#include "command.h"
#include "glitch.h"
-//! Disable glitch state at init.
+
+//! Call this before the function to be glitched.
+void glitchprime(){
+#ifdef DAC12IR
+ //Set to high voltage.
+ DAC12_0DAT = glitchH;
+
+ //Reconfigure TACTL.
+ TACTL=0; //Clear dividers.
+ TACTL|=TACLR; //Clear TimerA Config
+ TACTL|=
+ TASSEL_SMCLK | //SMCLK source,
+ MC_1 | //Count up to CCR0
+ TAIE; //Enable Interrupt
+ CCTL0 = CCIE; // CCR0 interrupt enabled
+ CCR0 = glitchcount;
+
+ //Enable general interrupts, just in case.
+ _EINT();
+#endif
+}
+
+//! Setup glitching.
void glitchsetup(){
#ifdef DAC12IR
//Set GSEL high to disable glitching.
P5DIR|=0x80;
- P6DIR|=0x40;
+ P6DIR|=BIT6+BIT5;
P5OUT|=0x80;
- P6OUT|=0x40;
+ P6OUT|=BIT6+BIT5;
glitchsetupdac();
interrupt(TIMERA0_VECTOR) Timer_A (void)
{
#ifdef DAC12IR
- switch(glitchstate){
- case 0:
- P1OUT|=1;
- glitchstate=1;
- DAC12_0DAT = glitchH;
- break;
- case 1:
- P1OUT|=1;
- glitchstate=0;
- DAC12_0DAT = glitchL;
- break;
- default:
- P1OUT&=~1;
- //Do nothing.
- break;
- }
- CCR0 += glitchcount; // Add Offset to CCR0
+ //debugstr("Glitching.");
+ DAC12_0DAT = glitchL;
+ asm("nop");
+ asm("nop");
+ asm("nop");
+ asm("nop");
+ asm("nop");
+ DAC12_0DAT = glitchH;
#endif
+ TACTL |= MC0; // Stop Timer_A;
}
glitchH=high;
glitchL=low;
+ //debugstr("Set glitching voltages.");
#ifdef DAC12IR
ADC12CTL0 = REF2_5V + REFON; // Internal 2.5V ref on
// Delay here for reference to settle.
for(i=0;i!=0xFFFF;i++) asm("nop");
DAC12_0CTL = DAC12IR + DAC12AMP_5 + DAC12ENC; // Int ref gain 1
+ DAC12_1CTL = DAC12IR + DAC12AMP_5 + DAC12ENC; // Int ref gain 1
// 1.0V 0x0666, 2.5V 0x0FFF
DAC12_0DAT = high;
- //DAC12_0DAT = 0x0880;
+ DAC12_1DAT = low;
#endif
}
//! Set glitching rate.
glitchcount=rate;
}
-
//! Handles a monitor command.
void glitchhandle(unsigned char app,
unsigned char verb,
glitchrate(cmddataword[0]);
txdata(app,verb,0);
break;
+ case GLITCHVERB:
+ //FIXME parameters don't work yet.
+ glitchprime();
+ handle(cmddata[0],cmddata[1],0);
+ break;
+ case GLITCHTIME:
+ _DINT();//disable interrupts
+ TACTL=0; //clear dividers
+ TACTL|=TACLR; //clear config
+ TACTL|=TASSEL_SMCLK| //smclk source
+ MC_2; //continuout mode.
+
+ //perform the function
+ silent++;//Don't want the function to return anything.
+ handle(cmddata[0],cmddata[1],0);
+ silent--;
+ cmddataword[0]=TAR; //Return counter.
+ txdata(app,verb,2);
+ break;
case START:
+ glitchvoltages(0xFFF,0);//Inverted VCC and GND.
+ P5OUT|=BIT7;//Normal
+ P5DIR|=BIT7;
+ while(1){
+ P5OUT&=~BIT7;//Glitch
+ //asm("nop");//asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
+ asm("nop");
+ P5OUT|=BIT7;//Normal
+ asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
+ asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");asm("nop");
+ }
+ txdata(app,verb,0);
+ break;
case STOP:
case GLITCHAPP:
- case GLITCHVERB:
default:
debugstr("Unknown glitching verb.");
txdata(app,NOK,0);