ECAD #23: Battery charging, status, and output regulation

pcb/dyna-micro/dyna-micro.kicad_pro

@@ -629,6 +629,10 @@
     [
       "1545cd58-ec56-43ca-991f-528eab9b04ea",
       "USB"
+    ],
+    [
+      "be3c13b5-9ed7-48d7-9628-fcde8ceb3f83",
+      "Battery"
     ]
   ],
   "text_variables": {}

pcb/dyna-micro/dyna-micro.kicad_sch

@@ -4,6 +4,9 @@
 	(generator_version "9.0")
 	(uuid "0389eb62-6503-47dc-9bba-f194441b9f54")
 	(paper "A4")
+	(title_block
+		(company "Dynamite Rocketry")
+	)
 	(lib_symbols)
 	(wire
 		(pts
@@ -459,6 +462,48 @@
 			)
 		)
 	)
+	(sheet
+		(at 147.32 50.8)
+		(size 30.48 10.16)
+		(exclude_from_sim no)
+		(in_bom yes)
+		(on_board yes)
+		(dnp no)
+		(fields_autoplaced yes)
+		(stroke
+			(width 0.1524)
+			(type solid)
+		)
+		(fill
+			(color 0 0 0 0.0000)
+		)
+		(uuid "be3c13b5-9ed7-48d7-9628-fcde8ceb3f83")
+		(property "Sheetname" "Battery"
+			(at 147.32 50.0884 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(justify left bottom)
+			)
+		)
+		(property "Sheetfile" "battery.kicad_sch"
+			(at 147.32 61.5446 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(justify left top)
+			)
+		)
+		(instances
+			(project "dyna-micro"
+				(path "/0389eb62-6503-47dc-9bba-f194441b9f54"
+					(page "6")
+				)
+			)
+		)
+	)
 	(sheet
 		(at 121.92 105.41)
 		(size 15.24 21.59)

pcb/dyna-micro/usb-c.kicad_sch

@@ -4,6 +4,10 @@
 	(generator_version "9.0")
 	(uuid "817bf964-d8ca-450d-bbff-0dc446ea02e3")
 	(paper "A4")
+	(title_block
+		(title "USB-C Interface")
+		(company "Dynamite Rocketry")
+	)
 	(lib_symbols
 		(symbol "Connector:USB_C_Receptacle_USB2.0_16P"
 			(pin_names
@@ -1698,6 +1702,131 @@
 			)
 			(embedded_fonts no)
 		)
+		(symbol "power:VBUS"
+			(power)
+			(pin_numbers
+				(hide yes)
+			)
+			(pin_names
+				(offset 0)
+				(hide yes)
+			)
+			(exclude_from_sim no)
+			(in_bom yes)
+			(on_board yes)
+			(property "Reference" "#PWR"
+				(at 0 -3.81 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+					(hide yes)
+				)
+			)
+			(property "Value" "VBUS"
+				(at 0 3.556 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+				)
+			)
+			(property "Footprint" ""
+				(at 0 0 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+					(hide yes)
+				)
+			)
+			(property "Datasheet" ""
+				(at 0 0 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+					(hide yes)
+				)
+			)
+			(property "Description" "Power symbol creates a global label with name \"VBUS\""
+				(at 0 0 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+					(hide yes)
+				)
+			)
+			(property "ki_keywords" "global power"
+				(at 0 0 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+					(hide yes)
+				)
+			)
+			(symbol "VBUS_0_1"
+				(polyline
+					(pts
+						(xy -0.762 1.27) (xy 0 2.54)
+					)
+					(stroke
+						(width 0)
+						(type default)
+					)
+					(fill
+						(type none)
+					)
+				)
+				(polyline
+					(pts
+						(xy 0 2.54) (xy 0.762 1.27)
+					)
+					(stroke
+						(width 0)
+						(type default)
+					)
+					(fill
+						(type none)
+					)
+				)
+				(polyline
+					(pts
+						(xy 0 0) (xy 0 2.54)
+					)
+					(stroke
+						(width 0)
+						(type default)
+					)
+					(fill
+						(type none)
+					)
+				)
+			)
+			(symbol "VBUS_1_1"
+				(pin power_in line
+					(at 0 0 90)
+					(length 0)
+					(name "~"
+						(effects
+							(font
+								(size 1.27 1.27)
+							)
+						)
+					)
+					(number "1"
+						(effects
+							(font
+								(size 1.27 1.27)
+							)
+						)
+					)
+				)
+			)
+			(embedded_fonts no)
+		)
 	)
 	(text_box "Place decoupling capacitor as close as possible to IC power pin."
 		(exclude_from_sim no)
@@ -2005,72 +2134,6 @@
 			)
 		)
 	)
-	(symbol
-		(lib_id "power:+5V")
-		(at 156.21 95.25 0)
-		(unit 1)
-		(exclude_from_sim no)
-		(in_bom yes)
-		(on_board yes)
-		(dnp no)
-		(fields_autoplaced yes)
-		(uuid "2a8fbd14-2453-4156-ad5a-142ffaf990b1")
-		(property "Reference" "#PWR022"
-			(at 156.21 99.06 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-				(hide yes)
-			)
-		)
-		(property "Value" "+5V"
-			(at 156.21 90.17 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-			)
-		)
-		(property "Footprint" ""
-			(at 156.21 95.25 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-				(hide yes)
-			)
-		)
-		(property "Datasheet" ""
-			(at 156.21 95.25 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-				(hide yes)
-			)
-		)
-		(property "Description" "Power symbol creates a global label with name \"+5V\""
-			(at 156.21 95.25 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-				(hide yes)
-			)
-		)
-		(pin "1"
-			(uuid "6293fd5c-202b-4473-a161-e2c133d924ba")
-		)
-		(instances
-			(project ""
-				(path "/0389eb62-6503-47dc-9bba-f194441b9f54/1545cd58-ec56-43ca-991f-528eab9b04ea"
-					(reference "#PWR022")
-					(unit 1)
-				)
-			)
-		)
-	)
 	(symbol
 		(lib_id "power:GNDD")
 		(at 102.87 123.19 0)
@@ -2163,7 +2226,7 @@
 				)
 			)
 		)
-		(property "Footprint" ""
+		(property "Footprint" "Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal"
 			(at 106.68 100.33 0)
 			(effects
 				(font
@@ -2320,6 +2383,72 @@
 			)
 		)
 	)
+	(symbol
+		(lib_id "power:VBUS")
+		(at 156.21 95.25 0)
+		(unit 1)
+		(exclude_from_sim no)
+		(in_bom yes)
+		(on_board yes)
+		(dnp no)
+		(fields_autoplaced yes)
+		(uuid "71ab476c-fa44-446b-9f03-9e92d55b1217")
+		(property "Reference" "#PWR022"
+			(at 156.21 99.06 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Value" "VBUS"
+			(at 156.21 90.17 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+			)
+		)
+		(property "Footprint" ""
+			(at 156.21 95.25 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Datasheet" ""
+			(at 156.21 95.25 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Description" "Power symbol creates a global label with name \"VBUS\""
+			(at 156.21 95.25 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(pin "1"
+			(uuid "7f8da933-6068-4e20-bbe8-95535759cdb9")
+		)
+		(instances
+			(project "dyna-micro"
+				(path "/0389eb62-6503-47dc-9bba-f194441b9f54/1545cd58-ec56-43ca-991f-528eab9b04ea"
+					(reference "#PWR022")
+					(unit 1)
+				)
+			)
+		)
+	)
 	(symbol
 		(lib_id "power:GNDD")
 		(at 95.25 123.19 0)
@@ -2670,6 +2799,72 @@
 			)
 		)
 	)
+	(symbol
+		(lib_id "power:VBUS")
+		(at 173.99 97.79 0)
+		(unit 1)
+		(exclude_from_sim no)
+		(in_bom yes)
+		(on_board yes)
+		(dnp no)
+		(fields_autoplaced yes)
+		(uuid "d492e234-4080-43dc-a9bb-eba89c7cafdb")
+		(property "Reference" "#PWR028"
+			(at 173.99 101.6 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Value" "VBUS"
+			(at 173.99 92.71 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+			)
+		)
+		(property "Footprint" ""
+			(at 173.99 97.79 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Datasheet" ""
+			(at 173.99 97.79 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Description" "Power symbol creates a global label with name \"VBUS\""
+			(at 173.99 97.79 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(pin "1"
+			(uuid "daa49d65-b818-4ce1-918f-7850399046d1")
+		)
+		(instances
+			(project ""
+				(path "/0389eb62-6503-47dc-9bba-f194441b9f54/1545cd58-ec56-43ca-991f-528eab9b04ea"
+					(reference "#PWR028")
+					(unit 1)
+				)
+			)
+		)
+	)
 	(symbol
 		(lib_id "power:GNDD")
 		(at 128.27 92.71 90)
@@ -2805,70 +3000,4 @@
 			)
 		)
 	)
-	(symbol
-		(lib_id "power:+5V")
-		(at 173.99 97.79 0)
-		(unit 1)
-		(exclude_from_sim no)
-		(in_bom yes)
-		(on_board yes)
-		(dnp no)
-		(fields_autoplaced yes)
-		(uuid "ff22c271-f7b2-42f9-980f-7e89e59e4ca0")
-		(property "Reference" "#PWR028"
-			(at 173.99 101.6 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-				(hide yes)
-			)
-		)
-		(property "Value" "+5V"
-			(at 173.99 92.71 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-			)
-		)
-		(property "Footprint" ""
-			(at 173.99 97.79 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-				(hide yes)
-			)
-		)
-		(property "Datasheet" ""
-			(at 173.99 97.79 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-				(hide yes)
-			)
-		)
-		(property "Description" "Power symbol creates a global label with name \"+5V\""
-			(at 173.99 97.79 0)
-			(effects
-				(font
-					(size 1.27 1.27)
-				)
-				(hide yes)
-			)
-		)
-		(pin "1"
-			(uuid "a001e0eb-ec0d-4f2d-b921-7426bd34953f")
-		)
-		(instances
-			(project "dyna-micro"
-				(path "/0389eb62-6503-47dc-9bba-f194441b9f54/1545cd58-ec56-43ca-991f-528eab9b04ea"
-					(reference "#PWR028")
-					(unit 1)
-				)
-			)
-		)
-	)
 )

sw/sw.ioc

@@ -12,26 +12,29 @@ Mcu.IP1=RCC
 Mcu.IP2=SPI1
 Mcu.IP3=SPI3
 Mcu.IP4=SYS
-Mcu.IP5=USB_OTG_FS
-Mcu.IPNb=6
+Mcu.IP5=USART1
+Mcu.IP6=USB_OTG_FS
+Mcu.IPNb=7
 Mcu.Name=STM32L4Q5CGTx
 Mcu.Package=LQFP48
 Mcu.Pin0=PA5
 Mcu.Pin1=PA6
-Mcu.Pin10=PB4 (NJTRST)
-Mcu.Pin11=PB5
-Mcu.Pin12=PB6
-Mcu.Pin13=PB7
-Mcu.Pin14=VP_SYS_VS_Systick
+Mcu.Pin10=PA15 (JTDI)
+Mcu.Pin11=PB3 (JTDO/TRACESWO)
+Mcu.Pin12=PB4 (NJTRST)
+Mcu.Pin13=PB5
+Mcu.Pin14=PB6
+Mcu.Pin15=PB7
+Mcu.Pin16=VP_SYS_VS_Systick
 Mcu.Pin2=PA7
 Mcu.Pin3=PB0
-Mcu.Pin4=PA11
-Mcu.Pin5=PA12
-Mcu.Pin6=PA13 (JTMS/SWDIO)
-Mcu.Pin7=PA14 (JTCK/SWCLK)
-Mcu.Pin8=PA15 (JTDI)
-Mcu.Pin9=PB3 (JTDO/TRACESWO)
-Mcu.PinsNb=15
+Mcu.Pin4=PA9
+Mcu.Pin5=PA10
+Mcu.Pin6=PA11
+Mcu.Pin7=PA12
+Mcu.Pin8=PA13 (JTMS/SWDIO)
+Mcu.Pin9=PA14 (JTCK/SWCLK)
+Mcu.PinsNb=17
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
 Mcu.UserName=STM32L4Q5CGTx
@@ -48,13 +51,17 @@ NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
 NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:false\:true\:false
 NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
+PA10.Mode=Asynchronous
+PA10.Signal=USART1_RX
 PA11.Mode=Device_Only
 PA11.Signal=USB_OTG_FS_DM
 PA12.Mode=Device_Only
 PA12.Signal=USB_OTG_FS_DP
 PA13\ (JTMS/SWDIO).Locked=true
+PA13\ (JTMS/SWDIO).Mode=Serial_Wire
 PA13\ (JTMS/SWDIO).Signal=SYS_JTMS-SWDIO
 PA14\ (JTCK/SWCLK).Locked=true
+PA14\ (JTCK/SWCLK).Mode=Serial_Wire
 PA14\ (JTCK/SWCLK).Signal=SYS_JTCK-SWCLK
 PA15\ (JTDI).GPIOParameters=GPIO_Label
 PA15\ (JTDI).GPIO_Label=FLASH_CS
@@ -72,6 +79,8 @@ PA7.GPIOParameters=GPIO_Label
 PA7.GPIO_Label=PRES_MOSI
 PA7.Mode=Full_Duplex_Master
 PA7.Signal=SPI1_MOSI
+PA9.Mode=Asynchronous
+PA9.Signal=USART1_TX
 PB0.GPIOParameters=GPIO_Label
 PB0.GPIO_Label=PRES_CS
 PB0.Locked=true
@@ -199,6 +208,8 @@ SPI3.Direction=SPI_DIRECTION_2LINES
 SPI3.IPParameters=VirtualType,Mode,Direction,CalculateBaudRate
 SPI3.Mode=SPI_MODE_MASTER
 SPI3.VirtualType=VM_MASTER
+USART1.IPParameters=VirtualMode-Asynchronous
+USART1.VirtualMode-Asynchronous=VM_ASYNC
 USB_OTG_FS.IPParameters=VirtualMode
 USB_OTG_FS.VirtualMode=Device_Only
 VP_SYS_VS_Systick.Mode=SysTick