added mbed lpc1768 board

hw/bsp/lpcxpresso1769/board.mk

@@ -11,20 +11,23 @@ CFLAGS += \
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/lpcxpresso1769/lpc1769.ld
 
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc175x_6x
+
 # TODO remove later
 SRC_C += src/portable/$(VENDOR)/$(CHIP_FAMILY)/hal_$(CHIP_FAMILY).c
 
 SRC_C += \
-	hw/mcu/nxp/lpc_driver/lpc_chip_175x_6x/src/chip_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_175x_6x/src/clock_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_175x_6x/src/gpio_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_175x_6x/src/iocon_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_175x_6x/src/sysctl_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_175x_6x/src/sysinit_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_175x_6x/src/uart_17xx_40xx.c
+	$(MCU_DIR)/cr_startup_lpc175x_6x.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/chip_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/clock_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/gpio_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/iocon_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/sysctl_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/sysinit_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/uart_17xx_40xx.c
 
 INC += \
-	$(TOP)/hw/mcu/nxp/lpc_driver/lpc_chip_175x_6x/inc
+	$(TOP)/$(MCU_DIR)/lpc_chip_175x_6x/inc
 
 # For TinyUSB port source
 VENDOR = nxp

hw/bsp/lpcxpresso1769/cr_startup_lpc175x_6x.c

@@ -1,371 +0,0 @@
-//*****************************************************************************
-// LPC175x_6x Microcontroller Startup code for use with LPCXpresso IDE
-//
-// Version : 140114
-//*****************************************************************************
-//
-// Copyright(C) NXP Semiconductors, 2014
-// All rights reserved.
-//
-// Software that is described herein is for illustrative purposes only
-// which provides customers with programming information regarding the
-// LPC products.  This software is supplied "AS IS" without any warranties of
-// any kind, and NXP Semiconductors and its licensor disclaim any and
-// all warranties, express or implied, including all implied warranties of
-// merchantability, fitness for a particular purpose and non-infringement of
-// intellectual property rights.  NXP Semiconductors assumes no responsibility
-// or liability for the use of the software, conveys no license or rights under any
-// patent, copyright, mask work right, or any other intellectual property rights in
-// or to any products. NXP Semiconductors reserves the right to make changes
-// in the software without notification. NXP Semiconductors also makes no
-// representation or warranty that such application will be suitable for the
-// specified use without further testing or modification.
-//
-// Permission to use, copy, modify, and distribute this software and its
-// documentation is hereby granted, under NXP Semiconductors' and its
-// licensor's relevant copyrights in the software, without fee, provided that it
-// is used in conjunction with NXP Semiconductors microcontrollers.  This
-// copyright, permission, and disclaimer notice must appear in all copies of
-// this code.
-//*****************************************************************************
-
-#if defined (__cplusplus)
-#ifdef __REDLIB__
-#error Redlib does not support C++
-#else
-//*****************************************************************************
-//
-// The entry point for the C++ library startup
-//
-//*****************************************************************************
-extern "C" {
-    extern void __libc_init_array(void);
-}
-#endif
-#endif
-
-#define WEAK __attribute__ ((weak))
-#define ALIAS(f) __attribute__ ((weak, alias (#f)))
-
-//*****************************************************************************
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
-//*****************************************************************************
-#if defined (__USE_CMSIS) || defined (__USE_LPCOPEN)
-// Declaration of external SystemInit function
-extern void SystemInit(void);
-#endif
-
-//*****************************************************************************
-//
-// Forward declaration of the default handlers. These are aliased.
-// When the application defines a handler (with the same name), this will
-// automatically take precedence over these weak definitions
-//
-//*****************************************************************************
-     void ResetISR(void);
-WEAK void NMI_Handler(void);
-WEAK void HardFault_Handler(void);
-WEAK void MemManage_Handler(void);
-WEAK void BusFault_Handler(void);
-WEAK void UsageFault_Handler(void);
-WEAK void SVC_Handler(void);
-WEAK void DebugMon_Handler(void);
-WEAK void PendSV_Handler(void);
-WEAK void SysTick_Handler(void);
-WEAK void IntDefaultHandler(void);
-
-//*****************************************************************************
-//
-// Forward declaration of the specific IRQ handlers. These are aliased
-// to the IntDefaultHandler, which is a 'forever' loop. When the application
-// defines a handler (with the same name), this will automatically take
-// precedence over these weak definitions
-//
-//*****************************************************************************
-void WDT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void PWM1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2C0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2C1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2C2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SPI_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SSP0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SSP1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void PLL0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void RTC_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EINT0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EINT1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EINT2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EINT3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void ADC_IRQHandler(void) ALIAS(IntDefaultHandler);
-void BOD_IRQHandler(void) ALIAS(IntDefaultHandler);
-void USB_IRQHandler(void) ALIAS(IntDefaultHandler);
-void CAN_IRQHandler(void) ALIAS(IntDefaultHandler);
-void DMA_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2S_IRQHandler(void) ALIAS(IntDefaultHandler);
-#if defined (__USE_LPCOPEN)
-void ETH_IRQHandler(void) ALIAS(IntDefaultHandler);
-#else
-void ENET_IRQHandler(void) ALIAS(IntDefaultHandler);
-#endif
-void RIT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void MCPWM_IRQHandler(void) ALIAS(IntDefaultHandler);
-void QEI_IRQHandler(void) ALIAS(IntDefaultHandler);
-void PLL1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void USBActivity_IRQHandler(void) ALIAS(IntDefaultHandler);
-void CANActivity_IRQHandler(void) ALIAS(IntDefaultHandler);
-
-//*****************************************************************************
-//
-// The entry point for the application.
-// __main() is the entry point for Redlib based applications
-// main() is the entry point for Newlib based applications
-//
-//*****************************************************************************
-#if defined (__REDLIB__)
-extern void __main(void);
-#endif
-extern int main(void);
-//*****************************************************************************
-//
-// External declaration for the pointer to the stack top from the Linker Script
-//
-//*****************************************************************************
-extern void _vStackTop(void);
-
-//*****************************************************************************
-#if defined (__cplusplus)
-} // extern "C"
-#endif
-//*****************************************************************************
-//
-// The vector table.
-// This relies on the linker script to place at correct location in memory.
-//
-//*****************************************************************************
-extern void (* const g_pfnVectors[])(void);
-__attribute__ ((section(".isr_vector"))) __attribute__ ((used))
-void (* const g_pfnVectors[])(void) = {
-    // Core Level - CM3
-    &_vStackTop, // The initial stack pointer
-    ResetISR,                               // The reset handler
-    NMI_Handler,                            // The NMI handler
-    HardFault_Handler,                      // The hard fault handler
-    MemManage_Handler,                      // The MPU fault handler
-    BusFault_Handler,                       // The bus fault handler
-    UsageFault_Handler,                     // The usage fault handler
-    0,                                      // Reserved
-    0,                                      // Reserved
-    0,                                      // Reserved
-    0,                                      // Reserved
-    SVC_Handler,                            // SVCall handler
-    DebugMon_Handler,                       // Debug monitor handler
-    0,                                      // Reserved
-    PendSV_Handler,                         // The PendSV handler
-    SysTick_Handler,                        // The SysTick handler
-
-    // Chip Level - LPC17
-    WDT_IRQHandler,                         // 16, 0x40 - WDT
-    TIMER0_IRQHandler,                      // 17, 0x44 - TIMER0
-    TIMER1_IRQHandler,                      // 18, 0x48 - TIMER1
-    TIMER2_IRQHandler,                      // 19, 0x4c - TIMER2
-    TIMER3_IRQHandler,                      // 20, 0x50 - TIMER3
-    UART0_IRQHandler,                       // 21, 0x54 - UART0
-    UART1_IRQHandler,                       // 22, 0x58 - UART1
-    UART2_IRQHandler,                       // 23, 0x5c - UART2
-    UART3_IRQHandler,                       // 24, 0x60 - UART3
-    PWM1_IRQHandler,                        // 25, 0x64 - PWM1
-    I2C0_IRQHandler,                        // 26, 0x68 - I2C0
-    I2C1_IRQHandler,                        // 27, 0x6c - I2C1
-    I2C2_IRQHandler,                        // 28, 0x70 - I2C2
-    SPI_IRQHandler,                         // 29, 0x74 - SPI
-    SSP0_IRQHandler,                        // 30, 0x78 - SSP0
-    SSP1_IRQHandler,                        // 31, 0x7c - SSP1
-    PLL0_IRQHandler,                        // 32, 0x80 - PLL0 (Main PLL)
-    RTC_IRQHandler,                         // 33, 0x84 - RTC
-    EINT0_IRQHandler,                       // 34, 0x88 - EINT0
-    EINT1_IRQHandler,                       // 35, 0x8c - EINT1
-    EINT2_IRQHandler,                       // 36, 0x90 - EINT2
-    EINT3_IRQHandler,                       // 37, 0x94 - EINT3
-    ADC_IRQHandler,                         // 38, 0x98 - ADC
-    BOD_IRQHandler,                         // 39, 0x9c - BOD
-    USB_IRQHandler,                         // 40, 0xA0 - USB
-    CAN_IRQHandler,                         // 41, 0xa4 - CAN
-    DMA_IRQHandler,                         // 42, 0xa8 - GP DMA
-    I2S_IRQHandler,                         // 43, 0xac - I2S
-#if defined (__USE_LPCOPEN)
-    ETH_IRQHandler,                         // 44, 0xb0 - Ethernet
-#else
-    ENET_IRQHandler,                        // 44, 0xb0 - Ethernet
-#endif
-    RIT_IRQHandler,                         // 45, 0xb4 - RITINT
-    MCPWM_IRQHandler,                       // 46, 0xb8 - Motor Control PWM
-    QEI_IRQHandler,                         // 47, 0xbc - Quadrature Encoder
-    PLL1_IRQHandler,                        // 48, 0xc0 - PLL1 (USB PLL)
-    USBActivity_IRQHandler,                 // 49, 0xc4 - USB Activity interrupt to wakeup
-    CANActivity_IRQHandler,                 // 50, 0xc8 - CAN Activity interrupt to wakeup
-};
-
-//*****************************************************************************
-// Functions to carry out the initialization of RW and BSS data sections. These
-// are written as separate functions rather than being inlined within the
-// ResetISR() function in order to cope with MCUs with multiple banks of
-// memory.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void data_init(unsigned int romstart, unsigned int start, unsigned int len) {
-    unsigned int *pulDest = (unsigned int*) start;
-    unsigned int *pulSrc = (unsigned int*) romstart;
-    unsigned int loop;
-    for (loop = 0; loop < len; loop = loop + 4)
-        *pulDest++ = *pulSrc++;
-}
-
-__attribute__ ((section(".after_vectors")))
-void bss_init(unsigned int start, unsigned int len) {
-    unsigned int *pulDest = (unsigned int*) start;
-    unsigned int loop;
-    for (loop = 0; loop < len; loop = loop + 4)
-        *pulDest++ = 0;
-}
-
-//*****************************************************************************
-// The following symbols are constructs generated by the linker, indicating
-// the location of various points in the "Global Section Table". This table is
-// created by the linker via the Code Red managed linker script mechanism. It
-// contains the load address, execution address and length of each RW data
-// section and the execution and length of each BSS (zero initialized) section.
-//*****************************************************************************
-extern unsigned int __data_section_table;
-extern unsigned int __data_section_table_end;
-extern unsigned int __bss_section_table;
-extern unsigned int __bss_section_table_end;
-
-//*****************************************************************************
-// Reset entry point for your code.
-// Sets up a simple runtime environment and initializes the C/C++
-// library.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void
-ResetISR(void) {
-
-    //
-    // Copy the data sections from flash to SRAM.
-    //
-    unsigned int LoadAddr, ExeAddr, SectionLen;
-    unsigned int *SectionTableAddr;
-
-    // Load base address of Global Section Table
-    SectionTableAddr = &__data_section_table;
-
-    // Copy the data sections from flash to SRAM.
-    while (SectionTableAddr < &__data_section_table_end) {
-        LoadAddr = *SectionTableAddr++;
-        ExeAddr = *SectionTableAddr++;
-        SectionLen = *SectionTableAddr++;
-        data_init(LoadAddr, ExeAddr, SectionLen);
-    }
-    // At this point, SectionTableAddr = &__bss_section_table;
-    // Zero fill the bss segment
-    while (SectionTableAddr < &__bss_section_table_end) {
-        ExeAddr = *SectionTableAddr++;
-        SectionLen = *SectionTableAddr++;
-        bss_init(ExeAddr, SectionLen);
-    }
-
-#if defined (__USE_CMSIS) || defined (__USE_LPCOPEN)
-    SystemInit();
-#endif
-
-#if defined (__cplusplus)
-    //
-    // Call C++ library initialisation
-    //
-    __libc_init_array();
-#endif
-
-#if defined (__REDLIB__)
-    // Call the Redlib library, which in turn calls main()
-    __main() ;
-#else
-    main();
-#endif
-
-    //
-    // main() shouldn't return, but if it does, we'll just enter an infinite loop
-    //
-    while (1) {
-        ;
-    }
-}
-
-//*****************************************************************************
-// Default exception handlers. Override the ones here by defining your own
-// handler routines in your application code.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void NMI_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void HardFault_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void MemManage_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void BusFault_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void UsageFault_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void SVC_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void DebugMon_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void PendSV_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void SysTick_Handler(void)
-{ while(1) {}
-}
-
-//*****************************************************************************
-//
-// Processor ends up here if an unexpected interrupt occurs or a specific
-// handler is not present in the application code.
-//
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void IntDefaultHandler(void)
-{ while(1) {}
-}

hw/bsp/lpcxpresso1769/lpcxpresso1769.c

@@ -27,12 +27,14 @@
 #include "chip.h"
 #include "../board.h"
 
-#define LED_PORT      0
-#define LED_PIN       22
+#define LED_PORT              0
+#define LED_PIN               22
+#define LED_STATE_ON          1
 
-// Joytick Down if connected to LPCXpresso Base board
-#define BUTTON_PORT   0
-#define BUTTON_PIN    15
+// JOYSTICK_DOWN if using LPCXpresso Base Board
+#define BUTTON_PORT           0
+#define BUTTON_PIN            15
+#define BUTTON_STATE_ACTIVE   0
 
 #define BOARD_UART_PORT   LPC_UART3
 
@@ -45,14 +47,14 @@ static const PINMUX_GRP_T pinmuxing[] =
 {
   {0,  0,   IOCON_MODE_INACT | IOCON_FUNC2},	/* TXD3 */
   {0,  1,   IOCON_MODE_INACT | IOCON_FUNC2},	/* RXD3 */
-  {0,  22,  IOCON_MODE_INACT | IOCON_FUNC0},	/* Led 0 */
+  {LED_PORT, LED_PIN,  IOCON_MODE_INACT | IOCON_FUNC0},	/* Led 0 */
 
   /* Joystick buttons. */
-  {2, 3,  IOCON_MODE_INACT | IOCON_FUNC0},	/* JOYSTICK_UP */
-  {0, 15, IOCON_MODE_INACT | IOCON_FUNC0},	/* JOYSTICK_DOWN */
-  {2, 4,  IOCON_MODE_INACT | IOCON_FUNC0},	/* JOYSTICK_LEFT */
-  {0, 16, IOCON_MODE_INACT | IOCON_FUNC0},	/* JOYSTICK_RIGHT */
-  {0, 17, IOCON_MODE_INACT | IOCON_FUNC0},	/* JOYSTICK_PRESS */
+//  {2, 3,  IOCON_MODE_INACT | IOCON_FUNC0},	/* JOYSTICK_UP */
+  {BUTTON_PORT, BUTTON_PIN, IOCON_FUNC0 | IOCON_MODE_PULLUP},	/* JOYSTICK_DOWN */
+//  {2, 4,  IOCON_MODE_INACT | IOCON_FUNC0},	/* JOYSTICK_LEFT */
+//  {0, 16, IOCON_MODE_INACT | IOCON_FUNC0},	/* JOYSTICK_RIGHT */
+//  {0, 17, IOCON_MODE_INACT | IOCON_FUNC0},	/* JOYSTICK_PRESS */
 };
 
 static const PINMUX_GRP_T pin_usb_mux[] =
@@ -147,13 +149,12 @@ void board_init(void)
 
 void board_led_write(bool state)
 {
-  Chip_GPIO_SetPinState(LPC_GPIO, LED_PORT, LED_PIN, state);
+  Chip_GPIO_SetPinState(LPC_GPIO, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
 }
 
 uint32_t board_button_read(void)
 {
-  // active low
-  return Chip_GPIO_GetPinState(LPC_GPIO, BUTTON_PORT, BUTTON_PIN) ? 0 : 1;
+  return BUTTON_STATE_ACTIVE == Chip_GPIO_GetPinState(LPC_GPIO, BUTTON_PORT, BUTTON_PIN);
 }
 
 int board_uart_read(uint8_t* buf, int len)

hw/bsp/mbed1768/board.mk

@@ -0,0 +1,44 @@
+CFLAGS += \
+  -mthumb \
+  -mabi=aapcs \
+  -mcpu=cortex-m3 \
+  -nostdlib \
+  -DCORE_M3 \
+  -D__USE_LPCOPEN \
+  -DCFG_TUSB_MCU=OPT_MCU_LPC175X_6X \
+  -DRTC_EV_SUPPORT=0
+
+# All source paths should be relative to the top level.
+LD_FILE = hw/bsp/mbed1768/lpc1768.ld
+
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc175x_6x
+
+# TODO remove later
+SRC_C += src/portable/$(VENDOR)/$(CHIP_FAMILY)/hal_$(CHIP_FAMILY).c
+
+SRC_C += \
+	$(MCU_DIR)/cr_startup_lpc175x_6x.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/chip_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/clock_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/gpio_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/iocon_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/sysctl_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/sysinit_17xx_40xx.c \
+	$(MCU_DIR)/lpc_chip_175x_6x/src/uart_17xx_40xx.c
+
+INC += \
+	$(TOP)/$(MCU_DIR)/lpc_chip_175x_6x/inc
+
+# For TinyUSB port source
+VENDOR = nxp
+CHIP_FAMILY = lpc17_40
+
+# For freeRTOS port source
+FREERTOS_PORT = ARM_CM3
+
+# For flash-jlink target
+JLINK_DEVICE = LPC1768
+JLINK_IF = swd
+
+# flash using jlink
+flash: flash-jlink

hw/bsp/mbed1768/lpc1768.ld

@@ -0,0 +1,184 @@
+/*
+ * GENERATED FILE - DO NOT EDIT
+ * (c) Code Red Technologies Ltd, 2008-2013
+ * (c) NXP Semiconductors 2013-2019
+ * Generated linker script file for LPC1769
+ * Created from linkscript.ldt by FMCreateLinkLibraries
+ * Using Freemarker v2.3.23
+ * MCUXpresso IDE v10.2.1 [Build 795] [2018-07-25] on May 14, 2019 6:39:29 PM
+ */
+
+MEMORY
+{
+  /* Define each memory region */
+  MFlash512 (rx) : ORIGIN = 0x0, LENGTH = 0x80000 /* 512K bytes (alias Flash) */  
+  RamLoc32 (rwx) : ORIGIN = 0x10000000, LENGTH = 0x8000 /* 32K bytes (alias RAM) */  
+  RamAHB32 (rwx) : ORIGIN = 0x2007c000, LENGTH = 0x8000 /* 32K bytes (alias RAM2) */  
+}
+
+  /* Define a symbol for the top of each memory region */
+  __base_MFlash512 = 0x0  ; /* MFlash512 */  
+  __base_Flash = 0x0 ; /* Flash */  
+  __top_MFlash512 = 0x0 + 0x80000 ; /* 512K bytes */  
+  __top_Flash = 0x0 + 0x80000 ; /* 512K bytes */  
+  __base_RamLoc32 = 0x10000000  ; /* RamLoc32 */  
+  __base_RAM = 0x10000000 ; /* RAM */  
+  __top_RamLoc32 = 0x10000000 + 0x8000 ; /* 32K bytes */  
+  __top_RAM = 0x10000000 + 0x8000 ; /* 32K bytes */  
+  __base_RamAHB32 = 0x2007c000  ; /* RamAHB32 */  
+  __base_RAM2 = 0x2007c000 ; /* RAM2 */  
+  __top_RamAHB32 = 0x2007c000 + 0x8000 ; /* 32K bytes */  
+  __top_RAM2 = 0x2007c000 + 0x8000 ; /* 32K bytes */  
+
+ENTRY(ResetISR)
+
+SECTIONS
+{
+    /* MAIN TEXT SECTION */
+    .text : ALIGN(4)
+    {
+        FILL(0xff)
+        __vectors_start__ = ABSOLUTE(.) ;
+        KEEP(*(.isr_vector))
+        /* Global Section Table */
+        . = ALIGN(4) ;
+        __section_table_start = .;
+        __data_section_table = .;
+        LONG(LOADADDR(.data));
+        LONG(    ADDR(.data));
+        LONG(  SIZEOF(.data));
+        LONG(LOADADDR(.data_RAM2));
+        LONG(    ADDR(.data_RAM2));
+        LONG(  SIZEOF(.data_RAM2));
+        __data_section_table_end = .;
+        __bss_section_table = .;
+        LONG(    ADDR(.bss));
+        LONG(  SIZEOF(.bss));
+        LONG(    ADDR(.bss_RAM2));
+        LONG(  SIZEOF(.bss_RAM2));
+        __bss_section_table_end = .;
+        __section_table_end = . ;
+        /* End of Global Section Table */
+
+        *(.after_vectors*)
+
+    } > MFlash512
+
+    .text : ALIGN(4)
+    {
+       *(.text*)
+       *(.rodata .rodata.* .constdata .constdata.*)
+       . = ALIGN(4);
+    } > MFlash512
+    /*
+     * for exception handling/unwind - some Newlib functions (in common
+     * with C++ and STDC++) use this. 
+     */
+    .ARM.extab : ALIGN(4) 
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+    } > MFlash512
+
+    __exidx_start = .;
+
+    .ARM.exidx : ALIGN(4)
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+    } > MFlash512
+    __exidx_end = .;
+
+    _etext = .;
+        
+    /* DATA section for RamAHB32 */
+
+    .data_RAM2 : ALIGN(4)
+    {
+        FILL(0xff)
+        PROVIDE(__start_data_RAM2 = .) ;
+        *(.ramfunc.$RAM2)
+        *(.ramfunc.$RamAHB32)
+        *(.data.$RAM2*)
+        *(.data.$RamAHB32*)
+        . = ALIGN(4) ;
+        PROVIDE(__end_data_RAM2 = .) ;
+     } > RamAHB32 AT>MFlash512
+    /* MAIN DATA SECTION */
+    .uninit_RESERVED : ALIGN(4)
+    {
+        KEEP(*(.bss.$RESERVED*))
+        . = ALIGN(4) ;
+        _end_uninit_RESERVED = .;
+    } > RamLoc32
+
+    /* Main DATA section (RamLoc32) */
+    .data : ALIGN(4)
+    {
+       FILL(0xff)
+       _data = . ;
+       *(vtable)
+       *(.ramfunc*)
+       *(.data*)
+       . = ALIGN(4) ;
+       _edata = . ;
+    } > RamLoc32 AT>MFlash512
+
+    /* BSS section for RamAHB32 */
+    .bss_RAM2 : ALIGN(4)
+    {
+       PROVIDE(__start_bss_RAM2 = .) ;
+       *(.bss.$RAM2*)
+       *(.bss.$RamAHB32*)
+       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
+       PROVIDE(__end_bss_RAM2 = .) ;
+    } > RamAHB32 
+
+    /* MAIN BSS SECTION */
+    .bss : ALIGN(4)
+    {
+        _bss = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(4) ;
+        _ebss = .;
+        PROVIDE(end = .);
+    } > RamLoc32
+
+    /* NOINIT section for RamAHB32 */
+    .noinit_RAM2 (NOLOAD) : ALIGN(4)
+    {
+       *(.noinit.$RAM2*)
+       *(.noinit.$RamAHB32*)
+       . = ALIGN(4) ;
+    } > RamAHB32 
+
+    /* DEFAULT NOINIT SECTION */
+    .noinit (NOLOAD): ALIGN(4)
+    {
+        _noinit = .;
+        *(.noinit*) 
+         . = ALIGN(4) ;
+        _end_noinit = .;
+    } > RamLoc32
+    PROVIDE(_pvHeapStart = DEFINED(__user_heap_base) ? __user_heap_base : .);
+    PROVIDE(_vStackTop = DEFINED(__user_stack_top) ? __user_stack_top : __top_RamLoc32 - 0);
+
+    /* ## Create checksum value (used in startup) ## */
+    PROVIDE(__valid_user_code_checksum = 0 - 
+                                         (_vStackTop 
+                                         + (ResetISR + 1) 
+                                         + (NMI_Handler + 1) 
+                                         + (HardFault_Handler + 1) 
+                                         + (( DEFINED(MemManage_Handler) ? MemManage_Handler : 0 ) + 1)   /* MemManage_Handler may not be defined */
+                                         + (( DEFINED(BusFault_Handler) ? BusFault_Handler : 0 ) + 1)     /* BusFault_Handler may not be defined */
+                                         + (( DEFINED(UsageFault_Handler) ? UsageFault_Handler : 0 ) + 1) /* UsageFault_Handler may not be defined */
+                                         ) );
+
+    /* Provide basic symbols giving location and size of main text
+     * block, including initial values of RW data sections. Note that
+     * these will need extending to give a complete picture with
+     * complex images (e.g multiple Flash banks).
+     */
+    _image_start = LOADADDR(.text);
+    _image_end = LOADADDR(.data) + SIZEOF(.data);
+    _image_size = _image_end - _image_start;
+}

hw/bsp/mbed1768/mbed1768.c

@@ -0,0 +1,179 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "chip.h"
+#include "../board.h"
+
+#define LED_PORT              1
+#define LED_PIN               18
+#define LED_STATE_ON          1
+
+// JOYSTICK_DOWN if using LPCXpresso Base Board
+#define BUTTON_PORT           0
+#define BUTTON_PIN            15
+#define BUTTON_STATE_ACTIVE   0
+
+#define BOARD_UART_PORT   LPC_UART3
+
+/* System oscillator rate and RTC oscillator rate */
+const uint32_t OscRateIn = 10000000;
+const uint32_t RTCOscRateIn = 32768;
+
+/* Pin muxing configuration */
+static const PINMUX_GRP_T pinmuxing[] =
+{
+  {LED_PORT,  LED_PIN,  IOCON_MODE_INACT | IOCON_FUNC0},
+  {BUTTON_PORT, BUTTON_PIN, IOCON_FUNC0 | IOCON_MODE_PULLUP},
+};
+
+static const PINMUX_GRP_T pin_usb_mux[] =
+{
+  {0, 29, IOCON_MODE_INACT | IOCON_FUNC1}, // D+
+  {0, 30, IOCON_MODE_INACT | IOCON_FUNC1}, // D-
+  {2,  9, IOCON_MODE_INACT | IOCON_FUNC1}, // Connect
+
+  {1, 19, IOCON_MODE_INACT | IOCON_FUNC2}, // USB_PPWR
+  {1, 22, IOCON_MODE_INACT | IOCON_FUNC2}, // USB_PWRD
+
+  /* VBUS is not connected on this board, so leave the pin at default setting. */
+  /*Chip_IOCON_PinMux(LPC_IOCON, 1, 30, IOCON_MODE_INACT, IOCON_FUNC2);*/ /* USB VBUS */
+};
+
+// Invoked by startup code
+void SystemInit(void)
+{
+  Chip_IOCON_Init(LPC_IOCON);
+  Chip_IOCON_SetPinMuxing(LPC_IOCON, pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));
+  Chip_SetupXtalClocking();
+}
+
+void board_init(void)
+{
+  SystemCoreClockUpdate();
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+  // 1ms tick timer
+  SysTick_Config(SystemCoreClock / 1000);
+#elif CFG_TUSB_OS == OPT_OS_FREERTOS
+  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
+  NVIC_SetPriority(USB_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
+#endif
+
+  Chip_GPIO_Init(LPC_GPIO);
+
+  // LED
+  Chip_GPIO_SetPinDIROutput(LPC_GPIO, LED_PORT, LED_PIN);
+
+  // Button
+  Chip_GPIO_SetPinDIRInput(LPC_GPIO, BUTTON_PORT, BUTTON_PIN);
+
+#if 0
+  //------------- UART -------------//
+  PINSEL_CFG_Type PinCfg =
+  {
+      .Portnum   = 0,
+      .Pinnum    = 0, // TXD is P0.0
+      .Funcnum   = 2,
+      .OpenDrain = 0,
+      .Pinmode   = 0
+  };
+	PINSEL_ConfigPin(&PinCfg);
+
+	PinCfg.Portnum = 0;
+	PinCfg.Pinnum  = 1; // RXD is P0.1
+	PINSEL_ConfigPin(&PinCfg);
+
+	UART_CFG_Type UARTConfigStruct;
+  UART_ConfigStructInit(&UARTConfigStruct);
+	UARTConfigStruct.Baud_rate = CFG_UART_BAUDRATE;
+
+	UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
+	UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
+#endif
+
+	//------------- USB -------------//
+  Chip_IOCON_SetPinMuxing(LPC_IOCON, pin_usb_mux, sizeof(pin_usb_mux) / sizeof(PINMUX_GRP_T));
+	Chip_USB_Init();
+
+  enum {
+    USBCLK_DEVCIE = 0x12,     // AHB + Device
+    USBCLK_HOST   = 0x19,     // AHB + Host + OTG
+//    0x1B // Host + Device + OTG + AHB
+  };
+
+  uint32_t const clk_en = TUSB_OPT_DEVICE_ENABLED ? USBCLK_DEVCIE : USBCLK_HOST;
+
+  LPC_USB->OTGClkCtrl = clk_en;
+  while ( (LPC_USB->OTGClkSt & clk_en) != clk_en );
+
+#if TUSB_OPT_HOST_ENABLED
+  // set portfunc to host !!!
+  LPC_USB->StCtrl = 0x3; // should be 1
+#endif
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+  Chip_GPIO_SetPinState(LPC_GPIO, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
+}
+
+uint32_t board_button_read(void)
+{
+  return BUTTON_STATE_ACTIVE == Chip_GPIO_GetPinState(LPC_GPIO, BUTTON_PORT, BUTTON_PIN);
+}
+
+int board_uart_read(uint8_t* buf, int len)
+{
+//  return UART_ReceiveByte(BOARD_UART_PORT);
+  (void) buf;
+  (void) len;
+  return 0;
+}
+
+int board_uart_write(void const * buf, int len)
+{
+//  UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
+  (void) buf;
+  (void) len;
+  return 0;
+}
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler (void)
+{
+  system_ticks++;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif

hw/bsp/stm32f411disco/board.mk

@@ -1,12 +1,12 @@
 CFLAGS += \
   -DHSE_VALUE=8000000 \
-  -DCFG_TUSB_MCU=OPT_MCU_STM32F4 \
   -DSTM32F411xE \
   -mthumb \
   -mabi=aapcs-linux \
   -mcpu=cortex-m4 \
   -mfloat-abi=hard \
   -mfpu=fpv4-sp-d16 \
+  -DCFG_TUSB_MCU=OPT_MCU_STM32F4 \
   -nostdlib -nostartfiles
 
 # All source paths should be relative to the top level.

hw/mcu/nxp/lpc_driver

@@ -1 +1 @@
-Subproject commit 532887dbf60b486ffb77ca98c16e55c114846c3b
+Subproject commit 4f2ec98c1ad087556c0101a4f6ef330437aa4aa1