Reading real cartridges (Update - IT LIVES! - video)

[abrugsch]

it's done!

gbslurp-pcb2.PNG (116.59 KiB) Viewed 10071 times

alt-pcb-back.jpg (126.91 KiB) Viewed 10071 times

alt-pcb.jpg (161.14 KiB) Viewed 10071 times

[Camble]

Looks nice and compact!

[abrugsch]

Looks nice and compact!

It's slightly smaller than a PiZero. And it only needs to be that big because of all the status LED's and resistors for debugging (27 pairs - 8 data, 16 address and 3 ancillary) and TBH, I should probably stick the resistors on the back, but I'm not re-working the board AGAIN
When it's on the final board it won't need any of those so won't take up any space hardly at all...

[abrugsch]

I'm really not looking forward to hand soldering 27 pairs of 0805 LED's and resistors though...

[Camble]

If you have a 0805_M footprint, they're a lot easier to hand solder.

Are you using Altium?

[abrugsch]

I'm using KiCAD
I did see a hand soldering 0805 footprint but it was huge... I might do the resistors on the back and swap their footprints over anyway. I'm not short of space on the back

[Camble]

Ach it's not that much You'll get into a rhythm

[Eccho]

I also want to have a TFT in DPI mode
[...] takes I2C bus pins away
[...] use SPI as the MCP23017
[...] I2C ends up being a bottleneck
[...] even in RGB565 mode.

Ah-han.

[abrugsch]

I also want to have a TFT in DPI mode
[...] takes I2C bus pins away
[...] use SPI as the MCP23017
[...] I2C ends up being a bottleneck
[...] even in RGB565 mode.

Ah-han.

Sorry I don't follow...

[Eccho]

Just making fun that I didn't understand A WORD of what you were saying
I usually feel that way in this forum, but here it needed to be pointed out. It looks amazing what you guys are prototyping.