Sci b problem

Hi Sagar,

but if I disable the FIFO mode interrupt is not working

Any particular reason you're disabling the FIFO mode? Also, SCIb is connected to GSM module right?

Regards,

Gautam

Hi Gautam,

I am using F28069 IC.I tried with scia_loopback_interrupts example in which I changed the intialztion of SCIA to the SCIB and checked it is working,then I Disable the FIFO mode and Loop back mode & it is not working.I am not yet connected GSM module to SCI Pins.

Regards,

Sagar

Hi Sagar,

Here's the table where Interrupts flag status have been declared:

Also, please go through the SCI without FIFO section in doc. SPRUH18D

Again, my question is why not FIFO? Why are you disabling FIFO mode?

Regards,

Gautam

Hi Gautam,

As per application I am sending at a time only 1 byte not 1 word .After 1 byte sending I am expecting 1 byte from rX.

So I want to used Without FIFO.

Regards,

Sagar

Got it Sagar, so what you can do first is: check with the sci_loopback example. Try implementing it without FIFO and revert if you're successfull or not.

Regards,

Gautam

Hi Gautam,

Thanks for the support.

Now RX interrupt is coming but TX interrupt is not coming.

Regards,

SAGAR

Good good, some minor issue I guess. Check with these parameters:

1. Tx interrupt routine

2. Tx transmission data

Regards,

Gautam

Hi Gautam,

I written the data to TXBUF in Interrupt routine it is not transmitted to hyper terminal but If I send the data to TXBUF in main function then data is transmitted on hyper terminal.

How to transmit the data through interrupt.

Regards,

Sagar

Here's the Tx interrupt function:

__interrupt void sciaTxIsr(void)
{
    Uint16 i;
    for(i=0; i< 2; i++)
    {
       SciaRegs.SCITXBUF=sdataA[i];     // Send data
    }

    for(i=0; i< 2; i++)                 //Increment send data for next cycle
    {
       sdataA[i] = (sdataA[i]+1) & 0x00FF;
    }

    SciaRegs.SCIFFTX.bit.TXFFINTCLR=1;  // Clear SCI Interrupt flag
    PieCtrlRegs.PIEACK.all|=0x100;      // Issue PIE ACK
}

Regards,

Gautam

Hi,

I have done this but it is not working.

Regards,

sagar

Phir toh bhai, DSO leke baithna padega :)   (Then we'll have to sit with DSO and check)

Regards,

Gautam