474 lines
17 KiB
C
474 lines
17 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) 2011-12 Code Red Technologies Ltd.
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//
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// Microcontroller Startup code for use with Red Suite
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//
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// Version : 120126
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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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/* Include sys_config.h to get the CHIP_11* device identifier */
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#include "sys_config.h"
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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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extern void SystemInit(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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// 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 SVC_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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#if defined(CHIP_LPC1343)
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void WAKEUP_IRQHandler (void) ALIAS(IntDefaultHandler);
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void I2C_IRQHandler (void) ALIAS(IntDefaultHandler);
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void TIMER16_0_IRQHandler (void) ALIAS(IntDefaultHandler);
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void TIMER16_1_IRQHandler (void) ALIAS(IntDefaultHandler);
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void TIMER32_0_IRQHandler (void) ALIAS(IntDefaultHandler);
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void TIMER32_1_IRQHandler (void) ALIAS(IntDefaultHandler);
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void SSP0_IRQHandler (void) ALIAS(IntDefaultHandler);
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void UART_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 PIOINT3_IRQHandler (void) ALIAS(IntDefaultHandler);
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void PIOINT2_IRQHandler (void) ALIAS(IntDefaultHandler);
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void PIOINT1_IRQHandler (void) ALIAS(IntDefaultHandler);
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void PIOINT0_IRQHandler (void) ALIAS(IntDefaultHandler);
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#elif defined(CHIP_LPC1347)
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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 RIT_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 TIMER16_0_IRQHandler (void) ALIAS(IntDefaultHandler);
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void TIMER16_1_IRQHandler (void) ALIAS(IntDefaultHandler);
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void TIMER32_0_IRQHandler (void) ALIAS(IntDefaultHandler);
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void TIMER32_1_IRQHandler (void) ALIAS(IntDefaultHandler);
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void SSP0_IRQHandler (void) ALIAS(IntDefaultHandler);
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void UART_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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#else
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#error No CHIP_134* device defined
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#endif
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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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//
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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"))) __attribute__ ((used))
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void (* const g_pfnVectors[])(void) = {
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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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0, // Reserved
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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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0, // Reserved
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0, // Reserved
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SVC_Handler, // SVCall handler
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0, // Reserved
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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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#if defined(CHIP_LPC1343)
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WAKEUP_IRQHandler, // Wakeup PIO0.0
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WAKEUP_IRQHandler, // Wakeup PIO0.1
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WAKEUP_IRQHandler, // Wakeup PIO0.2
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WAKEUP_IRQHandler, // Wakeup PIO0.3
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WAKEUP_IRQHandler, // Wakeup PIO0.4
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WAKEUP_IRQHandler, // Wakeup PIO0.5
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WAKEUP_IRQHandler, // Wakeup PIO0.6
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WAKEUP_IRQHandler, // Wakeup PIO0.7
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WAKEUP_IRQHandler, // Wakeup PIO0.8
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WAKEUP_IRQHandler, // Wakeup PIO0.9
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WAKEUP_IRQHandler, // Wakeup PIO0.10
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WAKEUP_IRQHandler, // Wakeup PIO0.11
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WAKEUP_IRQHandler, // Wakeup PIO1.0
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WAKEUP_IRQHandler, // Wakeup PIO1.1
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WAKEUP_IRQHandler, // Wakeup PIO1.2
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WAKEUP_IRQHandler, // Wakeup PIO1.3
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WAKEUP_IRQHandler, // Wakeup PIO1.4
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WAKEUP_IRQHandler, // Wakeup PIO1.5
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WAKEUP_IRQHandler, // Wakeup PIO1.6
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WAKEUP_IRQHandler, // Wakeup PIO1.7
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WAKEUP_IRQHandler, // Wakeup PIO1.8
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WAKEUP_IRQHandler, // Wakeup PIO1.9
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WAKEUP_IRQHandler, // Wakeup PIO1.10
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WAKEUP_IRQHandler, // Wakeup PIO1.11
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WAKEUP_IRQHandler, // Wakeup PIO2.0
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WAKEUP_IRQHandler, // Wakeup PIO2.1
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WAKEUP_IRQHandler, // Wakeup PIO2.2
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WAKEUP_IRQHandler, // Wakeup PIO2.3
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WAKEUP_IRQHandler, // Wakeup PIO2.4
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WAKEUP_IRQHandler, // Wakeup PIO2.5
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WAKEUP_IRQHandler, // Wakeup PIO2.6
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WAKEUP_IRQHandler, // Wakeup PIO2.7
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WAKEUP_IRQHandler, // Wakeup PIO2.8
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WAKEUP_IRQHandler, // Wakeup PIO2.9
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WAKEUP_IRQHandler, // Wakeup PIO2.10
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WAKEUP_IRQHandler, // Wakeup PIO2.11
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WAKEUP_IRQHandler, // Wakeup PIO3.0
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WAKEUP_IRQHandler, // Wakeup PIO3.1
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WAKEUP_IRQHandler, // Wakeup PIO3.2
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WAKEUP_IRQHandler, // Wakeup PIO3.3
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I2C_IRQHandler, // I2C
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TIMER16_0_IRQHandler, // 16-bit Counter-Timer 0
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TIMER16_1_IRQHandler, // 16-bit Counter-Timer 1
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TIMER32_0_IRQHandler, // 32-bit Counter-Timer 0
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TIMER32_1_IRQHandler, // 32-bit Counter-Timer 1
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SSP0_IRQHandler, // SSP0
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UART_IRQHandler, // UART
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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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PIOINT3_IRQHandler, // PIO INT3
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PIOINT2_IRQHandler, // PIO INT2
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PIOINT1_IRQHandler, // PIO INT1
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PIOINT0_IRQHandler, // PIO INT0
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#elif defined(CHIP_LPC1347)
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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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RIT_IRQHandler,
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0,
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SSP1_IRQHandler, // SSP1
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I2C_IRQHandler, // I2C
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TIMER16_0_IRQHandler, // 16-bit Counter-Timer 0
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TIMER16_1_IRQHandler, // 16-bit Counter-Timer 1
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TIMER32_0_IRQHandler, // 32-bit Counter-Timer 0
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TIMER32_1_IRQHandler, // 32-bit Counter-Timer 1
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SSP0_IRQHandler, // SSP0
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UART_IRQHandler, // UART
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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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#else
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#error No CHIP_13* device defined
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#endif
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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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#ifndef USE_OLD_STYLE_DATA_BSS_INIT
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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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#else
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//*****************************************************************************
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// The following symbols are constructs generated by the linker, indicating
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// the load address, execution address and length of the RW data section and
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// the execution and length of the BSS (zero initialized) section.
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// Note that these symbols are not normally used by the managed linker script
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// mechanism in Red Suite/LPCXpresso 3.6 (Windows) and LPCXpresso 3.8 (Linux).
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// They are provide here simply so this startup code can be used with earlier
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// versions of Red Suite which do not support the more advanced managed linker
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|
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// script mechanism introduced in the above version. To enable their use,
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// define "USE_OLD_STYLE_DATA_BSS_INIT".
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//*****************************************************************************
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extern unsigned int _etext;
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extern unsigned int _data;
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extern unsigned int _edata;
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extern unsigned int _bss;
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extern unsigned int _ebss;
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#endif
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|
|
||
|
|
|
||
|
|
//*****************************************************************************
|
||
|
|
// 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) {
|
||
|
|
|
||
|
|
#ifndef USE_OLD_STYLE_DATA_BSS_INIT
|
||
|
|
//
|
||
|
|
// 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);
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
// Use Old Style Data and BSS section initialization.
|
||
|
|
// This will only initialize a single RAM bank.
|
||
|
|
unsigned int * LoadAddr, *ExeAddr, *EndAddr, SectionLen;
|
||
|
|
|
||
|
|
// Copy the data segment from flash to SRAM.
|
||
|
|
LoadAddr = &_etext;
|
||
|
|
ExeAddr = &_data;
|
||
|
|
EndAddr = &_edata;
|
||
|
|
SectionLen = (void*)EndAddr - (void*)ExeAddr;
|
||
|
|
data_init((unsigned int)LoadAddr, (unsigned int)ExeAddr, SectionLen);
|
||
|
|
// Zero fill the bss segment
|
||
|
|
ExeAddr = &_bss;
|
||
|
|
EndAddr = &_ebss;
|
||
|
|
SectionLen = (void*)EndAddr - (void*)ExeAddr;
|
||
|
|
bss_init ((unsigned int)ExeAddr, SectionLen);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// extern void SystemInit(void);
|
||
|
|
SystemInit();
|
||
|
|
|
||
|
|
#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 SVC_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)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|