355 lines
12 KiB
C
355 lines
12 KiB
C
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//*****************************************************************************
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// +--+
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// | ++----+
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// +-++ |
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// | |
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// +-+--+ |
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// | +--+--+
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// +----+ Copyright (c) 2012 Code Red Technologies Ltd.
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//
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// NXP LPC13U Microcontroller Startup code for use with Red Suite
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//
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// Version : 120202
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//
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// Software License Agreement
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//
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// The software is owned by Code Red Technologies and/or its suppliers, and is
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// protected under applicable copyright laws. All rights are reserved. Any
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// use in violation of the foregoing restrictions may subject the user to criminal
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// sanctions under applicable laws, as well as to civil liability for the breach
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// of the terms and conditions of this license.
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//
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// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
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// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
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// USE OF THIS SOFTWARE FOR COMMERCIAL DEVELOPMENT AND/OR EDUCATION IS SUBJECT
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// TO A CURRENT END USER LICENSE AGREEMENT (COMMERCIAL OR EDUCATIONAL) WITH
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// CODE RED TECHNOLOGIES LTD.
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//
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//*****************************************************************************
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#if defined (__cplusplus)
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#ifdef __REDLIB__
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#error Redlib does not support C++
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#else
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//*****************************************************************************
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//
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// The entry point for the C++ library startup
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//
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//*****************************************************************************
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extern "C" {
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extern void __libc_init_array(void);
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}
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#endif
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#endif
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#define WEAK __attribute__ ((weak))
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#define ALIAS(f) __attribute__ ((weak, alias (#f)))
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// Code Red - if CMSIS is being used, then SystemInit() routine
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// will be called by startup code rather than in application's main()
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#if defined (__USE_CMSIS)
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#include "LPC13Uxx.h"
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#endif
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//*****************************************************************************
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#if defined (__cplusplus)
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extern "C" {
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#endif
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//*****************************************************************************
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//
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// Forward declaration of the default handlers. These are aliased.
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// When the application defines a handler (with the same name), this will
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// automatically take precedence over these weak definitions
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//
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//*****************************************************************************
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void ResetISR(void);
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WEAK void NMI_Handler(void);
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WEAK void HardFault_Handler(void);
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WEAK void MemManage_Handler(void);
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WEAK void BusFault_Handler(void);
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WEAK void UsageFault_Handler(void);
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WEAK void SVC_Handler(void);
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WEAK void DebugMon_Handler(void);
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WEAK void PendSV_Handler(void);
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WEAK void SysTick_Handler(void);
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WEAK void IntDefaultHandler(void);
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//*****************************************************************************
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//
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// Forward declaration of the specific IRQ handlers. These are aliased
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// to the IntDefaultHandler, which is a 'forever' loop. When the application
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// defines a handler (with the same name), this will automatically take
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// precedence over these weak definitions
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//
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//*****************************************************************************
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void PIN_INT0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT2_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT3_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT4_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT5_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT6_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT7_IRQHandler(void) ALIAS(IntDefaultHandler);
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void GINT0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void GINT1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void OSTIMER_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SSP1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void I2C_IRQHandler(void) ALIAS(IntDefaultHandler);
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void CT16B0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void CT16B1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void CT32B0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void CT32B1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SSP0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void USART_IRQHandler(void) ALIAS(IntDefaultHandler);
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void USB_IRQHandler(void) ALIAS(IntDefaultHandler);
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void USB_FIQHandler(void) ALIAS(IntDefaultHandler);
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void ADC_IRQHandler(void) ALIAS(IntDefaultHandler);
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void WDT_IRQHandler(void) ALIAS(IntDefaultHandler);
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void BOD_IRQHandler(void) ALIAS(IntDefaultHandler);
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void FMC_IRQHandler(void) ALIAS(IntDefaultHandler);
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void OSCFAIL_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PVTCIRCUIT_IRQHandler(void) ALIAS(IntDefaultHandler);
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void USBWakeup_IRQHandler(void) ALIAS(IntDefaultHandler);
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//*****************************************************************************
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//
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// The entry point for the application.
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// __main() is the entry point for Redlib based applications
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// main() is the entry point for Newlib based applications
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//
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//*****************************************************************************
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#if defined (__REDLIB__)
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extern void __main(void);
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#endif
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extern int main(void);
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//*****************************************************************************
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//
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// External declaration for the pointer to the stack top from the Linker Script
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//
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//*****************************************************************************
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extern void _vStackTop(void);
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//*****************************************************************************
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#if defined (__cplusplus)
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} // extern "C"
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#endif
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//*****************************************************************************
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//
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// The vector table. Note that the proper constructs must be placed on this to
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// ensure that it ends up at physical address 0x0000.0000.
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//
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//*****************************************************************************
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extern void (* const g_pfnVectors[])(void);
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__attribute__ ((section(".isr_vector")))
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void (* const g_pfnVectors[])(void) = {
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// Core Level - CM3
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&_vStackTop, // The initial stack pointer
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ResetISR, // The reset handler
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NMI_Handler, // The NMI handler
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HardFault_Handler, // The hard fault handler
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MemManage_Handler, // The MPU fault handler
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BusFault_Handler, // The bus fault handler
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UsageFault_Handler, // The usage fault handler
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0, // Reserved
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0, // Reserved
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0, // Reserved
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0, // Reserved
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SVC_Handler, // SVCall handler
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DebugMon_Handler, // Debug monitor handler
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0, // Reserved
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PendSV_Handler, // The PendSV handler
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SysTick_Handler, // The SysTick handler
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// LPC13U External Interrupts
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PIN_INT0_IRQHandler, // All GPIO pin can be routed to PIN_INTx
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PIN_INT1_IRQHandler,
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PIN_INT2_IRQHandler,
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PIN_INT3_IRQHandler,
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PIN_INT4_IRQHandler,
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PIN_INT5_IRQHandler,
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PIN_INT6_IRQHandler,
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PIN_INT7_IRQHandler,
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GINT0_IRQHandler,
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GINT1_IRQHandler, // PIO0 (0:7)
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0,
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0,
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OSTIMER_IRQHandler,
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0,
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SSP1_IRQHandler, // SSP1
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I2C_IRQHandler, // I2C
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CT16B0_IRQHandler, // 16-bit Timer0
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CT16B1_IRQHandler, // 16-bit Timer1
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CT32B0_IRQHandler, // 32-bit Timer0
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CT32B1_IRQHandler, // 32-bit Timer1
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SSP0_IRQHandler, // SSP0
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USART_IRQHandler, // USART
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USB_IRQHandler, // USB IRQ
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USB_FIQHandler, // USB FIQ
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ADC_IRQHandler, // A/D Converter
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WDT_IRQHandler, // Watchdog timer
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BOD_IRQHandler, // Brown Out Detect
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FMC_IRQHandler, // IP2111 Flash Memory Controller
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OSCFAIL_IRQHandler, // OSC FAIL
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PVTCIRCUIT_IRQHandler, // PVT CIRCUIT
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USBWakeup_IRQHandler, // USB wake up
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0,
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};
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//*****************************************************************************
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// Functions to carry out the initialization of RW and BSS data sections. These
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// are written as separate functions rather than being inlined within the
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// ResetISR() function in order to cope with MCUs with multiple banks of
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// memory.
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//*****************************************************************************
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__attribute__ ((section(".after_vectors")))
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void data_init(unsigned int romstart, unsigned int start, unsigned int len) {
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unsigned int *pulDest = (unsigned int*) start;
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unsigned int *pulSrc = (unsigned int*) romstart;
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unsigned int loop;
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for (loop = 0; loop < len; loop = loop + 4)
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*pulDest++ = *pulSrc++;
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}
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__attribute__ ((section(".after_vectors")))
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void bss_init(unsigned int start, unsigned int len) {
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unsigned int *pulDest = (unsigned int*) start;
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unsigned int loop;
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for (loop = 0; loop < len; loop = loop + 4)
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*pulDest++ = 0;
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}
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//*****************************************************************************
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// The following symbols are constructs generated by the linker, indicating
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// the location of various points in the "Global Section Table". This table is
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// created by the linker via the Code Red managed linker script mechanism. It
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// contains the load address, execution address and length of each RW data
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// section and the execution and length of each BSS (zero initialized) section.
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//*****************************************************************************
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extern unsigned int __data_section_table;
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extern unsigned int __data_section_table_end;
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extern unsigned int __bss_section_table;
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extern unsigned int __bss_section_table_end;
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//*****************************************************************************
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// Reset entry point for your code.
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// Sets up a simple runtime environment and initializes the C/C++
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// library.
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//*****************************************************************************
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__attribute__ ((section(".after_vectors")))
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void
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ResetISR(void) {
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//
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// Copy the data sections from flash to SRAM.
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//
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unsigned int LoadAddr, ExeAddr, SectionLen;
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unsigned int *SectionTableAddr;
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// Load base address of Global Section Table
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SectionTableAddr = &__data_section_table;
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// Copy the data sections from flash to SRAM.
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while (SectionTableAddr < &__data_section_table_end) {
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LoadAddr = *SectionTableAddr++;
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ExeAddr = *SectionTableAddr++;
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SectionLen = *SectionTableAddr++;
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data_init(LoadAddr, ExeAddr, SectionLen);
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}
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// At this point, SectionTableAddr = &__bss_section_table;
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// Zero fill the bss segment
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while (SectionTableAddr < &__bss_section_table_end) {
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ExeAddr = *SectionTableAddr++;
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SectionLen = *SectionTableAddr++;
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bss_init(ExeAddr, SectionLen);
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}
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#ifdef __USE_CMSIS
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SystemInit();
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#endif
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#if defined (__cplusplus)
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//
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// Call C++ library initialisation
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//
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__libc_init_array();
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#endif
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#if defined (__REDLIB__)
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// Call the Redlib library, which in turn calls main()
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__main() ;
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#else
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main();
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#endif
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//
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// main() shouldn't return, but if it does, we'll just enter an infinite loop
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//
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while (1) {
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;
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}
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}
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//*****************************************************************************
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// Default exception handlers. Override the ones here by defining your own
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// handler routines in your application code.
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//*****************************************************************************
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__attribute__ ((section(".after_vectors")))
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void NMI_Handler(void) {
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while (1) {
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}
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}
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__attribute__ ((section(".after_vectors")))
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void HardFault_Handler(void) {
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while (1) {
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}
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}
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__attribute__ ((section(".after_vectors")))
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void MemManage_Handler(void) {
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while (1) {
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}
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}
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__attribute__ ((section(".after_vectors")))
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void BusFault_Handler(void) {
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while (1) {
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}
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}
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__attribute__ ((section(".after_vectors")))
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void UsageFault_Handler(void) {
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while (1) {
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}
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}
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__attribute__ ((section(".after_vectors")))
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void SVC_Handler(void) {
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while (1) {
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}
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}
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__attribute__ ((section(".after_vectors")))
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void DebugMon_Handler(void) {
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while (1) {
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}
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}
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__attribute__ ((section(".after_vectors")))
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void PendSV_Handler(void) {
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while (1) {
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}
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}
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__attribute__ ((section(".after_vectors")))
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void SysTick_Handler(void) {
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while (1) {
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}
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}
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//*****************************************************************************
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//
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// Processor ends up here if an unexpected interrupt occurs or a handler
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// is not present in the application code.
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//
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//*****************************************************************************
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__attribute__ ((section(".after_vectors")))
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void IntDefaultHandler(void) {
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//
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// Go into an infinite loop.
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//
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while (1) {
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}
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}
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