void glcd_spi_write(uint8_t c)
{
GLCD_SELECT();
SpiChnPutC(SPI_CHANNEL2, c);
// Wait until the byte is sent before deselecting
while(SpiChnIsBusy(SPI_CHANNEL2));
GLCD_DESELECT();
}
void glcd_reset(void)
{
GLCD_SELECT();
GLCD_RESET_LOW();
delay_ms(GLCD_RESET_TIME);
GLCD_RESET_HIGH();
// Wait until the byte is sent before deselecting
while(SpiChnIsBusy(SPI_CHANNEL2));
GLCD_DESELECT();
}
/**************************************************************
* Function name : WriteDrive
* Purpose : Write a cmd to the drive.
* Arguments : None.
* Returns : None.
*************************************************************/
void WriteDrive(INT32 DRV, INT32 msg)
{
int i=0;
if(DRV == DRVA)
{
while(SpiChnIsBusy(SPI4+1));
DRVA_SC = 1;
Spi.SendCharacter(SPI4, msg);
for (i = 0; i < 1000; i++); // Small delay necessary for the drive
while(SpiChnIsBusy(SPI4+1));
DRVA_SC = 0;
}
else if(DRV == DRVB)
{
while(SpiChnIsBusy(SPI4+1));
DRVB_SC = 1;
Spi.SendCharacter(SPI4, msg);
for (i = 0; i < 1000; i++); // Small delay necessary for the drive
while(SpiChnIsBusy(SPI4+1));
DRVB_SC = 0;
}
else if(DRV == DRVAB)
{
while(SpiChnIsBusy(SPI4+1));
DRVB_SC = 1;
DRVA_SC = 1;
Spi.SendCharacter(SPI4, msg);
for (i = 0; i < 1000; i++); // Small delay necessary for the drive
while(SpiChnIsBusy(SPI4+1));
DRVB_SC = 0;
DRVA_SC = 0;
}
}
/**************************************************************
* Function name : ReadDrive
* Purpose : Read a msg from the drive. Not used
* Arguments : None.
* Returns : None.
*************************************************************/
INT32 ReadDrive(INT32 DRV, INT32 msg)
{
int i=0;
INT32 data;
if(DRV == DRVA)
{
while(SpiChnIsBusy(SPI4+1));
DRVA_SC = 1;
// Spi.SendCharacter(SPI4, msg | (1 << 15));
Spi.SendCharacter(SPI4, msg);
while(SpiChnIsBusy(SPI4+1));
data = Spi.GetCharacter(SPI4);
while(SpiChnIsBusy(SPI4+1));
data = Spi.GetCharacter(SPI4);
DRVA_SC = 0;
}
else if(DRV == DRVB){
while(SpiChnIsBusy(SPI4+1));
DRVB_SC = 1;
// Spi.SendCharacter(SPI4, msg | (1 << 15));
Spi.SendCharacter(SPI4, msg);
while(SpiChnIsBusy(SPI4+1));
data = Spi.GetCharacter(SPI4);
while(SpiChnIsBusy(SPI4+1));
data = Spi.GetCharacter(SPI4);
DRVB_SC = 0;
}
else if(DRV == DRVAB){
while(SpiChnIsBusy(SPI4+1));
DRVB_SC = 1;
DRVA_SC = 1;
// Spi.SendCharacter(SPI4, msg | (1 << 15));
Spi.SendCharacter(SPI4, msg);
while(SpiChnIsBusy(SPI4+1));
data = Spi.GetCharacter(SPI4);
DRVB_SC = 0;
DRVA_SC = 0;
}
return data;
}
