TMS320F280049C: SCI RX Frame Error when receiving continuous stream of data with no gap/delays in between

One solution is to either change the transmitter module to send 2 stop bit to allow the ISR to receive the data correctly, or use the following code to read the data without needing the ISR.

//
// Included Files
//
#include "driverlib.h"
#include "device.h"
#include "board.h"

uint32_t sciInterruptStatus = 0;
uint16_t rawReceivedData[6] = {0};
uint16_t rawReceivedDataIndex = 0;
uint16_t dataRecCount = 0;

//
// Debug variables
//
uint16_t debug_numberOfRXInts = 0;
uint16_t debug_numberOfErrorInts = 0;

//
// Main
//
void main(void)
{
    //
    // Initialize device clock and peripherals
    //
    Device_init();

    //
    // Setup GPIO by disabling pin locks and enabling pullups
    //
    Device_initGPIO();

    //
    // Initialize PIE and clear PIE registers. Disables CPU interrupts.
    //
    Interrupt_initModule();

    // Initialize the PIE vector table with pointers to the shell Interrupt
    // Service Routines (ISR).
    //
    Interrupt_initVectorTable();

    //
    // Board Initialization
    //
    Board_init();

    //
    // Enables CPU interrupts
    //
    Interrupt_enableMaster();

    for(;;)
    {
        rawReceivedData[rawReceivedDataIndex++] = SCI_readCharBlockingFIFO(mySCI0_BASE);
        rawReceivedData[rawReceivedDataIndex++] = SCI_readCharBlockingFIFO(mySCI0_BASE);
        rawReceivedData[rawReceivedDataIndex++] = SCI_readCharBlockingFIFO(mySCI0_BASE);
        rawReceivedData[rawReceivedDataIndex++] = SCI_readCharBlockingFIFO(mySCI0_BASE);
        rawReceivedData[rawReceivedDataIndex++] = SCI_readCharBlockingFIFO(mySCI0_BASE);
        rawReceivedData[rawReceivedDataIndex++] = SCI_readCharBlockingFIFO(mySCI0_BASE);
        rawReceivedDataIndex = 0;
    }
}

interrupt void INT_mySCI0_RX_ISR()
{
    sciInterruptStatus = SCI_getInterruptStatus(mySCI0_BASE);
    if (sciInterruptStatus & SCI_INT_FE)
    {
        debug_numberOfErrorInts++;
        SCI_resetChannels(mySCI0_BASE);
        SCI_performSoftwareReset(mySCI0_BASE);
    }
    else if (sciInterruptStatus & SCI_INT_RXFF)
    {
        debug_numberOfRXInts++;
        //
        // Reading the values in the main loop instead.
        //

    }
    SCI_clearInterruptStatus(mySCI0_BASE, SCI_INT_RXFF | SCI_INT_FE | SCI_INT_RXERR);
    Interrupt_clearACKGroup(INT_mySCI0_RX_INTERRUPT_ACK_GROUP);
}


interrupt void INT_mySCI0_TX_ISR()
{
    //
    // This is only used if you wish to send the data using the ISR
    // We don't have this enabled by default.
    //
    SCI_clearInterruptStatus(mySCI0_BASE, SCI_INT_TXFF);
    Interrupt_clearACKGroup(INT_mySCI0_TX_INTERRUPT_ACK_GROUP);
}