[no subject]

Regards,

Max

Sent from my iPad

On 01/09/2012, at 6:47 AM, Douglas Goodall <douglas...@mac.com> wrote:

> Friends,
>=20
> The video output of the TMS9918 is functioning today. The only obstacle n=
ow
> between me and great graphics is learning the chip. I put a PDF of the ch=
ip's
> programming manual in my journal on the wiki.
>=20
> I am using a vintage Apple ][ monochrome display and it looks properly vi=
ntage.
>=20
> I am continuing to be delighted by the efforts made on the design of the =
2312
> motherboard, as many things are working right out of the gate. I am still=
 having
> trouble with the SD support. Now I am using SanDisk chips and still havin=
g=20
> trouble so next thing is to obtain an SD extender widget so I can verify =
the signal=20
> integrity between the 3M socket and the board.
>=20
> The PPIDE is rock solid and the editing and build processes=20
>=20
> I bought two variable resistors for RV1 and RV2, but they were slightly t=
oo large to=20
> sit in their pads next to each other. Make sure to buy small footprint co=
mponents for
> these.
>=20
> I have two 512KB memory chips installed, so I changed the RAMSIZE configu=
ration
> variable to 1024 instead of the default 512.
>=20
> I am having big fun now :-)
>=20
> Douglas
>=20
>=20
> --=20
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>=20