#include "platform.h"
#include "command.h"
-#include <signal.h>
-#include <io.h>
-#include <iomacros.h>
#include "avr.h"
//#include "glitch.h"
+//
+//! Handles an AVR command.
+void avr_handle_fn( uint8_t const app,
+ uint8_t const verb,
+ uint32_t const len);
+
+// define the jtag app's app_t
+app_t const avr_app = {
+
+ /* app number */
+ XAVR,
+
+ /* handle fn */
+ avr_handle_fn,
+
+ /* name */
+ "AVR",
+
+ /* desc */
+ "\tThe AVR app adds support for debugging AVR based devices.\n"
+};
//! Setup the AVR pins.
void avrsetup(){
void avrconnect(){
//set I/O pins
avrsetup(); //Cut this?
-
+
SETSS;
//delay(50);
-
+
//Pulse !RST (SS) at least twice while CLK is low.
CLRCLK;
CLRSS;
//delay(5);
CLRSS;
//delay(5);
-
+
//Enable programming
avr_prgen();
}
register u16 bit;
//This function came from the SPI Wikipedia article.
//Minor alterations.
-
+
for (bit = 0; bit < 8; bit++) {
/* write MOSI on trailing edge of previous clock */
if (byte & 0x80)
else
CLRMOSI;
byte <<= 1;
-
+
delay(2);
SETCLK;
-
+
/* read MISO on trailing edge */
byte |= READMISO;
delay(2);
CLRCLK;
}
-
+
return byte;
}
}
//! Handles an AVR command.
-void avrhandle(unsigned char app,
- unsigned char verb,
- unsigned long len){
- unsigned long i;
+void avr_handle_fn( uint8_t const app,
+ uint8_t const verb,
+ uint32_t const len)
+{
+ unsigned long i, l;
unsigned int at;
-
+
/*
if(!avr_isready() && connected)
debugstr("AVR is not yet ready.");
*/
-
+
switch(verb){
case READ:
case WRITE:
//cmddata[0]=avr_peekflash(cmddataword[0]);
//txdata(app,verb,1);
at=cmddataword[0];
-
+
//Fetch large blocks for bulk fetches,
//small blocks for individual peeks.
- if(len>2){
- len=(cmddataword[1]);//always even.
+ l = len;
+ if(l>2){
+ l=(cmddataword[1]);//always even.
}else{
- len=1;
+ l=1;
}
- txhead(app,verb,len);
- for(i=0;i<len;i++){
+ txhead(app,verb,l);
+ for(i=0;i<l;i++){
serial_tx(avr_peekflash(at++));
}
break;