Implement review comments

2020-10-18 12:06:17 +02:00 · 2020-10-18 12:06:17 +02:00 · 2e6a89f900
commit 2e6a89f900
parent 00f02c779f
4 changed files with 1494 additions and 1001 deletions
--- a/kicad/cpu.sch
+++ b/kicad/cpu.sch
@ -16,65 +16,24 @@ $EndDescr
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 |/!\ These pins have\n|limited capabilities.\n|
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+	5200 5300 5650 5300
 $Comp
 L power:GND #PWR?
 U 1 1 5F8DE84D
-P 3650 5400
-F 0 "#PWR?" H 3650 5150 50  0001 C CNN
-F 1 "GND" H 3655 5227 50  0000 C CNN
-F 2 "" H 3650 5400 50  0001 C CNN
-F 3 "" H 3650 5400 50  0001 C CNN
-	1    3650 5400
+P 4050 5400
+F 0 "#PWR?" H 4050 5150 50  0001 C CNN
+F 1 "GND" H 4055 5227 50  0000 C CNN
+F 2 "" H 4050 5400 50  0001 C CNN
+F 3 "" H 4050 5400 50  0001 C CNN
+	1    4050 5400
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	3650 5400 3650 5300
+	4050 5400 4050 5300
 Wire Wire Line
-	3650 5300 3750 5300
-Text HLabel 7150 4400 2    50   Input ~ 0
+	4050 5300 4150 5300
+Text HLabel 7550 4400 2    50   Input ~ 0
 WS0_RX
 Wire Wire Line
-	6550 4400 7150 4400
-Text Notes 6550 4400 0    50   ~ 0
+	6950 4400 7550 4400
+Text Notes 6950 4400 0    50   ~ 0
 :SPI1_MISO
-Text HLabel 7150 5000 2    50   Input ~ 0
+Text HLabel 7550 5000 2    50   Input ~ 0
 WS1_RX
 Wire Wire Line
-	6550 5000 7150 5000
-Text Notes 6550 5000 0    50   ~ 0
+	6950 5000 7550 5000
+Text Notes 6950 5000 0    50   ~ 0
 :SPI5_MISO
 Wire Wire Line
-	5250 4600 4800 4600
+	5650 4600 5200 4600
 Wire Wire Line
-	5250 4700 4800 4700
-Text Notes 5250 4600 2    50   ~ 0
+	5650 4700 5200 4700
+Text Notes 5650 4600 2    50   ~ 0
 USART1_TX:
-Text Notes 5250 4700 2    50   ~ 0
+Text Notes 5650 4700 2    50   ~ 0
 USART1_RX:
-Text HLabel 4800 4700 0    50   Input ~ 0
+Text HLabel 5200 4700 0    50   Input ~ 0
 CONTROL_UART_IN
-Text HLabel 4800 4600 0    50   Output ~ 0
+Text HLabel 5200 4600 0    50   Output ~ 0
 CONTROL_UART_OUT
-Text Notes 5250 5300 2    50   ~ 0
+Text Notes 5650 5300 2    50   ~ 0
 TIM1_CH1N:
-Text Notes 5250 5200 2    50   ~ 0
+Text Notes 5650 5200 2    50   ~ 0
 TIM1_CH2N:
-Text Notes 5250 5100 2    50   ~ 0
+Text Notes 5650 5100 2    50   ~ 0
 TIM1_CH3N:
 $Comp
 L Device:LED_ARGB D?
 U 1 1 5F8154E7
-P 3950 5300
-F 0 "D?" H 3950 4833 50  0000 C CNN
-F 1 "LED_ARGB" H 3950 4924 50  0000 C CNN
-F 2 "" H 3950 5250 50  0001 C CNN
-F 3 "~" H 3950 5250 50  0001 C CNN
-	1    3950 5300
+P 4350 5300
+F 0 "D?" H 4350 4833 50  0000 C CNN
+F 1 "LED_ARGB" H 4350 4924 50  0000 C CNN
+F 2 "" H 4350 5250 50  0001 C CNN
+F 3 "~" H 4350 5250 50  0001 C CNN
+	1    4350 5300
 	-1   0    0    1   
 $EndComp
-Text HLabel 4800 4800 0    50   Input ~ 0
+Text HLabel 5200 4800 0    50   Input ~ 0
 CONTROL_UART_RST
 Wire Wire Line
-	4800 4800 5250 4800
+	5200 4800 5650 4800
 $Comp
 L Connector:Conn_ARM_JTAG_SWD_10 J?
 U 1 1 5F908B18
@ -577,51 +560,155 @@ F 3 "" H 1600 4300 50  0001 C CNN
 	1    1600 4300
 	1    0    0    -1  
 $EndComp
-Text Notes 4800 4400 2    50   ~ 0
-Not used:
 Wire Wire Line
-	6550 4200 7150 4200
+	6950 4200 7550 4200
 Wire Wire Line
-	6550 4300 7150 4300
-Text HLabel 7150 4200 2    50   Input ~ 0
+	6950 4300 7550 4300
+Text HLabel 7550 4200 2    50   Input ~ 0
 AUDIO_L
-Text HLabel 7150 4300 2    50   Input ~ 0
+Text HLabel 7550 4300 2    50   Input ~ 0
 AUDIO_R
-Text Notes 6550 4200 0    50   ~ 0
+Text Notes 6950 4200 0    50   ~ 0
 :ADC1_4
-Text Notes 6550 4300 0    50   ~ 0
+Text Notes 6950 4300 0    50   ~ 0
 :ADC1_5
+NoConn ~ 6950 4900
+NoConn ~ 5650 5000
+NoConn ~ 5650 4900
+NoConn ~ 5650 4500
+NoConn ~ 5650 4200
+NoConn ~ 5650 4100
+NoConn ~ 5650 4000
 $Comp
-L Connector:TestPoint TP?
-U 1 1 5F7A98FC
-P 7050 4600
-F 0 "TP?" V 7050 4800 50  0000 L CNN
-F 1 "PA8" V 7000 4550 50  0000 L CNN
-F 2 "" H 7250 4600 50  0001 C CNN
-F 3 "~" H 7250 4600 50  0001 C CNN
-	1    7050 4600
-	0    1    1    0   
+L Connector:Conn_01x04_Male J?
+U 1 1 5F8C85D1
+P 8450 4700
+F 0 "J?" H 8422 4582 50  0000 R CNN
+F 1 "GPIO" H 8422 4673 50  0000 R CNN
+F 2 "" H 8450 4700 50  0001 C CNN
+F 3 "~" H 8450 4700 50  0001 C CNN
+	1    8450 4700
+	-1   0    0    1   
 $EndComp
 Wire Wire Line
-	7050 4600 6550 4600
+	8250 4500 8150 4500
 Wire Wire Line
-	7050 4700 6550 4700
+	8150 4500 8150 4400
+Wire Wire Line
+	8250 4800 8150 4800
+Wire Wire Line
+	8150 4800 8150 4900
+$Comp
+L power:GND #PWR?
+U 1 1 5F8D04E3
+P 8150 4900
+F 0 "#PWR?" H 8150 4650 50  0001 C CNN
+F 1 "GND" H 8155 4727 50  0000 C CNN
+F 2 "" H 8150 4900 50  0001 C CNN
+F 3 "" H 8150 4900 50  0001 C CNN
+	1    8150 4900
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:+3V3 #PWR?
+U 1 1 5F8D0EE5
+P 8150 4400
+F 0 "#PWR?" H 8150 4250 50  0001 C CNN
+F 1 "+3V3" H 8165 4573 50  0000 C CNN
+F 2 "" H 8150 4400 50  0001 C CNN
+F 3 "" H 8150 4400 50  0001 C CNN
+	1    8150 4400
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6950 4600 8250 4600
+Wire Wire Line
+	6950 4700 8250 4700
+$Comp
+L Device:C C?
+U 1 1 5F8D70AA
+P 1450 1800
+F 0 "C?" H 1335 1754 50  0000 R CNN
+F 1 "100n" H 1335 1845 50  0000 R CNN
+F 2 "" H 1488 1650 50  0001 C CNN
+F 3 "~" H 1450 1800 50  0001 C CNN
+	1    1450 1800
+	1    0    0    1   
+$EndComp
+Wire Wire Line
+	1450 1950 1450 2050
+Wire Wire Line
+	1450 2050 1650 2050
+Connection ~ 1650 2050
+Wire Wire Line
+	1650 2050 1650 2100
+Wire Wire Line
+	1450 1650 1450 1500
+Wire Wire Line
+	1450 1500 1650 1500
+Connection ~ 1650 1500
 $Comp
 L Connector:TestPoint TP?
-U 1 1 5F7AF4B9
-P 7050 4700
-F 0 "TP?" V 7050 4900 50  0000 L CNN
-F 1 "PA9" V 7000 4650 50  0000 L CNN
-F 2 "" H 7250 4700 50  0001 C CNN
-F 3 "~" H 7250 4700 50  0001 C CNN
-	1    7050 4700
+U 1 1 5FBCAC5C
+P 5200 4400
+F 0 "TP?" V 5150 4400 50  0000 C CNN
+F 1 "JTRST_N" V 5200 4750 50  0000 C CNN
+F 2 "" H 5400 4400 50  0001 C CNN
+F 3 "~" H 5400 4400 50  0001 C CNN
+	1    5200 4400
+	0    -1   -1   0   
+$EndComp
+Text Label 5200 4400 0    50   ~ 0
+JTRST_N
+Text Label 5650 3300 2    50   ~ 0
+XTAL0
+Text Label 5650 3400 2    50   ~ 0
+XTAL1
+Text Label 8250 4600 2    50   ~ 0
+PA8
+Text Label 8250 4700 2    50   ~ 0
+PA9
+$Comp
+L power:PWR_FLAG #FLG?
+U 1 1 5FBFD7EA
+P 5600 3100
+F 0 "#FLG?" H 5600 3175 50  0001 C CNN
+F 1 "PWR_FLAG" H 5600 3273 50  0001 C CNN
+F 2 "" H 5600 3100 50  0001 C CNN
+F 3 "~" H 5600 3100 50  0001 C CNN
+	1    5600 3100
+	-1   0    0    1   
+$EndComp
+Connection ~ 5600 3100
+Wire Wire Line
+	5600 3100 5650 3100
+Wire Wire Line
+	4650 3000 5250 3000
+Wire Wire Line
+	5600 3000 5650 3000
+Wire Wire Line
+	5550 3000 5600 3000
+Connection ~ 5600 3000
+$Comp
+L power:PWR_FLAG #FLG?
+U 1 1 5FBFCF4E
+P 5600 3000
+F 0 "#FLG?" H 5600 3075 50  0001 C CNN
+F 1 "PWR_FLAG" H 5600 3173 50  0001 C CNN
+F 2 "" H 5600 3000 50  0001 C CNN
+F 3 "~" H 5600 3000 50  0001 C CNN
+	1    5600 3000
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:R R?
+U 1 1 5F86FB1A
+P 5400 3000
+F 0 "R?" V 5300 3000 50  0000 C CNN
+F 1 "0" V 5400 3000 50  0000 C CNN
+F 2 "" V 5330 3000 50  0001 C CNN
+F 3 "~" H 5400 3000 50  0001 C CNN
+	1    5400 3000
 	0    1    1    0   
 $EndComp
-NoConn ~ 6550 4900
-NoConn ~ 5250 5000
-NoConn ~ 5250 4900
-NoConn ~ 5250 4500
-NoConn ~ 5250 4200
-NoConn ~ 5250 4100
-NoConn ~ 5250 4000
 $EndSCHEMATC
--- a/kicad/io.sch
+++ b/kicad/io.sch
--- a/kicad/power.sch
+++ b/kicad/power.sch
@ -16,107 +16,107 @@ $EndDescr
 $Comp
 L Regulator_Linear:AP1117-33 U?
 U 1 1 5F7D344F
-P 1700 1050
+P 1750 2700
 AR Path="/5F7D344F" Ref="U?"  Part="1" 
 AR Path="/5F7CBB94/5F7D344F" Ref="U?"  Part="1" 
-F 0 "U?" H 1700 1292 50  0000 C CNN
-F 1 "AP1117-33" H 1700 1201 50  0000 C CNN
-F 2 "Package_TO_SOT_SMD:SOT-223-3_TabPin2" H 1700 1250 50  0001 C CNN
-F 3 "http://www.diodes.com/datasheets/AP1117.pdf" H 1800 800 50  0001 C CNN
-	1    1700 1050
+F 0 "U?" H 1750 2942 50  0000 C CNN
+F 1 "AP1117-33" H 1750 2851 50  0000 C CNN
+F 2 "Package_TO_SOT_SMD:SOT-223-3_TabPin2" H 1750 2900 50  0001 C CNN
+F 3 "http://www.diodes.com/datasheets/AP1117.pdf" H 1850 2450 50  0001 C CNN
+	1    1750 2700
 	1    0    0    -1  
 $EndComp
 $Comp
 L Device:C C?
 U 1 1 5F7D3455
-P 1200 1300
+P 1250 2950
 AR Path="/5F7D3455" Ref="C?"  Part="1" 
 AR Path="/5F7CBB94/5F7D3455" Ref="C?"  Part="1" 
-F 0 "C?" H 1315 1346 50  0000 L CNN
-F 1 "100n" H 1315 1255 50  0000 L CNN
-F 2 "" H 1238 1150 50  0001 C CNN
-F 3 "~" H 1200 1300 50  0001 C CNN
-	1    1200 1300
+F 0 "C?" H 1365 2996 50  0000 L CNN
+F 1 "100n" H 1365 2905 50  0000 L CNN
+F 2 "" H 1288 2800 50  0001 C CNN
+F 3 "~" H 1250 2950 50  0001 C CNN
+	1    1250 2950
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	2200 1150 2200 1050
+	2250 2800 2250 2700
 Wire Wire Line
-	2200 1050 2000 1050
+	2250 2700 2050 2700
 Wire Wire Line
-	1400 1050 1200 1050
+	1450 2700 1250 2700
 Wire Wire Line
-	1200 1050 1200 1150
+	1250 2700 1250 2800
 Wire Wire Line
-	1200 1450 1200 1550
+	1250 3100 1250 3200
 Wire Wire Line
-	1200 1550 1700 1550
+	1250 3200 1750 3200
 Wire Wire Line
-	1700 1350 1700 1550
-Connection ~ 1700 1550
+	1750 3000 1750 3200
+Connection ~ 1750 3200
 Wire Wire Line
-	1700 1550 2200 1550
+	1750 3200 2250 3200
 $Comp
 L power:GND #PWR?
 U 1 1 5F7D346A
-P 1700 1650
+P 1750 3300
 AR Path="/5F7D346A" Ref="#PWR?"  Part="1" 
 AR Path="/5F7CBB94/5F7D346A" Ref="#PWR?"  Part="1" 
-F 0 "#PWR?" H 1700 1400 50  0001 C CNN
-F 1 "GND" H 1705 1477 50  0000 C CNN
-F 2 "" H 1700 1650 50  0001 C CNN
-F 3 "" H 1700 1650 50  0001 C CNN
-	1    1700 1650
+F 0 "#PWR?" H 1750 3050 50  0001 C CNN
+F 1 "GND" H 1755 3127 50  0000 C CNN
+F 2 "" H 1750 3300 50  0001 C CNN
+F 3 "" H 1750 3300 50  0001 C CNN
+	1    1750 3300
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	1700 1650 1700 1550
+	1750 3300 1750 3200
 Wire Wire Line
-	750  1050 750  950 
-Connection ~ 1200 1050
+	800  2700 800  2600
+Connection ~ 1250 2700
 $Comp
 L Device:Battery_Cell BT?
 U 1 1 5F7D3481
-P 1700 2600
+P 1750 4350
 AR Path="/5F7D3481" Ref="BT?"  Part="1" 
 AR Path="/5F7CBB94/5F7D3481" Ref="BT?"  Part="1" 
-F 0 "BT?" H 1818 2696 50  0000 L CNN
-F 1 "CR2032" H 1818 2605 50  0000 L CNN
-F 2 "" V 1700 2660 50  0001 C CNN
-F 3 "~" V 1700 2660 50  0001 C CNN
-	1    1700 2600
+F 0 "BT?" H 1868 4446 50  0000 L CNN
+F 1 "CR2032" H 1868 4355 50  0000 L CNN
+F 2 "" V 1750 4410 50  0001 C CNN
+F 3 "~" V 1750 4410 50  0001 C CNN
+	1    1750 4350
 	1    0    0    -1  
 $EndComp
 $Comp
 L power:+BATT #PWR?
 U 1 1 5F7D3487
-P 1700 2300
+P 1750 3900
 AR Path="/5F7D3487" Ref="#PWR?"  Part="1" 
 AR Path="/5F7CBB94/5F7D3487" Ref="#PWR?"  Part="1" 
-F 0 "#PWR?" H 1700 2150 50  0001 C CNN
-F 1 "+BATT" H 1715 2473 50  0000 C CNN
-F 2 "" H 1700 2300 50  0001 C CNN
-F 3 "" H 1700 2300 50  0001 C CNN
-	1    1700 2300
+F 0 "#PWR?" H 1750 3750 50  0001 C CNN
+F 1 "+BATT" H 1765 4073 50  0000 C CNN
+F 2 "" H 1750 3900 50  0001 C CNN
+F 3 "" H 1750 3900 50  0001 C CNN
+	1    1750 3900
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	1700 2300 1700 2400
+	1750 3900 1750 4000
 $Comp
 L power:GND #PWR?
 U 1 1 5F7D348E
-P 1700 2800
+P 1750 4550
 AR Path="/5F7D348E" Ref="#PWR?"  Part="1" 
 AR Path="/5F7CBB94/5F7D348E" Ref="#PWR?"  Part="1" 
-F 0 "#PWR?" H 1700 2550 50  0001 C CNN
-F 1 "GND" H 1705 2627 50  0000 C CNN
-F 2 "" H 1700 2800 50  0001 C CNN
-F 3 "" H 1700 2800 50  0001 C CNN
-	1    1700 2800
+F 0 "#PWR?" H 1750 4300 50  0001 C CNN
+F 1 "GND" H 1755 4377 50  0000 C CNN
+F 2 "" H 1750 4550 50  0001 C CNN
+F 3 "" H 1750 4550 50  0001 C CNN
+	1    1750 4550
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	1700 2800 1700 2700
+	1750 4550 1750 4450
 $Comp
 L Device:C C?
 U 1 1 5F7D3495
@ -163,33 +163,33 @@ Wire Wire Line
 $Comp
 L power:+3V3 #PWR?
 U 1 1 5F7D34A9
-P 1200 3450
+P 1250 5150
 AR Path="/5F7D34A9" Ref="#PWR?"  Part="1" 
 AR Path="/5F7CBB94/5F7D34A9" Ref="#PWR?"  Part="1" 
-F 0 "#PWR?" H 1200 3300 50  0001 C CNN
-F 1 "+3V3" H 1215 3623 50  0000 C CNN
-F 2 "" H 1200 3450 50  0001 C CNN
-F 3 "" H 1200 3450 50  0001 C CNN
-	1    1200 3450
+F 0 "#PWR?" H 1250 5000 50  0001 C CNN
+F 1 "+3V3" H 1265 5323 50  0000 C CNN
+F 2 "" H 1250 5150 50  0001 C CNN
+F 3 "" H 1250 5150 50  0001 C CNN
+	1    1250 5150
 	1    0    0    -1  
 $EndComp
 $Comp
 L Device:R R?
 U 1 1 5F7D34AF
-P 1450 3550
+P 1500 5250
 AR Path="/5F7D34AF" Ref="R?"  Part="1" 
 AR Path="/5F7CBB94/5F7D34AF" Ref="R?"  Part="1" 
-F 0 "R?" V 1243 3550 50  0000 C CNN
-F 1 "0" V 1334 3550 50  0000 C CNN
-F 2 "" V 1380 3550 50  0001 C CNN
-F 3 "~" H 1450 3550 50  0001 C CNN
-	1    1450 3550
+F 0 "R?" V 1293 5250 50  0000 C CNN
+F 1 "0" V 1384 5250 50  0000 C CNN
+F 2 "" V 1430 5250 50  0001 C CNN
+F 3 "~" H 1500 5250 50  0001 C CNN
+	1    1500 5250
 	0    1    1    0   
 $EndComp
 Wire Wire Line
-	1300 3550 1200 3550
+	1350 5250 1250 5250
 Wire Wire Line
-	1200 3550 1200 3450
+	1250 5250 1250 5150
 $Comp
 L Device:C C?
 U 1 1 5F7D34BF
@ -243,7 +243,7 @@ F 3 "~" H 4350 1400 50  0001 C CNN
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	2200 1550 2200 1450
+	2250 3200 2250 3100
 Wire Wire Line
 	4350 1550 4350 1650
 Wire Wire Line
@ -263,26 +263,26 @@ Connection ~ 3950 1150
 $Comp
 L Device:C C?
 U 1 1 5F7D34EF
-P 1700 3800
+P 1750 5500
 AR Path="/5F7D34EF" Ref="C?"  Part="1" 
 AR Path="/5F7CBB94/5F7D34EF" Ref="C?"  Part="1" 
-F 0 "C?" H 1815 3846 50  0000 L CNN
-F 1 "1u" H 1815 3755 50  0000 L CNN
-F 2 "" H 1738 3650 50  0001 C CNN
-F 3 "~" H 1700 3800 50  0001 C CNN
-	1    1700 3800
+F 0 "C?" H 1865 5546 50  0000 L CNN
+F 1 "1u" H 1865 5455 50  0000 L CNN
+F 2 "" H 1788 5350 50  0001 C CNN
+F 3 "~" H 1750 5500 50  0001 C CNN
+	1    1750 5500
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	1200 1550 750  1550
+	1250 3200 800  3200
 Wire Wire Line
-	750  1550 750  1450
-Connection ~ 1200 1550
+	800  3200 800  3100
+Connection ~ 1250 3200
 Wire Wire Line
-	750  1150 750  1050
+	800  2800 800  2700
 Wire Wire Line
-	750  1050 1200 1050
-Connection ~ 750  1050
+	800  2700 1250 2700
+Connection ~ 800  2700
 Wire Wire Line
 	3950 1050 3950 1150
 $Comp
@ -301,14 +301,14 @@ $EndComp
 $Comp
 L Device:C C?
 U 1 1 5F7D345B
-P 2600 1300
+P 2650 2950
 AR Path="/5F7D345B" Ref="C?"  Part="1" 
 AR Path="/5F7CBB94/5F7D345B" Ref="C?"  Part="1" 
-F 0 "C?" H 2715 1346 50  0000 L CNN
-F 1 "100n" H 2715 1255 50  0000 L CNN
-F 2 "" H 2638 1150 50  0001 C CNN
-F 3 "~" H 2600 1300 50  0001 C CNN
-	1    2600 1300
+F 0 "C?" H 2765 2996 50  0000 L CNN
+F 1 "100n" H 2765 2905 50  0000 L CNN
+F 2 "" H 2688 2800 50  0001 C CNN
+F 3 "~" H 2650 2950 50  0001 C CNN
+	1    2650 2950
 	1    0    0    -1  
 $EndComp
 $Comp
@ -331,35 +331,35 @@ Wire Wire Line
 $Comp
 L Device:CP C?
 U 1 1 5F7E4819
-P 750 1300
-F 0 "C?" H 868 1346 50  0000 L CNN
-F 1 "4.7u" H 868 1255 50  0000 L CNN
-F 2 "" H 788 1150 50  0001 C CNN
-F 3 "~" H 750 1300 50  0001 C CNN
-	1    750  1300
+P 800 2950
+F 0 "C?" H 918 2996 50  0000 L CNN
+F 1 "4.7u" H 918 2905 50  0000 L CNN
+F 2 "" H 838 2800 50  0001 C CNN
+F 3 "~" H 800 2950 50  0001 C CNN
+	1    800  2950
 	1    0    0    -1  
 $EndComp
 $Comp
 L Device:CP C?
 U 1 1 5F7E48E5
-P 2200 1300
-F 0 "C?" H 2318 1346 50  0000 L CNN
-F 1 "4.7u" H 2318 1255 50  0000 L CNN
-F 2 "" H 2238 1150 50  0001 C CNN
-F 3 "~" H 2200 1300 50  0001 C CNN
-	1    2200 1300
+P 2250 2950
+F 0 "C?" H 2368 2996 50  0000 L CNN
+F 1 "4.7u" H 2368 2905 50  0000 L CNN
+F 2 "" H 2288 2800 50  0001 C CNN
+F 3 "~" H 2250 2950 50  0001 C CNN
+	1    2250 2950
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	2600 1450 2600 1550
+	2650 3100 2650 3200
 Wire Wire Line
-	2600 1550 2200 1550
-Connection ~ 2200 1550
+	2650 3200 2250 3200
+Connection ~ 2250 3200
 Wire Wire Line
-	2200 1050 2600 1050
+	2250 2700 2650 2700
 Wire Wire Line
-	2600 1050 2600 1150
-Connection ~ 2200 1050
+	2650 2700 2650 2800
+Connection ~ 2250 2700
 Wire Wire Line
 	3950 1150 4350 1150
 $Comp
@ -397,38 +397,38 @@ Place close to STM32F4
 $Comp
 L power:VDDA #PWR?
 U 1 1 5F7FD193
-P 1700 3450
+P 1750 5150
 AR Path="/5F7FD193" Ref="#PWR?"  Part="1" 
 AR Path="/5F7CBB94/5F7FD193" Ref="#PWR?"  Part="1" 
-F 0 "#PWR?" H 1700 3300 50  0001 C CNN
-F 1 "VDDA" H 1717 3623 50  0000 C CNN
-F 2 "" H 1700 3450 50  0001 C CNN
-F 3 "" H 1700 3450 50  0001 C CNN
-	1    1700 3450
+F 0 "#PWR?" H 1750 5000 50  0001 C CNN
+F 1 "VDDA" H 1767 5323 50  0000 C CNN
+F 2 "" H 1750 5150 50  0001 C CNN
+F 3 "" H 1750 5150 50  0001 C CNN
+	1    1750 5150
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	1700 3450 1700 3550
+	1750 5150 1750 5250
 Wire Wire Line
-	1700 3550 1600 3550
+	1750 5250 1650 5250
 Wire Notes Line
 	5600 2000 5600 650 
 Wire Wire Line
-	1700 3650 1700 3550
-Connection ~ 1700 3550
+	1750 5350 1750 5250
+Connection ~ 1750 5250
 Wire Wire Line
-	1700 3950 1700 4050
+	1750 5650 1750 5750
 $Comp
 L power:GND #PWR?
 U 1 1 5F81C5B3
-P 1700 4050
+P 1750 5750
 AR Path="/5F81C5B3" Ref="#PWR?"  Part="1" 
 AR Path="/5F7CBB94/5F81C5B3" Ref="#PWR?"  Part="1" 
-F 0 "#PWR?" H 1700 3800 50  0001 C CNN
-F 1 "GND" H 1705 3877 50  0000 C CNN
-F 2 "" H 1700 4050 50  0001 C CNN
-F 3 "" H 1700 4050 50  0001 C CNN
-	1    1700 4050
+F 0 "#PWR?" H 1750 5500 50  0001 C CNN
+F 1 "GND" H 1755 5577 50  0000 C CNN
+F 2 "" H 1750 5750 50  0001 C CNN
+F 3 "" H 1750 5750 50  0001 C CNN
+	1    1750 5750
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
@ -438,19 +438,19 @@ Wire Wire Line
 $Comp
 L power:+3V3 #PWR?
 U 1 1 5F82C428
-P 2600 950
+P 2650 2600
 AR Path="/5F82C428" Ref="#PWR?"  Part="1" 
 AR Path="/5F7CBB94/5F82C428" Ref="#PWR?"  Part="1" 
-F 0 "#PWR?" H 2600 800 50  0001 C CNN
-F 1 "+3V3" H 2615 1123 50  0000 C CNN
-F 2 "" H 2600 950 50  0001 C CNN
-F 3 "" H 2600 950 50  0001 C CNN
-	1    2600 950 
+F 0 "#PWR?" H 2650 2450 50  0001 C CNN
+F 1 "+3V3" H 2665 2773 50  0000 C CNN
+F 2 "" H 2650 2600 50  0001 C CNN
+F 3 "" H 2650 2600 50  0001 C CNN
+	1    2650 2600
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	2600 950  2600 1050
-Connection ~ 2600 1050
+	2650 2600 2650 2700
+Connection ~ 2650 2700
 $Comp
 L Device:C C?
 U 1 1 5F90151D
@ -496,21 +496,211 @@ Wire Wire Line
 	5850 1550 5850 1750
 Wire Notes Line
 	6200 2000 6200 650 
-Wire Notes Line
-	3400 2000 6200 2000
-Wire Notes Line
-	3400 650  6200 650 
 Text Notes 5700 850  0    50   ~ 0
 Place close\nto CH340
 $Comp
 L power:+5V #PWR?
 U 1 1 5F924E38
-P 750 950
-F 0 "#PWR?" H 750 800 50  0001 C CNN
-F 1 "+5V" H 765 1123 50  0000 C CNN
-F 2 "" H 750 950 50  0001 C CNN
-F 3 "" H 750 950 50  0001 C CNN
-	1    750  950 
+P 800 2600
+F 0 "#PWR?" H 800 2450 50  0001 C CNN
+F 1 "+5V" H 815 2773 50  0000 C CNN
+F 2 "" H 800 2600 50  0001 C CNN
+F 3 "" H 800 2600 50  0001 C CNN
+	1    800  2600
 	1    0    0    -1  
 $EndComp
+$Comp
+L Device:C C?
+U 1 1 5F8C1E0D
+P 6400 1400
+AR Path="/5F8C1E0D" Ref="C?"  Part="1" 
+AR Path="/5F7CBB94/5F8C1E0D" Ref="C?"  Part="1" 
+F 0 "C?" H 6515 1446 50  0000 L CNN
+F 1 "100n" H 6515 1355 50  0000 L CNN
+F 2 "" H 6438 1250 50  0001 C CNN
+F 3 "~" H 6400 1400 50  0001 C CNN
+	1    6400 1400
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:+3V3 #PWR?
+U 1 1 5F8C2045
+P 6400 1050
+AR Path="/5F8C2045" Ref="#PWR?"  Part="1" 
+AR Path="/5F7CBB94/5F8C2045" Ref="#PWR?"  Part="1" 
+F 0 "#PWR?" H 6400 900 50  0001 C CNN
+F 1 "+3V3" H 6415 1223 50  0000 C CNN
+F 2 "" H 6400 1050 50  0001 C CNN
+F 3 "" H 6400 1050 50  0001 C CNN
+	1    6400 1050
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR?
+U 1 1 5F8C204F
+P 6400 1750
+AR Path="/5F8C204F" Ref="#PWR?"  Part="1" 
+AR Path="/5F7CBB94/5F8C204F" Ref="#PWR?"  Part="1" 
+F 0 "#PWR?" H 6400 1500 50  0001 C CNN
+F 1 "GND" H 6405 1577 50  0000 C CNN
+F 2 "" H 6400 1750 50  0001 C CNN
+F 3 "" H 6400 1750 50  0001 C CNN
+	1    6400 1750
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6400 1050 6400 1250
+Wire Wire Line
+	6400 1550 6400 1750
+Wire Notes Line
+	6750 2000 6750 650 
+Text Notes 6250 850  0    50   ~ 0
+Place close\nto CH340
+Wire Notes Line
+	3400 2000 6750 2000
+Wire Notes Line
+	3400 650  6750 650 
+$Comp
+L Device:D_Schottky D?
+U 1 1 5FA5A321
+P 1250 1600
+AR Path="/5F8467A7/5FA5A321" Ref="D?"  Part="1" 
+AR Path="/5F7CBB94/5FA5A321" Ref="D?"  Part="1" 
+F 0 "D?" H 1250 1384 50  0000 C CNN
+F 1 "Schottky" H 1250 1475 50  0000 C CNN
+F 2 "" H 1250 1600 50  0001 C CNN
+F 3 "~" H 1250 1600 50  0001 C CNN
+	1    1250 1600
+	-1   0    0    1   
+$EndComp
+$Comp
+L Device:Fuse F?
+U 1 1 5FA5A327
+P 1300 1200
+AR Path="/5F8467A7/5FA5A327" Ref="F?"  Part="1" 
+AR Path="/5F7CBB94/5FA5A327" Ref="F?"  Part="1" 
+F 0 "F?" V 1103 1200 50  0000 C CNN
+F 1 "2A" V 1194 1200 50  0000 C CNN
+F 2 "" V 1230 1200 50  0001 C CNN
+F 3 "~" H 1300 1200 50  0001 C CNN
+	1    1300 1200
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	1450 1200 1550 1200
+$Comp
+L power:VBUS #PWR?
+U 1 1 5FA5A335
+P 1000 1500
+AR Path="/5F8467A7/5FA5A335" Ref="#PWR?"  Part="1" 
+AR Path="/5F7CBB94/5FA5A335" Ref="#PWR?"  Part="1" 
+F 0 "#PWR?" H 1000 1350 50  0001 C CNN
+F 1 "VBUS" H 1015 1673 50  0000 C CNN
+F 2 "" H 1000 1500 50  0001 C CNN
+F 3 "" H 1000 1500 50  0001 C CNN
+	1    1000 1500
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	1000 1500 1000 1600
+Wire Wire Line
+	1000 1600 1100 1600
+$Comp
+L Device:D_Zener D?
+U 1 1 5FA5A33D
+P 1750 1650
+AR Path="/5F8467A7/5FA5A33D" Ref="D?"  Part="1" 
+AR Path="/5F7CBB94/5FA5A33D" Ref="D?"  Part="1" 
+F 0 "D?" V 1659 1729 50  0000 L CNN
+F 1 "5.6V" V 1750 1729 50  0000 L CNN
+F 2 "" H 1750 1650 50  0001 C CNN
+F 3 "~" H 1750 1650 50  0001 C CNN
+F 4 "OVP" V 1841 1729 50  0000 L CNN "Comment"
+	1    1750 1650
+	0    1    1    0   
+$EndComp
+$Comp
+L power:GND #PWR?
+U 1 1 5FA5A344
+P 1750 1900
+AR Path="/5F8467A7/5FA5A344" Ref="#PWR?"  Part="1" 
+AR Path="/5F7CBB94/5FA5A344" Ref="#PWR?"  Part="1" 
+F 0 "#PWR?" H 1750 1650 50  0001 C CNN
+F 1 "GND" H 1755 1727 50  0000 C CNN
+F 2 "" H 1750 1900 50  0001 C CNN
+F 3 "" H 1750 1900 50  0001 C CNN
+	1    1750 1900
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	1750 1900 1750 1800
+Text GLabel 1000 1100 1    50   Input ~ 0
+VIN
+Wire Wire Line
+	1000 1100 1000 1200
+Wire Wire Line
+	1000 1200 1150 1200
+Wire Wire Line
+	1400 1600 1550 1600
+Wire Wire Line
+	1550 1600 1550 1400
+Wire Wire Line
+	1750 1500 1750 1400
+Connection ~ 1550 1400
+Wire Wire Line
+	1550 1400 1550 1200
+$Comp
+L power:+5V #PWR?
+U 1 1 5FA5A32F
+P 1750 1050
+AR Path="/5F8467A7/5FA5A32F" Ref="#PWR?"  Part="1" 
+AR Path="/5F7CBB94/5FA5A32F" Ref="#PWR?"  Part="1" 
+F 0 "#PWR?" H 1750 900 50  0001 C CNN
+F 1 "+5V" H 1765 1223 50  0000 C CNN
+F 2 "" H 1750 1050 50  0001 C CNN
+F 3 "" H 1750 1050 50  0001 C CNN
+	1    1750 1050
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	1750 1050 1750 1400
+Connection ~ 1750 1400
+$Comp
+L power:PWR_FLAG #FLG?
+U 1 1 5FBF14D4
+P 1750 1400
+F 0 "#FLG?" H 1750 1475 50  0001 C CNN
+F 1 "PWR_FLAG" V 1750 1528 50  0000 L CNN
+F 2 "" H 1750 1400 50  0001 C CNN
+F 3 "~" H 1750 1400 50  0001 C CNN
+	1    1750 1400
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	1550 1400 1750 1400
+$Comp
+L power:PWR_FLAG #FLG?
+U 1 1 5FBF3225
+P 1750 4000
+F 0 "#FLG?" H 1750 4075 50  0001 C CNN
+F 1 "PWR_FLAG" V 1750 4128 50  0000 L CNN
+F 2 "" H 1750 4000 50  0001 C CNN
+F 3 "~" H 1750 4000 50  0001 C CNN
+	1    1750 4000
+	0    1    1    0   
+$EndComp
+Connection ~ 1750 4000
+Wire Wire Line
+	1750 4000 1750 4150
+$Comp
+L power:PWR_FLAG #FLG?
+U 1 1 5FBF3D20
+P 1750 5250
+F 0 "#FLG?" H 1750 5325 50  0001 C CNN
+F 1 "PWR_FLAG" V 1750 5378 50  0000 L CNN
+F 2 "" H 1750 5250 50  0001 C CNN
+F 3 "~" H 1750 5250 50  0001 C CNN
+	1    1750 5250
+	0    1    1    0   
+$EndComp
 $EndSCHEMATC
--- a/kicad/sabik-cpu-cache.lib
+++ b/kicad/sabik-cpu-cache.lib
@ -58,6 +58,32 @@ X ~ T 200 -100 100 L 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
+# Connector_Conn_01x04_Male
+#
+DEF Connector_Conn_01x04_Male J 0 40 Y N 1 F N
+F0 "J" 0 200 50 H V C CNN
+F1 "Connector_Conn_01x04_Male" 0 -300 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Connector*:*_1x??_*
+$ENDFPLIST
+DRAW
+S 34 -195 0 -205 1 1 6 F
+S 34 -95 0 -105 1 1 6 F
+S 34 5 0 -5 1 1 6 F
+S 34 105 0 95 1 1 6 F
+P 2 1 1 6 50 -200 34 -200 N
+P 2 1 1 6 50 -100 34 -100 N
+P 2 1 1 6 50 0 34 0 N
+P 2 1 1 6 50 100 34 100 N
+X Pin_1 1 200 100 150 L 50 50 1 1 P
+X Pin_2 2 200 0 150 L 50 50 1 1 P
+X Pin_3 3 200 -100 150 L 50 50 1 1 P
+X Pin_4 4 200 -200 150 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
 # Connector_Conn_ARM_JTAG_SWD_10
 #
 DEF Connector_Conn_ARM_JTAG_SWD_10 J 0 40 Y Y 1 F N
@ -325,6 +351,28 @@ X A 2 150 0 100 L 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
+# Device_D_Zener
+#
+DEF Device_D_Zener D 0 40 N N 1 F N
+F0 "D" 0 100 50 H V C CNN
+F1 "Device_D_Zener" 0 -100 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ TO-???*
+ *_Diode_*
+ *SingleDiode*
+ D_*
+$ENDFPLIST
+DRAW
+P 2 0 1 0 50 0 -50 0 N
+P 3 0 1 8 -50 -50 -50 50 -30 50 N
+P 4 0 1 8 50 -50 50 50 -50 0 50 -50 N
+X K 1 -150 0 100 R 50 50 1 1 P
+X A 2 150 0 100 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
 # Device_Fuse
 #
 DEF Device_Fuse F 0 0 N Y 1 F N
@ -402,11 +450,11 @@ X ~ 2 0 -150 50 U 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
-# Interface_UART_MAX485E
+# Interface_UART_MAX3485
 #
-DEF Interface_UART_MAX485E U 0 20 Y Y 1 F N
+DEF Interface_UART_MAX3485 U 0 20 Y Y 1 F N
 F0 "U" -240 450 50 H V C CNN
-F1 "Interface_UART_MAX485E" 30 450 50 H V L CNN
+F1 "Interface_UART_MAX3485" 30 450 50 H V L CNN
 F2 "" 0 -700 50 H I C CNN
 F3 "" 0 50 50 H I C CNN
 ALIAS MAX483E MAX485E MAX487E MAX1487E MAX3485 MAX3483 MAX3486
@ -537,6 +585,43 @@ X VDDA 9 200 1500 100 D 50 50 1 1 W
 ENDDRAW
 ENDDEF
 #
+# Power_Protection_TPD2EUSB30A
+#
+DEF Power_Protection_TPD2EUSB30A U 0 0 Y Y 1 F N
+F0 "U" 0 250 50 H V C CNN
+F1 "Power_Protection_TPD2EUSB30A" 300 -300 50 H V C CNN
+F2 "Package_TO_SOT_SMD:Texas_DRT-3" -750 -300 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+ALIAS TPD2EUSB30A
+$FPLIST
+ Texas*DRT*
+$ENDFPLIST
+DRAW
+C -125 0 11 0 1 0 F
+C 0 -150 11 0 1 0 F
+C 0 150 11 0 1 0 F
+C 125 0 11 0 1 0 F
+S -200 200 200 -200 0 1 10 f
+S -125 150 125 -150 0 1 0 N
+P 2 0 1 0 -200 0 -125 0 N
+P 2 0 1 0 -150 -50 -100 -50 N
+P 2 0 1 0 -150 100 -100 100 N
+P 2 0 1 0 0 150 0 -200 N
+P 2 0 1 0 100 -50 150 -50 N
+P 2 0 1 0 100 100 150 100 N
+P 2 0 1 0 200 0 125 0 N
+P 3 0 1 0 30 30 -30 30 -30 20 N
+P 4 0 1 0 -100 -100 -150 -100 -125 -50 -100 -100 N
+P 4 0 1 0 -100 50 -150 50 -125 100 -100 50 N
+P 4 0 1 0 25 -20 -25 -20 0 30 25 -20 N
+P 4 0 1 0 150 -100 100 -100 125 -50 150 -100 N
+P 4 0 1 0 150 50 100 50 125 100 150 50 N
+X D+ 1 -400 0 200 R 50 50 1 1 P
+X D- 2 400 0 200 L 50 50 1 1 P
+X GND 3 0 -400 200 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
 # Regulator_Linear_AP1117-33
 #
 DEF Regulator_Linear_AP1117-33 U 0 10 Y Y 1 F N
@ -632,6 +717,34 @@ X GND 1 0 0 0 D 50 50 1 1 W N
 ENDDRAW
 ENDDEF
 #
+# power_PWR_FLAG
+#
+DEF power_PWR_FLAG #FLG 0 0 N N 1 F P
+F0 "#FLG" 0 75 50 H I C CNN
+F1 "power_PWR_FLAG" 0 150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 6 0 1 0 0 0 0 50 -40 75 0 100 40 75 0 50 N
+X pwr 1 0 0 0 U 50 50 0 0 w
+ENDDRAW
+ENDDEF
+#
+# power_VBUS
+#
+DEF power_VBUS #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -150 50 H I C CNN
+F1 "power_VBUS" 0 150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 1 0 -30 50 0 100 N
+P 2 0 1 0 0 0 0 100 N
+P 2 0 1 0 0 100 30 50 N
+X VBUS 1 0 0 0 U 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
 # power_VDDA
 #
 DEF power_VDDA #PWR 0 0 Y Y 1 F P