• Cortex M7 : Exception return query
    Hi I am working on Cortex M7. I am generating some interrupts and according to it my ISR is being called which I have already installed. After the execution of the ISR the PC is not returning to the instruction...
  • Cortex M4 - Returning from Interrupt
    Hi, I'm using the STM32 F407 (Cortex M4), and I am also only using assembly in uVision IDE. So far I have managed to setup a ISR for a pushbutton generated interrupt via GPIO. This all works, I get...
  • Boot Sequence of ARM Cortex, ARMCC
    I have few queries regarding ARM Cortex boot sequence. I am using Keil mdk-5 with tm4c123gh6pm Microcontroller. While going through assembly startup (startup_xx.S) code, the following sequence is given...
  • Is offset of 30 in load and store instructions shows an exceptional case?
    Hello to all, I am working on ARM Cortex-M4 and the memory arrangement is the little endian. I have started working on the memory instructions and for that purpose, I have chosen the offset addressing...
  • Forced Hardfault (INVPC) Exception Error
    Using ARM coretx-M chip set Getting random INVPC hard fault exception error, while running iperf tool for measuring n/w throughput. Hard fault reg: 0x40000000 xPSR: 0x01000000 PRIMASK: 0x00000001...