MiSTer FPGA Forum

Ah right, because that was labelled Motor rather than +9v on the pin out I didn't realise. Thanks.

eriks5 wrote: ↑Thu Jul 21, 2022 10:09 am I suppose the core could be updated to provide the signals to a new adapter that hooks a datasette to the MiSTer user port. But it'll be more complicated than most adapters as the datasette motor requires 9 volts to operate.

Are you sure? The cassette port only provided 5v, it was the user port that had a 9v connection.

I seem to remember that the Commodore datasette has an internal ADC and outputs (or receives) a digital signal from the user port. It is possible to connect it to the MiSTer user port (obviously an adapter would be needed) to read the digital signals and also control the motor?

The Arduino connectors are just female rather than male pins. You don't need to solder, just use a dupont lead to connect the fan.

Sorry, missed the point that it was a powered hub. Are you still using the stock power supply? I think a better one such as a 4amp meanwell supply is recommended these days.

I find that recently unpowered devices such a hard drives don't work reliably. I've since bought a powered USB hub and everything works perfectly. I can only assume that over the years Linux upgrades and other new features have increased the power draw and there just isn't enough left on the USB port to power some devices. I'd suggest either going ...

ok thanks, sounds like a bug got introduced somewhere. I can stop taking it apart now (must have done it 20 times) and wait for the fix.

that is also set correctly. here is my config file, where it says <hidden> I've just overtyped the values on the forum posting to avoid showing any sensitive info. Having dug into the X68000 core I can see that the MT32 Pi module expects to receive either 0x45 or 0x3c as the initial value from the I2C. So even though the OLED seems to be receiving ...

Thanks, that is set properly to my ssd1306 at address 3c. The OLED display is working perfectly. It is just the OSD submenu that won't appear.

I have the same problem, just posted in a new topic as google didn't bring this one up. Did you manage to fix it?

Hi I've got a strange situation where my self built MT32-Pi is working as in 1) MT32-PI receives MIDI signal 2) OLED display works fine, updates properly when playing 3) Sound is properly mixed with MiSTer over I2S 4) Physical Controls work fine Both MT32 and Sound Canvas play fine using X68000 and AO486 cores However, the MT32 sub menu never shows...

i use a ttl usb to connect to the mister directly soldered to the board I don't know which ESP board you have but some have USB on them to connect directly with the MiSTer (and to flash). If that is the case the TTL to USB would be superfluous (although no reason it wouldn't work but something else to remove from the equation). If you remove the d...

BTW, you can configure the FPGA over USB without changing the dip switches from the SD Card boot position. Sounds like what you did was maybe write to the flash memory as well (which is non-volatile) so if you do have the dip switches in the wrong place going forward the De10 would boot into whichever core you flashed rather than the blinking led (...

Nothing is permanent on the FPGA, it is RAM and loses its contents when powered off. The dip switches determine how the FPGA is configured at boot, with 2 of the options being program from flash memory or from a file on the SD Card. It sounds much more likely the a dip switch was knocked and the De10 was no longer booting from SD Card. I think the ...

Seems to be completely stable running at 115200. Takes a second or 2 to transfer but I don't remember a single transfer error. The scaling is pretty crude, I just use the bytes read to determine whether the image is a 256x64 or a 160x80 one and set a flag. If the pic is an XBM and a call is made to drawXBMBitmap I check for the flag and call a cust...

No problem, links below to the menu in both XBM and GSC and 1942 in XBM. The Punisher link above is also a standard GSC. They look a lot better on the screen, the camera picks up a lot of artefacts that you can't normally see.

Link to source

https://github.com/dave18/MiSTer_tty2ol ... 735_Colour

I've been playing around with some RGB displays I have and have added functionality to display 16 bit (565) colour pictures and 8 bit indexed (pixel bytes followed by 512 bytes (256 16 bit palette entries) modes for my 160 x 80 display. It works really well and can still display the original XBM and GSC files (although anything wider the 160 has th...

Do you still need a paid version of Quartus to compile? I thought I remembered that Ao486 included some IPs that weren't included in the free version.

The Windows libraries seem a bit funky. I had similar issues and ended up programming my unit from a Linux vm running from within Windows and everything worked fine. Go figure!

I think the trouble is the the IO board already provides +5v, it is the ground that generates the 3v differential by only dropping to 1.7v and therefore I don't think splicing from a different 5v source will help. Obviously the LEDs won't mind a lower voltage than they are rated for but will indeed be dimmer. Really you should get halo LEDs that ar...

Have you checked the dip switches are firmly in the correct position for booting from SD card? I can't remember what the default flash behaviour is but it is quite often something like pulsing an LED.

One thing worth noting with that case is that the metal is relatively thick and will take some cutting through. I would recommend finding some scrap metal to test your hole cutting skills on first. The front, back and bottom are a single piece of metal so you can't replace with a 3d printed panel or PCB, therefore you will need to cut the required ...

In case it is useful for anyone, here is a link to the 3d print file for the caddy I designed for my MiSTer case. I just hot glued the caddy in place and then the MiSTer can easily be inserted/removed.

https://www.tinkercad.com/things/asyMeEAooeg

(edit - forgot link )

Case is finished and the display looks small but perfectly formed. Dave, I'm about to create a 3D printed case for the 3.2“ / 256x64 displays. I know that you have your (smaller) display setup integrated to your "real" case, but I'm specially interested in how you've "stacked" the OLED, PCB and ESP together to estimate the dime...

Reg wrote: ↑Sun May 16, 2021 11:47 pm Q: Where on earth do I find the u8g2.h file ? I've searched in my install folder and not there for Arduino.

On my Windows machine the library is installed in Documents/Arduino/libraries

Have a look at the instructions that Venice has provided here https://github.com/venice1200/MiSTer_tt ... o-Settings
It's not too difficult, have a read and give it a try and come back and ask for help if you get stuck.

Also, you only need an sd card in the TTGO if you are using the sd version of tty2oled (and then it will only contain the xbmp image files) . For the USB version no sd card is needed, you need to upload the binary to the flash of the actual TTGO (which you also need to do for the other versions) .

The screen should display 'Mister FPGA by Sorgelig' if not connected to an actual Mister device.

I believe Venice has stated that the TTGO is not selected by default in the latest Sketch source so make sure you uncomment the correct define (and comment any others)

venice wrote: ↑Fri May 14, 2021 8:24 am

dave18 wrote: ↑Thu May 13, 2021 11:07 pm (I've had extra stuff plugged in and has to send data to ttyUSB1).

Can I ask what kind of device it is?

It was another ESP device!