Cortex-M4 interrupts behaviour when same interrupt vector has multiple interrupts

Hello, I am using STM32F407ZGT6 Cortex-M4 microcontroller. This controller has same interrupt vector for 5 external interrupts i.e., NVIC (EXTI9_5) for EXTI5, EXTI6, EXTI7, EXTI8 and EXTI9 interrupts...
Cortex-M4 interrupts behaviour when same interrupt vector has multiple interrupts

Hello, I am using STM32F407ZGT6 Cortex-M4 microcontroller. This controller has same interrupt vector for 5 external interrupts i.e., NVIC (EXTI9_5) for EXTI5, EXTI6, EXTI7, EXTI8 and EXTI9 interrupts...
Interrupt while Interrupt

Hello, i need to program a T89C51CC01 with Keil. I really don't know whether I should ask my question in this forum, but I just try. EX0 (external interrupt 0) gets executed. While the procedure...
interrupt stops interrupting

Myself and my partner have written a program to interface keypad(4x4)&lcd to a targetboard (c8051) and also we have written a subroutine to realise a realtime clock using timer3 interrupt. The problem...
Interrupting the interrupt

Hello, i have a problem. There are allways difficulties in programms with IRQ und FIQ. So i wrote this code to investigate where the problem is. I use two Timer, Timer0 and Timer1 to generate interrupts...