Add initial template for STM32L010x4
This commit is contained in:
189
startup/startup_stm32l0xx.c
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189
startup/startup_stm32l0xx.c
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/*
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* STM32F010x4 Startup Code
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* Copyright (C) 2023 Mario Huettel <mario.huettel@linux.com>
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*
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* This file is part of 'STM32L010x4 code template'.
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*
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* It is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 2 of the License.
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*
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* This code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this template. If not, see <http://www.gnu.org/licenses/>.
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* ------------------------------------------------------------------------
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*/
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/* C++ library init */
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# if defined(__cplusplus)
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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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/* Defines for weak default handlers */
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#define WEAK __attribute__((weak))
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#define ALIAS(func) __attribute__ ((weak, alias (#func)))
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/* Define for section mapping */
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#define SECTION(sec) __attribute__((section(sec)))
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/* Handler prototypes */
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#if defined(_cplusplus)
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extern "C" {
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#endif
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/* Interrupt Defualt handler */
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WEAK void __int_default_handler(void);
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/* Core Interrupts */
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void Reset_Handler(void);
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void NMI_Handler(void) ALIAS(__int_default_handler);
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void HardFault_Handler(void) ALIAS(__int_default_handler);
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void SVCall_Handler(void) ALIAS(__int_default_handler);
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void PendSV_Handler(void) ALIAS(__int_default_handler);
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void SysTick_Handler(void) ALIAS(__int_default_handler);
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/* Peripheral Interrupts (by default mapped onto Default Handler) */
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void WWDG_IRQHandler(void) ALIAS(__int_default_handler);
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void RTC_IRQHandler(void) ALIAS(__int_default_handler);
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void FLASH_IRQHandler(void) ALIAS(__int_default_handler);
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void RCC_CRS_IRQHandler(void) ALIAS(__int_default_handler);
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void EXTI0_1_IRQHandler(void) ALIAS(__int_default_handler);
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void EXTI2_3_IRQHandler(void) ALIAS(__int_default_handler);
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void EXTI4_15_IRQHandler(void) ALIAS(__int_default_handler);
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void DMA_CH1_IRQHandler(void) ALIAS(__int_default_handler);
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void DMA_CH2_3_IRQHandler(void) ALIAS(__int_default_handler);
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void DMA_CH4_5_6_7_IRQHandler(void) ALIAS(__int_default_handler);
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void ADC_IRQHandler(void) ALIAS(__int_default_handler);
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void LPTIM1_IRQHandler(void) ALIAS(__int_default_handler);
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void TIM2_IRQHandler(void) ALIAS(__int_default_handler);
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void TIM21_IRQHandler(void) ALIAS(__int_default_handler);
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void TIM22_IRQHandler(void) ALIAS(__int_default_handler);
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void I2C1_IRQHandler(void) ALIAS(__int_default_handler);
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void SPI1_IRQHandler(void) ALIAS(__int_default_handler);
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void USART2_IRQHandler(void) ALIAS(__int_default_handler);
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void LPUART1_IRQHandler(void) ALIAS(__int_default_handler);
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extern int main(void);
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extern void __system_init(void);
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extern void __ld_top_of_stack(void);
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#if defined(_cplusplus)
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extern "C" }
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#endif
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void (* const vector_table[])(void) SECTION(".vectors") = {
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&__ld_top_of_stack,
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/* Core Interrupts */
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Reset_Handler,
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NMI_Handler,
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HardFault_Handler,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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SVCall_Handler,
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0,
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0,
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PendSV_Handler,
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SysTick_Handler,
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/* Peripheral Interrupts */
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WWDG_IRQHandler,
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0,
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RTC_IRQHandler,
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FLASH_IRQHandler,
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RCC_CRS_IRQHandler,
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EXTI0_1_IRQHandler,
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EXTI2_3_IRQHandler,
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EXTI4_15_IRQHandler,
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0,
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DMA_CH1_IRQHandler,
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DMA_CH2_3_IRQHandler,
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DMA_CH4_5_6_7_IRQHandler,
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ADC_IRQHandler,
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LPTIM1_IRQHandler,
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0,
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TIM2_IRQHandler,
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0,
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0,
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0,
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0,
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TIM21_IRQHandler,
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0,
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TIM22_IRQHandler,
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I2C1_IRQHandler,
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0,
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SPI1_IRQHandler,
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0,
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0,
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USART2_IRQHandler,
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LPUART1_IRQHandler
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};
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static void __init_section(unsigned int *src_start, unsigned int *dest_start, unsigned int *dest_end) {
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unsigned int *get, *put;
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put = dest_start;
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get = src_start;
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while ((unsigned int)put < (unsigned int)dest_end) {
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*(put++) = *(get++);
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}
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}
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static void __fill_zero(unsigned int *start, unsigned int *end) {
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while ((unsigned int) start < (unsigned int)end) {
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*(start++) = 0x00000000;
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}
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}
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extern unsigned int __ld_load_data;
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extern unsigned int __ld_sitcm;
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extern unsigned int __ld_eitcm;
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extern unsigned int __ld_sdtcm;
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extern unsigned int __ld_edtcm;
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extern unsigned int __ld_sdata;
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extern unsigned int __ld_edata;
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extern unsigned int __ld_sbss;
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extern unsigned int __ld_ebss;
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extern unsigned int __ld_sheap;
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extern unsigned int __ld_eheap;
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void Reset_Handler(void) {
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/* Stack is already initilized by hardware */
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/* Copy .data section */
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__init_section(&__ld_load_data, &__ld_sdata, &__ld_edata);
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/* Fill bss with zero */
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__fill_zero(&__ld_sbss, &__ld_ebss);
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/* Fill Heap with zero */
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__fill_zero(&__ld_sheap, &__ld_eheap);
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/* Set clocks, waitstates, ART operation etc. */
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__system_init();
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/* C++ init function */
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#if defined(__cplusplus)
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__libc_init_array();
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#endif
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/* Call main */
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main();
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/* Catch return from main() */
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while(1);
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}
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WEAK void __int_default_handler(void)
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{
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while(1);
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}
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135
startup/stm32l010x4.ld
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135
startup/stm32l010x4.ld
Normal file
@@ -0,0 +1,135 @@
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/*
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* STM32L010x4 Linkerscript
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* Copyright (C) 2023 Mario Huettel <mario.huettel@linux.com>
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*
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* This file is part of 'STM32L010x4 code template'.
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*
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* It is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 2 of the License.
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*
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* This code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this template. If not, see <http://www.gnu.org/licenses/>.
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* --------------------------------------------------------------------
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* FLASH: 16K
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* RAM: 2K
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*/
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/* USER PARAMETERS */
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__ld_stack_size = 0x0200;
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/* Due to the limited RAM of this device it is recommended not to use any heap */
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__ld_heap_size = 0x0000;
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/* END OF USER PARAMETERS */
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ENTRY(Reset_Handler)
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__ld_top_of_stack = 0x20000800; /* One byte above the end of the SRAM. Stack is pre-decrewmenting, so this is okay */
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/* Available memory areas */
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MEMORY
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{
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FLASH (xr) : ORIGIN = 0x08000000, LENGTH = 16K
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RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 2K
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}
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SECTIONS
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{
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.vectors : ALIGN(4)
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{
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KEEP(*(.vectors))
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. = ALIGN(4);
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} >FLASH
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.text : ALIGN(4)
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{
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*(.text) /* .text sections (code) */
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*(.text*) /* .text* sections (code) */
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*(.rodata) /* .rodata sections (constants, strings, etc.) */
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*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
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*(.glue_7) /* glue arm to thumb code */
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*(.glue_7t) /* glue thumb to arm code */
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*(.eh_frame)
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KEEP(*(.init)) /* Constructors */
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KEEP(*(.fini)) /* Destructors */
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. = ALIGN(4);
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} >FLASH =0xFF
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.ARM.extab : ALIGN(4)
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{
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*(.ARM.extab* .gnu.linkonce.armextab.*)
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. = ALIGN(4);
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} >FLASH =0xFF
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.ARM : ALIGN(4)
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{
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__exidx_start = .;
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*(.ARM.exidx*)
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__exidx_end = .;
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. = ALIGN(4);
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} >FLASH =0xFF
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/* Constructor/Destructor tables */
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.preinit_array : ALIGN(4)
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{
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP (*(.preinit_array*))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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. = ALIGN(4);
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} >FLASH =0xFF
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.init_array : ALIGN(4)
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{
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array*))
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PROVIDE_HIDDEN (__init_array_end = .);
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. = ALIGN(4);
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} >FLASH =0xFF
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.fini_array : ALIGN(4)
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{
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PROVIDE_HIDDEN (__fini_array_start = .);
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KEEP (*(.fini_array*))
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KEEP (*(SORT(.fini_array.*)))
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PROVIDE_HIDDEN (__fini_array_end = .);
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. = ALIGN(4);
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} >FLASH =0xFF
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/* Initialized Data */
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__ld_load_data = LOADADDR(.data);
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.data : ALIGN(4)
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{
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__ld_sdata = .;
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*(.data)
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*(.data*)
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. = ALIGN(4);
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__ld_edata = .;
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} >RAM AT> FLASH
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/* Uninitialized static data */
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.bss : ALIGN(4)
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{
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__ld_sbss = .;
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*(.bss)
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*(.bss*)
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*(COMMON)
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. = ALIGN(4);
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__ld_ebss = .;
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} >RAM
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.heap_stack (NOLOAD) : ALIGN(4)
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{
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__ld_sheap = .;
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. = . + __ld_heap_size;
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__ld_eheap = .;
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. = . + __ld_stack_size;
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. = ALIGN(4);
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} >RAM
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}
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