lfantoniosi / tn_vdp

Tang Nano 9K TMS 9118A VDP
BSD 3-Clause "New" or "Revised" License
127 stars 23 forks source link

Confused by choice #25

Open DirkS-71 opened 1 month ago

DirkS-71 commented 1 month ago

If I just need a drop in replacement for the v9958 on a board that has ram already, what is my choice? All the choices seem to have local ram already on the FPGA.

Thanks

lfantoniosi commented 1 month ago

You get the v3 with shrink dip64 for the socket.

The tn-vdp uses its own internal memory. There aren’t enough pins to use external memory

Luis Felipe Antoniosi

On Wed, Jan 8, 2025 at 9:48 AM DirkS-71 @.***> wrote:

If I just need a drop in replacement for the v9958 on a board that has ram already, what is my choice? All the choices seem to have local ram already on the FPGA.

Thanks

— Reply to this email directly, view it on GitHub https://github.com/lfantoniosi/tn_vdp/issues/25, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACCJWUY2DLN6I5MRED6QQQL2JVQHLAVCNFSM6AAAAABU2ORMV2VHI2DSMVQWIX3LMV43ASLTON2WKOZSG43TKOJXGYYTQNI . You are receiving this because you are subscribed to this thread.Message ID: @.***>

DirkS-71 commented 1 month ago

Ah, so it will just ignore the external memory 👍