int WriteCommand(int cmdd)
{send_command(cmdd);
	}


//******************************************************************************
// SENDET EIN KOMMANDOBYTE Hardware SPI

int send_command(int cmd)
{
	PORTGbits.RG14 = 0;  //CS,FALSE
	PORTGbits.RG13 = 0;  //D/C, FALSE


	WriteSPI2(cmd);

	int i=100;
	while(i>0)
		i--;

	PORTGbits.RG14 = 1;  //CS,TRUE
	PORTGbits.RG13 = 1;  //D/C, TRUE
   
   return 0; //keine Rückgabe
}

int WriteCommand(int cmdd)
{send_command(cmdd);
	}

//******************************************************************************
// SENDET EIN DATENBYTE Hardware SPI

void send_data(int data)
{
	PORTGbits.RG14 = 0;  //CS,FALSE
	PORTGbits.RG13 = 0;  //D/C, FALSE


 
	WriteSPI2(data);
   

	PORTGbits.RG14 = 0;  //CS,FALSE
	PORTGbits.RG13 = 0;  //D/C, FALSE
 
}






//******************************************************************************
//******************************************************************************
// INITSALISIERT DAS OLED DISPALY
// Hier werden einige Daten wie z.B. Displaygröße und Kontrast eingestellt
// Dies ist notwendig damit das Display richtig arbeitet

void init_oled(void)
{

// Column Address
WriteCommand(0x15); /* Set Column Address */
WriteCommand(0x00); /* Start = 0 */
WriteCommand(0x3F); /* End = 127 */
// Row Address
WriteCommand(0x75); /* Set Row Address */
WriteCommand(0x00); /* Start = 0 */
WriteCommand(0x3F); /* End = 63 */
// Contrast Control
WriteCommand(0x81); /* Set Contrast Control */
WriteCommand(0x33); /* 0 ~ 127 */
// Current Range
WriteCommand(0x86); /* Set Current Range
84h:Quarter, 85h:Half,
86h:Full*/
// Re-map
WriteCommand(0xA0); /* Set Re-map */
WriteCommand(0x52); /* [0]:MX, [1]:Nibble, [2]:H/V
address [4]:MY, [6]:Com Split
Odd/Even "1000010"*/
// Display Start Line
WriteCommand(0xA1); /* Set Display Start Line */
WriteCommand(0x00); /* Top */
// Display Offset
WriteCommand(0xA2); /* Set Display Offset */
WriteCommand(0x40); /* No offset */
// Display Mode
WriteCommand(0xA4); /* Set DisplaMode,A4:Normal,
A5:All ON, A6: All OFF,
A7:Inverse */
// Multiplex Ratio
WriteCommand(0xA8); /* Set Multiplex Ratio */
WriteCommand(0x3F); /* [6:0]16~128, 64 rows=3Fh*/
// Phase Length
WriteCommand(0xB1); /* Set Phase Length */
WriteCommand(0x22); /* [3:0]:Phase 1 period of 1~16
clocks */
/* [7:4]:Phase 2 period of 1~16
clocks /* POR = 0111 0100 */
// Row Period
WriteCommand(0xB2); /* Set Row Period */
WriteCommand(0x46); /* [7:0]:18~255,
K=P1+P2+GS15
(POR:4+7+29)*/
// Display Clock Divide
WriteCommand(0xB3); /* Set Clock Divide */
WriteCommand(0x41); /* [3:0]:1~16, [7:4]:0~16 */
/* POR = 0000 0001 */
// VSL
WriteCommand(0xBF); /* Set VSL */
WriteCommand(0x0D); /* [3:0]:VSL */
// CCOMH
WriteCommand(0xBE); /* Set VCOMH */
WriteCommand(0x00); /* [7:0]:VCOMH */
// VP
WriteCommand(0xBC); /* Set VP */
WriteCommand(0x0B); /* [7:0]:VP */
// Gamma
WriteCommand(0xB8); /* Set Gamma with next 8 bytes*/
WriteCommand(0x01); /* L1[2:1] */
WriteCommand(0x11); /* L3[6:4], L2[2:0] 0001 0001*/
WriteCommand(0x22); /* L5[6:4], L4[2:0] 0010 0010*/
WriteCommand(0x32); /* L7[6:4], L6[2:0] 0011 1011*/
WriteCommand(0x43); /* L9[6:4], L8[2:0] 0100 0100*/
WriteCommand(0x54); /* LB[6:4], LA[2:0] 0101 0101*/
WriteCommand(0x65); /* LD[6:4], LC[2:0] 0110 0110*/
WriteCommand(0x76); /* LF[6:4], LE[2:0] 1000 0111*/
// Set DC-DC
WriteCommand(0xAD); /* Set DC-DC */
WriteCommand(0x02); /* 03=ON, 02=Off */
// Display ON/OFF
WriteCommand(0xAF); /* AF=ON, AE=Sleep Mode */
WriteCommand(0xA5);

}