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  1. Hey all! Finicky issue, and I've been up for way too many hours so I'm breaking from usual habit and posting after only doing minimal digging. Hopefully it's a simple solution. Fingers crossed. Board: TM4C1294NCPDT IDE: CCSv6.1 OS: Ubuntu 16.04 Compiler: GNU v4.9.3 (Linaro) So here's what's up: I'm versed using timers and setting up my vector table properly, or so I thought. Code Composer Studio isn't finding my interrupt handler... It's confuzzling me to say the least... Here's what I'm doing: In startup_gcc.c //......Skipping top of file for readability, all is stock // External declarations for the interrupt handlers used by the application. extern void Timer1AIntHandler(void); //......Skipping a bunch of nonsense for readabilities sake //Beginning of vector table (NOT Blizzard, but Snowflake/RA0) #else __attribute__ ((section(".isr_vector"))) void (* const g_pfnVectors[])(void) = { (void *)&_estack, // The initial stack pointer ResetISR, // The reset handler NmiSR, // The NMI handler FaultISR, // The hard fault handler IntDefaultHandler, // The MPU fault handler IntDefaultHandler, // The bus fault handler IntDefaultHandler, // The usage fault handler 0, // Reserved 0, // Reserved 0, // Reserved 0, // Reserved IntDefaultHandler, // SVCall handler IntDefaultHandler, // Debug monitor handler 0, // Reserved IntDefaultHandler, // The PendSV handler SysTickIntHandler, // The SysTick handler GPIOAIntHandler, // GPIO Port A GPIOBIntHandler, // GPIO Port B GPIOCIntHandler, // GPIO Port C GPIODIntHandler, // GPIO Port D GPIOEIntHandler, // GPIO Port E UARTStdioIntHandler, // For UARTStdio - UART0 Rx and Tx UARTIntHandler1, // UART1 Rx and Tx IntDefaultHandler, // SSI0 Rx and Tx IntDefaultHandler, // I2C0 Master and Slave IntDefaultHandler, // PWM Fault IntDefaultHandler, // PWM Generator 0 IntDefaultHandler, // PWM Generator 1 IntDefaultHandler, // PWM Generator 2 IntDefaultHandler, // Quadrature Encoder 0 ADC0IntHandler, // ADC Sequence 0 IntDefaultHandler, // ADC Sequence 1 IntDefaultHandler, // ADC Sequence 2 IntDefaultHandler, // ADC Sequence 3 IntDefaultHandler, // Watchdog timer IntDefaultHandler, // Timer 0 subtimer A IntDefaultHandler, // Timer 0 subtimer B Timer1AIntHandler, // Timer 1 subtimer A (Thar she blows...) And then in my main project file: // Only showing relevant pieces... // // Prototypes // ========== // Bunch of skipped out-of-scope stuff... void init_Timer(void); void Timer1AIntHandler(void); void init_Timer(void) { // Enable interrupts to the processor. ROM_IntMasterEnable(); // Enable Timer Peripheral ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER1); // Configure Timer1 to be Periodic, with a 100Hz interrupt ROM_TimerConfigure(TIMER1_BASE, TIMER_CFG_PERIODIC); ROM_TimerLoadSet(TIMER1_BASE, TIMER_A, g_ui32SysClock / 100); // Setup the interrupts for Timer1 timeout. ROM_IntEnable(INT_TIMER1A); ROM_TimerIntEnable(TIMER1_BASE, TIMER_TIMA_TIMEOUT); // Enable Timer1A. ROM_TimerEnable(TIMER1_BASE, TIMER_A); } // void loop() is there somewhere, but it's HUGE, doesn't use the timer anyway. void Timer1AIntHandler(void) { // Clear the timer interrupt. ROM_TimerIntClear(TIMER1_BASE, TIMER_TIMA_TIMEOUT); // Call the FatFs tick timer. disk_timerproc(); } I need the timer for FatFS by ChaN. CCS gives me this on building (skipped everything until the linker output): Sooo what's going on here? Does the Energia part of CCS do something different with the timer section of the vector table? I have a custom ADC0IntHandler which works just fine... If anyone needs more info, I'm more than glad to provide it. Frustrations abound, and it especially sucks 'cuz after a 20 hour coding marathon, a problem like this is just... Awful.
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