diff --git a/hw/bsp/keil/board_mcb4300.c b/hw/bsp/keil/board_mcb4300.c
deleted file mode 100644
index 1cd8b070..00000000
--- a/hw/bsp/keil/board_mcb4300.c
+++ /dev/null
@@ -1,154 +0,0 @@
-/**************************************************************************/
-/*!
-    @file     board_mcb4300.c
-    @author   hathach (tinyusb.org)
-
-    @section LICENSE
-
-    Software License Agreement (BSD License)
-
-    Copyright (c) 2013, hathach (tinyusb.org)
-    All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are met:
-    1. Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the
-    documentation and/or other materials provided with the distribution.
-    3. Neither the name of the copyright holders nor the
-    names of its contributors may be used to endorse or promote products
-    derived from this software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
-    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
-    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
-    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
-    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-    This file is part of the tinyusb stack.
-*/
-/**************************************************************************/
-
-#include "../board.h"
-
-#ifdef BOARD_MCB4300
-
-//--------------------------------------------------------------------+
-// INCLUDE
-//--------------------------------------------------------------------+
-#define BOARD_MAX_LEDS      8
-
-#define BOARD_UART_PORT     LPC_USART0
-#define BOARD_UART_PIN_PORT 2
-#define BOARD_UART_PIN_TX   0
-#define BOARD_UART_PIN_RX   1
-
-//--------------------------------------------------------------------+
-// MACRO CONSTANT TYPEDEF
-//--------------------------------------------------------------------+
-static const uint8_t ledports[] = {6, 6, 6, 6, 6, 4, 4, 4};
-static const uint8_t ledbits[] = {24, 25, 26, 27, 28, 12, 13, 14};
-
-const static struct {
-  uint8_t port;
-  uint8_t pin;
-}leds[BOARD_MAX_LEDS] = {
-    {6, 24}, {6, 25}, {6, 26}, {6, 27},
-    {4, 28}, {4, 12}, {4, 13}, {4, 14}};
-
-//--------------------------------------------------------------------+
-// INTERNAL OBJECT & FUNCTION DECLARATION
-//--------------------------------------------------------------------+
-
-//--------------------------------------------------------------------+
-// IMPLEMENTATION
-//--------------------------------------------------------------------+
-void board_init(void)
-{
-  CGU_Init();
-
-#if CFG_TUSB_OS == OPT_OS_NONE // TODO may move to main.c
-  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / BOARD_TICKS_HZ); // 1 msec tick timer
-#endif
-
-  //------------- USB Bus power HOST ONLY-------------//
-  // Keil VBUS0 is P6_3
-  scu_pinmux(0x6, 3, MD_PUP | MD_EZI, FUNC1);     		// P6_3 USB0_PWR_EN, USB0 VBus function
-
-  // Keil VBUS1 is P9_5
-  scu_pinmux(0x9, 5, MD_PUP | MD_EZI, FUNC2);				// P9_5 USB1_PWR_EN, USB1 VBus function
-
-  //------------- LEDs init, J21 must be installed -------------//
-  LPC_SCU->SFSPD_10  =  4;              // GPIO6[24]
-  LPC_SCU->SFSPD_11  =  4;              // GPIO6[25]
-  LPC_SCU->SFSPD_12  =  4;              // GPIO6[26]
-  LPC_SCU->SFSPD_13  =  4;              // GPIO6[27]
-  LPC_SCU->SFSPD_14  =  4;              // GPIO6[28]
-  LPC_SCU->SFSP9_0   =  0;              // GPIO4[12]
-  LPC_SCU->SFSP9_1   =  0;              // GPIO4[13]
-  LPC_SCU->SFSP9_2   =  0;              // GPIO4[14]
-
-  for(uint32_t i=0; i<BOARD_MAX_LEDS; i++)
-  {
-    GPIO_SetDir(leds[i].port, BIT_(leds[i].pin), 1); // output
-  }
-
-  //------------- UART -------------//
-  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_TX, MD_PDN             , FUNC1);
-  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_RX, MD_PLN|MD_EZI|MD_ZI, FUNC1);
-
-  UART_CFG_Type UARTConfigStruct;
-  UART_ConfigStructInit(&UARTConfigStruct);
-  UARTConfigStruct.Baud_rate = CFG_UART_BAUDRATE;
-  UARTConfigStruct.Clock_Speed = 0;
-
-  UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
-  UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
-}
-
-//--------------------------------------------------------------------+
-// LEDS
-//--------------------------------------------------------------------+
-void board_leds(uint32_t on_mask, uint32_t off_mask)
-{
-  for (uint32_t i=0; i<BOARD_MAX_LEDS; i++)
-  {
-    if ( on_mask & BIT_(i))
-    {
-      GPIO_SetValue(leds[i].port, BIT_(leds[i].pin));
-    }else if ( off_mask & BIT_(i)) // on_mask take precedence over off_mask
-    {
-      GPIO_ClearValue(leds[i].port, BIT_(leds[i].pin));
-    }
-  }
-}
-
-//--------------------------------------------------------------------+
-// BUTTONS
-//--------------------------------------------------------------------+
-uint32_t board_buttons(void)
-{
-  return 0; // TODO buttons for mcb4300
-}
-
-//--------------------------------------------------------------------+
-// UART
-//--------------------------------------------------------------------+
-uint8_t  board_uart_getchar(void)
-{
-  return UART_ReceiveByte(BOARD_UART_PORT);
-}
-
-void board_uart_putchar(uint8_t c)
-{
-  UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
-}
-
-#endif
diff --git a/hw/bsp/keil/board_mcb4300.h b/hw/bsp/keil/board_mcb4300.h
deleted file mode 100644
index b414e142..00000000
--- a/hw/bsp/keil/board_mcb4300.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/**************************************************************************/
-/*!
-    @file     board_mcb4300.h
-    @author   hathach (tinyusb.org)
-
-    @section LICENSE
-
-    Software License Agreement (BSD License)
-
-    Copyright (c) 2013, hathach (tinyusb.org)
-    All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are met:
-    1. Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the
-    documentation and/or other materials provided with the distribution.
-    3. Neither the name of the copyright holders nor the
-    names of its contributors may be used to endorse or promote products
-    derived from this software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
-    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
-    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-    This file is part of the tinyusb stack.
-*/
-/**************************************************************************/
-
-#ifndef _TUSB_BOARD_MCB4300_H_
-#define _TUSB_BOARD_MCB4300_H_
-
-#include "LPC43xx.h"
-#include "lpc43xx_scu.h"
-#include "lpc43xx_cgu.h"
-#include "lpc43xx_gpio.h"
-#include "lpc43xx_uart.h"
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-#define CFG_PRINTF_TARGET       PRINTF_TARGET_UART
-
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* _TUSB_BOARD_MCB4300_H_ */
diff --git a/hw/bsp/lpcxpresso/board_lpclink2.c b/hw/bsp/lpcxpresso/board_lpclink2.c
deleted file mode 100644
index ea2610f5..00000000
--- a/hw/bsp/lpcxpresso/board_lpclink2.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/**************************************************************************/
-/*!
-    @file     board_lpclink2.c
-    @author   hathach (tinyusb.org)
-
-    @section LICENSE
-
-    Software License Agreement (BSD License)
-
-    Copyright (c) 2013, hathach (tinyusb.org)
-    All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are met:
-    1. Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the
-    documentation and/or other materials provided with the distribution.
-    3. Neither the name of the copyright holders nor the
-    names of its contributors may be used to endorse or promote products
-    derived from this software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
-    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
-    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-    This file is part of the tinyusb stack.
-*/
-/**************************************************************************/
-
-#include "../board.h"
-
-#if BOARD == BOARD_LPCLINK2
-
-#define BOARD_UART_PORT           LPC_USART0
-#define BOARD_UART_PIN_PORT       0x0f
-#define BOARD_UART_PIN_TX         10 // PF.10 : UART0_TXD
-#define BOARD_UART_PIN_RX         11 // PF.11 : UART0_RXD
-
-#define BOARD_MAX_LEDS  1
-
-const static struct {
-  uint8_t port;
-  uint8_t pin;
-}leds[BOARD_MAX_LEDS] = { {0, 8} };
-
-void board_init(void)
-{
-  CGU_Init();
-
-#if CFG_TUSB_OS == OPT_OS_NONE // TODO may move to main.c
-  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / BOARD_TICKS_HZ); // 1 msec tick timer
-#endif
-
-  //------------- USB -------------//
-
-
-  //------------- LED -------------//
-  for (uint8_t i=0; i<BOARD_MAX_LEDS; i++)
-  {
-    scu_pinmux(leds[i].port, leds[i].pin, MD_PUP|MD_EZI|MD_ZI, FUNC0);
-    GPIO_SetDir(leds[i].port, BIT_(leds[i].pin), 1); // output
-  }
-
-
-#if CFG_UART_ENABLE
-  //------------- UART -------------//
-  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_TX, MD_PDN, FUNC1);
-  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_RX, MD_PLN | MD_EZI | MD_ZI, FUNC1);
-
-  UART_CFG_Type UARTConfigStruct;
-  UART_ConfigStructInit(&UARTConfigStruct);
-  UARTConfigStruct.Baud_rate = CFG_UART_BAUDRATE;
-  UARTConfigStruct.Clock_Speed = 0;
-
-  UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
-  UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
-#endif
-}
-
-//--------------------------------------------------------------------+
-// LEDS
-//--------------------------------------------------------------------+
-void board_leds(uint32_t on_mask, uint32_t off_mask)
-{
-  for (uint32_t i=0; i<BOARD_MAX_LEDS; i++)
-  {
-    if ( on_mask & BIT_(i))
-    {
-      GPIO_SetValue(leds[i].port, BIT_(leds[i].pin));
-    }else if ( off_mask & BIT_(i)) // on_mask take precedence over off_mask
-    {
-      GPIO_ClearValue(leds[i].port, BIT_(leds[i].pin));
-    }
-  }
-}
-
-//--------------------------------------------------------------------+
-// UART
-//--------------------------------------------------------------------+
-#if CFG_UART_ENABLE
-uint32_t board_uart_send(uint8_t *buffer, uint32_t length)
-{
-  return UART_Send(BOARD_UART_PORT, buffer, length, BLOCKING);
-}
-
-uint32_t board_uart_recv(uint8_t *buffer, uint32_t length)
-{
-  return UART_Receive(BOARD_UART_PORT, buffer, length, BLOCKING);
-}
-
-uint8_t  board_uart_getchar(void)
-{
-  return UART_ReceiveByte(BOARD_UART_PORT);
-}
-#endif
-
-#endif
diff --git a/hw/bsp/lpcxpresso/board_lpclink2.h b/hw/bsp/lpcxpresso/board_lpclink2.h
deleted file mode 100644
index ddb2f80e..00000000
--- a/hw/bsp/lpcxpresso/board_lpclink2.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/**************************************************************************/
-/*!
-    @file     board_lpclink2.h
-    @author   hathach (tinyusb.org)
-
-    @section LICENSE
-
-    Software License Agreement (BSD License)
-
-    Copyright (c) 2013, hathach (tinyusb.org)
-    All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are met:
-    1. Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the
-    documentation and/or other materials provided with the distribution.
-    3. Neither the name of the copyright holders nor the
-    names of its contributors may be used to endorse or promote products
-    derived from this software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
-    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
-    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-    This file is part of the tinyusb stack.
-*/
-/**************************************************************************/
-
-#ifndef _TUSB_BOARD_LPCLINK2_H_
-#define _TUSB_BOARD_LPCLINK2_H_
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-#include "LPC43xx.h"
-#include "lpc43xx_scu.h"
-#include "lpc43xx_cgu.h"a
-#include "lpc43xx_gpio.h"
-#include "lpc43xx_uart.h"
-#include "lpc43xx_i2c.h"
-
-#define CFG_PRINTF_TARGET       PRINTF_TARGET_UART
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* _TUSB_BOARD_LPCLINK2_H_ */
diff --git a/hw/bsp/lpcxpresso/board_lpcxpresso11u14.c b/hw/bsp/lpcxpresso/board_lpcxpresso11u14.c
deleted file mode 100644
index 7b970543..00000000
--- a/hw/bsp/lpcxpresso/board_lpcxpresso11u14.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/**************************************************************************/
-/*!
-    @file     board_lpcxpresso11u14.c
-    @author   hathach (tinyusb.org)
-
-    @section LICENSE
-
-    Software License Agreement (BSD License)
-
-    Copyright (c) 2013, hathach (tinyusb.org)
-    All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are met:
-    1. Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the
-    documentation and/or other materials provided with the distribution.
-    3. Neither the name of the copyright holders nor the
-    names of its contributors may be used to endorse or promote products
-    derived from this software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
-    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
-    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
-    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
-    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-    This file is part of the tinyusb stack.
-*/
-/**************************************************************************/
-
-#include "../board.h"
-
-#ifdef BOARD_LPCXPRESSO11U14
-
-#define LED_PORT                  (0)
-#define LED_PIN                   (7)
-#define LED_ON                    (1)
-
-const static struct {
-  uint8_t port;
-  uint8_t pin;
-} buttons[] =
-{
-    {1, 22 }, // Joystick up
-    {1, 20 }, // Joystick down
-    {1, 23 }, // Joystick left
-    {1, 21 }, // Joystick right
-    {1, 19 }, // Joystick press
-    {0, 1  }, // SW3
-//    {1, 4  }, // SW4 (require to remove J28)
-};
-
-
-enum {
-  BOARD_BUTTON_COUNT = sizeof(buttons) / sizeof(buttons[0])
-};
-
-void board_init(void)
-{
-  SystemInit();
-
-#if CFG_TUSB_OS == OPT_OS_NONE // TODO may move to main.c
-  SysTick_Config(SystemCoreClock / BOARD_TICKS_HZ); // 1 msec tick timer
-#endif
-
-  GPIOInit();
-
-  //------------- LED -------------//
-  GPIOSetDir(LED_PORT, LED_PIN, 1);
-
-  //------------- BUTTON -------------//
-  for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++) GPIOSetDir(buttons[i].port, buttons[i].pin, 0);
-
-  //------------- UART -------------//
-  UARTInit(CFG_UART_BAUDRATE);
-}
-
-//--------------------------------------------------------------------+
-// LEDS
-//--------------------------------------------------------------------+
-void board_leds(uint32_t on_mask, uint32_t off_mask)
-{
-  if (on_mask & BIT_(0))
-  {
-    GPIOSetBitValue(LED_PORT, LED_PIN, LED_ON);
-  }else if (off_mask & BIT_(0))
-  {
-    GPIOSetBitValue(LED_PORT, LED_PIN, 1 - LED_ON);
-  }
-}
-
-//--------------------------------------------------------------------+
-// Buttons
-//--------------------------------------------------------------------+
-static bool button_read(uint8_t id)
-{
-  return !GPIOGetPinValue(buttons[id].port, buttons[id].pin); // button is active low
-}
-
-uint32_t board_buttons(void)
-{
-  uint32_t result = 0;
-
-  for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++) result |= (button_read(i) ? BIT_(i) : 0);
-
-  return result;
-}
-
-//--------------------------------------------------------------------+
-// UART
-//--------------------------------------------------------------------+
-void board_uart_putchar(uint8_t c)
-{
-  UARTSend(&c, 1);
-}
-
-uint8_t  board_uart_getchar(void)
-{
-//  *buffer = get_key(); TODO cannot find available code for uart getchar
-  return 0;
-}
-
-#endif
diff --git a/hw/bsp/lpcxpresso/board_lpcxpresso11u14.h b/hw/bsp/lpcxpresso/board_lpcxpresso11u14.h
deleted file mode 100644
index ce46cb93..00000000
--- a/hw/bsp/lpcxpresso/board_lpcxpresso11u14.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/**************************************************************************/
-/*!
-    @file     board_lpcxpresso11u14.h
-    @author   hathach (tinyusb.org)
-
-    @section LICENSE
-
-    Software License Agreement (BSD License)
-
-    Copyright (c) 2013, hathach (tinyusb.org)
-    All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are met:
-    1. Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the
-    documentation and/or other materials provided with the distribution.
-    3. Neither the name of the copyright holders nor the
-    names of its contributors may be used to endorse or promote products
-    derived from this software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
-    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
-    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
-    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
-    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-    This file is part of the tinyusb stack.
-*/
-/**************************************************************************/
-
-#ifndef _TUSB_BOARD_LPCXPRESSO11U14_H_
-#define _TUSB_BOARD_LPCXPRESSO11U14_H_
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-#include "LPC11Uxx.h"
-#include "lpc11uxx_gpio.h"
-#include "lpc11uxx_uart.h"
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* _TUSB_BOARD_LPCXPRESSO11U14_H_ */
diff --git a/hw/bsp/ngx/board_ngx4330.c b/hw/bsp/ngx/board_ngx4330.c
deleted file mode 100644
index d82decbe..00000000
--- a/hw/bsp/ngx/board_ngx4330.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/**************************************************************************/
-/*!
-    @file     board_ngx4330.c
-    @author   hathach (tinyusb.org)
-
-    @section LICENSE
-
-    Software License Agreement (BSD License)
-
-    Copyright (c) 2013, hathach (tinyusb.org)
-    All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are met:
-    1. Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the
-    documentation and/or other materials provided with the distribution.
-    3. Neither the name of the copyright holders nor the
-    names of its contributors may be used to endorse or promote products
-    derived from this software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
-    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
-    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
-    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
-    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-    This file is part of the tinyusb stack.
-*/
-/**************************************************************************/
-
-#include "../board.h"
-
-#ifdef BOARD_NGX4330
-
-#define BOARD_UART_PORT           LPC_USART0
-
-const static struct {
-  uint8_t mux_port;
-  uint8_t mux_pin;
-
-  uint8_t gpio_port;
-  uint8_t gpio_pin;
-}leds[] = { {2, 11, 1, 11}, {2, 12, 1,12} };
-
-enum {
-  BOARD_MAX_LEDS = sizeof(leds) / sizeof(leds[0])
-};
-
-const static struct {
-  uint8_t mux_port;
-  uint8_t mux_pin;
-
-  uint8_t gpio_port;
-  uint8_t gpio_pin;
-}buttons[] = { {0x02, 7, 0, 7 } };
-
-enum {
-  BOARD_BUTTON_COUNT = sizeof(buttons) / sizeof(buttons[0])
-};
-
-void board_init(void)
-{
-  CGU_Init();
-
-#if CFG_TUSB_OS == OPT_OS_NONE // TODO may move to main.c
-  SysTick_Config( CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE)/BOARD_TICKS_HZ );	/* 1 ms Timer */
-#endif
-
-  //------------- USB Bus power HOST ONLY-------------//
-  scu_pinmux(0x1, 7, MD_PUP | MD_EZI, FUNC4);	// P1_7 USB0_PWR_EN, USB0 VBus function Xplorer
-
-  scu_pinmux(0x2, 6, MD_PUP | MD_EZI, FUNC4); // P2_6 is configured as GPIO5[6] for USB1_PWR_EN
-  GPIO_SetDir   (5, BIT_(6), 1);              // GPIO5[6] is output
-  GPIO_SetValue (5, BIT_(6));                 // GPIO5[6] output high
-
-  //------------- LED -------------//
-  for (uint8_t i=0; i<BOARD_MAX_LEDS; i++)
-  {
-    scu_pinmux(leds[i].mux_port, leds[i].mux_pin, MD_PUP|MD_EZI|MD_ZI, FUNC0);
-    GPIO_SetDir(leds[i].gpio_port, BIT_(leds[i].gpio_pin), 1); // output
-  }
-
-  //------------- BUTTONS -------------//
-  for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++)
-  {
-    scu_pinmux(buttons[i].mux_port, buttons[i].mux_pin, GPIO_NOPULL, FUNC0);
-    GPIO_SetDir(buttons[i].gpio_port, BIT_(buttons[i].gpio_pin), 0);
-  }
-
-  //------------- UART init -------------//
-  scu_pinmux(0x6 ,4, MD_PDN | MD_EZI, FUNC2); 	// UART0_TXD
-  scu_pinmux(0x6 ,5, MD_PDN | MD_EZI, FUNC2); 	// UART0_RXD
-
-  UART_CFG_Type UARTConfigStruct;
-  UART_ConfigStructInit(&UARTConfigStruct);                   // default: baud = 9600, 8 bit data, 1 stop bit, no parity
-  UARTConfigStruct.Baud_rate   = CFG_UART_BAUDRATE;           // Re-configure baudrate
-  UARTConfigStruct.Clock_Speed = 0;
-
-  UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
-  UART_TxCmd(BOARD_UART_PORT, ENABLE);           // Enable UART
-}
-
-//--------------------------------------------------------------------+
-// LEDS
-//--------------------------------------------------------------------+
-void board_leds(uint32_t on_mask, uint32_t off_mask)
-{
-  for (uint32_t i=0; i<BOARD_MAX_LEDS; i++)
-  {
-    if ( on_mask & BIT_(i))
-    {
-      GPIO_SetValue(leds[i].gpio_port, BIT_(leds[i].gpio_pin));
-    }else if ( off_mask & BIT_(i)) // on_mask take precedence over off_mask
-    {
-      GPIO_ClearValue(leds[i].gpio_port, BIT_(leds[i].gpio_pin));
-    }
-  }
-}
-
-//--------------------------------------------------------------------+
-// BUTTONS
-//--------------------------------------------------------------------+
-static bool button_read(uint8_t id)
-{
-  return !BIT_TEST_( GPIO_ReadValue(buttons[id].gpio_port), buttons[id].gpio_pin ); // button is active low
-}
-
-uint32_t board_buttons(void)
-{
-  uint32_t result = 0;
-
-  for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++) result |= (button_read(i) ? BIT_(i) : 0);
-
-  return result;
-}
-
-//--------------------------------------------------------------------+
-// UART
-//--------------------------------------------------------------------+
-uint8_t  board_uart_getchar(void)
-{
-  return UART_ReceiveByte(BOARD_UART_PORT);
-}
-
-void board_uart_putchar(uint8_t c)
-{
-  UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
-}
-
-#endif
diff --git a/hw/bsp/ngx/board_ngx4330.h b/hw/bsp/ngx/board_ngx4330.h
deleted file mode 100644
index c5e2d0e2..00000000
--- a/hw/bsp/ngx/board_ngx4330.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/**************************************************************************/
-/*!
-    @file     board_ngx4330.h
-    @author   hathach (tinyusb.org)
-
-    @section LICENSE
-
-    Software License Agreement (BSD License)
-
-    Copyright (c) 2013, hathach (tinyusb.org)
-    All rights reserved.
-
-    Redistribution and use in source and binary forms, with or without
-    modification, are permitted provided that the following conditions are met:
-    1. Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the
-    documentation and/or other materials provided with the distribution.
-    3. Neither the name of the copyright holders nor the
-    names of its contributors may be used to endorse or promote products
-    derived from this software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
-    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
-    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-    This file is part of the tinyusb stack.
-*/
-/**************************************************************************/
-
-#ifndef _TUSB_BOARD_NGX4330_H_
-#define _TUSB_BOARD_NGX4330_H_
-
-#include "LPC43xx.h"
-#include "lpc43xx_scu.h"
-#include "lpc43xx_cgu.h"
-#include "lpc43xx_gpio.h"
-#include "lpc43xx_uart.h"
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-#define CFG_PRINTF_TARGET       PRINTF_TARGET_UART
-//#define CFG_PRINTF_TARGET       PRINTF_TARGET_SWO
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* _TUSB_BOARD_NGX4330_H_ */
diff --git a/hw/bsp/readme.md b/hw/bsp/readme.md
index 3b244c3a..3f6f7eb8 100644
--- a/hw/bsp/readme.md
+++ b/hw/bsp/readme.md
@@ -6,12 +6,11 @@ This code base already had supported for a handful of boards. However due to my
 
 ### NXP MCU ###
 
-- [LPCXpresso 11u14](http://www.embeddedartists.com/products/lpcxpresso/lpc11U14_xpr.php) with base board (for some peripherals to work)
+- LPCXpresso 11U68
 - [**LPCXpresso 1347**](http://www.embeddedartists.com/products/lpcxpresso/lpc1347_xpr.php) with base board (for some peripherals to work)
 - [**LPCXpresso 1769**](http://www.embeddedartists.com/products/lpcxpresso/lpc1347_xpr.php) with base board (for some peripherals to work)
+- [Keil MCB1800 Evaluation Board](http://www.keil.com/mcb1800)
 - [**Embedded Artists LPC4357 OEM & Base board**](http://www.embeddedartists.com/products/kits/lpc4357_kit.php)
-- [**NGX LPC4330 Explorer**](http://shop.ngxtechnologies.com/product_info.php?products_id=104)
-- [Keil MCB4357 Evaluation Board](http://www.keil.com/mcb4300)
 
 ### MicroChip SAMD ###