X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=romdev;a=blobdiff_plain;f=emurom.sch;fp=emurom.sch;h=b0dc19cbda9faab262124864052bc87659e805d1;hp=0000000000000000000000000000000000000000;hb=ab4208125865af42eeaedde46afa79af706a8d64;hpb=1a6205c536ca621debc9948a3409c91ba327a145 diff --git a/emurom.sch b/emurom.sch new file mode 100644 index 0000000..b0dc19c --- /dev/null +++ b/emurom.sch @@ -0,0 +1,2119 @@ +EESchema Schematic File Version 4 +EELAYER 30 0 +EELAYER END +$Descr A4 11693 8268 +encoding utf-8 +Sheet 1 2 +Title "ROM development board" +Date "2020-05-18" +Rev "1" +Comp "" +Comment1 "" +Comment2 "" +Comment3 "License: Creative Commons Attribution Share-Alike (CC BY-SA)" +Comment4 "Copyright (C) 2020 John Tsiombikas " +$EndDescr +$Comp +L Connector:USB_B_Micro J2 +U 1 1 5EC163C7 +P 1600 5100 +F 0 "J2" H 1370 5089 50 0000 R CNN +F 1 "USB_B_Micro" H 1370 4998 50 0000 R CNN +F 2 "Connector_USB:USB_Micro-B_Molex-105017-0001" H 1750 5050 50 0001 C CNN +F 3 "~" H 1750 5050 50 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+Wire Wire Line + 7750 800 8000 800 +Connection ~ 8000 800 +Wire Wire Line + 8000 800 8250 800 +Connection ~ 8250 800 +Wire Wire Line + 8250 800 8500 800 +Connection ~ 8500 800 +Wire Wire Line + 8500 800 8750 800 +Connection ~ 8750 800 +Wire Wire Line + 8750 800 9000 800 +Wire Wire Line + 6850 1100 7000 1100 +Connection ~ 7000 1100 +Wire Wire Line + 7000 1100 7250 1100 +Connection ~ 7250 1100 +Wire Wire Line + 7250 1100 7500 1100 +Connection ~ 7500 1100 +Wire Wire Line + 7500 1100 7750 1100 +Connection ~ 7750 1100 +Wire Wire Line + 7750 1100 8000 1100 +Connection ~ 8000 1100 +Wire Wire Line + 8000 1100 8250 1100 +Connection ~ 8250 1100 +Wire Wire Line + 8250 1100 8500 1100 +Connection ~ 8500 1100 +Wire Wire Line + 8500 1100 8750 1100 +Connection ~ 8750 1100 +Wire Wire Line + 8750 1100 9000 1100 +Text Notes 7750 650 0 50 ~ 0 +bypass capacitors +NoConn ~ 1900 5300 +Text Label 2800 3050 0 50 ~ 0 +~SYSRST +$Comp +L Connector:Conn_01x01_Male J7 +U 1 1 60C37FAA +P 3150 2750 +F 0 "J7" V 3100 2700 50 0000 L CNN +F 1 "SYSRST" H 3150 2800 50 0000 L CNN +F 2 "Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical" H 3150 2750 50 0001 C CNN +F 3 "~" H 3150 2750 50 0001 C CNN + 1 3150 2750 + 0 1 1 0 +$EndComp +Wire Wire Line + 3150 3050 3150 2950 +Wire Wire Line + 2800 3050 3150 3050 +$Comp +L Device:R R3 +U 1 1 60D2872F +P 7200 5000 +F 0 "R3" V 7200 4750 50 0000 C CNN +F 1 "4K7" V 7200 5000 50 0000 C CNN +F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 7130 5000 50 0001 C CNN +F 3 "~" H 7200 5000 50 0001 C CNN + 1 7200 5000 + 0 -1 1 0 +$EndComp +Wire Wire Line + 6250 6450 6050 6450 +Wire Wire Line + 6050 6250 6400 6250 +Wire Wire Line + 6400 6250 6400 6850 +Entry Wire Line + 6650 4900 6750 5000 +Entry Wire Line + 6650 5000 6750 5100 +Entry Wire Line + 6650 5100 6750 5200 +Entry Wire Line + 6650 5200 6750 5300 +Wire Wire Line + 6750 5000 7050 5000 +Wire Wire Line + 6750 5100 7050 5100 +Wire Wire Line + 6750 5200 7050 5200 +Wire Wire Line + 6750 5300 7050 5300 +Text Label 6750 5000 0 50 ~ 0 +SYSA11 +Text Label 6750 5100 0 50 ~ 0 +SYSA12 +Text Label 6750 5200 0 50 ~ 0 +SYSA13 +Text Label 6750 5300 0 50 ~ 0 +SYSA14 +$Comp +L Device:R R4 +U 1 1 60E87D8E +P 7200 5100 +F 0 "R4" V 7200 4850 50 0000 C CNN +F 1 "4K7" V 7200 5100 50 0000 C CNN +F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 7130 5100 50 0001 C CNN +F 3 "~" H 7200 5100 50 0001 C CNN + 1 7200 5100 + 0 -1 1 0 +$EndComp +$Comp +L Device:R R5 +U 1 1 60E87FB4 +P 7200 5200 +F 0 "R5" V 7200 4950 50 0000 C CNN +F 1 "4K7" V 7200 5200 50 0000 C CNN +F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 7130 5200 50 0001 C CNN +F 3 "~" H 7200 5200 50 0001 C CNN + 1 7200 5200 + 0 -1 1 0 +$EndComp +$Comp +L Device:R R6 +U 1 1 60E8815F +P 7200 5300 +F 0 "R6" V 7200 5050 50 0000 C CNN +F 1 "4K7" V 7200 5300 50 0000 C CNN +F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 7130 5300 50 0001 C CNN +F 3 "~" H 7200 5300 50 0001 C CNN + 1 7200 5300 + 0 -1 1 0 +$EndComp +$Comp +L power:GND #PWR031 +U 1 1 60E8A6A5 +P 7350 5350 +F 0 "#PWR031" H 7350 5100 50 0001 C CNN +F 1 "GND" H 7350 5200 50 0000 C CNN +F 2 "" H 7350 5350 50 0001 C CNN +F 3 "" H 7350 5350 50 0001 C CNN + 1 7350 5350 + -1 0 0 -1 +$EndComp +Wire Wire Line + 7350 5350 7350 5300 +Connection ~ 7350 5100 +Wire Wire Line + 7350 5100 7350 5000 +Connection ~ 7350 5200 +Wire Wire Line + 7350 5200 7350 5100 +Connection ~ 7350 5300 +Wire Wire Line + 7350 5300 7350 5200 +NoConn ~ 2800 2950 +Connection ~ 3500 3350 +Wire Wire Line + 3500 3450 3500 3350 +Wire Wire Line + 3650 3450 3500 3450 +Wire Wire Line + 3500 1750 3500 1950 +Wire Wire Line + 3500 1650 3500 1750 +Connection ~ 3500 1750 +Wire Wire Line + 3650 1750 3500 1750 +Text Notes 1250 1200 0 50 ~ 0 +Note: firmware drives ~SS~ high when not in\nprogramming mode (PGM low) to avoid contention\nwhen the system drives the address bus. +$Comp +L Device:R R7 +U 1 1 60FC7770 +P 3350 2950 +F 0 "R7" H 3400 3100 50 0000 C CNN +F 1 "4K7" V 3350 2950 50 0000 C CNN +F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 3280 2950 50 0001 C CNN +F 3 "~" H 3350 2950 50 0001 C CNN + 1 3350 2950 + 1 0 0 1 +$EndComp +Wire Wire Line + 3350 3150 3350 3100 +Wire Wire Line + 2800 3150 3350 3150 +$Comp +L power:VCC #PWR032 +U 1 1 60FE6889 +P 3350 2800 +F 0 "#PWR032" H 3350 2650 50 0001 C CNN +F 1 "VCC" H 3350 2950 50 0000 C CNN +F 2 "" H 3350 2800 50 0001 C CNN +F 3 "" H 3350 2800 50 0001 C CNN + 1 3350 2800 + 1 0 0 -1 +$EndComp +Wire Wire Line + 3300 3550 2800 3550 +Wire Wire Line + 3350 3450 2800 3450 +Wire Wire Line + 3350 3450 3350 5200 +Wire Wire Line + 5550 6850 6400 6850 +Wire Wire Line + 6300 4850 6300 4750 +Connection ~ 6300 4750 +Wire Wire Line + 6050 6550 6050 6450 +Connection ~ 6050 6450 +Wire Wire Line + 6700 3050 6700 2950 +$Comp +L Diode:1N4148 D3 +U 1 1 5F8C7D7E +P 6250 3300 +F 0 "D3" V 6350 3150 50 0000 L CNN +F 1 "1N4148" H 6000 3200 50 0000 L CNN +F 2 "Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 6250 3125 50 0001 C CNN +F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 6250 3300 50 0001 C CNN + 1 6250 3300 + 0 1 1 0 +$EndComp +$Comp +L Diode:1N4148 D4 +U 1 1 5F89552F +P 6450 3300 +F 0 "D4" V 6550 3300 50 0000 L CNN +F 1 "1N4148" H 6200 3200 50 0000 L CNN +F 2 "Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 6450 3125 50 0001 C CNN +F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 6450 3300 50 0001 C CNN + 1 6450 3300 + 0 1 1 0 +$EndComp +Connection ~ 6700 3050 +Text Label 6550 3550 0 50 ~ 0 +~SYSCS +Text Label 6550 3650 0 50 ~ 0 +~SYSOE +Wire Wire Line + 6800 3550 6450 3550 +Wire Wire Line + 6450 3550 6450 3450 +Wire Wire Line + 6800 3650 6250 3650 +Wire Wire Line + 6250 3650 6250 3450 +Wire Wire Line + 6250 3150 6250 3050 +Wire Wire Line + 6250 3050 6450 3050 +Wire Wire Line + 6450 3150 6450 3050 +Connection ~ 6450 3050 +Wire Wire Line + 6450 3050 6700 3050 +Wire Wire Line + 6700 3350 6700 3050 +$Comp +L Device:R R8 +U 1 1 5FB4A123 +P 6950 3350 +F 0 "R8" V 7050 3350 50 0000 C CNN +F 1 "4K7" V 6950 3350 50 0000 C CNN +F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 6880 3350 50 0001 C CNN +F 3 "~" H 6950 3350 50 0001 C CNN + 1 6950 3350 + 0 -1 1 0 +$EndComp +Wire Wire Line + 6800 3350 6700 3350 +Wire Wire Line + 7100 3350 7200 3350 +Wire Bus Line + 8100 1500 8100 2650 +Wire Bus Line + 3250 650 3250 4250 +Wire Bus Line + 6400 650 6400 2650 +Wire Bus Line + 10350 1500 10350 4900 +Wire Bus Line + 6650 3950 6650 6450 +Wire Bus Line + 8650 2100 8650 6450 +Wire Bus Line + 4750 1250 4750 6150 +Connection ~ 7200 3350 +$EndSCHEMATC