• Unable to determine offending instruction: usage fault illegal unaligned load or store cortex m7 keil mdk pro
    Problem Once in a blue moon (every ~500 hours of run time, non-deterministic) I am getting a Usage Fault/ Illegal unaligned load or store. Please, help me to trace the fault to actual offending instruction...
  • How to debug cause of Hard Fault on CortexM0?
    Dear everyone, I am developing an MCU system by using the DesignStart Pro, CortexM0 version. I program the DesignStart Pro RTL into Altera FPGA, and I use Keil C for software building. The system...
  • Unable to Download Code to Controller
    Hello All, We have custom PCB having ATSAME54P20A microcontroller. Suddenly today I started getting CPU Status - LOCKUP error and I am unable to download the code to the microcontroller. Before, that...
  • Random Hardfaults on a cortex-M7 microcontroller
    Hello, I am facing random HardFaults on a cortex-M7 based microcontroller (STM32F722). They happen at various places in code, sometimes even during stack's initialization. Stack's analysis do not...
  • Cortex-M7 Load/store timing execution ?
    I'm not a native English speaker. So, sorry for the broken English. I'm intend to develop a system where the microcontroller will interface with a 8 bit parallel port IC. The bytes will be loaded into...