Commander X16 - Second Prototype PCBs are Here!

Michael Steil · Post by **Michael Steil** » Tue Jul 07, 2020 9:14 pm

The Emulator and the ROM have been adapted for the new board. You can check out branches x16_board_r2 in the source of the two projects. The official reference manual has also been updated.

In short, these are the major breaking changes:

RAM and ROM banking is done through magic zero page locations 0 and 1. Up to 512 KB of ROM are now supported.

VIA#1 is now at $9F00, VIA#2 at $9F10

YM is at $9F40

All I/O (PS/2, Controllers, Serial) has been moved to VIA#1 PA and PB.

Etosha69 · Post by **Etosha69** » Wed Jul 08, 2020 7:05 pm

It's great to see its becoming reality! ? ?

BruceMcF · Post by **BruceMcF** » Thu Jul 09, 2020 5:45 am

In Korean historical dramas, the Emperor wears the purple Dragon Robe, and the Crown Prince wears the red Dragon robe.

Any chance the CX16c board might be red?

Perifractic · Post by **Perifractic** » Thu Jul 09, 2020 7:33 am

In Korean historical dramas, the Emperor wears the purple Dragon Robe, and the Crown Prince wears the red Dragon robe.
Any chance the CX16c board might be red?

You red my mind.

peapod · Post by **peapod** » Thu Jul 16, 2020 5:00 pm

On 7/7/2020 at 6:49 PM, AndyMt said:

Any ideas what kind of power supply will be needed? Atx I assume, but how much power output will be required?

I think about designing my own C128 style case and a bulky 300W Atx PS won't fit in there.

Yes - I know the X16P and C will be delivered in a case... I'll use that for something else.

you could always use a Pico-PSU in lieu of the standard ATX/SFX form factors, and have the 12v brick as an external unit a'la (G)olden days.

KnightFire · Post by **KnightFire** » Fri Jul 17, 2020 12:35 am

Oh, I was kind of expecting to see a card edge connector socket hanging off the end of the User Port cable. ? Perhaps on a plate poking out of one of the extra peripheral slots.

BruceMcF · Post by **BruceMcF** » Fri Jul 17, 2020 10:58 am

10 hours ago, KnightFire said:

Oh, I was kind of expecting to see a card edge connector socket hanging off the end of the User Port cable. ? Perhaps on a plate poking out of one of the extra peripheral slots.

The block header doesn't know what is on the other end of the ribbon cable.

Could even blow people's mind and put a C64 user port CONNECTOR on the plate and they plug IN a card edge {*mind blown*}

The rock · Post by **The rock** » Mon Jul 20, 2020 6:29 pm

are they Playstation controller ports on the commander x16?

its nice to see the motherboard and the case design

troj · Post by **troj** » Mon Jul 20, 2020 7:00 pm

30 minutes ago, The rock said:

are they Playstation controller ports on the commander x16?

I'm pretty sure those are SNES ports.

StephenHorn · Post by **StephenHorn** » Mon Jul 20, 2020 7:37 pm

34 minutes ago, troj said:

I'm pretty sure those are SNES ports.

They are SNES ports. The reason for SNES controllers is because they require fewer wires, but allow for 12 buttons (technically more, but you'd have to write your own driver to deal with that).