//***************************************************************************** // //! @file startup_iar.c //! //! @brief Definitions for interrupt handlers, the vector table, and the stack. // //***************************************************************************** //***************************************************************************** // // Copyright (c) 2017, Ambiq Micro // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // 1. Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // // 2. Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in the // documentation and/or other materials provided with the distribution. // // 3. Neither the name of the copyright holder nor the names of its // contributors may be used to endorse or promote products derived from this // software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 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. // // This is part of revision 1.2.9 of the AmbiqSuite Development Package. // //***************************************************************************** #include <stdint.h> //***************************************************************************** // // Enable the IAR extensions for this source file. // //***************************************************************************** #pragma language = extended //***************************************************************************** // // Weak function links. // //***************************************************************************** #pragma weak am_mpufault_isr = am_fault_isr #pragma weak am_busfault_isr = am_fault_isr #pragma weak am_usagefault_isr = am_fault_isr #pragma weak am_svcall_isr = am_default_isr #pragma weak am_debugmon_isr = am_default_isr #pragma weak am_pendsv_isr = am_default_isr #pragma weak am_systick_isr = am_default_isr #pragma weak am_brownout_isr = am_default_isr #pragma weak am_watchdog_isr = am_default_isr #pragma weak am_clkgen_isr = am_default_isr #pragma weak am_vcomp_isr = am_default_isr #pragma weak am_ioslave_ios_isr = am_default_isr #pragma weak am_ioslave_acc_isr = am_default_isr #pragma weak am_iomaster0_isr = am_default_isr #pragma weak am_iomaster1_isr = am_default_isr #pragma weak am_iomaster2_isr = am_default_isr #pragma weak am_iomaster3_isr = am_default_isr #pragma weak am_iomaster4_isr = am_default_isr #pragma weak am_iomaster5_isr = am_default_isr #pragma weak am_gpio_isr = am_default_isr #pragma weak am_ctimer_isr = am_default_isr #pragma weak am_uart_isr = am_default_isr #pragma weak am_uart1_isr = am_default_isr #pragma weak am_adc_isr = am_default_isr #pragma weak am_pdm_isr = am_default_isr #pragma weak am_stimer_isr = am_default_isr #pragma weak am_stimer_cmpr0_isr = am_default_isr #pragma weak am_stimer_cmpr1_isr = am_default_isr #pragma weak am_stimer_cmpr2_isr = am_default_isr #pragma weak am_stimer_cmpr3_isr = am_default_isr #pragma weak am_stimer_cmpr4_isr = am_default_isr #pragma weak am_stimer_cmpr5_isr = am_default_isr #pragma weak am_stimer_cmpr6_isr = am_default_isr #pragma weak am_stimer_cmpr7_isr = am_default_isr #pragma weak am_flash_isr = am_default_isr #pragma weak am_software0_isr = am_default_isr #pragma weak am_software1_isr = am_default_isr #pragma weak am_software2_isr = am_default_isr #pragma weak am_software3_isr = am_default_isr //***************************************************************************** // // Forward declaration of the default fault handlers. // //***************************************************************************** extern __stackless void am_reset_isr(void); extern __weak void am_nmi_isr(void); extern __weak void am_fault_isr(void); extern void am_mpufault_isr(void); extern void am_busfault_isr(void); extern void am_usagefault_isr(void); extern void am_svcall_isr(void); extern void am_debugmon_isr(void); extern void am_pendsv_isr(void); extern void am_systick_isr(void); extern void am_brownout_isr(void); extern void am_watchdog_isr(void); extern void am_clkgen_isr(void); extern void am_vcomp_isr(void); extern void am_ioslave_ios_isr(void); extern void am_ioslave_acc_isr(void); extern void am_iomaster0_isr(void); extern void am_iomaster1_isr(void); extern void am_iomaster2_isr(void); extern void am_iomaster3_isr(void); extern void am_iomaster4_isr(void); extern void am_iomaster5_isr(void); extern void am_gpio_isr(void); extern void am_ctimer_isr(void); extern void am_uart_isr(void); extern void am_uart1_isr(void); extern void am_adc_isr(void); extern void am_pdm_isr(void); extern void am_stimer_isr(void); extern void am_stimer_cmpr0_isr(void); extern void am_stimer_cmpr1_isr(void); extern void am_stimer_cmpr2_isr(void); extern void am_stimer_cmpr3_isr(void); extern void am_stimer_cmpr4_isr(void); extern void am_stimer_cmpr5_isr(void); extern void am_stimer_cmpr6_isr(void); extern void am_stimer_cmpr7_isr(void); extern void am_flash_isr(void); extern void am_software0_isr(void); extern void am_software1_isr(void); extern void am_software2_isr(void); extern void am_software3_isr(void); extern void am_default_isr(void); //***************************************************************************** // // The entry point for the application startup code. // //***************************************************************************** extern void __iar_program_start(void); //***************************************************************************** // // Reserve space for the system stack. // //***************************************************************************** static uint32_t pui32Stack[1024] @ ".noinit"; //***************************************************************************** // // A union that describes the entries of the vector table. The union is needed // since the first entry is the stack pointer and the remainder are function // pointers. // //***************************************************************************** typedef union { void (*pfnHandler)(void); uint32_t ui32Ptr; } uVectorEntry; //***************************************************************************** // // The vector table. Note that the proper constructs must be placed on this to // ensure that it ends up at physical address 0x0000.0000. // // Note: Aliasing and weakly exporting am_mpufault_isr, am_busfault_isr, and // am_usagefault_isr does not work if am_fault_isr is defined externally. // Therefore, we'll explicitly use am_fault_isr in the table for those vectors. // //***************************************************************************** __root const uVectorEntry __vector_table[] @ ".intvec" = { { .ui32Ptr = (uint32_t)pui32Stack + sizeof(pui32Stack) }, // The initial stack pointer am_reset_isr, // The reset handler am_nmi_isr, // The NMI handler am_fault_isr, // The hard fault handler am_fault_isr, // The MPU fault handler am_fault_isr, // The bus fault handler am_fault_isr, // The usage fault handler 0, // Reserved 0, // Reserved 0, // Reserved 0, // Reserved am_svcall_isr, // SVCall handle am_debugmon_isr, // Debug monitor handler 0, // Reserved am_pendsv_isr, // The PendSV handler am_systick_isr, // The SysTick handler // // Peripheral Interrupts // am_brownout_isr, // 0: Brownout am_watchdog_isr, // 1: Watchdog am_clkgen_isr, // 2: CLKGEN am_vcomp_isr, // 3: Voltage Comparator am_ioslave_ios_isr, // 4: I/O Slave general am_ioslave_acc_isr, // 5: I/O Slave access am_iomaster0_isr, // 6: I/O Master 0 am_iomaster1_isr, // 7: I/O Master 1 am_iomaster2_isr, // 8: I/O Master 2 am_iomaster3_isr, // 9: I/O Master 3 am_iomaster4_isr, // 10: I/O Master 4 am_iomaster5_isr, // 11: I/O Master 5 am_gpio_isr, // 12: GPIO am_ctimer_isr, // 13: CTIMER am_uart_isr, // 14: UART0 am_uart1_isr, // 15: UART1 am_adc_isr, // 16: ADC am_pdm_isr, // 17: PDM am_stimer_isr, // 18: STIMER am_stimer_cmpr0_isr, // 19: STIMER COMPARE0 am_stimer_cmpr1_isr, // 20: STIMER COMPARE1 am_stimer_cmpr2_isr, // 21: STIMER COMPARE2 am_stimer_cmpr3_isr, // 22: STIMER COMPARE3 am_stimer_cmpr4_isr, // 23: STIMER COMPARE4 am_stimer_cmpr5_isr, // 24: STIMER COMPARE5 am_stimer_cmpr6_isr, // 25: STIMER COMPARE6 am_stimer_cmpr7_isr, // 26: STIMER COMPARE7 am_flash_isr, // 27: FLASH am_software0_isr, // 28: SOFTWARE0 am_software1_isr, // 29: SOFTWARE1 am_software2_isr, // 30: SOFTWARE2 am_software3_isr // 31: SOFTWARE3 }; //***************************************************************************** // // This is the code that gets called when the processor first starts execution // following a reset event. Only the absolutely necessary set is performed, // after which the application supplied entry() routine is called. // //***************************************************************************** void am_reset_isr(void) { // // Call the application's entry point. // __iar_program_start(); } //***************************************************************************** // // This is the code that gets called when the processor receives a NMI. This // simply enters an infinite loop, preserving the system state for examination // by a debugger. // //***************************************************************************** __weak void am_nmi_isr(void) { // // Enter an infinite loop. // while(1) { } } //***************************************************************************** // // This is the code that gets called when the processor receives a fault // interrupt. This simply enters an infinite loop, preserving the system state // for examination by a debugger. // //***************************************************************************** __weak void am_fault_isr(void) { // // Enter an infinite loop. // while(1) { } } //***************************************************************************** // // This is the code that gets called when the processor receives an unexpected // interrupt. This simply enters an infinite loop, preserving the system state // for examination by a debugger. // //***************************************************************************** static void am_default_isr(void) { // // Go into an infinite loop. // while(1) { } }