Other Parts Discussed in Thread: TMS320F28377D
#include "F28x_Project.h" // Device Headerfile and Examples Include File
//#include "stdio.h"
#define CPU_FREQ 200E6
#define LSPCLK_FREQ CPU_FREQ/4
#define dx_baud 1
interrupt void sciaRxFifoIsr(void);
interrupt void scibRxFifoIsr(void);
void scia_fifo_init(void);
void scib_fifo_init(void);
Uint16 rdataA[8]; // Received data for SCI-A
Uint16 rdataB[8]; // Received data for SCI-A
Uint16 rxcount;
Uint16 rxcount2;
Uint32 loopcount;
Uint16 countm;
void main(void)
{
rxcount = 0;
rxcount2 = 0;
loopcount = 0;
InitSysCtrl();
EALLOW; // PWM 모듈에 공급되는 시스템 클럭 분주
ClkCfgRegs.PERCLKDIVSEL.bit.EPWMCLKDIV = 0; // 0: 1분주, 1: 1/2분주
EDIS;
InitGpio();
EALLOW;
// GPIO FOR A SCI
GPIO_SetupPinMux(28, GPIO_MUX_CPU1, 1);
GPIO_SetupPinOptions(28, GPIO_INPUT, GPIO_PUSHPULL);
GPIO_SetupPinMux(29, GPIO_MUX_CPU1, 1);
GPIO_SetupPinOptions(29, GPIO_OUTPUT, GPIO_ASYNC);
GPIO_SetupPinMux(55, GPIO_MUX_CPU1, 1);
GPIO_SetupPinOptions(55, GPIO_INPUT, GPIO_PUSHPULL);
GPIO_SetupPinMux(54, GPIO_MUX_CPU1, 1);
GPIO_SetupPinOptions(54, GPIO_OUTPUT, GPIO_ASYNC);
EDIS;
DINT;
InitPieCtrl();
IER = 0x0000;
IFR = 0x0000;
InitPieVectTable();
EALLOW; // This is needed to write to EALLOW protected registers
PieVectTable.SCIA_RX_INT = &sciaRxFifoIsr;
PieVectTable.SCIB_RX_INT = &scibRxFifoIsr;
// Step 4. Initialize the Device Peripherals:
scia_fifo_init(); // Init SCI-A
scib_fifo_init(); // Init SCI-B
// Step 5. User specific code, enable interrupts:
// Init send data. After each transmission this data
// will be updated for the next transmission
// Enable interrupts required for this example
PieCtrlRegs.PIECTRL.bit.ENPIE = 1; // Enable the PIE block
PieCtrlRegs.PIEIER9.bit.INTx1=1; // PIE Group 9, INT1
PieCtrlRegs.PIEIER9.bit.INTx2=0; // PIE Group 9, INT2
PieCtrlRegs.PIEIER9.bit.INTx3=1; // PIE Group 9, INT1
PieCtrlRegs.PIEIER9.bit.INTx4=0; // PIE Group 9, INT2
IER = 0x100; // Enable CPU INT
IER |= M_INT9;
EINT; // Enable Global interrupt INTM
ERTM; // Enable Global realtime interrupt DBGM
// Step 6. IDLE loop. Just sit and loop forever (optional):
for(;;)
{
ScibRegs.SCITXBUF.all= 0x01;
DELAY_US(10);
loopcount++;
}
}
interrupt void sciaRxFifoIsr(void)
{
Uint16 i;
rxcount++;
for(i=0;i<8;i++)
{
rdataA[i]=SciaRegs.SCIRXBUF.all; // Read data
}
SciaRegs.SCIFFRX.bit.RXFFOVRCLR=1; // Clear Overflow flag
SciaRegs.SCIFFRX.bit.RXFFINTCLR=1; // Clear Interrupt flag
PieCtrlRegs.PIEACK.all|=0x100; // Issue PIE ack
}
interrupt void scibRxFifoIsr(void)
{
Uint16 i;
rxcount2++;
for(i=0;i<8;i++)
{
rdataB[i]=ScibRegs.SCIRXBUF.all; // Read data
}
ScibRegs.SCIFFRX.bit.RXFFOVRCLR=1; // Clear Overflow flag
ScibRegs.SCIFFRX.bit.RXFFINTCLR=1; // Clear Interrupt flag
PieCtrlRegs.PIEACK.all|=0x100; // Issue PIE ack
}
void scia_fifo_init()
{
SciaRegs.SCICCR.all =0x0007;
SciaRegs.SCICTL1.all =0x0003;
SciaRegs.SCICTL1.bit.SWRESET = 0;
SciaRegs.SCICCR.bit.SCICHAR = 7;
SciaRegs.SCICCR.bit.LOOPBKENA = 0;
SciaRegs.SCICTL1.all = 0x0003;
SciaRegs.SCICTL1.bit.RXENA = 1;
SciaRegs.SCICTL1.bit.TXENA = 1;
SciaRegs.SCICTL2.bit.TXINTENA = 0;
SciaRegs.SCICTL2.bit.RXBKINTENA = 1;
SciaRegs.SCIHBAUD.all = 0x0002; // 9600 baud @LSPCLK = 50MHz (200 MHz SYSCLK).
SciaRegs.SCILBAUD.all = 0x008B;
SciaRegs.SCICTL1.bit.SWRESET = 1;
PieCtrlRegs.PIEIER9.bit.INTx2 = 0;
PieCtrlRegs.PIEIER9.bit.INTx1 = 1;
}
void scib_fifo_init()
{
ScibRegs.SCICCR.all =0x0007; // 1 stop bit, No loopback
// No parity,8 char bits,
// async mode, idle-line protocol
ScibRegs.SCICTL1.all =0x0003; // enable TX, RX, internal SCICLK,
// Disable RX ERR, SLEEP, TXWAKE
ScibRegs.SCICTL1.bit.SWRESET = 0;
ScibRegs.SCICCR.bit.SCICHAR = 7;
ScibRegs.SCICCR.bit.LOOPBKENA = 0;
ScibRegs.SCICTL1.all = 0x0003;
ScibRegs.SCICTL1.bit.RXENA = 1;
ScibRegs.SCICTL1.bit.TXENA = 1;
ScibRegs.SCICTL2.bit.TXINTENA = 0;
ScibRegs.SCICTL2.bit.RXBKINTENA = 1;
ScibRegs.SCIHBAUD.all = 0x0002; // 9600 baud @LSPCLK = 50MHz (200 MHz SYSCLK).
ScibRegs.SCILBAUD.all = 0x008B;
ScibRegs.SCICTL1.bit.SWRESET = 1;
PieCtrlRegs.PIEIER9.bit.INTx4 = 0;
PieCtrlRegs.PIEIER9.bit.INTx3 = 1;
}
I want to run scia and scib.
scia is working on the code above, but i can not run the scib.
could you tell me what is wrong in the code?
thanks.
