• TM4C123 UART1_Handler

    Hi All;

    I'm using uvision compiler. Below A portion of my code regarding UART1 RX interrupt.

    I was using reading flags. I want to use interrupt.

    I didn't get an interrupt. What is wrong?

    #define UART_INT_EN *((unsigned long int *)(0xE000E100…

  • Debug an INVPC exception

    Hi. I have an INVPC exception that I am trying to debug on a Cortex M4 STM32. The stack contains the following values:

    0x08003555 xPSR
    0x08006824 PC
    0x08006824 LR
    0x00000000 R12
    0x08003341 R3
    0x08006824 R2
    0xFFFFFFFD R2
    0x0000FFFF R0

    The PC and LR both point…