Debug Monitor Interrupt [not on Cortex-M0 variants]. The vector table below shows the exception vectors of a Armv8-M Mainline processor. Definition of IRQn numbers. Get the priority of an interrupt. Secure Fault Interrupt [only on Armv8-M].
|Date Added:||9 June 2018|
|File Size:||70.86 Mb|
|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|
|Price:||Free* [*Free Regsitration Required]|
Details of how to do this can be found in the FAQ Using library projects from your own projects. Each register can be further devided into preempt priority level and subpriority level. The CMSIS library project may already exist in the workspace if you have imported appropriate example projects.
This function encodes the priority for an interrupt with the priority group PriorityGrouppreemptive priority value PreemptPriorityand subpriority value SubPriority. When you choose to create a CMSIS-based project, the wizard will make a number of modifications to all build configurations of the project that it creates: HardFault and NMI have a fixed negative priority that is higher than any configurable exception or interrupt.
Below is an example for this default handler function. Get Interrupt Target State. Virtualization of interrupt vector table access functions. Debug Monitor Interrupt [not on Cortex-M0 variants].
Definition of IRQn numbers. IRQn cannot be a negative value. This function sets the pending bit for the specified device specific interrupt IRQn. The user application may simply define an interrupt handler function by using the handler name as shown below.
Usage Fault Interrupt [not on Cortex-M0 variants]. Clear Interrupt Target State. Following the processor exception vectors, the vector table contains also the device specific interrupt vectors. To determine the number of bits implemented for interrupt priority-level registers, write 0xFF to one of the priority-level register, then read back the value.
The table below lists the core exception vectors of the various Cortex-M processors. The vector table below shows the exception vectors of a Armv8-M Mainline processor.
LPC Archived Files | NXP Community
Clear a device specific interrupt from pending. Other processor variants may have fewer vectors. This function disables the specified device specific interrupt IRQn. These interrupt handlers can be used directly in application software without being adapted cmais the programmer.
IRQn can can specify any device specific interrupt, or processor exception. Parameters [in] IRQn External interrupt number. This function removes the pending state of the specified device specific interrupt IRQn.
Secure Fault Interrupt [only on Armv8-M]. Parameters [in] IRQn Interrupt Number [in] priority Priority to set Remarks The number of priority levels is configurable and depends on the implementation of the chip designer. Value cannot be negative. The priority specifies the interrupt priority value, whereby lower values indicate a higher priority. What does the Project Wizard actually do? The table below describes the core exception names and their availability in various Cortex-M cores.
Set a device specific interrupt to cmais. This function returns the pending status of the specified device specific interrupt IRQn. Memory Management Interrupt [not on Cortex-M0 variants].
Get the priority of an interrupt.