DPI Adapter prototype

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tinkerBOY
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DPI Adapter prototype

Post by tinkerBOY » Tue Mar 27, 2018 6:15 am

I finally had time to solder the parts and DPI adapter prototype. It’s working fine and the DPI screen looks way way better than composite.

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More pictures at DPI Adapter + Game Boy Controller = AIO
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VeteranGamer
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Re: DPI Adapter prototype

Post by VeteranGamer » Tue Mar 27, 2018 6:50 am

great job....
looks good....

i could be wrong.....
i see one negative (i could be missing something).....

you don't have access to any of the test points on the rear, more importantly for the USB connection....
(i appreciate you still have access to the port)



.

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tinkerBOY
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Re: DPI Adapter prototype

Post by tinkerBOY » Tue Mar 27, 2018 7:07 am

VeteranGamer wrote:
Tue Mar 27, 2018 6:50 am
great job....
looks good....

i could be wrong.....
i see one negative (i could be missing something).....

you don't have access to any of the test points on the rear, more importantly for the USB connection....
(i appreciate you still have access to the port)



.
Yeah I just made this board to test the DPI interface but I will absolutely be including a way to access the USB data pads for the final board.
New! tinkerBOY PowerSwitch v1.0 with Safe Shutdown
Game Boy Zero Controllers available @ tinkerBOY.xyz * Support
tinkerBOY Controller v3.0 - built-in usb controller, usb audio, and usb hub
tinkerBOY Controller v2.0 - GPIO buttons and builtin PWM Audio and Amplifier
tinkerBOY Controller v1.1 - simple pcb button
* DPI Adapter - better display for GBZ
* keyboard converters - IBM XT/AT Soarer's Converter | ADB to USB Converter

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DieselDummy
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Re: DPI Adapter prototype

Post by DieselDummy » Tue Mar 27, 2018 7:24 am

Looks like the tinkerboy all in one is right around the corner

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Re: DPI Adapter prototype

Post by sgtgrumbles » Tue Mar 27, 2018 8:07 pm

Nice work! This will take many custom builds to the next level.

If possible, please support using a wheel pot to adjust LCD brightness ala OG DMG :)

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Re: DPI Adapter prototype

Post by superjoltman » Thu Mar 29, 2018 3:27 pm

So I've been working on your first setup for 24-bit with just the first adapter but it takes the GPIO pins that are used for sound that I would normally wire up to my Helder board. I notice in this one you have a pi zero instead of the 3, I know you said this is just for testing but in my scenario would you use a usb sound card to get around this? Been reading about re-purposing some of the the GPIO pins that look like they have Alt functions that do PW0 and PW1 but haven't messed with it yet.

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tinkerBOY
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Re: DPI Adapter prototype

Post by tinkerBOY » Thu Mar 29, 2018 5:13 pm

superjoltman wrote:
Thu Mar 29, 2018 3:27 pm
So I've been working on your first setup for 24-bit with just the first adapter but it takes the GPIO pins that are used for sound that I would normally wire up to my Helder board. I notice in this one you have a pi zero instead of the 3, I know you said this is just for testing but in my scenario would you use a usb sound card to get around this? Been reading about re-purposing some of the the GPIO pins that look like they have Alt functions that do PW0 and PW1 but haven't messed with it yet.
I designed the adapter so you can still use pwm sound. It works on both pi zero and 3. On the Raspberrypi.org DPI documentation there are two ways to get 18-bit and one them doesn't use gpio18 and gpio19 which can be used as pwm0 and pwm1. You just have to edit the 24bit overlay and recompile.
New! tinkerBOY PowerSwitch v1.0 with Safe Shutdown
Game Boy Zero Controllers available @ tinkerBOY.xyz * Support
tinkerBOY Controller v3.0 - built-in usb controller, usb audio, and usb hub
tinkerBOY Controller v2.0 - GPIO buttons and builtin PWM Audio and Amplifier
tinkerBOY Controller v1.1 - simple pcb button
* DPI Adapter - better display for GBZ
* keyboard converters - IBM XT/AT Soarer's Converter | ADB to USB Converter

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superjoltman
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Re: DPI Adapter prototype

Post by superjoltman » Thu Mar 29, 2018 5:55 pm

Geeze, completely missed that for the 18 bit. Thanks!!

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Re: DPI Adapter prototype

Post by sgtgrumbles » Thu Mar 29, 2018 5:56 pm

tinkerBOY wrote:
Thu Mar 29, 2018 5:13 pm
superjoltman wrote:
Thu Mar 29, 2018 3:27 pm
So I've been working on your first setup for 24-bit with just the first adapter but it takes the GPIO pins that are used for sound that I would normally wire up to my Helder board. I notice in this one you have a pi zero instead of the 3, I know you said this is just for testing but in my scenario would you use a usb sound card to get around this? Been reading about re-purposing some of the the GPIO pins that look like they have Alt functions that do PW0 and PW1 but haven't messed with it yet.
I designed the adapter so you can still use pwm sound. It works on both pi zero and 3. On the Raspberrypi.org DPI documentation there are two ways to get 18-bit and one them doesn't use gpio18 and gpio19 which can be used as pwm0 and pwm1. You just have to edit the 24bit overlay and recompile.
FYI - I2C from the camera for ADC sound would be preferable to PWM or possibly even USB (to disable USB all together and save power)

for Pi Zero and Zero W dtoverlay=i2c0-bcm2708,pins_28_29
for Pi 3 dtoverlay=i2c0-bcm2708,pins_44_45

Although, I don't know for a fact that anyone has demonstrated this working... just rumors.

Zhuraj
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Re: DPI Adapter prototype

Post by Zhuraj » Mon Dec 24, 2018 6:35 am

Hi. I got my Adapter today and i Wonder if it's possible to use my safe shutdown board with it?
I have this one :https://sudomod.com/forum/viewtopic.php?f=38&t=2260

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