Pic32 hardware initialization – Digilent 410-216P-KIT User Manual
Page 10
chipKIT Basic I/O Shield Reference Manual
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PIC32 Hardware Initialization
The following function initializes the PIC32 hardware for talking to the display. It initializes the SPI
controller and sets the control pins to be outputs.
/* ------------------------------------------------------------ */
/*** OledHostInit
**
**
Parameters:
**
none
**
**
Return Value:
**
none
**
**
Errors:
**
none
**
**
Description:
**
Perform PIC32 device initialization to prepare for use
**
of the OLED display.
**
This example is hard coded for the chipKIT Uno32 and
**
SPI2.
*/
void
OledHostInit()
{
unsigned int
tcfg;
/* Initialize SPI port 2.
*/
SPI2CON = 0;
SPI2BRG = 15;
//8Mhz, with 80Mhz PB clock
SPI2STATbits.SPIROV = 0;
SPI2CONbits.CKP = 1;
SPI2CONbits.MSTEN = 1;
SPI2CONbits.ON = 1;
/* Make pins RF4, RF5, and RF6 be outputs.
*/
PORTSetBits(IOPORT_F, bitVddCtrl|bitVbatCtrl|bitDataCmd);
PORTSetPinsDigitalOut(prtDataCmd, bitDataCmd);
//Data/Command# select
PORTSetPinsDigitalOut(prtVddCtrl, bitVddCtrl);
//VDD power control (1=off)
PORTSetPinsDigitalOut(prtVbatCtrl, bitVbatCtrl);
//VBAT power control (1=off)
/* Make the RG9 pin be an output. On the Basic I/O Shield, this pin
** is tied to reset.
*/
PORTSetBits(prtReset, bitReset);
PORTSetPinsDigitalOut(prtReset, bitReset);
}