Tool/software: Code Composer Studio
Hello,
I do not enter my FIFO ISR after sending an I2C message. Prior to sending the message, my transmit FIFO register is set to:
I2cbRegs.I2CFFTX.all = 0110010010100100b
After I write an I2C message, my transmit FIFO register is set as follows:
I2cbRegs.I2CFFTX.all = 0110000010100100b
Bit 7, the transmit interrupt flag, is set, but I never enter my ISR (verified with a breakpoint). The ISR is set in an initialization function with the code below:
DINT;
EALLOW;
PieVectTable.I2CB_FIFO_INT = &[ISR Name];
PieCtrlRegs.PIEACK.all = PIEACK_GROUP8; //Acknowledge interrupt
PieCtrlRegs.PIEIER8.bit.INTx3 = 1; //Enable I2C interrupt
IER |= M_INT8;
EINT;
EDIS;
Per the I2CFFTX register above, the interrupt is enabled and flagged. I'm not sure why I don't enter the ISR.
Thank you,
Cameron
