diff options
Diffstat (limited to 'ports_arch/ARMv8-M/threadx/iar/src')
4 files changed, 40 insertions, 29 deletions
diff --git a/ports_arch/ARMv8-M/threadx/iar/src/tx_iar.c b/ports_arch/ARMv8-M/threadx/iar/src/tx_iar.c index 238b485e..ab6c209c 100644 --- a/ports_arch/ARMv8-M/threadx/iar/src/tx_iar.c +++ b/ports_arch/ARMv8-M/threadx/iar/src/tx_iar.c @@ -9,6 +9,7 @@ * SPDX-License-Identifier: MIT **************************************************************************/ +// Portions of this file were generated with AI assistance. /**************************************************************************/ /**************************************************************************/ @@ -270,7 +271,7 @@ TX_MUTEX *mutex_ptr; mutex_ptr = &__tx_iar_file_lock_mutexes[__tx_iar_file_lock_next_free_mutex++]; /* Check for wrap-around on the next free mutex. */ - if (__tx_iar_file_lock_next_free_mutex >= _MAX_LOCK) + if (__tx_iar_file_lock_next_free_mutex >= _MAX_FLOCK) { /* Yes, set the free index back to 0. */ @@ -287,7 +288,7 @@ TX_MUTEX *mutex_ptr; } /* Determine if a free mutex was found. */ - if (i >= _MAX_LOCK) + if (i >= _MAX_FLOCK) { /* Error! No more free mutexes! */ @@ -678,7 +679,7 @@ TX_MUTEX *mutex_ptr; mutex_ptr = &__tx_iar_file_lock_mutexes[__tx_iar_file_lock_next_free_mutex++]; /* Check for wrap-around on the next free mutex. */ - if (__tx_iar_file_lock_next_free_mutex >= _MAX_LOCK) + if (__tx_iar_file_lock_next_free_mutex >= _MAX_FLOCK) { /* Yes, set the free index back to 0. */ @@ -695,7 +696,7 @@ TX_MUTEX *mutex_ptr; } /* Determine if a free mutex was found. */ - if (i >= _MAX_LOCK) + if (i >= _MAX_FLOCK) { /* Error! No more free mutexes! */ diff --git a/ports_arch/ARMv8-M/threadx/iar/src/tx_initialize_low_level.s b/ports_arch/ARMv8-M/threadx/iar/src/tx_initialize_low_level.s index 6d8e07e8..9802be78 100644 --- a/ports_arch/ARMv8-M/threadx/iar/src/tx_initialize_low_level.s +++ b/ports_arch/ARMv8-M/threadx/iar/src/tx_initialize_low_level.s @@ -8,6 +8,7 @@ * * SPDX-License-Identifier: MIT **************************************************************************/ +// Portions of this file were generated with AI assistance. /**************************************************************************/ @@ -24,11 +25,9 @@ #include "tx_user.h" #endif - EXTERN _tx_thread_system_stack_ptr EXTERN _tx_initialize_unused_memory EXTERN _tx_timer_interrupt EXTERN __main - EXTERN __vector_table EXTERN _tx_thread_current_ptr EXTERN _tx_thread_stack_error_handler @@ -89,25 +88,17 @@ _tx_initialize_low_level: LDR r1, =__tx_free_memory_start // Build first free address STR r1, [r0] // Setup first unused memory pointer - /* Setup Vector Table Offset Register. */ - MOV r0, #0xE000E000 // Build address of NVIC registers - LDR r1, =__vector_table // Pickup address of vector table - STR r1, [r0, #0xD08] // Set vector table address - /* Enable the cycle count register. */ // LDR r0, =0xE0001000 // Build address of DWT register // LDR r1, [r0] // Pickup the current value // ORR r1, r1, #1 // Set the CYCCNTENA bit // STR r1, [r0] // Enable the cycle count register - /* Set system stack pointer from vector value. */ - LDR r0, =_tx_thread_system_stack_ptr // Build address of system stack pointer - LDR r1, =__vector_table // Pickup address of vector table - LDR r1, [r1] // Pickup reset stack pointer - STR r1, [r0] // Save system stack pointer - /* Configure SysTick. */ MOV r0, #0xE000E000 // Build address of NVIC registers + MOV r1, #0 // Build value for SysTick reset + STR r1, [r0, #0x10] // Reset SysTick Control + STR r1, [r0, #0x18] // Reset SysTick Counter Value LDR r1, =SYSTICK_CYCLES STR r1, [r0, #0x14] // Setup SysTick Reload Value MOV r1, #0x7 // Build SysTick Control Enable Value diff --git a/ports_arch/ARMv8-M/threadx/iar/src/tx_thread_schedule.s b/ports_arch/ARMv8-M/threadx/iar/src/tx_thread_schedule.s index 84f2043f..4fa3a10e 100644 --- a/ports_arch/ARMv8-M/threadx/iar/src/tx_thread_schedule.s +++ b/ports_arch/ARMv8-M/threadx/iar/src/tx_thread_schedule.s @@ -9,6 +9,8 @@ * SPDX-License-Identifier: MIT **************************************************************************/ +// Portions of this file were generated with AI assistance. + /**************************************************************************/ /**************************************************************************/ @@ -129,7 +131,7 @@ __tx_ts_handler: BL _tx_execution_thread_exit // Call the thread exit function POP {r0, lr} // Recover LR #ifdef TX_PORT_USE_BASEPRI - MOV r0, 0 // Disable BASEPRI masking (enable interrupts) + MOV r0, #0 // Disable BASEPRI masking (enable interrupts) MSR BASEPRI, r0 #else CPSIE i // Enable interrupts @@ -278,9 +280,19 @@ __tx_ts_wait: #endif #ifdef TX_ENABLE_WFI +#ifdef TX_PORT_USE_BASEPRI + CPSID i // Mask every interrupt with PRIMASK, which WFI ignores + MOV r1, #0 // Clear BASEPRI so that an interrupt masked by it + MSR BASEPRI, r1 // is still able to wake the processor +#endif DSB // Ensure no outstanding memory transactions WFI // Wait for interrupt ISB // Ensure pipeline is flushed +#ifdef TX_PORT_USE_BASEPRI + LDR r1, =TX_PORT_BASEPRI // Restore the BASEPRI mask + MSR BASEPRI, r1 + CPSIE i // Clear PRIMASK; a pending interrupt is taken here +#endif #endif #ifdef TX_LOW_POWER diff --git a/ports_arch/ARMv8-M/threadx/iar/src/tx_thread_system_return.s b/ports_arch/ARMv8-M/threadx/iar/src/tx_thread_system_return.s index f2a187ea..461d411a 100644 --- a/ports_arch/ARMv8-M/threadx/iar/src/tx_thread_system_return.s +++ b/ports_arch/ARMv8-M/threadx/iar/src/tx_thread_system_return.s @@ -1,16 +1,19 @@ -/*************************************************************************** - * Copyright (c) 2024 Microsoft Corporation - * Copyright (c) 2026-present Eclipse ThreadX contributors - * - * 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 - **************************************************************************/ +;*************************************************************************** +;* Copyright (c) 2024 Microsoft Corporation +;* Copyright (c) 2026-present Eclipse ThreadX contributors +;* +;* 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 +;************************************************************************** +; Portions of this file were generated with AI assistance. + + +;************************************************************************** -/**************************************************************************/ /**************************************************************************/ /** */ /** ThreadX Component */ @@ -69,6 +72,8 @@ _tx_thread_system_return: MOV r0, #0x10000000 // Load PENDSVSET bit MOV r1, #0xE000E000 // Load NVIC base STR r0, [r1, #0xD04] // Set PENDSVBIT in ICSR + DSB SY // Ensure memory access is complete + ISB SY // Flush pipeline MRS r0, IPSR // Pickup IPSR CMP r0, #0 // Is it a thread returning? BNE _isr_context // If ISR, skip interrupt enable @@ -77,10 +82,12 @@ _tx_thread_system_return: MOV r0, #0 MSR BASEPRI, r0 // Enable interrupts MSR BASEPRI, r1 // Restore original interrupt posture + ISB SY // Flush pipeline #else MRS r1, PRIMASK // Thread context returning, pickup PRIMASK CPSIE i // Enable interrupts MSR PRIMASK, r1 // Restore original interrupt posture + ISB SY // Flush pipeline #endif _isr_context: BX lr // Return to caller |