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89 lines
#include "F28x_Project.h"
#include "F28x_Project.h"


void scib_echoback_init(void);
void scib_echoback_init(void);
void scib_fifo_init(void);
void scib_fifo_init(void);
void scib_xmit(int a);
void scib_xmit(int a);
void scib_msg(char *msg);
void scib_msg(char *msg);




void main(void)
void main(void)
{
{
char *msg;
char *msg;


InitSysCtrl();
InitSysCtrl();


// GPIO
// GPIO
InitGpio();
InitGpio();


EALLOW;
EALLOW;
// Set the mux to SCITXDB on GPIO 18
// Set the mux to SCITXDB on GPIO 29
GpioCtrlRegs.GPAGMUX2.bit.GPIO18 = 0;
GpioCtrlRegs.GPAGMUX2.bit.GPIO29 = 0;
GpioCtrlRegs.GPAMUX2.bit.GPIO18 = 2;
GpioCtrlRegs.GPAMUX2.bit.GPIO29 = 1;
// Select CPU 1
// Select CPU 1
GpioCtrlRegs.GPACSEL3.bit.GPIO18 = 0;
GpioCtrlRegs.GPACSEL4.bit.GPIO29 = 0;
// Async mode
// Async mode
GpioCtrlRegs.GPAQSEL2.bit.GPIO18 = 3;
GpioCtrlRegs.GPAQSEL2.bit.GPIO29 = 3;
EDIS;
EDIS;


// Interrupts
// Interrupts
DINT;
DINT;
InitPieCtrl();
InitPieCtrl();
IER = 0x0000;
IER = 0x0000;
IFR = 0x0000;
IFR = 0x0000;
InitPieVectTable();
InitPieVectTable();
EINT;
EINT;


// SCI
// SCI
scib_fifo_init();
scib_fifo_init();
scib_echoback_init();
scib_echoback_init();


for (;;) {
for (;;) {
msg = "Salut\n\0";
msg = "Salut\n\0";
scib_msg(msg);
scib_msg(msg);
}
}
}
}


void scib_echoback_init()
void scib_echoback_init()
{
{
ScibRegs.SCICCR.all = 0x0007; // 1 stop bit, No loopback
SciaRegs.SCICCR.all = 0x0007; // 1 stop bit, No loopback
// No parity,8 char bits,
// No parity,8 char bits,
// async mode, idle-line protocol
// async mode, idle-line protocol
ScibRegs.SCICTL1.all = 0x0003; // enable TX, RX, internal SCICLK,
SciaRegs.SCICTL1.all = 0x0003; // enable TX, RX, internal SCICLK,
// Disable RX ERR, SLEEP, TXWAKE
// Disable RX ERR, SLEEP, TXWAKE
ScibRegs.SCICTL2.all = 0x0003; // Enable RXBKINTENA and TXINTENA
SciaRegs.SCICTL2.all = 0x0003; // Enable RXBKINTENA and TXINTENA


//
//
// SCIB at 9600 baud
// SCIB at 9600 baud
// @LSPCLK = 50 MHz (200 MHz SYSCLK) HBAUD = 0x02 and LBAUD = 0x8B.
// @LSPCLK = 50 MHz (200 MHz SYSCLK) HBAUD = 0x02 and LBAUD = 0x8B.
// @LSPCLK = 30 MHz (120 MHz SYSCLK) HBAUD = 0x01 and LBAUD = 0x86.
// @LSPCLK = 30 MHz (120 MHz SYSCLK) HBAUD = 0x01 and LBAUD = 0x86.
//
//
ScibRegs.SCIHBAUD.all = 0x0002;
SciaRegs.SCIHBAUD.all = 0x0002;
ScibRegs.SCILBAUD.all = 0x008B;
SciaRegs.SCILBAUD.all = 0x008B;


ScibRegs.SCICTL1.all = 0x0023; // Relinquish SCI from Reset
SciaRegs.SCICTL1.all = 0x0023; // Relinquish SCI from Reset
}
}


void scib_xmit(int a)
void scib_xmit(int a)
{
{
while (ScibRegs.SCIFFTX.bit.TXFFST != 0) {}
while (SciaRegs.SCIFFTX.bit.TXFFST != 0) {}
ScibRegs.SCITXBUF.all =a;
SciaRegs.SCITXBUF.all =a;
}
}


void scib_msg(char * msg)
void scib_msg(char * msg)
{
{
int i;
int i;
i = 0;
i = 0;
while(msg[i] != '\0')
while(msg[i] != '\0')
{
{
scib_xmit(msg[i]);
scib_xmit(msg[i]);
i++;
i++;
}
}
}
}


void scib_fifo_init()
void scib_fifo_init()
{
{
ScibRegs.SCIFFTX.all = 0xE040;
SciaRegs.SCIFFTX.all = 0xE040;
ScibRegs.SCIFFRX.all = 0x2044;
SciaRegs.SCIFFRX.all = 0x2044;
ScibRegs.SCIFFCT.all = 0x0;
SciaRegs.SCIFFCT.all = 0x0;
}
}


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