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Make sure shifting phase and add bypass.py. - shifting phase is started after entering SHIFT state Transition from CAP to SHIFT does not induce shifting. - shifting phase is stoped after leaving SHIFT state. Transition from SHIFT to EXIT1 also induce a bit of shifting.
author Thinker K.F. Li <thinker@branda.to>
date Wed, 25 Feb 2009 20:08:29 +0800
parents cc106f278d7d
children
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#ifndef __JTAG_H_
#define __JTAG_H_

#include <avr/io.h>

#define JTAG_PORT PORTB
#define JTAG_PIN PINB
#define JTAG_TCK PINB0
#define JTAG_TMS PINB1
#define JTAG_TDI PINB2
#define JTAG_TDO PINB3
#define JTAG_TRST PINB4

extern void jtag_init(void);
extern void jtag_trst(void);
extern void jtag_tms(unsigned char *buf, int nbits);
extern void jtag_shift(unsigned char *buf, int nbits);
extern void jtag_shift_inout(unsigned char *ibuf, unsigned char *obuf,
			     int nbits);

#endif /* __JTAG_H_ */