mcb1800 build and blinky with makefile

hw/bsp/mcb1800/board.mk

@@ -0,0 +1,39 @@
+CFLAGS += \
+  -mthumb \
+  -mabi=aapcs \
+  -mcpu=cortex-m3 \
+  -nostdlib \
+  -DCORE_M3 \
+  -DCFG_TUSB_MCU=OPT_MCU_LPC18XX \
+  -D__USE_LPCOPEN
+
+# All source paths should be relative to the top level.
+LD_FILE = hw/bsp/mcb1800/lpc1857.ld
+
+# TODO remove later
+SRC_C += src/portable/$(VENDOR)/$(CHIP_FAMILY)/hal_$(CHIP_FAMILY).c
+
+SRC_C += \
+	hw/mcu/nxp/lpcopen/lpc_chip_18xx/src/chip_18xx_43xx.c \
+	hw/mcu/nxp/lpcopen/lpc_chip_18xx/src/clock_18xx_43xx.c \
+	hw/mcu/nxp/lpcopen/lpc_chip_18xx/src/gpio_18xx_43xx.c \
+	hw/mcu/nxp/lpcopen/lpc_chip_18xx/src/sysinit_18xx_43xx.c \
+	hw/mcu/nxp/lpcopen/lpc_chip_18xx/src/uart_18xx_43xx.c
+
+INC += \
+	$(TOP)/hw/mcu/nxp/lpcopen/lpc_chip_18xx/inc \
+	$(TOP)/hw/mcu/nxp/lpcopen/lpc_chip_18xx/inc/config_18xx
+
+# For TinyUSB port source
+VENDOR = nxp
+CHIP_FAMILY = lpc18_43
+
+# For freeRTOS port source
+FREERTOS_PORT = ARM_CM3
+
+# For flash-jlink target
+JLINK_DEVICE = LPC1857
+JLINK_IF = swd
+
+# flash using jlink
+flash: flash-jlink

hw/bsp/mcb1800/board_mcb1800.c

@@ -30,24 +30,28 @@
 #define LED_PORT  6
 #define LED_PIN   24
 
+#define BUTTON_PORT   4
+#define BUTTON_PIN    0
+
+
 //--------------------------------------------------------------------+
 // MACRO TYPEDEF CONSTANT ENUM DECLARATION
 //--------------------------------------------------------------------+
 /* System configuration variables used by chip driver */
-const uint32_t ExtRateIn = 0;
 const uint32_t OscRateIn = 12000000;
+const uint32_t ExtRateIn = 0;
 
 static const PINMUX_GRP_T pinmuxing[] =
 {
 	/* Board LEDs */
 	{0xD, 10, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4)},
-	{0xD, 11, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4)},
-	{0xD, 12, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4)},
-	{0xD, 13, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4)},
-	{0xD, 14, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4)},
-	{0x9, 0,  (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0)},
-	{0x9, 1,  (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0)},
-	{0x9, 2,  (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0)},
+	{0xD, 11, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4 | SCU_MODE_PULLDOWN)},
+	{0xD, 12, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4 | SCU_MODE_PULLDOWN)},
+	{0xD, 13, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4 | SCU_MODE_PULLDOWN)},
+	{0xD, 14, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4 | SCU_MODE_PULLDOWN)},
+	{0x9, 0,  (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0 | SCU_MODE_PULLDOWN)},
+	{0x9, 1,  (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0 | SCU_MODE_PULLDOWN)},
+	{0x9, 2,  (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0 | SCU_MODE_PULLDOWN)},
 
 	/*  I2S  */
 	{0x3, 0,  (SCU_PINIO_FAST | SCU_MODE_FUNC2)},
@@ -67,10 +71,6 @@ static const PINMUX_GRP_T pinclockmuxing[] =
 	{0, 3,  (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_HIGHSPEEDSLEW_EN | SCU_MODE_FUNC0)},
 };
 
-
-/*------------------------------------------------------------------*/
-/* BOARD API
- *------------------------------------------------------------------*/
 // Invoked by startup code
 void SystemInit(void)
 {
@@ -97,25 +97,13 @@ void board_init(void)
 
   Chip_GPIO_Init(LPC_GPIO_PORT);
 
-  //------------- LED -------------//
-  /* Port and bit mapping for LEDs on GPIOs */
-  const uint8_t ledports[] = {6, 6, 6, 6, 6, 4, 4, 4};
-  const uint8_t ledbits[] = {24, 25, 26, 27, 28, 12, 13, 14};
+  // LED
+  Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, LED_PORT, LED_PIN);
 
-  for (uint32_t i = 0; i < (sizeof(ledports) / sizeof(ledports[0])); i++) 
-  {
-    Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, ledports[i], ledbits[i]);
-    Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, false);
-  }
+  // Button
+  Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN);
 
 #if 0
-  //------------- BUTTON -------------//
-  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, TU_BIT(buttons[i].gpio_pin), 0);
-  }
-
   //------------- 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);
@@ -177,21 +165,27 @@ void board_init(void)
 #endif
 }
 
-//------------- LED -------------//
-void board_led_write(bool state)
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler (void)
 {
-  Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state);
+  system_ticks++;
 }
 
-//------------- Buttons -------------//
-/*
-static bool button_read(uint8_t id)
+uint32_t board_millis(void)
 {
-  (void) id;
-//  return !tu_bit_test( GPIO_ReadValue(buttons[id].gpio_port), buttons[id].gpio_pin ); // button is active low
-  return false;
+  return system_ticks;
+}
+#endif
+
+void board_led_write(bool state)
+{
+  Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state);
 }
-*/
 
 uint32_t board_button_read(void)
 {
@@ -203,7 +197,6 @@ uint32_t board_button_read(void)
 }
 
 
-//------------- UART -------------//
 int board_uart_read(uint8_t* buf, int len)
 {
   //return UART_ReceiveByte(BOARD_UART_PORT);
@@ -220,21 +213,4 @@ int board_uart_write(void const * buf, int len)
   return 0;
 }
 
-/*------------------------------------------------------------------*/
-/* TUSB HAL MILLISECOND
- *------------------------------------------------------------------*/
-#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/mcb1800/cr_startup_lpc18xx.c

@@ -0,0 +1,477 @@
+//*****************************************************************************
+// LPC18xx Microcontroller Startup code for use with LPCXpresso IDE
+//
+// Version : 150706
+//*****************************************************************************
+//
+// Copyright(C) NXP Semiconductors, 2013-2015
+// 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 DAC_IRQHandler(void) ALIAS(IntDefaultHandler);
+void DMA_IRQHandler(void) ALIAS(IntDefaultHandler);
+void FLASH_EEPROM_IRQHandler(void) ALIAS(IntDefaultHandler);
+void ETH_IRQHandler(void) ALIAS(IntDefaultHandler);
+void SDIO_IRQHandler(void) ALIAS(IntDefaultHandler);
+void LCD_IRQHandler(void) ALIAS(IntDefaultHandler);
+void USB0_IRQHandler(void) ALIAS(IntDefaultHandler);
+void USB1_IRQHandler(void) ALIAS(IntDefaultHandler);
+void SCT_IRQHandler(void) ALIAS(IntDefaultHandler);
+void RIT_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 MCPWM_IRQHandler(void) ALIAS(IntDefaultHandler);
+void ADC0_IRQHandler(void) ALIAS(IntDefaultHandler);
+void I2C0_IRQHandler(void) ALIAS(IntDefaultHandler);
+void I2C1_IRQHandler(void) ALIAS(IntDefaultHandler);
+void ADC1_IRQHandler(void) ALIAS(IntDefaultHandler);
+void SSP0_IRQHandler(void) ALIAS(IntDefaultHandler);
+void SSP1_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 I2S0_IRQHandler(void) ALIAS(IntDefaultHandler);
+void I2S1_IRQHandler(void) ALIAS(IntDefaultHandler);
+void SPIFI_IRQHandler(void) ALIAS(IntDefaultHandler);
+void SGPIO_IRQHandler(void) ALIAS(IntDefaultHandler);
+void GPIO0_IRQHandler(void) ALIAS(IntDefaultHandler);
+void GPIO1_IRQHandler(void) ALIAS(IntDefaultHandler);
+void GPIO2_IRQHandler(void) ALIAS(IntDefaultHandler);
+void GPIO3_IRQHandler(void) ALIAS(IntDefaultHandler);
+void GPIO4_IRQHandler(void) ALIAS(IntDefaultHandler);
+void GPIO5_IRQHandler(void) ALIAS(IntDefaultHandler);
+void GPIO6_IRQHandler(void) ALIAS(IntDefaultHandler);
+void GPIO7_IRQHandler(void) ALIAS(IntDefaultHandler);
+void GINT0_IRQHandler(void) ALIAS(IntDefaultHandler);
+void GINT1_IRQHandler(void) ALIAS(IntDefaultHandler);
+void EVRT_IRQHandler(void) ALIAS(IntDefaultHandler);
+void CAN1_IRQHandler(void) ALIAS(IntDefaultHandler);
+void ATIMER_IRQHandler(void) ALIAS(IntDefaultHandler);
+void RTC_IRQHandler(void) ALIAS(IntDefaultHandler);
+void WDT_IRQHandler(void) ALIAS(IntDefaultHandler);
+void CAN0_IRQHandler(void) ALIAS(IntDefaultHandler);
+void QEI_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);
+
+//*****************************************************************************
+//
+// External declaration for LPC MCU vector table checksum from  Linker Script
+//
+//*****************************************************************************
+WEAK extern void __valid_user_code_checksum(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__ ((used,section(".isr_vector")))
+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
+    __valid_user_code_checksum,             // LPC MCU Checksum
+    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 - LPC18
+    DAC_IRQHandler,             // 16
+    0,                          // 17
+    DMA_IRQHandler,             // 18
+    0,                          // 19
+    FLASH_EEPROM_IRQHandler,    // 20 ORed flash Bank A, flash Bank B, EEPROM interrupts
+    ETH_IRQHandler,             // 21
+    SDIO_IRQHandler,            // 22
+    LCD_IRQHandler,             // 23
+    USB0_IRQHandler,            // 24
+    USB1_IRQHandler,            // 25
+    SCT_IRQHandler,             // 26
+    RIT_IRQHandler,             // 27
+    TIMER0_IRQHandler,          // 28
+    TIMER1_IRQHandler,          // 29
+    TIMER2_IRQHandler,          // 30
+    TIMER3_IRQHandler,          // 31
+    MCPWM_IRQHandler,           // 32
+    ADC0_IRQHandler,            // 33
+    I2C0_IRQHandler,            // 34
+    I2C1_IRQHandler,            // 35
+    0,                          // 36
+    ADC1_IRQHandler,            // 37
+    SSP0_IRQHandler,            // 38
+    SSP1_IRQHandler,            // 39
+    UART0_IRQHandler,           // 40
+    UART1_IRQHandler,           // 41
+    UART2_IRQHandler,           // 42
+    UART3_IRQHandler,           // 43
+    I2S0_IRQHandler,            // 44
+    I2S1_IRQHandler,            // 45
+    SPIFI_IRQHandler,           // 46
+    SGPIO_IRQHandler,           // 47
+    GPIO0_IRQHandler,           // 48
+    GPIO1_IRQHandler,           // 49
+    GPIO2_IRQHandler,           // 50
+    GPIO3_IRQHandler,           // 51
+    GPIO4_IRQHandler,           // 52
+    GPIO5_IRQHandler,           // 53
+    GPIO6_IRQHandler,           // 54
+    GPIO7_IRQHandler,           // 55
+    GINT0_IRQHandler,           // 56
+    GINT1_IRQHandler,           // 57
+    EVRT_IRQHandler,            // 58
+    CAN1_IRQHandler,            // 59
+    0,                          // 60
+    0,                          // 61
+    ATIMER_IRQHandler,          // 62
+    RTC_IRQHandler,             // 63
+    0,                          // 64
+    WDT_IRQHandler,             // 65
+    0,                          // 66
+    CAN0_IRQHandler,            // 67
+    QEI_IRQHandler,             // 68
+};
+
+//*****************************************************************************
+// 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.
+//
+//*****************************************************************************
+void
+ResetISR(void) {
+
+// *************************************************************
+// The following conditional block of code manually resets as
+// much of the peripheral set of the LPC18 as possible. This is
+// done because the LPC18 does not provide a means of triggering
+// a full system reset under debugger control, which can cause
+// problems in certain circumstances when debugging.
+//
+// You can prevent this code block being included if you require
+// (for example when creating a final executable which you will
+// not debug) by setting the define 'DONT_RESET_ON_RESTART'.
+//
+#ifndef DONT_RESET_ON_RESTART
+
+    // Disable interrupts
+    __asm volatile ("cpsid i");
+    // equivalent to CMSIS '__disable_irq()' function
+
+    unsigned int *RESET_CONTROL = (unsigned int *) 0x40053100;
+    // LPC_RGU->RESET_CTRL0 @ 0x40053100
+    // LPC_RGU->RESET_CTRL1 @ 0x40053104
+    // Note that we do not use the CMSIS register access mechanism,
+    // as there is no guarantee that the project has been configured
+    // to use CMSIS.
+
+    // Write to LPC_RGU->RESET_CTRL0
+    *(RESET_CONTROL+0) = 0x10DF0000;
+    // GPIO_RST|AES_RST|ETHERNET_RST|SDIO_RST|DMA_RST|
+    // USB1_RST|USB0_RST|LCD_RST
+
+    // Write to LPC_RGU->RESET_CTRL1
+    *(RESET_CONTROL+1) = 0x00DFF7FF;
+    // CAN0_RST|CAN1_RST|I2S_RST|SSP1_RST|SSP0_RST|
+    // I2C1_RST|I2C0_RST|UART3_RST|UART1_RST|UART1_RST|UART0_RST|
+    // DAC_RST|ADC1_RST|ADC0_RST|QEI_RST|MOTOCONPWM_RST|SCT_RST|
+    // RITIMER_RST|TIMER3_RST|TIMER2_RST|TIMER1_RST|TIMER0_RST
+
+    // Clear all pending interrupts in the NVIC
+    volatile unsigned int *NVIC_ICPR = (unsigned int *) 0xE000E280;
+    unsigned int irqpendloop;
+    for (irqpendloop = 0; irqpendloop < 8; irqpendloop++) {
+        *(NVIC_ICPR+irqpendloop)= 0xFFFFFFFF;
+    }
+
+    // Reenable interrupts
+    __asm volatile ("cpsie i");
+    // equivalent to CMSIS '__enable_irq()' function
+
+#endif  // ifndef DONT_RESET_ON_RESTART
+// *************************************************************
+
+
+#if defined (__USE_LPCOPEN)
+    SystemInit();
+#endif
+
+    //
+    // 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);
+    }
+
+    // ******************************
+    // Check to see if we are running the code from a non-zero
+        // address (eg RAM, external flash), in which case we need
+        // to modify the VTOR register to tell the CPU that the
+        // vector table is located at a non-0x0 address.
+
+    // Note that we do not use the CMSIS register access mechanism,
+    // as there is no guarantee that the project has been configured
+    // to use CMSIS.
+    unsigned int * pSCB_VTOR = (unsigned int *) 0xE000ED08;
+    if ((unsigned int *)g_pfnVectors!=(unsigned int *) 0x00000000) {
+        // CMSIS : SCB->VTOR = <address of vector table>
+        *pSCB_VTOR = (unsigned int)g_pfnVectors;
+    }
+
+#if defined (__USE_CMSIS)
+    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/mcb1800/lpc1857.ld

@@ -0,0 +1,323 @@
+/*
+ * GENERATED FILE - DO NOT EDIT
+ * (c) Code Red Technologies Ltd, 2008-2013
+ * (c) NXP Semiconductors 2013-2019
+ * Generated linker script file for LPC1857
+ * Created from linkscript.ldt by FMCreateLinkLibraries
+ * Using Freemarker v2.3.23
+ * MCUXpresso IDE v10.2.1 [Build 795] [2018-07-25] on May 15, 2019 1:01:52 PM
+ */
+
+MEMORY
+{
+  /* Define each memory region */
+  MFlashA512 (rx) : ORIGIN = 0x1a000000, LENGTH = 0x80000 /* 512K bytes (alias Flash) */  
+  MFlashB512 (rx) : ORIGIN = 0x1b000000, LENGTH = 0x80000 /* 512K bytes (alias Flash2) */  
+  RamLoc32 (rwx) : ORIGIN = 0x10000000, LENGTH = 0x8000 /* 32K bytes (alias RAM) */  
+  RamLoc40 (rwx) : ORIGIN = 0x10080000, LENGTH = 0xa000 /* 40K bytes (alias RAM2) */  
+  RamAHB32 (rwx) : ORIGIN = 0x20000000, LENGTH = 0x8000 /* 32K bytes (alias RAM3) */  
+  RamAHB16 (rwx) : ORIGIN = 0x20008000, LENGTH = 0x4000 /* 16K bytes (alias RAM4) */  
+  RamAHB_ETB16 (rwx) : ORIGIN = 0x2000c000, LENGTH = 0x4000 /* 16K bytes (alias RAM5) */  
+}
+
+  /* Define a symbol for the top of each memory region */
+  __base_MFlashA512 = 0x1a000000  ; /* MFlashA512 */  
+  __base_Flash = 0x1a000000 ; /* Flash */  
+  __top_MFlashA512 = 0x1a000000 + 0x80000 ; /* 512K bytes */  
+  __top_Flash = 0x1a000000 + 0x80000 ; /* 512K bytes */  
+  __base_MFlashB512 = 0x1b000000  ; /* MFlashB512 */  
+  __base_Flash2 = 0x1b000000 ; /* Flash2 */  
+  __top_MFlashB512 = 0x1b000000 + 0x80000 ; /* 512K bytes */  
+  __top_Flash2 = 0x1b000000 + 0x80000 ; /* 512K bytes */  
+  __base_RamLoc32 = 0x10000000  ; /* RamLoc32 */  
+  __base_RAM = 0x10000000 ; /* RAM */  
+  __top_RamLoc32 = 0x10000000 + 0x8000 ; /* 32K bytes */  
+  __top_RAM = 0x10000000 + 0x8000 ; /* 32K bytes */  
+  __base_RamLoc40 = 0x10080000  ; /* RamLoc40 */  
+  __base_RAM2 = 0x10080000 ; /* RAM2 */  
+  __top_RamLoc40 = 0x10080000 + 0xa000 ; /* 40K bytes */  
+  __top_RAM2 = 0x10080000 + 0xa000 ; /* 40K bytes */  
+  __base_RamAHB32 = 0x20000000  ; /* RamAHB32 */  
+  __base_RAM3 = 0x20000000 ; /* RAM3 */  
+  __top_RamAHB32 = 0x20000000 + 0x8000 ; /* 32K bytes */  
+  __top_RAM3 = 0x20000000 + 0x8000 ; /* 32K bytes */  
+  __base_RamAHB16 = 0x20008000  ; /* RamAHB16 */  
+  __base_RAM4 = 0x20008000 ; /* RAM4 */  
+  __top_RamAHB16 = 0x20008000 + 0x4000 ; /* 16K bytes */  
+  __top_RAM4 = 0x20008000 + 0x4000 ; /* 16K bytes */  
+  __base_RamAHB_ETB16 = 0x2000c000  ; /* RamAHB_ETB16 */  
+  __base_RAM5 = 0x2000c000 ; /* RAM5 */  
+  __top_RamAHB_ETB16 = 0x2000c000 + 0x4000 ; /* 16K bytes */  
+  __top_RAM5 = 0x2000c000 + 0x4000 ; /* 16K bytes */  
+
+ENTRY(ResetISR)
+
+SECTIONS
+{
+    .text_Flash2 : ALIGN(4)
+    {
+       FILL(0xff)
+        *(.text_Flash2*) /* for compatibility with previous releases */
+        *(.text_MFlashB512*) /* for compatibility with previous releases */
+        *(.text.$Flash2*)
+        *(.text.$MFlashB512*)
+        *(.rodata.$Flash2*)
+        *(.rodata.$MFlashB512*)
+    } > MFlashB512
+
+    /* 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));
+        LONG(LOADADDR(.data_RAM3));
+        LONG(    ADDR(.data_RAM3));
+        LONG(  SIZEOF(.data_RAM3));
+        LONG(LOADADDR(.data_RAM4));
+        LONG(    ADDR(.data_RAM4));
+        LONG(  SIZEOF(.data_RAM4));
+        LONG(LOADADDR(.data_RAM5));
+        LONG(    ADDR(.data_RAM5));
+        LONG(  SIZEOF(.data_RAM5));
+        __data_section_table_end = .;
+        __bss_section_table = .;
+        LONG(    ADDR(.bss));
+        LONG(  SIZEOF(.bss));
+        LONG(    ADDR(.bss_RAM2));
+        LONG(  SIZEOF(.bss_RAM2));
+        LONG(    ADDR(.bss_RAM3));
+        LONG(  SIZEOF(.bss_RAM3));
+        LONG(    ADDR(.bss_RAM4));
+        LONG(  SIZEOF(.bss_RAM4));
+        LONG(    ADDR(.bss_RAM5));
+        LONG(  SIZEOF(.bss_RAM5));
+        __bss_section_table_end = .;
+        __section_table_end = . ;
+        /* End of Global Section Table */
+
+        *(.after_vectors*)
+
+    } > MFlashA512
+
+    .text : ALIGN(4)
+    {
+       *(.text*)
+       *(.rodata .rodata.* .constdata .constdata.*)
+       . = ALIGN(4);
+    } > MFlashA512
+    /*
+     * for exception handling/unwind - some Newlib functions (in common
+     * with C++ and STDC++) use this. 
+     */
+    .ARM.extab : ALIGN(4) 
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+    } > MFlashA512
+
+    __exidx_start = .;
+
+    .ARM.exidx : ALIGN(4)
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+    } > MFlashA512
+    __exidx_end = .;
+
+    _etext = .;
+        
+    /* DATA section for RamLoc40 */
+
+    .data_RAM2 : ALIGN(4)
+    {
+        FILL(0xff)
+        PROVIDE(__start_data_RAM2 = .) ;
+        *(.ramfunc.$RAM2)
+        *(.ramfunc.$RamLoc40)
+        *(.data.$RAM2*)
+        *(.data.$RamLoc40*)
+        . = ALIGN(4) ;
+        PROVIDE(__end_data_RAM2 = .) ;
+     } > RamLoc40 AT>MFlashA512
+    /* DATA section for RamAHB32 */
+
+    .data_RAM3 : ALIGN(4)
+    {
+        FILL(0xff)
+        PROVIDE(__start_data_RAM3 = .) ;
+        *(.ramfunc.$RAM3)
+        *(.ramfunc.$RamAHB32)
+        *(.data.$RAM3*)
+        *(.data.$RamAHB32*)
+        . = ALIGN(4) ;
+        PROVIDE(__end_data_RAM3 = .) ;
+     } > RamAHB32 AT>MFlashA512
+    /* DATA section for RamAHB16 */
+
+    .data_RAM4 : ALIGN(4)
+    {
+        FILL(0xff)
+        PROVIDE(__start_data_RAM4 = .) ;
+        *(.ramfunc.$RAM4)
+        *(.ramfunc.$RamAHB16)
+        *(.data.$RAM4*)
+        *(.data.$RamAHB16*)
+        . = ALIGN(4) ;
+        PROVIDE(__end_data_RAM4 = .) ;
+     } > RamAHB16 AT>MFlashA512
+    /* DATA section for RamAHB_ETB16 */
+
+    .data_RAM5 : ALIGN(4)
+    {
+        FILL(0xff)
+        PROVIDE(__start_data_RAM5 = .) ;
+        *(.ramfunc.$RAM5)
+        *(.ramfunc.$RamAHB_ETB16)
+        *(.data.$RAM5*)
+        *(.data.$RamAHB_ETB16*)
+        . = ALIGN(4) ;
+        PROVIDE(__end_data_RAM5 = .) ;
+     } > RamAHB_ETB16 AT>MFlashA512
+    /* MAIN DATA SECTION */
+    .uninit_RESERVED : ALIGN(4)
+    {
+        KEEP(*(.bss.$RESERVED*))
+        . = ALIGN(4) ;
+        _end_uninit_RESERVED = .;
+    } > RamLoc32
+
+    /* Main DATA section (RamLoc32) */
+    .data : ALIGN(4)
+    {
+       FILL(0xff)
+       _data = . ;
+       *(vtable)
+       *(.ramfunc*)
+       *(.data*)
+       . = ALIGN(4) ;
+       _edata = . ;
+    } > RamLoc32 AT>MFlashA512
+
+    /* BSS section for RamLoc40 */
+    .bss_RAM2 : ALIGN(4)
+    {
+       PROVIDE(__start_bss_RAM2 = .) ;
+       *(.bss.$RAM2*)
+       *(.bss.$RamLoc40*)
+       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
+       PROVIDE(__end_bss_RAM2 = .) ;
+    } > RamLoc40 
+
+    /* BSS section for RamAHB32 */
+    .bss_RAM3 : ALIGN(4)
+    {
+       PROVIDE(__start_bss_RAM3 = .) ;
+       *(.bss.$RAM3*)
+       *(.bss.$RamAHB32*)
+       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
+       PROVIDE(__end_bss_RAM3 = .) ;
+    } > RamAHB32 
+
+    /* BSS section for RamAHB16 */
+    .bss_RAM4 : ALIGN(4)
+    {
+       PROVIDE(__start_bss_RAM4 = .) ;
+       *(.bss.$RAM4*)
+       *(.bss.$RamAHB16*)
+       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
+       PROVIDE(__end_bss_RAM4 = .) ;
+    } > RamAHB16 
+
+    /* BSS section for RamAHB_ETB16 */
+    .bss_RAM5 : ALIGN(4)
+    {
+       PROVIDE(__start_bss_RAM5 = .) ;
+       *(.bss.$RAM5*)
+       *(.bss.$RamAHB_ETB16*)
+       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
+       PROVIDE(__end_bss_RAM5 = .) ;
+    } > RamAHB_ETB16 
+
+    /* MAIN BSS SECTION */
+    .bss : ALIGN(4)
+    {
+        _bss = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(4) ;
+        _ebss = .;
+        PROVIDE(end = .);
+    } > RamLoc32
+
+    /* NOINIT section for RamLoc40 */
+    .noinit_RAM2 (NOLOAD) : ALIGN(4)
+    {
+       *(.noinit.$RAM2*)
+       *(.noinit.$RamLoc40*)
+       . = ALIGN(4) ;
+    } > RamLoc40 
+
+    /* NOINIT section for RamAHB32 */
+    .noinit_RAM3 (NOLOAD) : ALIGN(4)
+    {
+       *(.noinit.$RAM3*)
+       *(.noinit.$RamAHB32*)
+       . = ALIGN(4) ;
+    } > RamAHB32 
+
+    /* NOINIT section for RamAHB16 */
+    .noinit_RAM4 (NOLOAD) : ALIGN(4)
+    {
+       *(.noinit.$RAM4*)
+       *(.noinit.$RamAHB16*)
+       . = ALIGN(4) ;
+    } > RamAHB16 
+
+    /* NOINIT section for RamAHB_ETB16 */
+    .noinit_RAM5 (NOLOAD) : ALIGN(4)
+    {
+       *(.noinit.$RAM5*)
+       *(.noinit.$RamAHB_ETB16*)
+       . = ALIGN(4) ;
+    } > RamAHB_ETB16 
+
+    /* 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;
+}