//! Initialized an attached AVR.
void avrconnect(){
- register int i;
- avrsetup();//set I/O pins
+ //set I/O pins
+ avrsetup();
//Pulse !RST (SS) at least twice while CLK is low.
CLRCLK;
avr_prgen();
}
-//! Read and write an SPI byte.
+//! Read and write an SPI byte with delays.
unsigned char avrtrans8(unsigned char byte){
register unsigned int bit;
//This function came from the SPI Wikipedia article.
avrtrans8(b);
if(avrtrans8(c)!=b){
debugstr("AVR sync error, b not returned as c.");
- }else{
- debugstr("Synced properly.");
+ //Reconnect here?
}
return avrtrans8(d);
}
}
//! Read AVR device code.
-u8 avr_devicecode(){
+u8 avr_sig(u8 i){
return avrexchange(0x30, //Read signature byte
0x00,
- 0x00, //&0x03 is sig adr
- 0x00 //don't care.
+ i&0x03, //sig adr
+ 0x00 //don't care.
);
}
avrconnect();
//no break here
case AVR_PEEKSIG:
- cmddata[0]=avr_devicecode();
- txdata(app,verb,1);
+ for(i=0;i<4;i++)
+ cmddata[i]=avr_sig(i);
+ txdata(app,verb,4);
break;
case PEEK:
case POKE: