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/*****************************************************************************/
/* startup_LPC17xx.s: Startup file for LPC17xx device series */
/*****************************************************************************/
/* Version: CodeSourcery Sourcery G++ Lite (with CS3) */
/*****************************************************************************/
/* mthomas:
- replaced CM3 _start with data-copy, bss-init
- added syntax unified
- moved NMI to UsageFault handlers in reset section to minimize checksum
modifications
*/
/*
*** <<< Use Configuration Wizard in Context Menu >>> ***
*/
/*
// <h> Stack Configuration
// <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
// </h>
*/
.syntax unified
.equ Stack_Size, 0x00000300
.section ".stack", "w"
.align 3
.globl __cs3_stack_mem
.globl __cs3_stack_size
__cs3_stack_mem:
.if Stack_Size
.space Stack_Size
.endif
.size __cs3_stack_mem, . - __cs3_stack_mem
.set __cs3_stack_size, . - __cs3_stack_mem
/*
// <h> Heap Configuration
// <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
// </h>
*/
.equ Heap_Size, 0x00001000
.section ".heap", "w"
.align 3
.globl __cs3_heap_start
.globl __cs3_heap_end
__cs3_heap_start:
.if Heap_Size
.space Heap_Size
.endif
__cs3_heap_end:
/* Vector Table */
.section ".cs3.interrupt_vector"
.globl __cs3_interrupt_vector_cortex_m
.type __cs3_interrupt_vector_cortex_m, %object
__cs3_interrupt_vector_cortex_m:
.long __cs3_stack /* Top of Stack */
.long __cs3_reset /* Reset Handler */
.long NMI_Handler /* NMI Handler */
.long HardFault_Handler /* Hard Fault Handler */
.long MemManage_Handler /* MPU Fault Handler */
.long BusFault_Handler /* Bus Fault Handler */
.long UsageFault_Handler /* Usage Fault Handler */
.long 0 //0xefff79be /* Checksum, see LPC1xxx manual */
.long 0 /* Reserved */
.long 0 /* Reserved */
.long 0 /* Reserved */
.long SVC_Handler /* SVCall Handler */
.long DebugMon_Handler /* Debug Monitor Handler */
.long 0 /* Reserved */
.long PendSV_Handler /* PendSV Handler */
.long SysTick_Handler /* SysTick Handler */
/* External Interrupts */
.long WDT_IRQHandler /* 16: Watchdog Timer */
.long TIMER0_IRQHandler /* 17: Timer0 */
.long TIMER1_IRQHandler /* 18: Timer1 */
.long TIMER2_IRQHandler /* 19: Timer2 */
.long TIMER3_IRQHandler /* 20: Timer3 */
.long UART0_IRQHandler /* 21: UART0 */
.long UART1_IRQHandler /* 22: UART1 */
.long UART2_IRQHandler /* 23: UART2 */
.long UART3_IRQHandler /* 24: UART3 */
.long PWM1_IRQHandler /* 25: PWM1 */
.long I2C0_IRQHandler /* 26: I2C0 */
.long I2C1_IRQHandler /* 27: I2C1 */
.long I2C2_IRQHandler /* 28: I2C2 */
.long SPI_IRQHandler /* 29: SPI */
.long SSP0_IRQHandler /* 30: SSP0 */
.long SSP1_IRQHandler /* 31: SSP1 */
.long PLL0_IRQHandler /* 32: PLL0 Lock (Main PLL) */
.long RTC_IRQHandler /* 33: Real Time Clock */
.long EINT0_IRQHandler /* 34: External Interrupt 0 */
.long EINT1_IRQHandler /* 35: External Interrupt 1 */
.long EINT2_IRQHandler /* 36: External Interrupt 2 */
.long EINT3_IRQHandler /* 37: External Interrupt 3 */
.long ADC_IRQHandler /* 38: A/D Converter */
.long BOD_IRQHandler /* 39: Brown-Out Detect */
.long USB_IRQHandler /* 40: USB */
.long CAN_IRQHandler /* 41: CAN */
.long DMA_IRQHandler /* 42: General Purpose DMA */
.long I2S_IRQHandler /* 43: I2S */
.long ENET_IRQHandler /* 44: Ethernet */
.long RIT_IRQHandler /* 45: Repetitive Interrupt Timer */
.long MCPWM_IRQHandler /* 46: Motor Control PWM */
.long QEI_IRQHandler /* 47: Quadrature Encoder Interface */
.long PLL1_IRQHandler /* 48: PLL1 Lock (USB PLL) */
.long USBActivity_IRQHandler /* 49: USB Activity */
.long CANActivity_IRQHandler /* 50: CAN Activity */
.size __cs3_interrupt_vector_cortex_m, . - __cs3_interrupt_vector_cortex_m
.thumb
/* Reset Handler */
.section .cs3.reset,"x",%progbits
.thumb_func
.globl __cs3_reset_cortex_m
.type __cs3_reset_cortex_m, %function
__cs3_reset_cortex_m:
.fnstart
/* delay at startup to let JTAG-connection catch-up */
// LDR R0, =startup_delay
// BLX R0
/* Copy the data segment initializers from flash to SRAM */
.extern _etext
.extern _sdata
.extern _edata
ldr r1, =_etext
ldr r2, =_sdata
ldr r3, =_edata
1: cmp r2, r3
ittt lo
ldrlo r0, [r1], #4
strlo r0, [r2], #4
blo 1b
/* Zero fill the bss segment. */
.extern _sbss
.extern _ebss
movs r0, #0
ldr r1, =_sbss
ldr r2, =_ebss
2: cmp r1, r2
itt lo
strlo r0, [r1], #4
blo 2b
/* call __libc_init_array - needed for C++ support */
LDR R0, =__libc_init_array
BLX R0
/* call system init in NXP's Device CMSIS code */
LDR R0, =SystemInit
BLX R0
/* initialise NVIC */
LDR R0, =init_nvic
BLX R0
/* call main() */
LDR R0,=main
BX R0
B .
.pool
.cantunwind
.fnend
.size __cs3_reset_cortex_m,.-__cs3_reset_cortex_m
/* Exception Handlers */
.weak NMI_Handler
.type NMI_Handler, %function
NMI_Handler:
B .
.size NMI_Handler, . - NMI_Handler
.weak HardFault_Handler
.type HardFault_Handler, %function
HardFault_Handler:
B .
.size HardFault_Handler, . - HardFault_Handler
.weak MemManage_Handler
.type MemManage_Handler, %function
MemManage_Handler:
B .
.size MemManage_Handler, . - MemManage_Handler
.weak BusFault_Handler
.type BusFault_Handler, %function
BusFault_Handler:
B .
.size BusFault_Handler, . - BusFault_Handler
.weak UsageFault_Handler
.type UsageFault_Handler, %function
UsageFault_Handler:
B .
.size UsageFault_Handler, . - UsageFault_Handler
.section ".text"
.weak SVC_Handler
.type SVC_Handler, %function
SVC_Handler:
B .
.size SVC_Handler, . - SVC_Handler
.weak DebugMon_Handler
.type DebugMon_Handler, %function
DebugMon_Handler:
B .
.size DebugMon_Handler, . - DebugMon_Handler
.weak PendSV_Handler
.type PendSV_Handler, %function
PendSV_Handler:
B .
.size PendSV_Handler, . - PendSV_Handler
.weak SysTick_Handler
.type SysTick_Handler, %function
SysTick_Handler:
B .
.size SysTick_Handler, . - SysTick_Handler
/* IRQ Handlers */
.globl Default_Handler
.type Default_Handler, %function
Default_Handler:
B .
.size Default_Handler, . - Default_Handler
.macro IRQ handler
.weak \handler
.set \handler, Default_Handler
.endm
IRQ WDT_IRQHandler
IRQ TIMER0_IRQHandler
IRQ TIMER1_IRQHandler
IRQ TIMER2_IRQHandler
IRQ TIMER3_IRQHandler
IRQ UART0_IRQHandler
IRQ UART1_IRQHandler
IRQ UART2_IRQHandler
IRQ UART3_IRQHandler
IRQ PWM1_IRQHandler
IRQ I2C0_IRQHandler
IRQ I2C1_IRQHandler
IRQ I2C2_IRQHandler
IRQ SPI_IRQHandler
IRQ SSP0_IRQHandler
IRQ SSP1_IRQHandler
IRQ PLL0_IRQHandler
IRQ RTC_IRQHandler
IRQ EINT0_IRQHandler
IRQ EINT1_IRQHandler
IRQ EINT2_IRQHandler
IRQ EINT3_IRQHandler
IRQ ADC_IRQHandler
IRQ BOD_IRQHandler
IRQ USB_IRQHandler
IRQ CAN_IRQHandler
IRQ DMA_IRQHandler
IRQ I2S_IRQHandler
IRQ ENET_IRQHandler
IRQ RIT_IRQHandler
IRQ MCPWM_IRQHandler
IRQ QEI_IRQHandler
IRQ PLL1_IRQHandler
IRQ USBActivity_IRQHandler
IRQ CANActivity_IRQHandler
.end
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