Forum Post: RE: Missing UART Interrupt SYSBIOS on AM1806

Hi Thomas,

can you check what the value of UART1 to be the correct interrupt vector?

I looked that the code contents of those two functions and I don't see anything that would prevent it from being enabled again. Does hwiState have a non-zero value?

/*  *  ======== Hwi_disableInterrupt ========  */ UInt Hwi_disableInterrupt(UInt intNum) {     UInt oldEnableState, index;      index = intNum >> 5;      oldEnableState = Hwi_cpIntc.ESR[index] & (1 << (intNum & 0x1f));      Hwi_cpIntc.EICR = intNum; /* clear the enable for this int */      return oldEnableState; }  /*  *  ======== Hwi_RestoreInterrupt ========  */ Void Hwi_restoreInterrupt(UInt intNum, UInt key) {     if (key) {         Hwi_cpIntc.EISR = intNum; /* set the enable for this int */     }     else {         Hwi_cpIntc.EICR = intNum; /* clear the enable for this int */     } }

Just as a test, could you try using Hwi_disable() and Hwi_restore()? These two functions should just touch the global interrupt enable bit.