/**
* initializes sci gpio pins (26/27)
* for piccolo control stick, the output is routed
* to xds 100 port b com port emulator
**/
void Com_SCI_Init() {
InitSciaGpio();
EALLOW;
SciaRegs.SCICCR.all = 0x0007; // 1 stop bit, No loopback
// No parity,8 char bits,
// async mode, idle-line protocol
SciaRegs.SCICTL1.all = 0x0003; // enable TX, RX, internal SCICLK,
// Disable RX ERR, SLEEP, TXWAKE
SciaRegs.SCICTL2.bit.TXINTENA = 1;
SciaRegs.SCICTL2.bit.RXBKINTENA = 1;
SciaRegs.SCIHBAUD = 0x0000;
SciaRegs.SCILBAUD = COM_SCI_BRR;
// intializes sci fifo queue
SciaRegs.SCIFFTX.all=0xE040;
SciaRegs.SCIFFRX.all=0x2044;
SciaRegs.SCIFFCT.all=0x0;
SciaRegs.SCICTL1.all = 0x0023; // Relinquish SCI from Reset
EDIS;
}
void SetupSerialPort()
{
// *** Calculate the BRR ***
//
// CPUCLK>>LOW_SPEED_CLOCK_DIVIDER
// BRR = ---------------------------------- - 1
// 8*BAUDRATE
#ifdef DSP2803x_DEVICE_H
UINT32 BRR = (15000000UL)/(115200<<3)-1; //Low speed clock = 15 MHz, baudrate = 115200 baud
#endif
#ifdef F2806x_DEVICE_H
UINT32 BRR = (20000000UL)/(115200<<3)-1; //Low speed clock = 20 MHz, baudrate = 115200 baud
#endif
InitSciaGpio();
SciaRegs.SCICTL1.all=0x0003; // Reset SCI
SciaRegs.SCIFFCT.all=0x0000;
SciaRegs.SCIFFTX.all=0xE000; // Enable transmit FIFO
SciaRegs.SCIFFRX.all=0x2000; // Enable receive FIFO
SciaRegs.SCICTL2.all=0x0000;
// Set the baud rate
SciaRegs.SCIHBAUD=(UINT16)(BRR>>8) & 0xFF;
SciaRegs.SCILBAUD=(UINT16)BRR & 0xFF;
SciaRegs.SCIPRI.all=0x0018;
SciaRegs.SCICCR.all=0x0007; // 8 bit character length, No parity, 1 stop bit
SciaRegs.SCICTL1.all=0x0023; // Enable the SCI
}
void InitSciGpio()
{
InitSciaGpio();
#if DSP28_2808 || DSP28_2806
InitScibGpio();
#endif // if DSP28_2808 || DSP28_2806
}
void InitSciGpio()
{
InitSciaGpio();
#if DSP28_SCIB
InitScibGpio();
#endif // if DSP28_SCIB
#if DSP28_SCIC
InitScicGpio();
#endif // if DSP28_SCIC
}
void InitSciGpio()
{
InitSciaGpio();
}
//---------------------------------------------------------------------------
// InitSci:
//---------------------------------------------------------------------------
// This function initializes the SCI(s) to a known state.
//
void InitSci(void)
{
InitSciaGpio();
Scia_init();
}
