| /* ---------------------------------------------------------------------------- |
| * ATMEL Microcontroller Software Support |
| * ---------------------------------------------------------------------------- |
| * Copyright (c) 2010, Atmel Corporation |
| * Copyright (c) 2017, Harald Welte <laforge@gnumonks.org> |
| * Copyright (c) 2018, sysmocom -s.f.m.c. GmbH, Author: Kevin Redon <kredon@sysmocom.de> |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the disclaimer below. |
| * |
| * Atmel's name may not be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE |
| * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, |
| * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * Headers |
| *----------------------------------------------------------------------------*/ |
| |
| #include "board.h" |
| #include "board_lowlevel.h" |
| |
| /*---------------------------------------------------------------------------- |
| * Exported variables |
| *----------------------------------------------------------------------------*/ |
| |
| /* Stack Configuration */ |
| #define STACK_SIZE 0x900 /** Stack size (in DWords) */ |
| __attribute__ ((aligned(8),section(".stack"))) |
| uint32_t pdwStack[STACK_SIZE] ; |
| |
| /* Initialize segments */ |
| extern uint32_t _sfixed; |
| extern uint32_t _efixed; |
| extern uint32_t _etext; |
| extern uint32_t _srelocate; |
| extern uint32_t _erelocate; |
| extern uint32_t _szero; |
| extern uint32_t _ezero; |
| |
| |
| /*---------------------------------------------------------------------------- |
| * ProtoTypes |
| *----------------------------------------------------------------------------*/ |
| |
| /** \cond DOXYGEN_SHOULD_SKIP_THIS */ |
| extern int main( void ) ; |
| /** \endcond */ |
| void ResetException( void ) ; |
| |
| /*------------------------------------------------------------------------------ |
| * Exception Table |
| *------------------------------------------------------------------------------*/ |
| |
| __attribute__((section(".vectors"))) |
| IntFunc exception_table[] = { |
| |
| /* Configure Initial Stack Pointer, using linker-generated symbols */ |
| (IntFunc)(&pdwStack[STACK_SIZE-1]), |
| ResetException, |
| |
| NMI_Handler, |
| HardFault_Handler, |
| MemManage_Handler, |
| BusFault_Handler, |
| UsageFault_Handler, |
| 0, 0, 0, 0, /* Reserved */ |
| SVC_Handler, |
| DebugMon_Handler, |
| 0, /* Reserved */ |
| PendSV_Handler, |
| SysTick_Handler, |
| |
| /* Configurable interrupts */ |
| SUPC_IrqHandler, /* 0 Supply Controller */ |
| RSTC_IrqHandler, /* 1 Reset Controller */ |
| RTC_IrqHandler, /* 2 Real Time Clock */ |
| RTT_IrqHandler, /* 3 Real Time Timer */ |
| WDT_IrqHandler, /* 4 Watchdog Timer */ |
| PMC_IrqHandler, /* 5 PMC */ |
| EEFC_IrqHandler, /* 6 EEFC */ |
| IrqHandlerNotUsed, /* 7 Reserved */ |
| UART0_IrqHandler, /* 8 UART0 */ |
| UART1_IrqHandler, /* 9 UART1 */ |
| SMC_IrqHandler, /* 10 SMC */ |
| PIOA_IrqHandler, /* 11 Parallel IO Controller A */ |
| PIOB_IrqHandler, /* 12 Parallel IO Controller B */ |
| PIOC_IrqHandler, /* 13 Parallel IO Controller C */ |
| USART0_IrqHandler, /* 14 USART 0 */ |
| USART1_IrqHandler, /* 15 USART 1 */ |
| IrqHandlerNotUsed, /* 16 Reserved */ |
| IrqHandlerNotUsed, /* 17 Reserved */ |
| MCI_IrqHandler, /* 18 MCI */ |
| TWI0_IrqHandler, /* 19 TWI 0 */ |
| TWI1_IrqHandler, /* 20 TWI 1 */ |
| SPI_IrqHandler, /* 21 SPI */ |
| SSC_IrqHandler, /* 22 SSC */ |
| TC0_IrqHandler, /* 23 Timer Counter 0 */ |
| TC1_IrqHandler, /* 24 Timer Counter 1 */ |
| TC2_IrqHandler, /* 25 Timer Counter 2 */ |
| TC3_IrqHandler, /* 26 Timer Counter 3 */ |
| TC4_IrqHandler, /* 27 Timer Counter 4 */ |
| TC5_IrqHandler, /* 28 Timer Counter 5 */ |
| ADC_IrqHandler, /* 29 ADC controller */ |
| DAC_IrqHandler, /* 30 DAC controller */ |
| PWM_IrqHandler, /* 31 PWM */ |
| CRCCU_IrqHandler, /* 32 CRC Calculation Unit */ |
| ACC_IrqHandler, /* 33 Analog Comparator */ |
| USBD_IrqHandler, /* 34 USB Device Port */ |
| IrqHandlerNotUsed /* 35 not used */ |
| }; |
| |
| #if defined(BOARD_USB_DFU) && defined(APPLICATION_dfu) |
| #include "usb/device/dfu/dfu.h" |
| static void BootIntoApp(void) |
| { |
| unsigned int *pSrc; |
| void (*appReset)(void); |
| |
| pSrc = (unsigned int *) ((unsigned char *)IFLASH_ADDR + BOARD_DFU_BOOT_SIZE); |
| /* set vector table to application vector table (store at the beginning of the application) */ |
| SCB->VTOR = (unsigned int)(pSrc); |
| /* set stack pointer to address provided in the beginning of the application (loaded into a register first) */ |
| __asm__ volatile ("MSR msp,%0" : :"r"(*pSrc)); |
| /* start application (by jumping to the reset function which address is stored as second entry of the vector table) */ |
| appReset = (void(*)(void))pSrc[1]; |
| |
| g_dfu->state = DFU_STATE_appIDLE; |
| |
| appReset(); |
| } |
| #endif |
| |
| /** |
| * \brief This is the code that gets called on processor reset. |
| * To initialize the device, and call the main() routine. |
| */ |
| void ResetException( void ) |
| { |
| uint32_t *pSrc, *pDest ; |
| |
| /* Low level Initialize */ |
| LowLevelInit() ; |
| |
| |
| #if defined(BOARD_USB_DFU) && defined(APPLICATION_dfu) |
| if (!USBDFU_OverrideEnterDFU()) { |
| UART_Exit(); |
| __disable_irq(); |
| BootIntoApp(); |
| /* Infinite loop */ |
| while ( 1 ) ; |
| } |
| #endif |
| |
| /* Initialize the relocate segment */ |
| pSrc = &_etext ; |
| pDest = &_srelocate ; |
| |
| if ( pSrc != pDest ) |
| { |
| for ( ; pDest < &_erelocate ; ) |
| { |
| *pDest++ = *pSrc++ ; |
| } |
| } |
| |
| /* Clear the zero segment */ |
| for ( pDest = &_szero ; pDest < &_ezero ; ) |
| { |
| *pDest++ = 0; |
| } |
| |
| /* Set the vector table base address */ |
| pSrc = (uint32_t *)&_sfixed; |
| SCB->VTOR = ( (uint32_t)pSrc & SCB_VTOR_TBLOFF_Msk ) ; |
| |
| if ( ((uint32_t)pSrc >= IRAM_ADDR) && ((uint32_t)pSrc < IRAM_ADDR+IRAM_SIZE) ) |
| { |
| SCB->VTOR |= 1 << SCB_VTOR_TBLBASE_Pos ; |
| } |
| |
| /* App should have disabled interrupts during the transition */ |
| __enable_irq(); |
| |
| /* Branch to main function */ |
| main() ; |
| |
| /* Infinite loop */ |
| while ( 1 ) ; |
| } |
| |