diff --git a/Docs.sch b/Docs.sch index b0c42cb..5471356 100644 --- a/Docs.sch +++ b/Docs.sch @@ -4,10 +4,10 @@ EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 2 2 -Title "" -Date "" -Rev "" -Comp "" +Title "GW4201D (RAM2GS II)" +Date "2020-08-02" +Rev "1.0" +Comp "Garrett's Workshop" Comment1 "" Comment2 "" Comment3 "" diff --git a/Documentation/Description.txt b/Documentation/Description.txt deleted file mode 100644 index 0b6bba3..0000000 --- a/Documentation/Description.txt +++ /dev/null @@ -1,63 +0,0 @@ -RAM2GS II (GW4201D) expands the Apple IIgs's -fast memory to 8 MB. - - -Low-Power, SDRAM-Based Design ----------------------------------------- -Thanks to a modern, low-power design, -RAM2GS II uses a maximum of 0.15 watts when idle -(30 mA @ 5V) and 0.3W in active use (60 mA @ 5V). -Unlike other IIgs expansion RAM cards, which are -built with vintage asynchronous DRAM chips, -RAM2GS II uses modern SDRAM. This design allows for -low power consumption and improved reliability -over other memory cards using 15+ year old chips. - - -Small Size, Low-Profile ----------------------------------------- -RAM2GS II features a small board outline and is the -thinnest Apple IIgs expansion memory card ever produced, -at under 4mm thin. Small and thin dimensions improve -the mechanical compatibility between RAM2GS II and -peripheral cards installed into the IIgs's Slot 7. - - -Adjustable Capacity, Highly Compatible ----------------------------------------- -The Apple IIgs can utilize up to 8 MB of fast memory, -but due to limitations of the Apple IIgs hardware, -not all 8 MB is considered "DMA-compatible." -Only 4 MB of the 8 MB provided by an expansion RAM -card such as the RAM2GS II is DMA-compatible, -and peripheral cards which use DMA are -not able to access expansion memory beyond 4 MB. -RAM2GS II implements an adjustable capacity -feature, allowing the user to select between -fully DMA-compatible 4 MB capacity, or -partially DMA-compatible 8MB capacity. -Capacity settings can be set temporarily -or saved in nonvolatile memory. -The capacity adjustment utility is available on -_RAM2GS II's support page_. - - -Ecologically Friendly, Gold-Plated PCB ----------------------------------------- -RAM2GS II features a lead-free, ENIG gold-plated, -4-layer PCB and is fully EU RoHS-compliant. -All units are tested extensively before shipment. -Only new parts are used to build RAM2GS II, -and all RAM2GS II cards are manufactured in our -semi-automated facility in Columbus, Ohio, -in the United States. - - -Open-Source Design ----------------------------------------- -RAM2GS II's design is fully open-source. -The schematics, board layouts, CPLD firmware, -and utility software are all freely available -for commercial and noncommercial use. -To download the design files, visit the -_Garrett's Workshop GitHub page_. diff --git a/Documentation/Placement.pdf b/Documentation/Placement.pdf index 7ee4de6..e7ed6a7 100644 Binary files a/Documentation/Placement.pdf and b/Documentation/Placement.pdf differ diff --git a/Documentation/Schematic.pdf b/Documentation/Schematic.pdf new file mode 100644 index 0000000..c0245d3 Binary files /dev/null and b/Documentation/Schematic.pdf differ diff --git a/RAM2GS.kicad_pcb b/RAM2GS.kicad_pcb index a5dc902..bc49ed7 100644 --- a/RAM2GS.kicad_pcb +++ b/RAM2GS.kicad_pcb @@ -10,6 +10,13 @@ ) (page A4) + (title_block + (title "GW4203D (RAM2GS II)") + (date 2020-08-02) + (rev 1.0) + (company "Garrett's Workshop") + ) + (layers (0 F.Cu signal) (1 In1.Cu power) @@ -437,7 +444,7 @@ (fp_text reference U9 (at 0 0 90) (layer F.Fab) (effects (font (size 0.254 0.254) (thickness 0.0635))) ) - (fp_text value 74LVC1G04GW (at 0.35 0 90) (layer F.Fab) + (fp_text value 74LVC1G04 (at 0.35 0 90) (layer F.Fab) (effects (font (size 0.1905 0.1905) (thickness 0.047625))) ) (fp_line (start 1.6 1.3) (end -1.6 1.3) (layer F.CrtYd) (width 0.05)) @@ -478,7 +485,7 @@ (fp_text reference U10 (at 0 0 90) (layer F.Fab) (effects (font (size 0.254 0.254) (thickness 0.0635))) ) - (fp_text value 74LVC1G04GW (at 0.35 0 90) (layer F.Fab) + (fp_text value 74LVC1G04 (at 0.35 0 90) (layer F.Fab) (effects (font (size 0.1905 0.1905) (thickness 0.047625))) ) (fp_line (start 1.6 1.3) (end -1.6 1.3) (layer F.CrtYd) (width 0.05)) @@ -568,7 +575,7 @@ (fp_text reference RN2 (at 0 0 90) (layer F.Fab) (effects (font (size 0.254 0.254) (thickness 0.0635))) ) - (fp_text value 4x47 (at 0.3 0 90) (layer F.Fab) + (fp_text value 4x30 (at 0.3 0 90) (layer F.Fab) (effects (font (size 0.1905 0.1905) (thickness 0.047625))) ) (fp_text user %R (at 0 0 270) (layer F.SilkS) hide @@ -617,7 +624,7 @@ (fp_text reference RN3 (at 0 0 90) (layer F.Fab) (effects (font (size 0.254 0.254) (thickness 0.0635))) ) - (fp_text value 4x47 (at 0.3 0 90) (layer F.Fab) + (fp_text value 4x30 (at 0.3 0 90) (layer F.Fab) (effects (font (size 0.1905 0.1905) (thickness 0.047625))) ) (fp_text user %R (at 0 0 270) (layer F.SilkS) hide @@ -666,7 +673,7 @@ (fp_text reference RN4 (at 0 0) (layer F.Fab) (effects (font (size 0.254 0.254) (thickness 0.0635))) ) - (fp_text value 4x47 (at 0.3 0) (layer F.Fab) + (fp_text value 4x30 (at 0.3 0) (layer F.Fab) (effects (font (size 0.1905 0.1905) (thickness 0.047625))) ) (fp_text user %R (at 0 0 180) (layer F.SilkS) hide @@ -715,7 +722,7 @@ (fp_text reference RN5 (at 0 0) (layer F.Fab) (effects (font (size 0.254 0.254) (thickness 0.0635))) ) - (fp_text value 4x47 (at 0.3 0) (layer F.Fab) + (fp_text value 4x30 (at 0.3 0) (layer F.Fab) (effects (font (size 0.1905 0.1905) (thickness 0.047625))) ) (fp_text user %R (at 0 0 180) (layer F.SilkS) hide @@ -2367,7 +2374,7 @@ ) ) - (module stdpads:TSSOP-20_4.4x6.5mm_P0.65mm (layer F.Cu) (tedit 5EE296B4) (tstamp 5E96A451) + (module stdpads:TSSOP-20_4.4x6.5mm_P0.65mm (layer F.Cu) (tedit 5EE296B4) (tstamp 5F273F52) (at 77.025 125.45 90) (descr "20-Lead Plastic Thin Shrink Small Outline (ST)-4.4 mm Body [TSSOP] (see Microchip Packaging Specification 00000049BS.pdf)") (tags "SSOP 0.65") @@ -2896,7 +2903,7 @@ (module stdpads:R_0805 (layer F.Cu) (tedit 5F027DD1) (tstamp 5EED1618) (at 71.7 125.65) (tags resistor) - (path /5EED7F16) + (path /5F2CC469) (solder_mask_margin 0.05) (solder_paste_margin -0.025) (attr smd) diff --git a/RAM2GS.pro b/RAM2GS.pro index 1d9d8bc..a8a7b86 100644 --- a/RAM2GS.pro +++ b/RAM2GS.pro @@ -1,4 +1,4 @@ -update=Sunday, July 05, 2020 at 10:26:01 PM +update=Sunday, August 02, 2020 at 06:25:20 PM version=1 last_client=kicad [general] @@ -12,16 +12,6 @@ NetIExt=net version=1 LibDir= [eeschema/libraries] -[schematic_editor] -version=1 -PageLayoutDescrFile= -PlotDirectoryName= -SubpartIdSeparator=0 -SubpartFirstId=65 -NetFmtName=Pcbnew -SpiceAjustPassiveValues=0 -LabSize=50 -ERC_TestSimilarLabels=1 [pcbnew] version=1 PageLayoutDescrFile= @@ -272,3 +262,13 @@ uViaDrill=0.1 dPairWidth=0.2 dPairGap=0.25 dPairViaGap=0.25 +[schematic_editor] +version=1 +PageLayoutDescrFile= +PlotDirectoryName= +SubpartIdSeparator=0 +SubpartFirstId=65 +NetFmtName=Pcbnew +SpiceAjustPassiveValues=0 +LabSize=50 +ERC_TestSimilarLabels=1 diff --git a/RAM2GS.sch b/RAM2GS.sch new file mode 100644 index 0000000..2e33483 --- /dev/null +++ b/RAM2GS.sch @@ -0,0 +1,1915 @@ +EESchema Schematic File Version 4 +EELAYER 30 0 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GW_Logic:Oscillator_4P U3 +U 1 1 5E97642A +P 1050 5350 +F 0 "U3" H 1050 5600 50 0000 C CNN +F 1 "60M" H 1050 5200 50 0000 C CNN +F 2 "stdpads:Crystal_SMD_3225-4Pin_3.2x2.5mm" H 1050 5350 50 0001 C CNN +F 3 "" H 1050 5350 50 0001 C CNN + 1 1050 5350 + 1 0 0 -1 +$EndComp +$Comp +L power:GND #PWR0127 +U 1 1 5EC8FA5E +P 1400 5450 +F 0 "#PWR0127" H 1400 5200 50 0001 C CNN +F 1 "GND" H 1400 5300 50 0000 C CNN +F 2 "" H 1400 5450 50 0001 C CNN +F 3 "" H 1400 5450 50 0001 C CNN + 1 1400 5450 + 1 0 0 -1 +$EndComp +$Comp +L power:+3V3 #PWR0149 +U 1 1 5EC960AF +P 1400 5250 +F 0 "#PWR0149" H 1400 5100 50 0001 C CNN +F 1 "+3V3" H 1400 5400 50 0000 C CNN +F 2 "" H 1400 5250 50 0001 C CNN +F 3 "" H 1400 5250 50 0001 C CNN + 1 1400 5250 + 1 0 0 -1 +$EndComp +$Comp +L Connector_Generic:Conn_02x05_Odd_Even J2 +U 1 1 5ED04C0E +P 3550 7150 +F 0 "J2" H 3600 7450 50 0000 C CNN +F 1 "JTAG" H 3600 6850 50 0000 C CNN +F 2 "Connector:Tag-Connect_TC2050-IDC-FP_2x05_P1.27mm_Vertical" H 3550 7150 50 0001 C CNN +F 3 "~" H 3550 7150 50 0001 C CNN + 1 3550 7150 + 1 0 0 -1 +$EndComp +$Comp +L power:GND #PWR0150 +U 1 1 5ED07B90 +P 3850 7350 +F 0 "#PWR0150" H 3850 7100 50 0001 C CNN +F 1 "GND" H 3850 7200 50 0000 C CNN +F 2 "" H 3850 7350 50 0001 C CNN +F 3 "" H 3850 7350 50 0001 C CNN + 1 3850 7350 + 1 0 0 -1 +$EndComp +$Comp +L power:GND #PWR0151 +U 1 1 5ED07F60 +P 3850 6950 +F 0 "#PWR0151" H 3850 6700 50 0001 C CNN +F 1 "GND" H 3850 6800 50 0000 C CNN +F 2 "" H 3850 6950 50 0001 C CNN +F 3 "" H 3850 6950 50 0001 C CNN + 1 3850 6950 + -1 0 0 1 +$EndComp +$Comp +L power:+3V3 #PWR0152 +U 1 1 5ED08D4E +P 4000 7050 +F 0 "#PWR0152" H 4000 6900 50 0001 C CNN +F 1 "+3V3" H 4000 7200 50 0000 C CNN +F 2 "" H 4000 7050 50 0001 C CNN +F 3 "" H 4000 7050 50 0001 C CNN + 1 4000 7050 + 1 0 0 -1 +$EndComp +Wire Wire Line + 4000 7050 3850 7050 +Text Label 3350 6950 2 50 ~ 0 +TCK +Text Label 3350 7050 2 50 ~ 0 +TDO +Text Label 3350 7150 2 50 ~ 0 +TMS +Text Label 3350 7350 2 50 ~ 0 +TDI +NoConn ~ 3850 7250 +NoConn ~ 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7400 50 0000 C CNN +F 2 "" H 4550 7250 50 0001 C CNN +F 3 "" H 4550 7250 50 0001 C CNN + 1 4550 7250 + 1 0 0 -1 +$EndComp +Text Label 5250 5200 2 50 ~ 0 +TCK +Text Label 5250 5300 2 50 ~ 0 +TDO +Text Label 5250 5000 2 50 ~ 0 +TMS +Text Label 5250 5100 2 50 ~ 0 +TDI +$Comp +L power:GND #PWR0155 +U 1 1 5EDB5696 +P 700 2500 +F 0 "#PWR0155" H 700 2250 50 0001 C CNN +F 1 "GND" H 700 2350 50 0000 C CNN +F 2 "" H 700 2500 50 0001 C CNN +F 3 "" H 700 2500 50 0001 C CNN + 1 700 2500 + -1 0 0 -1 +$EndComp +Wire Wire Line + 700 2500 1000 2500 +$Comp +L Device:C_Small C5 +U 1 1 5F26439F +P 2050 6050 +F 0 "C5" H 2142 6096 50 0000 L CNN +F 1 "2u2" H 2142 6005 50 0000 L CNN +F 2 "stdpads:C_0603" H 2050 6050 50 0001 C CNN +F 3 "~" H 2050 6050 50 0001 C CNN + 1 2050 6050 + 1 0 0 -1 +$EndComp +$Comp +L Device:C_Small C4 +U 1 1 5F266E46 +P 2450 6050 +F 0 "C4" H 2542 6096 50 0000 L CNN +F 1 "10u" H 2542 6005 50 0000 L CNN +F 2 "stdpads:C_0805" H 2450 6050 50 0001 C CNN +F 3 "~" H 2450 6050 50 0001 C CNN + 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