X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=firmware%2Fapps%2Fglitch%2Fglitch.c;h=6f1ea4f9922d81e6896d94465f712dbf1a0bf322;hp=59896c7d3d812c943067d9a20f098eb7fd006786;hb=36f406d74ab1a30189b0ab0c75d75dc368de7c4f;hpb=b197a5b786af9a49508435b9da27459b8f85ba18 diff --git a/firmware/apps/glitch/glitch.c b/firmware/apps/glitch/glitch.c index 59896c7..6f1ea4f 100644 --- a/firmware/apps/glitch/glitch.c +++ b/firmware/apps/glitch/glitch.c @@ -23,8 +23,8 @@ void glitchprime(){ TACTL|=TACLR; //Clear TimerA Config TACTL|= TASSEL_SMCLK | //SMCLK source, - MC_1; //Count up to CCR0 - //TAIE; //Enable Interrupt + MC_1 | //Count up to CCR0 + TAIE; //Enable Interrupt CCTL0 = CCIE; // CCR0 interrupt enabled CCR0 = glitchcount; @@ -39,10 +39,10 @@ void glitchsetup(){ //Set GSEL high to disable glitching. P5DIR|=0x80; - P6DIR|=0x40; + P6DIR|=BIT6+BIT5; P5OUT|=0x80; - P6OUT|=0x40; + P6OUT|=BIT6+BIT5; glitchsetupdac(); @@ -65,29 +65,15 @@ interrupt(TIMERA0_VECTOR) Timer_A (void) { #ifdef DAC12IR //debugstr("Glitching."); - DAC12_0DAT = 0;//glitchL; + DAC12_0DAT = 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 + TACTL |= MC0; // Stop Timer_A; } @@ -115,9 +101,10 @@ void glitchvoltages(u16 low, u16 high){ // 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. @@ -125,7 +112,6 @@ void glitchrate(u16 rate){ glitchcount=rate; } - //! Handles a monitor command. void glitchhandle(unsigned char app, unsigned char verb, @@ -145,7 +131,34 @@ void glitchhandle(unsigned char app, 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");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: default: