Unused FIFO mode interrupts.
Baud rates: 115200
f28335 to PC :Sending 12 bytes of data every 500ms
PC to f28335: Sending 12 bytes of data every 10ms
f28335 to PC Sending ok,PC to f28335 Receiving ok.
A minute later 28335 to PC Sending ok but 28335 can't receive PC data.
void scib_fifo_init(void)
{
ScibRegs.SCICCR.all =0x0007;
ScibRegs.SCICTL1.all =0x0003;
ScibRegs.SCICTL2.bit.RXBKINTENA = 1;
ScibRegs.SCICTL2.bit.TXINTENA = 1;
ScibRegs.SCIHBAUD = 0;
ScibRegs.SCILBAUD = 39;
SciaRegs.SCICCR.bit.LOOPBKENA =0;
ScibRegs.SCICTL1.bit.TXENA = 1; // SCI transmitter enable
ScibRegs.SCICTL1.bit.RXENA = 1; // SCI receiver enable
ScibRegs.SCICTL1.bit.SWRESET = 1;
}
// Connected to PIEIER9_3 (use MINT9 and MG93 masks):
#if (G93PL != 0)
interrupt void SCIRXINTB_ISR(void) // SCI-B
{
// Set interrupt priority:
volatile Uint16 TempPIEIER = PieCtrlRegs.PIEIER9.all;
IER |= M_INT9;
IER &= MINT9; // Set "global" priority
PieCtrlRegs.PIEIER9.all &= MG93; // Set "group" priority
PieCtrlRegs.PIEACK.all = 0xFFFF; // Enable PIE interrupts
EINT;
// Insert ISR Code here.......
Uint8 rcvdat;
rcvdat = ScibRegs.SCIRXBUF.all;
if(state_machine == 0)
{
if(rcvdat == 'A')
{
state_machine = 1;
}
else
{
state_machine = 0;
}
}
else if(state_machine == 1)
{
if(rcvdat == 'A')
{
state_machine = 2;
}
else
{
state_machine = 0;
}
}
else if(state_machine == 2)
{
if(rcvdat == 'B')
{
state_machine = 3;
}
else
{
state_machine = 0;
}
}
else if(state_machine == 3)
{
if(rcvdat == 'B')
{
state_machine = 4;
}
else
{
state_machine = 0;
}
}
else if(state_machine == 4)
{
if(j<3)
{
DatLen =(DatLen|rcvdat)<<8;
j++;
}
else
{
j=0;
DatLen =DatLen|rcvdat;
state_machine=5;
}
}
else if(state_machine == 5)
{
FuncID = rcvdat;
state_machine = 6;
}
else if(state_machine == 6)
{
if(i<(DatLen-2))
{
RDATA[i] = rcvdat;
i++;
}
else
{
RDATA[i] = rcvdat;
state_machine = 7;
i = 0 ;
}
}
else if(state_machine == 7)
{
if(rcvdat == 'C')
{
state_machine = 8;
}
else
{
state_machine = 0;
}
}
else if(state_machine == 8)
{
if(rcvdat == 'C')
{
state_machine = 9;
}
else
{
state_machine = 0;
}
}
else if(state_machine == 9)
{
if(rcvdat == 'D')
{
state_machine = 10;
}
else
{
state_machine = 0;
}
}
else if(state_machine == 10)
{
if(rcvdat == 'D')
{
state_machine = 0 ;
UcStatus = 1;
}
else
{
state_machine = 0 ;
}
}
// Restore registers saved:
DINT;
PieCtrlRegs.PIEIER9.all = TempPIEIER;
// Next two lines for debug only to halt the processor here
// Remove after inserting ISR Code
//asm (" ESTOP0");
//for(;;);
}
#endif
// Connected to PIEIER9_4 (use MINT9 and MG94 masks):
#if (G94PL != 0)
interrupt void SCITXINTB_ISR(void) // SCI-B
{
// Set interrupt priority:
volatile Uint16 TempPIEIER = PieCtrlRegs.PIEIER9.all;
IER |= M_INT9;
IER &= MINT9; // Set "global" priority
PieCtrlRegs.PIEIER9.all &= MG94; // Set "group" priority
PieCtrlRegs.PIEACK.all = 0xFFFF; // Enable PIE interrupts
EINT;
// Insert ISR Code here.......
// Restore registers saved:
DINT;
PieCtrlRegs.PIEIER9.all = TempPIEIER;
// Next two lines for debug only to halt the processor here
// Remove after inserting ISR Code
//asm (" ESTOP0");
//for(;;);
}
#endif
Anyone can help me.
Best regards.
