#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.
P6OUT|=0x40;
glitchsetupdac();
+
+ WDTCTL = WDTPW + WDTHOLD; // Stop WDT
+ TACTL = TASSEL1 + TACLR; // SMCLK, clear TAR
+ CCTL0 = CCIE; // CCR0 interrupt enabled
+ CCR0 = glitchcount;
+ TACTL |= MC1; // Start Timer_A in continuous mode
+ _EINT(); // Enable interrupts
#endif
}
glitchvoltages(glitchL,glitchH);
}
+// Timer A0 interrupt service routine
+interrupt(TIMERA0_VECTOR) Timer_A (void)
+{
+#ifdef DAC12IR
+ //debugstr("Glitching.");
+ DAC12_0DAT = 0;//glitchL;
+ asm("nop");
+ asm("nop");
+ asm("nop");
+ asm("nop");
+ asm("nop");
+
+ DAC12_0DAT = glitchH;
+ //DAC12_0DAT = glitchL;
+ /*
+ 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;
+ }
+ */
+#endif
+}
+
+
+
u16 glitchH=0xfff, glitchL=0xfff,
- glitchstate, glitchcount;
+ glitchstate=2, glitchcount=0;
//! Glitch an application.
void glitchapp(u8 app){
debugstr("That app is not yet supported.");
}
+
+
//! Set glitching voltages.
void glitchvoltages(u16 low, u16 high){
int i;
glitchH=high;
glitchL=low;
+ //debugstr("Set glitching voltages.");
#ifdef DAC12IR
ADC12CTL0 = REF2_5V + REFON; // Internal 2.5V ref on
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:
case STOP:
case GLITCHAPP:
- case GLITCHVERB:
default:
debugstr("Unknown glitching verb.");
txdata(app,NOK,0);