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Initiales Beispiel: LED Task -> LED blink

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This commit is contained in:
Carsten Keller
2024-04-19 20:41:35 +02:00
parent 6a213db935
commit 67cbe479b3
14 changed files with 568 additions and 58 deletions
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4
Core/Startup/startup_stm32g071kbtx.s
View File

@@ -192,7 +192,7 @@ g_pfnVectors:
.weak HardFault_Handler
.thumb_set HardFault_Handler,Default_Handler
/*
.weak SVC_Handler
.thumb_set SVC_Handler,Default_Handler
@@ -201,7 +201,7 @@ g_pfnVectors:
.weak SysTick_Handler
.thumb_set SysTick_Handler,Default_Handler
*/
.weak WWDG_IRQHandler
.thumb_set WWDG_IRQHandler,Default_Handler

185
Core/Startup/tx_initialize_low_level.S Normal file
View File

@@ -0,0 +1,185 @@
@/***************************************************************************
@ * Copyright (c) 2024 Microsoft Corporation
@ *
@ * This program and the accompanying materials are made available under the
@ * terms of the MIT License which is available at
@ * https://opensource.org/licenses/MIT.
@ *
@ * SPDX-License-Identifier: MIT
@ **************************************************************************/
@
@
@/**************************************************************************/
@/**************************************************************************/
@/** */
@/** ThreadX Component */
@/** */
@/** Initialize */
@/** */
@/**************************************************************************/
@/**************************************************************************/
@
@#define TX_SOURCE_CODE
@
@
@/* Include necessary system files. */
@
@#include "tx_api.h"
@#include "tx_initialize.h"
@#include "tx_thread.h"
@#include "tx_timer.h"
@
@
.global _tx_thread_system_stack_ptr
.global _tx_initialize_unused_memory
.global __RAM_segment_used_end__
.global _tx_thread_context_save
.global _tx_thread_context_restore
.global _tx_timer_interrupt
.global _vectors
@
.text
.align 4
.syntax unified
@/**************************************************************************/
@/* */
@/* FUNCTION RELEASE */
@/* */
@/* _tx_initialize_low_level Cortex-M0/GNU */
@/* 6.1 */
@/* AUTHOR */
@/* */
@/* William E. Lamie, Microsoft Corporation */
@/* */
@/* DESCRIPTION */
@/* */
@/* This function is responsible for any low-level processor */
@/* initialization, including setting up interrupt vectors, setting */
@/* up a periodic timer interrupt source, saving the system stack */
@/* pointer for use in ISR processing later, and finding the first */
@/* available RAM memory address for tx_application_define. */
@/* */
@/* INPUT */
@/* */
@/* None */
@/* */
@/* OUTPUT */
@/* */
@/* None */
@/* */
@/* CALLS */
@/* */
@/* None */
@/* */
@/* CALLED BY */
@/* */
@/* _tx_initialize_kernel_enter ThreadX entry function */
@/* */
@/* RELEASE HISTORY */
@/* */
@/* DATE NAME DESCRIPTION */
@/* */
@/* 05-19-2020 William E. Lamie Initial Version 6.0 */
@/* 09-30-2020 Scott Larson Modified comment(s), and */
@/* commented out code for */
@/* enabling DWT, */
@/* resulting in version 6.1 */
@/* */
@/**************************************************************************/
@VOID _tx_initialize_low_level(VOID)
@{
.global _tx_initialize_low_level
.thumb_func
_tx_initialize_low_level:
@
@ /* Disable interrupts during ThreadX initialization. */
@
CPSID i
/* Configure handler priorities. */
LDR r1, =0x00000000 // Rsrv, UsgF, BusF, MemM
LDR r0, =0xE000E000 // Build address of NVIC registers
LDR r2, =0xD18 //
ADD r0, r0, r2 //
STR r1, [r0] // Setup System Handlers 4-7 Priority Registers
LDR r1, =0xFF000000 // SVCl, Rsrv, Rsrv, Rsrv
LDR r0, =0xE000E000 // Build address of NVIC registers
LDR r2, =0xD1C //
ADD r0, r0, r2 //
STR r1, [r0] // Setup System Handlers 8-11 Priority Registers
// Note: SVC must be lowest priority, which is 0xFF
LDR r1, =0x40FF0000 // SysT, PnSV, Rsrv, DbgM
LDR r0, =0xE000E000 // Build address of NVIC registers
LDR r2, =0xD20 //
ADD r0, r0, r2 //
STR r1, [r0] // Setup System Handlers 12-15 Priority Registers
// Note: PnSV must be lowest priority, which is 0xFF
/* Return to caller. */
BX lr
// }
/* Define shells for each of the unused vectors. */
.global __tx_BadHandler
.thumb_func
__tx_BadHandler:
B __tx_BadHandler
/* added to catch the hardfault */
.global __tx_HardfaultHandler
.thumb_func
__tx_HardfaultHandler:
B __tx_HardfaultHandler
/* Generic interrupt handler template */
.global __tx_IntHandler
.thumb_func
__tx_IntHandler:
// VOID InterruptHandler (VOID)
// {
PUSH {r0, lr}
#ifdef TX_ENABLE_EXECUTION_CHANGE_NOTIFY
BL _tx_execution_isr_enter // Call the ISR enter function
#endif
/* Do interrupt handler work here */
/* BL <your C Function>.... */
#ifdef TX_ENABLE_EXECUTION_CHANGE_NOTIFY
BL _tx_execution_isr_exit // Call the ISR exit function
#endif
POP {r0, r1}
MOV lr, r1
BX lr
// }
/* System Tick timer interrupt handler */
.global __tx_SysTickHandler
.global SysTick_Handler
.thumb_func
__tx_SysTickHandler:
.thumb_func
SysTick_Handler:
// VOID SysTick_Handler (VOID)
// {
PUSH {r0, lr}
#if (defined(TX_ENABLE_EXECUTION_CHANGE_NOTIFY) || defined(TX_EXECUTION_PROFILE_ENABLE))
BL _tx_execution_isr_enter // Call the ISR enter function
#endif
BL _tx_timer_interrupt
#if (defined(TX_ENABLE_EXECUTION_CHANGE_NOTIFY) || defined(TX_EXECUTION_PROFILE_ENABLE))
BL _tx_execution_isr_exit // Call the ISR exit function
#endif
POP {r0, r1}
MOV lr, r1
BX lr
// }
/* NMI, DBG handlers */
.global __tx_NMIHandler
.thumb_func
__tx_NMIHandler:
B __tx_NMIHandler
.global __tx_DBGHandler
.thumb_func
__tx_DBGHandler:
B __tx_DBGHandler