RGBtoHDMI for a SE/30 (settings from Plus and Classic 1 won't work)

[Mu0n]

I've been successfully using a RGBtoHDMI for close to 2 years now on my Mac Classic first, then Mac Plus, noting some differences in the settings, mostly around H, V offset and the H & V polarity.

I want to recreate this success with my SE/30 now. I have 2 self-bought, self-assembled RGBtoHDMI units with their Pi Zero and I also used a PC TLL extender board sandwiched between the Zero and the RGBtoHDMI hat. One will stay with the Plus, one will go to the SE/30.

Here's the DA-9 pinout that I've been using. This is the view you get by looking at the female connector on the RGBtoHDMI as well as the view from the interior of the DA-9 male connector as the wires are soldered to the pins.

Here's a full list of settings for my working setups:

Mac Classic:
Geometry:
Setup Mode: normal
H Offset: 176
V Offset: 23
Min H Width: 512
Min V Height: 342
Max H Width: 512
Max V Height: 342
H Pixel Aspect: 2
V Pixel Aspect: 2
FB Size: Normal
FB Bits/Pixel: 8
Clock Frequency: 15667200
Line Length: 704
Clock Tolerance: 5000
Lines per Frame: 370
Sync Type: -H-V
V Sync Type: Auto
Video Type: Progressive

Sampling Menu:
Setup Mode: normal
Sampling Phase: 4 (240 Degrees)
Half Pixel Shift: Off
Clock Multiplier: x6
Calibration Range: Auto
Pixel H Offset: 8
Sync Edge: Leading
Sync on G/V: Off
Sample Mode: 3 bits per Pixel

Mac Plus;
Geometry:
Setup Mode: normal
H Offset: 168
V Offset: 6
Min H Width: 512
Min V Height: 342
Max H Width: 512
Max V Height: 342
H Pixel Aspect: 2
V Pixel Aspect: 2
FB Size: Normal
FB Bits/Pixel: 4
Clock Frequency: 15667200
Line Length: 704
Clock Tolerance: 5000
Lines per Frame: 370
Sync Type: +H-V
V Sync Type: Auto
Video Type: Progressive

Sampling Menu:
Setup Mode: normal
Sampling Phase: 4 (180 Degrees)
Half Pixel Shift: Off
Clock Multiplier: x8
Calibration Range: Auto
Pixel H Offset: 1
Sync Edge: Trailing
Sync on G/V: Off
Sample Mode: 6 bits per Pixel

(changes between machines in bold)

Does anyone have a list of these settings known to be working on the SE/30?





J12 connector schematic on the SE/30 logic board (leading me to believe it's +H+V polarity; I've tested them all already anyway)

 

[Mu0n]

Ok I'm an idiot. wire colors are hard to get right past midnight. I inverted hsync and vsync on the J12 because I thought I could match colors between the SE/30 and my stuff. Still have to tweak some stuff but I'll post my results when I'm done!

 

[Mu0n]

Mac SE/30:
Geometry:
Setup Mode: normal
H Offset: 176
V Offset: 28
Min H Width: 512
Min V Height: 342
Max H Width: 512
Max V Height: 342
H Pixel Aspect: 2
V Pixel Aspect: 2
FB Size: Normal
FB Bits/Pixel: 8
Clock Frequency: 15667200
Line Length: 704
Clock Tolerance: 5000
Lines per Frame: 370
Sync Type: +H+V
V Sync Type: Auto
Video Type: Progressive

Sampling Menu:
Setup Mode: normal
Sampling Phase: 5 (300 Degrees)
Half Pixel Shift: Off
Clock Multiplier: x6
Calibration Range: Auto
Pixel H Offset: 7
Sync Edge: Trailing
Sync on G/V: Off
Sample Mode: 3 bits per Pixel

and in the palette I had to go invert the colors and choose an appropriate border color that showed as black.

 

[pyranger]

Mac SE/30:
Geometry:
Setup Mode: normal
H Offset: 176
V Offset: 28
Min H Width: 512
Min V Height: 342
Max H Width: 512
Max V Height: 342
H Pixel Aspect: 2
V Pixel Aspect: 2
FB Size: Normal
FB Bits/Pixel: 8
Clock Frequency: 15667200
Line Length: 704
Clock Tolerance: 5000
Lines per Frame: 370
Sync Type: +H+V
V Sync Type: Auto
Video Type: Progressive

Sampling Menu:
Setup Mode: normal
Sampling Phase: 5 (300 Degrees)
Half Pixel Shift: Off
Clock Multiplier: x6
Calibration Range: Auto
Pixel H Offset: 7
Sync Edge: Trailing
Sync on G/V: Off
Sample Mode: 3 bits per Pixel

and in the palette I had to go invert the colors and choose an appropriate border color that showed as black.

View attachment 61639

nice job! Say, I was reading in my newly acquired Macintosh Bible 3rd Edition that an SE/30 has color Quickdraw in it's ROM. I don't suppose there is any way to extract that color from the motherboard with the pi RGB2HDMI?

 

[zigzagjoe]

nice job! Say, I was reading in my newly acquired Macintosh Bible 3rd Edition that an SE/30 has color Quickdraw in it's ROM. I don't suppose there is any way to extract that color from the motherboard with the pi RGB2HDMI?

No, the built-in video is black and white only. Color quickdraw allows it to support color with an appropriate video card installed, but there's no way to get color without additional hardware.

 

[pyranger]

thx

No, the built-in video is black and white only. Color quickdraw allows it to support color with an appropriate video card installed, but there's no way to get color without additional hardware.

thx