diff --git a/libopencm3 b/libopencm3
index 6232f8d0..63398ff8 160000
--- a/libopencm3
+++ b/libopencm3
@@ -1 +1 @@
-Subproject commit 6232f8d0357055021e18325efa083a88ded30107
+Subproject commit 63398ff8000f88aed1e44fc8714c6f907c6c3982
diff --git a/scripts/stm32_mem.py b/scripts/stm32_mem.py
index c6feed9d..690657e0 100755
--- a/scripts/stm32_mem.py
+++ b/scripts/stm32_mem.py
@@ -2,7 +2,7 @@
 #
 # stm32_mem.py: STM32 memory access using USB DFU class
 # Copyright (C) 2011  Black Sphere Technologies
-# Copyright (C) 2017  Uwe Bonnes (bon@elektron.ikp.physik.tu-darmstadt.de)
+# Copyright (C) 2017, 2020  Uwe Bonnes (bon@elektron.ikp.physik.tu-darmstadt.de)
 # Written by Gareth McMullin <gareth@blacksphere.co.nz>
 #
 # This program is free software: you can redistribute it and/or modify
@@ -121,9 +121,9 @@ def stm32_scan(args, test):
 		print("Found multiple devices:\n")
 		for dev in bmp_devs:
 			dfudev = dfu.dfu_device(*dev)
-			man = dfudev.handle.getString(dfudev.dev.iManufacturer, 30)
-			product = dfudev.handle.getString(dfudev.dev.iProduct, 96)
-			serial_no = dfudev.handle.getString(dfudev.dev.iSerialNumber, 30)
+			man = dfudev.handle.getString(dfudev.dev.iManufacturer, 30).decode('utf8')
+			product = dfudev.handle.getString(dfudev.dev.iProduct, 96).decode('utf8')
+			serial_no = dfudev.handle.getString(dfudev.dev.iSerialNumber, 30).decode('utf8')
 			print("Device ID:\t %04x:%04x" % (dfudev.dev.idVendor, dfudev.dev.idProduct))
 			print("Manufacturer:\t %s" % man)
 			print("Product:\t %s" % product)
@@ -134,9 +134,9 @@ def stm32_scan(args, test):
 
 	for dev in bmp_devs:
 		dfudev = dfu.dfu_device(*dev)
-		man = dfudev.handle.getString(dfudev.dev.iManufacturer, 30)
-		product = dfudev.handle.getString(dfudev.dev.iProduct, 96)
-		serial_no = dfudev.handle.getString(dfudev.dev.iSerialNumber, 30)
+		man = dfudev.handle.getString(dfudev.dev.iManufacturer, 30).decode('utf8')
+		product = dfudev.handle.getString(dfudev.dev.iProduct, 96).decode('utf8')
+		serial_no = dfudev.handle.getString(dfudev.dev.iSerialNumber, 30).decode('utf8')
 		if args.serial_target:
 			if man == "Black Sphere Technologies" and serial_no ==	args.serial_target:
 				break
@@ -150,7 +150,7 @@ def stm32_scan(args, test):
 	print("Serial:\t\t %s" % serial_no)
 
 	if args.serial_target and serial_no != args.serial_target:
-		print("Serial number doesn't match!\n")
+		print("Serial number doesn't match %s vs %s!\n" % (serial_no, args.serial_target))
 		exit(-2)
 
 	return dfudev
@@ -203,11 +203,11 @@ if __name__ == "__main__":
 
 	bin = file.read()
 
-	product = dfudev.handle.getString(dfudev.dev.iProduct, 64)
+	product = dfudev.handle.getString(dfudev.dev.iProduct, 64).decode('utf8')
 	if args.address :
 		start = int(args.address, 0)
 	else :
-		if b"F4" in product:
+		if "F4" in product or "STLINK-V3" in product:
 			start = 0x8004000
 		else:
 			start = 0x8002000
diff --git a/src/command.c b/src/command.c
index b32a83a8..ee18ab07 100644
--- a/src/command.c
+++ b/src/command.c
@@ -149,16 +149,18 @@ int command_process(target *t, char *cmd)
 	return target_command(t, argc, argv);
 }
 
+#define BOARD_IDENT "Black Magic Probe" PLATFORM_IDENT FIRMWARE_VERSION
+
 bool cmd_version(target *t, int argc, char **argv)
 {
 	(void)t;
 	(void)argc;
 	(void)argv;
+	gdb_out(BOARD_IDENT);
 #if PC_HOSTED == 1
-	gdb_outf("Black Magic Probe, PC-Hosted for " PLATFORM_IDENT()
-			 ", Version " FIRMWARE_VERSION "\n");
+	gdb_outf("\n for %s, %s\n", info.manufacturer, info.product);
 #else
-	gdb_outf("Black Magic Probe (Firmware " FIRMWARE_VERSION ") (Hardware Version %d)\n", platform_hwversion());
+	gdb_outf(", Hardware Version %d\n", platform_hwversion());
 #endif
 	gdb_out("Copyright (C) 2015  Black Sphere Technologies Ltd.\n");
 	gdb_out("License GPLv3+: GNU GPL version 3 or later "
diff --git a/src/platforms/common/cdcacm.c b/src/platforms/common/cdcacm.c
index 2fb12a9c..4a6c9634 100644
--- a/src/platforms/common/cdcacm.c
+++ b/src/platforms/common/cdcacm.c
@@ -34,6 +34,7 @@
 #endif
 #include "usbuart.h"
 #include "serialno.h"
+#include "version.h"
 
 #include <libopencm3/cm3/nvic.h>
 #include <libopencm3/usb/usbd.h>
@@ -394,12 +395,15 @@ static const struct usb_config_descriptor config = {
 	.interface = ifaces,
 };
 
-#if defined(STM32L0) || defined(STM32F3) || defined(STM32F4)
-static char serial_no[13];
+#if defined(DUSE_ST_SERIAL)
+char serial_no[13];
 #else
 static char serial_no[9];
 #endif
 
+#define BOARD_IDENT "Black Magic Probe" PLATFORM_IDENT FIRMWARE_VERSION
+#define DFU_IDENT   "Black Magic Firmware Upgrade" PLATFORM_IDENT FIRMWARE_VERSION
+
 static const char *usb_strings[] = {
 	"Black Sphere Technologies",
 	BOARD_IDENT,
diff --git a/src/platforms/f4discovery/Makefile.inc b/src/platforms/f4discovery/Makefile.inc
index 8596882b..c9116db5 100644
--- a/src/platforms/f4discovery/Makefile.inc
+++ b/src/platforms/f4discovery/Makefile.inc
@@ -17,9 +17,9 @@ LDFLAGS_BOOT = -lopencm3_stm32f4 \
 ifeq ($(BMP_BOOTLOADER), 1)
 $(info  Load address 0x08004000 for BMPBootloader)
 LDFLAGS = $(LDFLAGS_BOOT) -Wl,-Ttext=0x8004000
-CFLAGS += -DUSE_BMP_SERIAL
 else
-LDFLAGS = $(LDFLAGS_BOOT)
+LDFLAGS += $(LDFLAGS_BOOT)
+CFLAGS += -DUSE_ST_SERIAL
 endif
 
 VPATH += platforms/stm32
diff --git a/src/platforms/f4discovery/platform.c b/src/platforms/f4discovery/platform.c
index 53705138..2eb6bcbc 100644
--- a/src/platforms/f4discovery/platform.c
+++ b/src/platforms/f4discovery/platform.c
@@ -27,7 +27,7 @@
 #include "usbuart.h"
 #include "morse.h"
 
-#include <libopencm3/stm32/f4/rcc.h>
+#include <libopencm3/stm32/rcc.h>
 #include <libopencm3/cm3/scb.h>
 #include <libopencm3/cm3/nvic.h>
 #include <libopencm3/stm32/exti.h>
diff --git a/src/platforms/f4discovery/platform.h b/src/platforms/f4discovery/platform.h
index 29e2b861..8f059094 100644
--- a/src/platforms/f4discovery/platform.h
+++ b/src/platforms/f4discovery/platform.h
@@ -27,14 +27,11 @@
 #include "gpio.h"
 #include "timing.h"
 #include "timing_stm32.h"
-#include "version.h"
 
 #include <setjmp.h>
 
 #define PLATFORM_HAS_TRACESWO
-#define BOARD_IDENT "Black Magic Probe (F4Discovery), (Firmware " FIRMWARE_VERSION ")"
-#define  BOARD_IDENT_DFU  "Black Magic Firmware Upgrade (F4Discovery)"
-#define DFU_IDENT   "Black Magic Firmware Upgrade (F4Discovery)"
+#define PLATFORM_IDENT "(F4Discovery) "
 
 /* Important pin mappings for STM32 implementation:
  *
diff --git a/src/platforms/hosted/ftdi_bmp.c b/src/platforms/hosted/ftdi_bmp.c
index acf9ed4f..306e0259 100644
--- a/src/platforms/hosted/ftdi_bmp.c
+++ b/src/platforms/hosted/ftdi_bmp.c
@@ -20,7 +20,6 @@
  */
 #include "general.h"
 #include "gdb_if.h"
-#include "version.h"
 #include "platform.h"
 #include "target.h"
 
diff --git a/src/platforms/hosted/jlink.c b/src/platforms/hosted/jlink.c
index 7515de5a..caf8bf90 100644
--- a/src/platforms/hosted/jlink.c
+++ b/src/platforms/hosted/jlink.c
@@ -38,6 +38,7 @@
 /* Only two devices PIDS tested so long */
 #define USB_VID_SEGGER_0101  0x0101
 #define USB_VID_SEGGER_0105  0x0105
+#define USB_VID_SEGGER_1020  0x1020
 
 static void jlink_print_caps(bmp_info_t *info)
 {
@@ -175,7 +176,8 @@ int jlink_init(bmp_info_t *info)
 		if (desc.idVendor !=  USB_PID_SEGGER)
 			continue;
 		if ((desc.idProduct != USB_VID_SEGGER_0101) &&
-			(desc.idProduct != USB_VID_SEGGER_0105))
+			(desc.idProduct != USB_VID_SEGGER_0105) &&
+			(desc.idProduct != USB_VID_SEGGER_1020))
 			continue;
 		int res = libusb_open(dev, &jl->ul_libusb_device_handle);
 		if (res != LIBUSB_SUCCESS)
diff --git a/src/platforms/hosted/platform.h b/src/platforms/hosted/platform.h
index edbc16d2..d5f1860c 100644
--- a/src/platforms/hosted/platform.h
+++ b/src/platforms/hosted/platform.h
@@ -10,7 +10,7 @@
 char *platform_ident(void);
 void platform_buffer_flush(void);
 
-#define PLATFORM_IDENT() "NONE"
+#define PLATFORM_IDENT     "(PC-Hosted) "
 #define SET_IDLE_STATE(x)
 #define SET_RUN_STATE(x)
 
diff --git a/src/platforms/hydrabus/Makefile.inc b/src/platforms/hydrabus/Makefile.inc
index 24d43fa1..9d1d2a01 100644
--- a/src/platforms/hydrabus/Makefile.inc
+++ b/src/platforms/hydrabus/Makefile.inc
@@ -5,7 +5,7 @@ OBJCOPY = $(CROSS_COMPILE)objcopy
 CFLAGS += -Istm32/include -mcpu=cortex-m4 -mthumb \
 	-mfloat-abi=hard -mfpu=fpv4-sp-d16 \
 	-DSTM32F4 -DHYDRABUS -I../libopencm3/include \
-	-Iplatforms/stm32
+	-Iplatforms/stm32 -DUSE_ST_BOOTLOADER
 
 LDFLAGS = -lopencm3_stm32f4 \
 	-Wl,-T,platforms/stm32/f4discovery.ld -nostartfiles -lc -lnosys \
diff --git a/src/platforms/hydrabus/platform.c b/src/platforms/hydrabus/platform.c
index 1b02976f..afac95a5 100644
--- a/src/platforms/hydrabus/platform.c
+++ b/src/platforms/hydrabus/platform.c
@@ -27,7 +27,7 @@
 #include "usbuart.h"
 #include "morse.h"
 
-#include <libopencm3/stm32/f4/rcc.h>
+#include <libopencm3/stm32/rcc.h>
 #include <libopencm3/cm3/scb.h>
 #include <libopencm3/cm3/nvic.h>
 #include <libopencm3/stm32/exti.h>
diff --git a/src/platforms/hydrabus/platform.h b/src/platforms/hydrabus/platform.h
index f8c5a094..c2c85333 100644
--- a/src/platforms/hydrabus/platform.h
+++ b/src/platforms/hydrabus/platform.h
@@ -28,14 +28,11 @@
 #include "gpio.h"
 #include "timing.h"
 #include "timing_stm32.h"
-#include "version.h"
 
 #include <setjmp.h>
 
 #define PLATFORM_HAS_TRACESWO
-#define BOARD_IDENT       "Black Magic Probe (HydraBus), (Firmware " FIRMWARE_VERSION ")"
-#define BOARD_IDENT_DFU   "Black Magic (Upgrade) for HydraBus, (Firmware " FIRMWARE_VERSION ")"
-#define DFU_IDENT         "Black Magic Firmware Upgrade (HydraBus)"
+#define PLATFORM_IDENT        " (HydraBus))"
 
 /* Important pin mappings for STM32 implementation:
  *
diff --git a/src/platforms/launchpad-icdi/platform.h b/src/platforms/launchpad-icdi/platform.h
index d05f61c3..7ed96367 100644
--- a/src/platforms/launchpad-icdi/platform.h
+++ b/src/platforms/launchpad-icdi/platform.h
@@ -21,12 +21,8 @@
 #include <libopencm3/usb/usbd.h>
 
 #include "timing.h"
-#include "version.h"
 
-#define BOARD_IDENT             "Black Magic Probe (Launchpad ICDI), (Firmware " FIRMWARE_VERSION ")"
-#define BOARD_IDENT_DFU		"Black Magic (Upgrade) for Launchpad, (Firmware " FIRMWARE_VERSION ")"
-#define DFU_IDENT               "Black Magic Firmware Upgrade (Launchpad)"
-#define DFU_IFACE_STRING	"lolwut"
+#define PLATFORM_IDENT      "(Launchpad ICDI) "
 
 extern uint8_t running_status;
 
diff --git a/src/platforms/native/platform.c b/src/platforms/native/platform.c
index e16632b6..2f6e87f4 100644
--- a/src/platforms/native/platform.c
+++ b/src/platforms/native/platform.c
@@ -27,14 +27,14 @@
 #include "usbuart.h"
 #include "morse.h"
 
-#include <libopencm3/stm32/f1/rcc.h>
+#include <libopencm3/stm32/rcc.h>
 #include <libopencm3/cm3/scb.h>
 #include <libopencm3/cm3/scs.h>
 #include <libopencm3/cm3/nvic.h>
 #include <libopencm3/stm32/exti.h>
 #include <libopencm3/stm32/usart.h>
 #include <libopencm3/usb/usbd.h>
-#include <libopencm3/stm32/f1/adc.h>
+#include <libopencm3/stm32/adc.h>
 
 static void adc_init(void);
 static void setup_vbus_irq(void);
@@ -97,7 +97,7 @@ void platform_init(void)
 	initialise_monitor_handles();
 #endif
 
-	rcc_clock_setup_in_hse_8mhz_out_72mhz();
+	rcc_clock_setup_pll(&rcc_hse_configs[RCC_CLOCK_HSE8_72MHZ]);
 
 	/* Enable peripherals */
 	rcc_periph_clock_enable(RCC_USB);
diff --git a/src/platforms/native/platform.h b/src/platforms/native/platform.h
index 451d308a..0ef4178f 100644
--- a/src/platforms/native/platform.h
+++ b/src/platforms/native/platform.h
@@ -38,10 +38,7 @@ extern bool debug_bmp;
 int usbuart_debug_write(const char *buf, size_t len);
 #endif
 
-#define BOARD_IDENT             "Black Magic Probe"
-#define BOARD_IDENT_DFU	        "Black Magic Probe (Upgrade)"
-#define BOARD_IDENT_UPD	        "Black Magic Probe (DFU Upgrade)"
-#define DFU_IDENT               "Black Magic Firmware Upgrade"
+#define PLATFORM_IDENT          " "
 #define UPD_IFACE_STRING        "@Internal Flash   /0x08000000/8*001Kg"
 
 /* Important pin mappings for STM32 implementation:
diff --git a/src/platforms/native/usbdfu.c b/src/platforms/native/usbdfu.c
index db44002c..5a3a6892 100644
--- a/src/platforms/native/usbdfu.c
+++ b/src/platforms/native/usbdfu.c
@@ -44,7 +44,7 @@ int main(void)
 
 	dfu_protect(false);
 
-	rcc_clock_setup_in_hse_8mhz_out_72mhz();
+	rcc_clock_setup_pll(&rcc_hse_configs[RCC_CLOCK_HSE8_72MHZ]);
 	systick_set_clocksource(STK_CSR_CLKSOURCE_AHB_DIV8);
 	systick_set_reload(900000);
 
diff --git a/src/platforms/stlink/platform.c b/src/platforms/stlink/platform.c
index a38b0a7f..93b0a3b0 100644
--- a/src/platforms/stlink/platform.c
+++ b/src/platforms/stlink/platform.c
@@ -52,7 +52,7 @@ void platform_init(void)
 	void initialise_monitor_handles(void);
 	initialise_monitor_handles();
 #endif
-	rcc_clock_setup_in_hse_8mhz_out_72mhz();
+	rcc_clock_setup_pll(&rcc_hse_configs[RCC_CLOCK_HSE8_72MHZ]);
 	if (rev == 0) {
 		led_idle_run = GPIO8;
 		srst_pin = SRST_PIN_V1;
diff --git a/src/platforms/stlink/platform.h b/src/platforms/stlink/platform.h
index ee776f6a..12c498d9 100644
--- a/src/platforms/stlink/platform.h
+++ b/src/platforms/stlink/platform.h
@@ -27,10 +27,9 @@
 #include "gpio.h"
 #include "timing.h"
 #include "timing_stm32.h"
-#include "version.h"
 
 #include <libopencm3/cm3/common.h>
-#include <libopencm3/stm32/f1/memorymap.h>
+#include <libopencm3/stm32/memorymap.h>
 #include <libopencm3/usb/usbd.h>
 
 #ifdef ENABLE_DEBUG
@@ -40,9 +39,7 @@ extern bool debug_bmp;
 int usbuart_debug_write(const char *buf, size_t len);
 #endif
 
-#define BOARD_IDENT       "Black Magic Probe (STLINK), (Firmware " FIRMWARE_VERSION ")"
-#define BOARD_IDENT_DFU   "Black Magic (Upgrade) for STLink/Discovery, (Firmware " FIRMWARE_VERSION ")"
-#define DFU_IDENT         "Black Magic Firmware Upgrade (STLINK)"
+#define PLATFORM_IDENT   "(STLINK/V2) "
 
 /* Hardware definitions... */
 #define TDI_PORT	GPIOA
diff --git a/src/platforms/stlink/usbdfu.c b/src/platforms/stlink/usbdfu.c
index 8b1cf7cf..12f83991 100644
--- a/src/platforms/stlink/usbdfu.c
+++ b/src/platforms/stlink/usbdfu.c
@@ -65,7 +65,7 @@ int main(void)
 		dfu_jump_app_if_valid();
 	dfu_protect(false);
 
-	rcc_clock_setup_in_hse_8mhz_out_72mhz();
+	rcc_clock_setup_pll(&rcc_hse_configs[RCC_CLOCK_HSE8_72MHZ]);
 	systick_set_clocksource(STK_CSR_CLKSOURCE_AHB_DIV8);
 	systick_set_reload(900000);
 
diff --git a/src/platforms/stm32/dfucore.c b/src/platforms/stm32/dfucore.c
index 84e588e8..3aceef9e 100644
--- a/src/platforms/stm32/dfucore.c
+++ b/src/platforms/stm32/dfucore.c
@@ -18,6 +18,8 @@
  */
 
 #include "general.h"
+#include "version.h"
+
 #include <libopencm3/stm32/desig.h>
 
 #include <string.h>
@@ -124,10 +126,11 @@ const struct usb_config_descriptor config = {
 
 static char serial_no[9];
 static char if_string[] = DFU_IFACE_STRING;
+#define BOARD_IDENT_DFU(BOARD_TYPE) "Black Magic Probe DFU " PLATFORM_IDENT  "" FIRMWARE_VERSION
 
 static const char *usb_strings[] = {
 	"Black Sphere Technologies",
-	BOARD_IDENT_DFU,
+	BOARD_IDENT_DFU(PLATFORM_IDENT),
 	serial_no,
 	/* This string is used by ST Microelectronics' DfuSe utility */
 	if_string,
diff --git a/src/platforms/swlink/platform.c b/src/platforms/swlink/platform.c
index a11ea55b..24b6140c 100644
--- a/src/platforms/swlink/platform.c
+++ b/src/platforms/swlink/platform.c
@@ -27,13 +27,13 @@
 #include "cdcacm.h"
 #include "usbuart.h"
 
-#include <libopencm3/stm32/f1/rcc.h>
+#include <libopencm3/stm32/rcc.h>
 #include <libopencm3/cm3/scb.h>
 #include <libopencm3/cm3/scs.h>
 #include <libopencm3/cm3/nvic.h>
 #include <libopencm3/stm32/usart.h>
 #include <libopencm3/usb/usbd.h>
-#include <libopencm3/stm32/f1/adc.h>
+#include <libopencm3/stm32/adc.h>
 
 uint32_t led_error_port;
 uint16_t led_error_pin;
@@ -54,8 +54,7 @@ void platform_init(void)
 	void initialise_monitor_handles(void);
 	initialise_monitor_handles();
 #endif
-	rcc_clock_setup_in_hse_8mhz_out_72mhz();
-
+	rcc_clock_setup_pll(&rcc_hse_configs[RCC_CLOCK_HSE8_72MHZ]);
 	rev =  detect_rev();
 	/* Enable peripherals */
 	rcc_periph_clock_enable(RCC_AFIO);
diff --git a/src/platforms/swlink/platform.h b/src/platforms/swlink/platform.h
index c8a9f2e4..0eb7f4d4 100644
--- a/src/platforms/swlink/platform.h
+++ b/src/platforms/swlink/platform.h
@@ -28,7 +28,6 @@
 #include "gpio.h"
 #include "timing.h"
 #include "timing_stm32.h"
-#include "version.h"
 
 #ifdef ENABLE_DEBUG
 # define PLATFORM_HAS_DEBUG
@@ -37,9 +36,7 @@ extern bool debug_bmp;
 int usbuart_debug_write(const char *buf, size_t len);
 #endif
 
-#define BOARD_IDENT			"Black Magic Probe (SWLINK), (Firmware " FIRMWARE_VERSION ")"
-#define BOARD_IDENT_DFU		"Black Magic (Upgrade), SWLINK, (Firmware " FIRMWARE_VERSION ")"
-#define DFU_IDENT			"Black Magic Firmware Upgrade (SWLINK)"
+#define PLATFORM_IDENT		"(SWLINK) "
 
 /* Hardware definitions... */
 #define TMS_PORT	GPIOA
diff --git a/src/platforms/swlink/usbdfu.c b/src/platforms/swlink/usbdfu.c
index c6a2b282..1d763804 100644
--- a/src/platforms/swlink/usbdfu.c
+++ b/src/platforms/swlink/usbdfu.c
@@ -77,7 +77,7 @@ int main(void)
 
 	dfu_protect(false);
 
-	rcc_clock_setup_in_hse_8mhz_out_72mhz();
+	rcc_clock_setup_pll(&rcc_hse_configs[RCC_CLOCK_HSE8_72MHZ]);
 	systick_set_clocksource(STK_CSR_CLKSOURCE_AHB_DIV8);
 	systick_set_reload(900000);
 
diff --git a/src/remote.c b/src/remote.c
index 445d18ec..10fc65ef 100644
--- a/src/remote.c
+++ b/src/remote.c
@@ -24,6 +24,7 @@
 #include "swdptap.h"
 #include "jtagtap.h"
 #include "gdb_if.h"
+#include "platform.h"
 #include "version.h"
 #include "exception.h"
 #include <stdarg.h>
@@ -299,11 +300,11 @@ void remotePacketProcessGEN(uint8_t i, char *packet)
 #endif
 		break;
 
-#if !defined(BOARD_IDENT) && defined(PLATFORM_IDENT)
-# define BOARD_IDENT() PLATFORM_IDENT
+#if !defined(BOARD_IDENT) && defined(BOARD_IDENT)
+# define PLATFORM_IDENT() BOARD_IDENT
 #endif
 	case REMOTE_START:
-		_respondS(REMOTE_RESP_OK, BOARD_IDENT " " FIRMWARE_VERSION);
+		_respondS(REMOTE_RESP_OK, PLATFORM_IDENT ""  FIRMWARE_VERSION);
 		break;
 
     default: