yah sure. I'll put it at the wiki page. Steve
On Mon, Sep 11, 2017 at 12:28 PM, Mike Stein <[email protected]> wrote: > Any chance of posting a schematic in pdf or png format? > > m > > ----- Original Message ----- > From: "Stephen Adolph" <[email protected]> > To: <[email protected]> > Sent: Monday, September 11, 2017 8:44 AM > Subject: Re: [M100] QUAD BOM > > >> Brian, you should be aware >> >> - the hardware has a flaw. the flops don't always power up in bank 0. >> - REX software does not work reliably with Quad >> - the quad utilities work ok though. >> >> yes 2 BAV70s >> >> >> as far as the ram goes, I would just check it to make sure it is the >> same as TC551001. you might find that ram for cheap on ebay. >> >> >> OR - redo the design to address the flop issue and with a more >> available ram chip / smaller footprint. >> I do my designs for parts I have... >> >> steve >> >> >> On Mon, Sep 11, 2017 at 12:27 AM, Brian White <[email protected]> wrote: >>> Hey Steven, I think I worked up a DigiKey cart to build 3 QUADs, the version >>> on osh park now. >>> >>> 2 things I'm not sure about: >>> >>> The text on oshpark says it needs a BAV70, but it looks like there are >>> footprints for 2 BAV70's on that version of the board. I assume I should I >>> install 2? >>> >>> The exact referenced memory chip is not available, but I think I narrowed it >>> down to about 20 possibles, and picked one for the cart based on >>> availability as much as anything else. Does this part look right? I tried to >>> match, parallel, 18.4mm, 5v, forward pinout, >>> >>> The cart with the questionable memory chip is here: >>> http://www.digikey.com/short/qcm427 >>> >>> Ignore the pins. The price is ridiculous, but I just wanted to make a cart >>> that had everything for reference and completeness, and I can't find any >>> pins on DigiKey that aren't stupid like that. >>> >>> -- >>> bkw
