diff options
Diffstat (limited to 'ports_arch/ARMv7-M/threadx/gnu')
4 files changed, 25 insertions, 15 deletions
diff --git a/ports_arch/ARMv7-M/threadx/gnu/CMakeLists.txt b/ports_arch/ARMv7-M/threadx/gnu/CMakeLists.txt index ab9464d2..4abc1c06 100644 --- a/ports_arch/ARMv7-M/threadx/gnu/CMakeLists.txt +++ b/ports_arch/ARMv7-M/threadx/gnu/CMakeLists.txt @@ -13,6 +13,8 @@ target_sources(${PROJECT_NAME} PRIVATE # {{END_TARGET_SOURCES}} ) -target_include_directories(${PROJECT_NAME} PUBLIC +target_include_directories(${PROJECT_NAME} + SYSTEM + PUBLIC ${CMAKE_CURRENT_LIST_DIR}/inc ) diff --git a/ports_arch/ARMv7-M/threadx/gnu/example_build/tx_initialize_low_level.S b/ports_arch/ARMv7-M/threadx/gnu/example_build/tx_initialize_low_level.S index 8fce83db..a8bb445b 100644 --- a/ports_arch/ARMv7-M/threadx/gnu/example_build/tx_initialize_low_level.S +++ b/ports_arch/ARMv7-M/threadx/gnu/example_build/tx_initialize_low_level.S @@ -8,6 +8,7 @@ * * SPDX-License-Identifier: MIT **************************************************************************/ +// Portions of this file were generated with AI assistance. /**************************************************************************/ @@ -20,12 +21,10 @@ /**************************************************************************/ /**************************************************************************/ - .global _tx_thread_system_stack_ptr .global _tx_initialize_unused_memory .global __RAM_segment_used_end__ .global _tx_timer_interrupt .global __main - .global _vectors .global __tx_NMIHandler // NMI .global __tx_BadHandler // HardFault .global __tx_SVCallHandler // SVCall @@ -90,20 +89,12 @@ _tx_initialize_low_level: ADD r1, r1, #4 // STR r1, [r0] // Setup first unused memory pointer - /* Setup Vector Table Offset Register. */ - MOV r0, #0xE000E000 // Build address of NVIC registers - LDR r1, =_vectors // Pickup address of vector table - STR r1, [r0, #0xD08] // Set vector table address - - /* Set system stack pointer from vector value. */ - LDR r0, =_tx_thread_system_stack_ptr // Build address of system stack pointer - LDR r1, =_vectors // Pickup address of vector table - LDR r1, [r1] // Pickup reset stack pointer - STR r1, [r0] // Save system stack pointer - #ifndef TX_NO_TIMER /* 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/ARMv7-M/threadx/gnu/src/tx_thread_schedule.S b/ports_arch/ARMv7-M/threadx/gnu/src/tx_thread_schedule.S index 65c5ad50..182eb81a 100644 --- a/ports_arch/ARMv7-M/threadx/gnu/src/tx_thread_schedule.S +++ b/ports_arch/ARMv7-M/threadx/gnu/src/tx_thread_schedule.S @@ -8,6 +8,7 @@ * * SPDX-License-Identifier: MIT **************************************************************************/ +// Portions of this file were generated with AI assistance. /**************************************************************************/ @@ -137,7 +138,7 @@ __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 @@ -265,9 +266,19 @@ __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/ARMv7-M/threadx/gnu/src/tx_thread_system_return.S b/ports_arch/ARMv7-M/threadx/gnu/src/tx_thread_system_return.S index 8b681747..ab050566 100644 --- a/ports_arch/ARMv7-M/threadx/gnu/src/tx_thread_system_return.S +++ b/ports_arch/ARMv7-M/threadx/gnu/src/tx_thread_system_return.S @@ -9,6 +9,8 @@ * SPDX-License-Identifier: MIT **************************************************************************/ +// Portions of this file were generated with AI assistance. + /**************************************************************************/ /**************************************************************************/ @@ -73,6 +75,8 @@ _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 #0xF // Ensure memory access is complete + ISB #0xF // Flush pipeline MRS r0, IPSR // Pickup IPSR CMP r0, #0 // Is it a thread returning? BNE _isr_context // If ISR, skip interrupt enable @@ -81,10 +85,12 @@ _tx_thread_system_return: MOV r0, #0 MSR BASEPRI, r0 // Enable interrupts MSR BASEPRI, r1 // Restore original interrupt posture + ISB #0xF // Flush pipeline #else MRS r1, PRIMASK // Thread context returning, pickup PRIMASK CPSIE i // Enable interrupts MSR PRIMASK, r1 // Restore original interrupt posture + ISB #0xF // Flush pipeline #endif _isr_context: BX lr // Return to caller |