kopia lustrzana https://github.com/hoglet67/RGBtoHDMI
V1.1 Updates to improve picture quality and eliminate the need for excessive overclocking
rodzic
e5bd570370
commit
bcb667f1c2
|
@ -3,20 +3,11 @@
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|||
This adapter builds on the ideas from the Amiga Denise adapter V2, adapted for use in big box Amiga video slots.
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The main differences are:
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- The 7MHZ signal is derived via C1 XNOR C3 using an additional 74LVC86 since 7MHZ is not available directly from the video slot
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- The 7MHZ signal is derived via C1 XNOR C3 since 7MHZ is not available directly from the video slot
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- Two button connectors allow for both a rear slot cover bracket button and another to be used, mounted wherever desired
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The card edge connector used is from Amiga-KiCad-Library (https://github.com/JustinBaldock/Amiga-KiCad-Library). Approximately 1mm of space is left between the fingers and the PCB edge to allow for beveling.
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## Recommendations for builders & resellers
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- To ensure the best possible picture on all Amigas, builders should include C6 (47 pf capacitor).
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- V1.0 boards can easily be updated to include C6 by soldering the capacitor between pins 9 and 11 of the Pi connector on the bottom side of the board
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- Try the default software profile first, and if any glitches appear on the image update the software profile settings to include the below settings:
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- Settings Menu->Overclock CPU: 40
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- Settings Menu->Overclock Core: 170
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- Sampling Menu->Sync Edge: Trailing with +ve PixClk
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- A heat sink on the Pi is also highly recommended.
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## Assembly
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- [Interactive BOM](bom/ibom.html)
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@ -25,5 +16,9 @@ The card edge connector used is from Amiga-KiCad-Library (https://github.com/Jus
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- Orient the PCB such that the end with bracket mounting holes faces the rear of the machine
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## Version History
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- V1.1:
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- Routing changes that eliminate "sparkling" on certain image patterns
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- Excessive overclocking and the extra 47pf capacitor should no longer be necessary
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- Make use of unused gates on the original 74LVC86 instead of adding another
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- V1.01 Added spot for 47pf capacitor (C6) to ensure no sparkling on image, and grounded unused inputs on U5 per data sheet recommendation.
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- V1.00 Initial version.
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@ -1,4 +1,4 @@
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update=4/3/2021 11:05:14 AM
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update=6/8/2021 8:01:24 PM
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version=1
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last_client=kicad
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[general]
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||||
|
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@ -5,8 +5,8 @@ $Descr A3 16535 11693
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encoding utf-8
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Sheet 1 1
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Title "RGBtoHDMI Amiga Video Slot Adapter"
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Date "2021-04-03"
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Rev "1.01"
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Date "2021-06-03"
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Rev "1.1"
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Comp ""
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Comment1 ""
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Comment2 ""
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|
@ -845,8 +845,6 @@ Wire Wire Line
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|||
Wire Wire Line
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||||
9050 1500 9050 1000
|
||||
Connection ~ 9050 1500
|
||||
Wire Wire Line
|
||||
9050 1500 9250 1500
|
||||
$Comp
|
||||
L power:GND #PWR0108
|
||||
U 1 1 5F704071
|
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|
@ -864,8 +862,6 @@ Wire Wire Line
|
|||
8050 1400 8150 1400
|
||||
Wire Wire Line
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||||
8150 1700 8150 1600
|
||||
Text Label 6450 8250 0 50 ~ 0
|
||||
7MHZ
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Wire Wire Line
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||||
5350 2500 5400 2500
|
||||
Wire Wire Line
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||||
|
@ -876,23 +872,6 @@ Wire Wire Line
|
|||
4750 1000 5700 1000
|
||||
Wire Wire Line
|
||||
4500 2350 4500 2050
|
||||
Wire Wire Line
|
||||
4100 2350 3900 2350
|
||||
Wire Wire Line
|
||||
3900 2350 3900 2150
|
||||
$Comp
|
||||
L power:+3.3V #PWR0110
|
||||
U 1 1 5F7C63B6
|
||||
P 3850 1900
|
||||
F 0 "#PWR0110" H 3850 1750 50 0001 C CNN
|
||||
F 1 "+3.3V" H 3865 2073 50 0000 C CNN
|
||||
F 2 "" H 3850 1900 50 0001 C CNN
|
||||
F 3 "" H 3850 1900 50 0001 C CNN
|
||||
1 3850 1900
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
Wire Wire Line
|
||||
3850 1900 3850 1950
|
||||
Wire Wire Line
|
||||
3850 1950 3900 1950
|
||||
$Comp
|
||||
|
@ -956,125 +935,6 @@ Wire Wire Line
|
|||
Wire Wire Line
|
||||
1050 7700 1750 7700
|
||||
$Comp
|
||||
L 74xx:74HC86 U5
|
||||
U 2 1 604D47AE
|
||||
P 6150 8250
|
||||
F 0 "U5" H 6150 8575 50 0000 C CNN
|
||||
F 1 "74LVC86" H 6150 8484 50 0000 C CNN
|
||||
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 6150 8250 50 0001 C CNN
|
||||
F 3 "http://www.ti.com/lit/gpn/sn74HC86" H 6150 8250 50 0001 C CNN
|
||||
2 6150 8250
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:+3.3V #PWR0111
|
||||
U 1 1 604D47B5
|
||||
P 5800 8100
|
||||
F 0 "#PWR0111" H 5800 7950 50 0001 C CNN
|
||||
F 1 "+3.3V" H 5815 8273 50 0000 C CNN
|
||||
F 2 "" H 5800 8100 50 0001 C CNN
|
||||
F 3 "" H 5800 8100 50 0001 C CNN
|
||||
1 5800 8100
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
Wire Wire Line
|
||||
5800 8100 5800 8150
|
||||
Wire Wire Line
|
||||
5800 8150 5850 8150
|
||||
$Comp
|
||||
L 74xx:74HC86 U5
|
||||
U 1 1 604E2976
|
||||
P 5250 8250
|
||||
F 0 "U5" H 5250 8575 50 0000 C CNN
|
||||
F 1 "74LVC86" H 5250 8484 50 0000 C CNN
|
||||
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 5250 8250 50 0001 C CNN
|
||||
F 3 "http://www.ti.com/lit/gpn/sn74HC86" H 5250 8250 50 0001 C CNN
|
||||
1 5250 8250
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
Wire Wire Line
|
||||
1250 7800 1250 9050
|
||||
Wire Wire Line
|
||||
1250 9050 4700 9050
|
||||
Wire Wire Line
|
||||
4700 9050 4700 8350
|
||||
Wire Wire Line
|
||||
4700 8350 4950 8350
|
||||
Wire Wire Line
|
||||
5650 8350 5650 8250
|
||||
Wire Wire Line
|
||||
5550 8250 5650 8250
|
||||
Wire Wire Line
|
||||
5650 8350 5850 8350
|
||||
Wire Wire Line
|
||||
6450 8250 6450 5850
|
||||
Wire Wire Line
|
||||
6450 5850 4700 5850
|
||||
Wire Wire Line
|
||||
4700 5850 4700 3200
|
||||
Wire Wire Line
|
||||
4700 3200 4100 3200
|
||||
Wire Wire Line
|
||||
4100 2350 4100 3200
|
||||
$Comp
|
||||
L 74xx:74HC86 U5
|
||||
U 5 1 605A5914
|
||||
P 5250 9450
|
||||
F 0 "U5" H 5480 9496 50 0000 L CNN
|
||||
F 1 "74LVC86" H 5480 9405 50 0000 L CNN
|
||||
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 5250 9450 50 0001 C CNN
|
||||
F 3 "http://www.ti.com/lit/gpn/sn74HC86" H 5250 9450 50 0001 C CNN
|
||||
5 5250 9450
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:GND #PWR0116
|
||||
U 1 1 605A591A
|
||||
P 5250 10050
|
||||
F 0 "#PWR0116" H 5250 9800 50 0001 C CNN
|
||||
F 1 "GND" H 5255 9877 50 0000 C CNN
|
||||
F 2 "" H 5250 10050 50 0001 C CNN
|
||||
F 3 "" H 5250 10050 50 0001 C CNN
|
||||
1 5250 10050
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L power:+3.3V #PWR0118
|
||||
U 1 1 605A5920
|
||||
P 5250 8850
|
||||
F 0 "#PWR0118" H 5250 8700 50 0001 C CNN
|
||||
F 1 "+3.3V" H 5265 9023 50 0000 C CNN
|
||||
F 2 "" H 5250 8850 50 0001 C CNN
|
||||
F 3 "" H 5250 8850 50 0001 C CNN
|
||||
1 5250 8850
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
Wire Wire Line
|
||||
5250 8850 5250 8950
|
||||
Wire Wire Line
|
||||
5250 9950 5250 10050
|
||||
$Comp
|
||||
L Device:C_Small C5
|
||||
U 1 1 605D70A1
|
||||
P 11250 7100
|
||||
F 0 "C5" H 11342 7146 50 0000 L CNN
|
||||
F 1 "100nF" H 11342 7055 50 0000 L CNN
|
||||
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 11250 7100 50 0001 C CNN
|
||||
F 3 "~" H 11250 7100 50 0001 C CNN
|
||||
1 11250 7100
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
Wire Wire Line
|
||||
10800 6850 11250 6850
|
||||
Wire Wire Line
|
||||
11250 6850 11250 7000
|
||||
Wire Wire Line
|
||||
11250 7200 11250 7300
|
||||
Wire Wire Line
|
||||
11250 7300 10800 7300
|
||||
Connection ~ 10800 6850
|
||||
Connection ~ 10800 7300
|
||||
$Comp
|
||||
L Connector_Generic:Conn_01x02 JButton2
|
||||
U 1 1 605EA3DB
|
||||
P 8000 5450
|
||||
|
@ -1107,85 +967,12 @@ Wire Wire Line
|
|||
Connection ~ 8300 4850
|
||||
Wire Wire Line
|
||||
3450 6500 3950 6500
|
||||
Text Label 4950 8150 2 50 ~ 0
|
||||
Text Label 3850 1950 0 50 ~ 0
|
||||
C1
|
||||
$Comp
|
||||
L Device:C_Small C6
|
||||
U 1 1 60693B85
|
||||
P 9250 1600
|
||||
F 0 "C6" H 9342 1646 50 0000 L CNN
|
||||
F 1 "47pf" H 9342 1555 50 0000 L CNN
|
||||
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 9250 1600 50 0001 C CNN
|
||||
F 3 "~" H 9250 1600 50 0001 C CNN
|
||||
1 9250 1600
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
Connection ~ 9250 1500
|
||||
Wire Wire Line
|
||||
9250 1500 9500 1500
|
||||
$Comp
|
||||
L power:GND #PWR0125
|
||||
U 1 1 606959B9
|
||||
P 9250 1700
|
||||
F 0 "#PWR0125" H 9250 1450 50 0001 C CNN
|
||||
F 1 "GND" H 9255 1527 50 0000 C CNN
|
||||
F 2 "" H 9250 1700 50 0001 C CNN
|
||||
F 3 "" H 9250 1700 50 0001 C CNN
|
||||
1 9250 1700
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L 74xx:74HC86 U5
|
||||
U 3 1 606D7CDB
|
||||
P 6650 8900
|
||||
F 0 "U5" H 6650 9225 50 0000 C CNN
|
||||
F 1 "74LVC86" H 6650 9134 50 0000 C CNN
|
||||
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 6650 8900 50 0001 C CNN
|
||||
F 3 "http://www.ti.com/lit/gpn/sn74HC86" H 6650 8900 50 0001 C CNN
|
||||
3 6650 8900
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
$Comp
|
||||
L 74xx:74HC86 U5
|
||||
U 4 1 606DDCCA
|
||||
P 6650 9550
|
||||
F 0 "U5" H 6650 9875 50 0000 C CNN
|
||||
F 1 "74LVC86" H 6650 9784 50 0000 C CNN
|
||||
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 6650 9550 50 0001 C CNN
|
||||
F 3 "http://www.ti.com/lit/gpn/sn74HC86" H 6650 9550 50 0001 C CNN
|
||||
4 6650 9550
|
||||
1 0 0 -1
|
||||
$EndComp
|
||||
3900 2150 3850 2150
|
||||
Text Label 3850 2150 0 50 ~ 0
|
||||
C3
|
||||
Wire Wire Line
|
||||
6350 8800 6350 8900
|
||||
Wire Wire Line
|
||||
6350 9450 6350 9550
|
||||
$Comp
|
||||
L power:GND #PWR0126
|
||||
U 1 1 60701548
|
||||
P 6350 8900
|
||||
F 0 "#PWR0126" H 6350 8650 50 0001 C CNN
|
||||
F 1 "GND" H 6355 8727 50 0000 C CNN
|
||||
F 2 "" H 6350 8900 50 0001 C CNN
|
||||
F 3 "" H 6350 8900 50 0001 C CNN
|
||||
1 6350 8900
|
||||
0 1 1 0
|
||||
$EndComp
|
||||
Connection ~ 6350 8900
|
||||
Wire Wire Line
|
||||
6350 8900 6350 9000
|
||||
$Comp
|
||||
L power:GND #PWR0127
|
||||
U 1 1 60715844
|
||||
P 6350 9550
|
||||
F 0 "#PWR0127" H 6350 9300 50 0001 C CNN
|
||||
F 1 "GND" H 6355 9377 50 0000 C CNN
|
||||
F 2 "" H 6350 9550 50 0001 C CNN
|
||||
F 3 "" H 6350 9550 50 0001 C CNN
|
||||
1 6350 9550
|
||||
0 1 1 0
|
||||
$EndComp
|
||||
Connection ~ 6350 9550
|
||||
Wire Wire Line
|
||||
6350 9550 6350 9650
|
||||
9050 1500 9500 1500
|
||||
$EndSCHEMATC
|
||||
|
|
Plik diff jest za duży
Load Diff
Ładowanie…
Reference in New Issue