public class ChipImpl extends FtdiChip implements Chip {
+ private int dmask =
+ (1<<0) |
+ (1<<1) |
+ (1<<2) |
+ //(1<<3) |
+ //(1<<4) |
+ (1<<5) |
+ (1<<6) |
+ (1<<7);
+
public ChipImpl() {
super();
doReset();
}
- public boolean buffered = true;
- public void buffered() { buffered = true; }
- public void buffered(boolean buf) {
- if (!buf) flush();
- buffered = buf;
- }
-
public void doReset() {
+
+ dmask =
+ (1<<0) |
+ (1<<1) |
+ (1<<2) |
+ //(1<<3) |
+ //(1<<4) |
+ (1<<5) |
+ (1<<6) |
+ (1<<7);
+ avrrst(false);
+
flush();
+ //purge();
dbangmode(dmask);
flush();
data(false);
con(false);
flush();
+ //try { Thread.sleep(500); } catch (Exception e) { }
reset(false);
flush();
- try { Thread.sleep(200); } catch (Exception e) { }
+ try { Thread.sleep(500); } catch (Exception e) { }
+ if (initErr()) throw new RuntimeException("INIT was still high after pulling RESET low");
+ //System.out.println("0 con() = " + con());
reset(true);
flush();
- try { Thread.sleep(200); } catch (Exception e) { }
-
- dmask &= ~(1<<7);
- dbangmode(dmask);
- flush();
+ try { Thread.sleep(500); } catch (Exception e) { }
+ if (!initErr()) throw new RuntimeException("INIT was still low after releasing RESET");
+ //System.out.println("1 con() = " + con());
+ con(false);
}
int porte = 0;
}
}
- protected int dmask =
- //(1<<0) |
- (1<<1) |
- (1<<2) |
- //(1<<3) |
- //(1<<4) |
- (1<<5) |
- (1<<6) |
- (1<<7);
-
+ // tricky: RESET has a weak pull-up, and is wired to a CBUS line. So,
+ // we can pull it down (assert reset) from uart-mode, or we can
+ // let it float upward from either mode.
public void reset(boolean on) {
bits = on ? (1<<1) : 0;
+ mask = (1<<1);
uart();
+ flush();
+ if (on) {
+ //mask = 0;
+ //uart();
+ //flush();
+ dbangmode(dmask);
+ flush();
+ }
}
+
public void avrrst(boolean on) { dbang(7, on); }
public void clk(boolean on) { dbang(6, on); }
public void data(boolean on) { dbang(5, on); }
public boolean initErr() { flush(); return (readPins() & (1<<4))!=0; }
+
public boolean con() {
flush();
- dmask &= ~(1<<0);
+ //dmask &= ~(1<<0);
dbangmode(dmask);
return (readPins() & (1<<0)) != 0;
}
public void con(boolean on) {
flush();
dmask |= (1<<0);
- dbangmode(dmask);
dbang(0, on);
+ dbangmode(dmask);
}
}