• 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...
  • 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...
  • Hardfault error on callback
    Hi, I'm trying to figure out why a registered callback function is failing. C: socket->cb.socket(socket_idx, 0); ASM: It fails at: 00415B88 ldr r3, [r4, #60] 00415B8A mov r1, r11 00415B8C mov...
  • Cortex-M0+ core Hang up in FFFF FFFEh address when executing DSB instruction.
    Hi, I am porting FreeRTOS to my M0+ device now. I faced an issue CPU hang-up when DSB instruction executed. Then Program Counter showed "FFFF FFFEh" and Exc value of xpsr is 0x03. So, I knew Hard_Fault...