Legible SNES Schematics
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- For making cartridges of your Super NES games, see Reproduction.
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Re: Legible SNES Schematics
Wikipedia says the Super FX can upload graphics from the cartridge to VRAM. Shouldn't therefore the PA lines on the connector be bidirectional?
My current setup:
Super Famicom ("2/1/3" SNS-CPU-GPM-02) → SCART → OSSC → StarTech USB3HDCAP → AmaRecTV 3.10
Super Famicom ("2/1/3" SNS-CPU-GPM-02) → SCART → OSSC → StarTech USB3HDCAP → AmaRecTV 3.10
Re: Legible SNES Schematics
There is only one bus master in the SNES, and that's the S-CPU and its DMA unit. The SFX is not what's doing the uploading.
- Señor Ventura
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Re: Legible SNES Schematics
I always believed that DMA can transfer tiles directly from the rom to the vram... and with an sfx we still have the dma doing the same job.
The SFX don't do anything in that way.
The SFX don't do anything in that way.
Re: Legible SNES Schematics
It can.
DMA transfers data from one bus to the other. ROM and cart RAM are on bus A, and the PPU's VRAM data port is on bus B. The console's WRAM is on bus A or bus B (but not both at once). DMA from cart RAM to WRAM pauses the 65816, and I think the GSU is paused as well.
DMA transfers data from one bus to the other. ROM and cart RAM are on bus A, and the PPU's VRAM data port is on bus B. The console's WRAM is on bus A or bus B (but not both at once). DMA from cart RAM to WRAM pauses the 65816, and I think the GSU is paused as well.
- Firebrandx
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Re: Legible SNES Schematics
OP's link is broken. Anyone have a mirror link?
Re: Legible SNES Schematics
Not sure if it's the most recent version
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Re: Legible SNES Schematics
Here's the last version of snes_schematic_color I have, four minor revisions newer than what sanni posted-
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- snes_schematic_color.pdf
- version 1.5, internal date stamp of 2014 Feb 24
- (269.54 KiB) Downloaded 559 times
- Firebrandx
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Re: Legible SNES Schematics
If you click on that link you posted, you'll see all the schematic file links are broken.whicker wrote:I think the commas went away, or something.
https://wiki.superfamicom.org/schematic ... nd-pinouts
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Re: Legible SNES Schematics
https://drive.google.com/file/d/1BVGpgo ... sp=sharing
Hello, my name is Arthur, since my friend posted here the connection diagram for the Super Nintendo motherboard, here I made an eagle library that you can import from my sch and I'll leave here the download of the parts I made for Autodesk Eagle 9 and it took a while 4 hours to do it, enjoy it and download it if you want to make it
Hello, my name is Arthur, since my friend posted here the connection diagram for the Super Nintendo motherboard, here I made an eagle library that you can import from my sch and I'll leave here the download of the parts I made for Autodesk Eagle 9 and it took a while 4 hours to do it, enjoy it and download it if you want to make it
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Re: Legible SNES Schematics
I'm very very late to the discussion but wanted to ask, how do you got about creating the schematic for computer components? Like the chips in the snes.
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Re: Legible SNES Schematics
You look at the chips and their markings, and use a digital multimeter for testing for continuity to see which components are connected via which traces.
Then you take a drawing program of your choice and create a document with your findings.
Then you take a drawing program of your choice and create a document with your findings.
My current setup:
Super Famicom ("2/1/3" SNS-CPU-GPM-02) → SCART → OSSC → StarTech USB3HDCAP → AmaRecTV 3.10
Super Famicom ("2/1/3" SNS-CPU-GPM-02) → SCART → OSSC → StarTech USB3HDCAP → AmaRecTV 3.10
Re: Legible SNES Schematics
Hello, does anyone have 1chip schematics? I'm having a really strange issue with the audio output on one unit, all caps are good and chips U6 and U10 have proper Voltage supply, but audio is coming out super low, only audible with an amp or tv maxed out and even that way it outputs a very low signal, I've checked the cable too and tried many tvs, I've even measured followed and jumpered the audio signal straight from pins 1 and 4 out if the DAC (U6) and its coming really low even from those pins, basically audio comes out from those pins really low and it goes unchanged all the way to the final pinout 11-12 of the output cable, composite and RF all the same since the mix only directs that signal that is already low, I've tried everything I could think of, I have the schematic for the pal version but mine is ntsc, anyone have any idea of what could be causing this? Video comes out pefectly only audio the problem.