MiSTer FPGA Forum

The official RTC board has no VCC pin. But you can extract from the connector by soldering a wire. The 4 wires you need are: VCC, GND, SDA and SCL

Does this help?

working


thank you guys!

lui sito wrote: ↑Fri May 14, 2021 9:31 pm working

Great
If you create Pictures make them available please.

Update
The i2c2oled Script got an I2C Device ID detection.
If the OLED-Device is not found at the given ID the Script ends with Exit Code 1.

Do you "need" a RTC board to do this? Could it not come straight from the pins on the Nano?

RascalUK wrote: ↑Sun May 16, 2021 12:54 pm Do you "need" a RTC board to do this? Could it not come straight from the pins on the Nano?

If you find an matching connector for the Nano Board you can use it directly for your i2c connection.
No need for an RTC Board.

Update

The i2c2oled Script got the new Variable... Set it as you like/need.

I share this board design on Eagle. Also with gerbers available. The BOM is:
-2x7 female 2.0mm header
-1x4 female 2.54mm header
-2 resistors 4K7 0603

It's like my RTC board but without the RTC components.

antoniovillena wrote: ↑Mon May 17, 2021 1:41 pm I share this board design on Eagle. Also with gerbers available. The BOM is:
-2x7 female 2.0mm header
-1x4 female 2.54mm header
-2 resistors 4K7 0603

It's like my RTC board but without the RTC components.

0603 Could you make it in 0805 ? It's more eyes friendly

Anyway, many many thanks Antonio

Hmm... Any discussion with Sorge to bring this upstream eventually ? -- would apply too to the buzzer used to mimic the Amiga floppy drive sound, which Antonio implemented too. I love it, it adds so much to the experience -- at least if you grew up with those ! I'm even frustrated when games load too quickly

0603 is for the hardcore

venice wrote: ↑Mon May 17, 2021 2:03 pm

antoniovillena wrote: ↑Mon May 17, 2021 1:41 pm I share this board design on Eagle. Also with gerbers available. The BOM is:
-2x7 female 2.0mm header
-1x4 female 2.54mm header
-2 resistors 4K7 0603

It's like my RTC board but without the RTC components.

0603 Could you make it in 0805 ? It's more eyes friendly

Anyway, many many thanks Antonio

I never use 0805 resistors. And 0805 can be difficult to other people who prefer through hole resistors. Design files are available so anyone can modify them.

antoniovillena wrote: ↑Mon May 17, 2021 1:41 pm I share this board design on Eagle. Also with gerbers available. The BOM is:
-2x7 female 2.0mm header
-1x4 female 2.54mm header
-2 resistors 4K7 0603

It's like my RTC board but without the RTC components.

Many thanks, Antonio. We highly appreciate this! (even if I'm not going to use i2c2oled as I'm working with the really big guns Venice knows what I mean)

RascalUK wrote: ↑Mon May 17, 2021 2:41 pm 0603 is for the hardcore

Uooh! Some of us are at age of 50+ and are having eyes like a mole, so enjoying hardcore on screen is much easyier than 0605 at this stage
Our standard working outfit: https://bladerunner.fandom.com/wiki/Han ... e=Chew.jpg

49 today mate. I'm in trouble next year!

I was asked in the tty2oled thread about "tip-jar or anything else like that I can contribuite".

Jump to viewtopic.php?p=26148#p26148 to read my answer

RascalUK wrote: ↑Mon May 17, 2021 4:09 pm 49 today mate. I'm in trouble next year!

No Trouble

RascalUK wrote: ↑Mon May 17, 2021 4:09 pm 49 today mate. I'm in trouble next year!

Is it your birthday today? Then happy birthday, pal - and welcome to "No country for old men"!
If it isn't: Ha-Ha! https://www.youtube.com/watch?v=0O1H0jcyNsk You're next!

The tty2oled Init and Daemon Script needs to be reinstalled after the MiSTer's Linux Update!

//Edit
I am looking for an more persistent setup.

Hi i2c2oled Users.
I updated the scripts and locations of the i2c2oled related files on the MiSTer to make it more MiSTer Update persistent.
All scripts and the "pix" folder are now located at "/media/fat/i2c2oled/".
See https://github.com/venice1200/MiSTer_i2 ... /README.md for more details.

Run once from cli or via ssh to prepare the MiSTer Autostart System for the i2c2oled Autostart Script.

The only requirement is an MiSTer Version >=2021-08-31.

Stay Healthy

I'm loving the idea of this, and thinking of implementing it myself, but I have to ask: there's an SPI connection there, would it be theoretically possible to add an SPI screen (thinking this: https://www.adafruit.com/product/358 or this: https://www.amazon.co.uk/1-8-128x160-Co ... B077K1D5VR) and have a colour logo displayed per core?

Another forum user has tried to use the SPI Interface and told me to inform me if he get it working.
No answer until now
Theoretically is should be possible but I am not sure if you get it working using bash.

Hello friends, I bought this "i2coled" but the name on pins 1 to 4 is different, what is the correct order for me to solder on the RTC?

https://cdn.awsli.com.br/17/17197/arqui ... ed-rtc.jpg

VCC => VDD
GND => GND
SCL => SCK
SDA => SDA

So in the picture you provided:
The BLACK wire goes to Pin 1 (GND)
The RED wire goes to Pin 2 (VDD)
The BLUE wire goes to Pin 3 (SCK)
The YELLOW wire goes to Pin 4 (SDA)

Thank you "Flandango" I really liked the transition of 2 images, do you have a tutorial how to create 2 "pix" to visualize a certain core?

See https://github.com/venice1200/MiSTer_i2 ... dification for a little picture howto.
Does this help?

Check this Repository as well
https://github.com/ingloriond/MiSter_I2 ... c2oled_pix
Maybe the picture is already made.

Thanks friend, is there any .pix file viewer for Windows?

Is anybody who is using i2c2oled with the latest Linux update having any issues?
I am getting errors and it looks like the version of BASH that comes with the latest linux update (Bash version 5.0.18(1)-releasee (arm-buildroot-linux-gnueabihf)) doesn't process string arrays properly and I am curious if anybody else has come across this.

Never mind. I had to convert all files to unix files with dos2unix. While it didn't seem to have a problem with Bash 4.x and 5.1, 5.0.x seems to really not like the carriage returns on each line of the PIX files.

marcelosofth wrote: ↑Mon Nov 29, 2021 11:45 pm Thanks friend, is there any .pix file viewer for Windows?

No. But open the file with an textviewer, make a screenshot from the characters and use graphics program to zoom out.
It should looks like...

Flandango wrote: ↑Tue Nov 30, 2021 1:15 am Never mind. I had to convert all files to unix files with dos2unix. While it didn't seem to have a problem with Bash 4.x and 5.1, 5.0.x seems to really not like the carriage returns on each line of the PIX files.

I am using the pix since the beginning and with the latest MiSTer System, no problem at all.
How did you copy the files over?