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Submitted by Neil Davey:

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patch #4539: Ability to control the bit clock (usleep) delay
for ppi interface
* bitbang.c: Implement bitbang_delay() and its calibration.
* bitbang.h: Declare bitbang_delay().
* main.c: Add the ispdelay option (-i).
* pgm.h (struct programmer_t): Add the ispdelay parameter.
* par.c: Add calls to bitbang_delay() when requested.
* serbb_posix.c: (Ditto.)
* serbb_win32.c: (Ditto.)
* avrdude.1: Document the new -i option.
* doc/avrdude.texi: (Ditto.)


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@610 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch
2006-08-17 15:06:20 +00:00
parent 0608a54a5e
commit 88e2614ee2
11 changed files with 188 additions and 37 deletions
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31
par.c
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@@ -48,8 +48,6 @@ extern int verbose;
#if HAVE_PARPORT
#define SLOW_TOGGLE 0
struct ppipins_t {
int pin;
int reg;
@@ -102,9 +100,8 @@ static int par_setpin(PROGRAMMER * pgm, int pin, int value)
else
ppi_clr(pgm->fd, ppipins[pin].reg, ppipins[pin].bit);
#if SLOW_TOGGLE
usleep(1000);
#endif
if (pgm->ispdelay > 1)
bitbang_delay(pgm->ispdelay);
return 0;
}
@@ -155,24 +152,20 @@ static int par_highpulsepin(PROGRAMMER * pgm, int pin)
if (inverted) {
ppi_clr(pgm->fd, ppipins[pin].reg, ppipins[pin].bit);
#if SLOW_TOGGLE
usleep(1000);
#endif
ppi_set(pgm->fd, ppipins[pin].reg, ppipins[pin].bit);
if (pgm->ispdelay > 1)
bitbang_delay(pgm->ispdelay);
#if SLOW_TOGGLE
usleep(1000);
#endif
ppi_set(pgm->fd, ppipins[pin].reg, ppipins[pin].bit);
if (pgm->ispdelay > 1)
bitbang_delay(pgm->ispdelay);
} else {
ppi_set(pgm->fd, ppipins[pin].reg, ppipins[pin].bit);
#if SLOW_TOGGLE
usleep(1000);
#endif
ppi_clr(pgm->fd, ppipins[pin].reg, ppipins[pin].bit);
if (pgm->ispdelay > 1)
bitbang_delay(pgm->ispdelay);
#if SLOW_TOGGLE
usleep(1000);
#endif
ppi_clr(pgm->fd, ppipins[pin].reg, ppipins[pin].bit);
if (pgm->ispdelay > 1)
bitbang_delay(pgm->ispdelay);
}
return 0;