM SIMMs that EMU produced. I don't have a copy of the Composer ROM from a proteus 2500. If anyone has such a beast and is willing to part with it, then I would be happy to pay a reasonable price for it or come to some other arrangement. It would have a sticker on it with the number AP-20 where is one of 638, 10172, 10498, or 12068 [probably the latter one]
Now the bad news.
I thought that I had some SAM7SE micros that I purcahsed earlier. However, I can't find any. So I looked online and the parts seem to be on long lead time allocation [around four months]. I will order some ASAP and might be able to get hold of some samples, but it will probably four or five months before I can make quantities for sale. :(
Oh well. we do what we can...
Good news first.
I did the schematic and the PCB layout for the base (programmer) board [attached]. This board allows the user to read and write ROM & FLASH SIMMS including the ones that I'm making; and program the FLASH SIMMs and the new ones that I'm making. It also allows the programming of the CPLD and micro on the SIMM [through the second SIMM socket with the SIMM inserted upside down]. This was an easier work than the SIMM so I was able to complete it with 8 mil track and space. That means it will be relatively inexpensive to make (compared to the SIMM) but will be more expensive than the SIMM because of the size [5.4" x 3.8" cf 4.25" x 1.1"]. I will also save some $$ by not having the bottom screen printed. Components on the bottom layer are some 100uF caps and some 10K resistor packs (and a single zero ohm link) - but there's nothing on the bottom layer that needs to be identified by the screen print.
I need to make at least one to read my ROM SIMMs to determine the format, and to develop the software for the CPLD and micro. No one else really needs one but if anyone's interested in getting one. The cost would be around USD200. Please note that although these boards can be used to (re)program the CPLD and micro, once the SIMM has the mini-USB connector attached it won't fit into the SIMM socket. So if you want one of these please give me some indication. Otherwise I'll just make a couple for my own use.
Just on that, I have 22 of the 23 ROM SIMMs that EMU produced. I don't have a copy of the Composer ROM from a proteus 2500. If anyone has such a beast and is willing to part with it, then I would be happy to pay a reasonable price for it or come to some other arrangement. It would have a sticker on it with the number AP-20 where is one of 638, 10172, 10498, or 12068 [probably the latter one]
Now the bad news.
I thought that I had some SAM7SE micros that I purcahsed earlier. However, I can't find any. So I looked online and the parts seem to be on long lead time allocation [around four months]. I will order some ASAP and might be able to get hold of some samples, but it will probably four or five months before I can make quantities for sale. :(
Oh well. we do what we can...