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Interrupt Priority Grouping in ARM Cortex-M NVIC

WebThe Stack Pointer (SP) is register R13. In Thread mode, bit [1] of the CONTROL register indicates the stack pointer to use: 0 = Main Stack Pointer (MSP). This is the reset value. 1 … WebJul 9, 2024 · Answer Setting the PRIMASK bit (bit 0) in the Priority Mask Register will prevent the activation of all exceptions with configurable priority. This does not prevent interrupts from triggering, but it does prevent the interrupt service routine (ISR) … new house christmas ornament

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WebThe CONTROL register controls the stack used and the privilege level for software execution when the processor is in thread mode and, if implemented, indicates whether the FPU state is active. This register uses the following bits: CONTROL [2] [only Cortex-M4 and Cortex-M7] =0 FPU not active =1 FPU active CONTROL [1] WebApr 11, 2024 · Second, for interface controller you need to set up Priority Mask Register. By value in that register you can mask low priority interrupt, so they are never fired. Here is also worth to mention that in GIC logic value 0xff corresponds to lowest priority, 0x00 corresponds to highest. Copy ptr:: write_volatile (GICC_PMR, 0xff); Webuint32_t basePri ) Set Base Priority (non-secure) Assigns the given value to the non-secure Base Priority register when in secure state. Parameters [in] basePri Base Priority value to set See Also __set_BASEPRI void __TZ_set_CONTROL_NS ( uint32_t control ) Set Control register (non-secure) in the latter half of the last century