Agreed... Are you expecting me to verify that part? I'll assume you take ownership of any hack. I'm having a hard enough time with the parts I think I am getting....
On Monday, June 29, 2020, Brian K. White <[email protected]> wrote: > Nobody needs any of this stuff. I'm 50 and have had a great > sysadmin/developer job for 20 years, and have $26 to burn, that's pretty > much it. ;) > > -- > bkw > > > On 6/29/20 9:43 PM, Stephen Adolph wrote: > >> Perfectly suitable hack, yes. >> I would need to build it to debug it so it needs a ram on my end. >> >> To be honest I have been struggling with why 4MB is needed. A reasonable >> utility could easily push and pull files from LaddieAlpha as a remote drive. >> >> To be CP/M, you must have the local block oriented disk but 2MB should be >> sufficient. >> >> Anyhow, onwards. >> >> On Monday, June 29, 2020, Brian K. White <[email protected] <mailto: >> [email protected]>> wrote: >> >> >> $56 for a single >> https://www.digikey.com/product-detail/en/cypress-semiconduc >> tor-corp/CY62177EV30LL-55ZXI/428-3278-ND/2188331 >> <https://www.digikey.com/product-detail/en/cypress-semicondu >> ctor-corp/CY62177EV30LL-55ZXI/428-3278-ND/2188331> >> >> This looks compatible for $26 for a single >> https://www.digikey.com/product-detail/en/renesas-electronic >> s-america/RMLV3216AGSA-5S2-AA0/RMLV3216AGSA-5S2-AA0-ND/9650085 >> <https://www.digikey.com/product-detail/en/renesas-electroni >> cs-america/RMLV3216AGSA-5S2-AA0/RMLV3216AGSA-5S2-AA0-ND/9650085> >> >> $32 at Mouser >> https://www.mouser.com/Semiconductors/Memory-ICs/SRAM/_/N- >> 4bzpt?P=1z0w8ge >> <https://www.mouser.com/Semiconductors/Memory-ICs/SRAM/_/N- >> 4bzpt?P=1z0w8ge> >> >> It even seems to have a lower standby current. The Cypress data >> sheet says 3uA and the Renesas says 0.6uA >> >> If I buy one of these myself and solder it, will that be enough >> other than re-programming? >> >> $26 is a lot, and I wouldn't expect you to buy 100 of them for $2400 >> but, if I want it, and assuming a perfect solder job, is there >> anything else besides a reflash required to make it work? >> >> Obviously, it's a given that all concept of warranty and liability >> goes out the window instantly. >> >> -- bkw >> >> >> On 6/29/20 7:38 PM, Stephen Adolph wrote: >> >> Well, I have built and tested everything but I am sad to report >> that I am the victim of counterfeit components. >> All the 4MB SRAMs that I bought are actually 2MB SRAMs! >> I've complained to the seller, and we'll see what they say about >> their "certified" parts. >> >> 4 MB SRAMs are hard to find at a reasonable price. I ordered the >> same product twice from the same seller. The first time I paid >> 2x what I paid the second time. I guess that's the hint right >> there. >> >> What does this mean? It means that everyone on this build that >> wanted 4MB (basically everyone) will have to settle for 2MB. >> >> Also, If I can't find 4MB parts for a reasonable cost, I may not >> be able to offer that version again. >> >> For the curious, here is what Digikey wants for the parts I spec'd >> >> https://www.digikey.ca/en/products/detail/cypress-semiconduc >> tor-corp/CY62177EV30LL-55ZXIT/2184405 >> <https://www.digikey.ca/en/products/detail/cypress-semicondu >> ctor-corp/CY62177EV30LL-55ZXIT/2184405> >> >> >> Steve >> >> On Mon, Jun 29, 2020 at 11:19 AM r cs <[email protected] >> <mailto:[email protected]> <mailto:[email protected] >> <mailto:[email protected]>>> wrote: >> >> Thank you kindly! I'm enjoying daydreaming about using >> them -- so >> enjoy summer first! >> >> I appreciate your efforts, and I hope you and yours are well. >> >> Take care! >> rcs >> >> On Mon, Jun 29, 2020 at 8:04 AM Stephen Adolph >> <[email protected] <mailto:[email protected]> >> <mailto:[email protected] >> <mailto:[email protected]>>> wrote: >> >> For those who have reached out to order REXCPM- >> >> I'm sorry that they are not done yet! But the good >> news is that >> all the hardware is now built - 25 units. >> Next steps are to program them, debug/test, then >> package and ship. >> >> Thanks for your patience; it is summer time here and >> there are >> lots of time demands ;). >> >> cheers >> Steve >> >> >> >> -- /Níl aon tinteán mar do thinteán féin. /[Irish Gaelic] >> (There is no fireside like your own fireside.) >> >> >> >> >> -- bkw >> >> > > -- > bkw >
