/*********************************************************************
* Function: WORD GetPixel(SHORT x, SHORT y)
*
* PreCondition: none
*
* Input: x,y - pixel coordinates
*
* Output: pixel color
*
* Side Effects: none
*
* Overview: returns pixel color at x,y position
*
* Note: none
*
********************************************************************/
WORD GetPixel(SHORT x, SHORT y)
{
DWORD address;
WORD value;
address = (long)(GetMaxX() + 1) * y + x;
SetAddress(address);
CS_LAT_BIT = 0; // enable SSD1906
#ifdef __PIC32MX
A17_LAT_BIT = 0; // set address[17]
if(((DWORD_VAL) _address).w[1] & 0x0001)
A17_LAT_BIT = 1;
PMADDR = ((DWORD_VAL) _address).w[0]; // set address[16:1]
A0_LAT_BIT = 1; // set address[0]
((WORD_VAL) value).v[0] = PMDIN; // start transmission, read dummy value
PMPWaitBusy(); // wait for the transmission end
A0_LAT_BIT = 0; // set address[0]
((WORD_VAL) value).v[0] = PMDIN; // start transmission, read low byte
#else
value = PMDIN1; // start transmission, read dummy value
#endif
PMPWaitBusy(); // wait for the transmission end
CS_LAT_BIT = 1; // disable SSD1906
PMCONbits.PMPEN = 0; // suspend PMP
#ifdef __PIC32MX
((WORD_VAL) value).v[0] = PMDIN; // read high byte
#else
value = PMDIN1; // read value
#endif
PMCONbits.PMPEN = 1; // resume PMP
return (value);
}
inline WORD DeviceRead()
{
WORD value;
value = PMDIN1;
PMPWaitBusy();
PMCONbits.PMPEN = 0; // disable PMP
value = PMDIN1;
PMPWaitBusy();
PMCONbits.PMPEN = 1; // enable PMP
return value;
}
lldHx8347Read()
{
WORD value;
lldHx8347SetData();
value = PMDIN1;
PMPWaitBusy();
//PMCONbits.PMPEN = 0; // disable PMP
value = PMDIN1;
PMPWaitBusy();
//PMCONbits.PMPEN = 1; // enable PMP
return value;
}
/*********************************************************************
* Function: void WriteData(WORD value)
*
* PreCondition: none
*
* Input: value - value to be written
*
* Output: none
*
* Side Effects: none
*
* Overview: writes 16-bit word into video buffer at current address.
* The address pointer is incremented after the operation.
*
* Note: none
*
********************************************************************/
void WriteData(WORD value)
{
RS_LAT_BIT = 1; // set RS line to low for register space access
A17_LAT_BIT = 0; // set address[17]
if(((DWORD_VAL) _address).w[1] & 0x0001)
A17_LAT_BIT = 1;
PMADDR = ((DWORD_VAL) _address).w[0]; // set address[16:1]
A0_LAT_BIT = 1; // set address[0]
PMDIN1 = ((WORD_VAL) value).v[0]; // write low byte
_address++;
PMPWaitBusy(); // wait for the transmission end
A0_LAT_BIT = 0; // set address[0]
PMDIN1 = ((WORD_VAL) value).v[1]; // write high byte
PMPWaitBusy(); // wait for the transmission end
}
/*********************************************************************
* Function: BYTE GetReg(WORD index)
*
* PreCondition: none
*
* Input: index - register number
*
* Output: none
*
* Side Effects: none
*
* Overview: returns graphics controller register value (byte access)
*
* Note: none
*
********************************************************************/
BYTE GetReg(WORD index)
{
BYTE value;
#ifndef __PIC32MX
PMMODEbits.MODE16 = 0; // turn off 16 bit data mode
PMCONbits.PTBEEN = 0; // disable BE line for 16-bit access
#endif
RS_LAT_BIT = 0; // set RS line to low for register space access
CS_LAT_BIT = 0; // enable SSD1906
A17_LAT_BIT = 0; // set address[17]
PMADDR = index >> 1; // set address[16:1]
A0_LAT_BIT = index & 0x0001; // set address[0]
value = PMDIN1; // start transmission, read dummy value
PMPWaitBusy(); // wait for the transmission end
CS_LAT_BIT = 1; // disable SSD1906
PMCONbits.PMPEN = 0; // suspend PMP
value = PMDIN1; // read value
PMCONbits.PMPEN = 1; // resume PMP
#ifndef __PIC32MX
PMCONbits.PTBEEN = 1; // enable BE line for 16-bit access
PMMODEbits.MODE16 = 1; // restore 16 bit data mode
#endif
return (value);
}
/*********************************************************************
* Function: void SetReg(WORD index, BYTE value)
*
* PreCondition: none
*
* Input: index - register number
* value - value to be set
*
* Output: none
*
* Side Effects: none
*
* Overview: sets graphics controller register (byte access)
*
* Note: none
*
********************************************************************/
void SetReg(WORD index, BYTE value){
#ifndef __PIC32MX
PMMODEbits.MODE16 = 0; // turn off 16 bit data mode
PMCONbits.PTBEEN = 0; // disable BE line for 16-bit access
#endif
RS_LAT_BIT = 0; // set RS line to low for register space access
CS_LAT_BIT = 0; // enable SSD1906
A17_LAT_BIT = 0; // set address[17]
PMADDR = index>>1; // set address[16:1]
A0_LAT_BIT = index&0x0001; // set address[0]
PMDIN1 = value; // write value
PMPWaitBusy(); // wait for the transmission end
CS_LAT_BIT = 1; // disable SSD1906
#ifndef __PIC32MX
PMCONbits.PTBEEN = 1; // enable BE line for 16-bit access
PMMODEbits.MODE16 = 1; // restore 16 bit data mode
#endif
}
void WriteData(unsigned int _data)
{
DisplayEnable();
DisplaySetData();
PMDIN = _data;
PMPWaitBusy();
DisplayDisable();
}
void WriteCommand(int cmd)
{
DisplayEnable();
DisplaySetCommand();
PMDIN = cmd;
PMPWaitBusy();
DisplayDisable();
}
/*
#ifdef USE_16BIT_PMP
inline WORD DeviceRead()
{
WORD value;
value = pmp_data;
PMPWaitBusy();
return PMDIN1;
}
#else
inline BYTE DeviceRead(){
BYTE value;
value = pmp_data;
PMPWaitBusy();
return PMDIN1;
}
#endif
*/
BYTE DeviceRead(){
BYTE value;
value = PMDIN1;
PMPWaitBusy();
PMCONbits.PMPEN = 0; // disable PMP
value = PMDIN1;
PMCONbits.PMPEN = 1; // enable PMP
return value;
}
void DeviceWrite(BYTE data)
{
PMDIN1=data;
PMPWaitBusy();
}
lldHx8347Write(UINT16 pData)
{
PMDIN1 = pData;
PMPWaitBusy();
}
void Write_Data(unsigned int _data) {
TFT_RS = 1;
PMDIN = _data;
PMPWaitBusy();
}
void Write_Command( unsigned short cmd ) {
TFT_RS = 1;
PMDIN = cmd;
PMPWaitBusy();
}
void Set_Index(unsigned short index) {
TFT_RS = 0;
PMDIN = index;
PMPWaitBusy();
}
lldFpgaGpuWrite(UINT16 pData)
{
PMDIN1 = pData;
PMPWaitBusy();
}
inline BYTE SingleDeviceRead(){
BYTE value;
value = PMDIN1;
PMPWaitBusy();
return value;
}
inline void DeviceWrite(WORD data)
{
PMDIN1 = data;
PMPWaitBusy();
}
