Please give some suggestions for my new MiSTer Daughter Board

[andrezheng]

Today, I successfully powered up the newly designed 5CSEBA6U23 core board. And the new core board's top and bottom images are attached. Two AS4C32M16SBs, 1GB DDR3 memory, RGMII ETH PHY and 85 FPGA GPIOs from PL side....

Now I'm thinking of design a daughter board for this core board. Preliminary, below interfaces will be added:
(1)ADV7513 HDMI display. Takes 35 FPGA GPIOs
(2)4-port USB hub for HPS
(3)RJ45 for HPS Ethernet communication
(4)Micro-SD card for HPS

So the core board still have 50 FPGA IOs left for other interfaces. My preference is not to have the VGA interface for CRT monitor since this kind of monitor is really hard to find in the market..... Please Mister fans here kindly give some suggestions for the remaining 50 FPGA IOs, Thanks.

[NegSol]

Look like a new board to me. Any reason why you want to call it MiSTer? I guess a little more background info would help.

[Slein]

Please put only the basic needed stuff on the first pcb, the boards are easily stackable with this layout and all other stuff can be put on addon pcbs.

So only sdcard, hdmi, network, usb, audio (i2s, toslink, headers or 3.5mm) and maybe a audio in channel for tape. Spare as many pins as possible for debugging output and things like snac or a video dac.

PS: love the qmtech boards, no nonsense and a really useful pinout

[aberu]

What happened to the top of your SoC?

sEcs5hx8oP.png (781.7 KiB) Viewed 2205 times

As for feedback:

Main priorities for me personally would be the USER IO port (which is analog pins direct to FPGA I believe, and either digital or analog audio pins for a combo Mini-TOSLINK+3.5mm jack Optical+DAC.