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Submitted by Andrew O. Shadoura:

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bug #25156: add direct SPI transfer mode
* bitbang.c: Implement direct SPI transfers.
* bitbang.h: (Ditto.)
* par.c: (Ditto.)
* pgm.c: (Ditto.)
* pgm.h: (Ditto.)
* term.c: Add the "spi" and "pgm" commands.
* avrdude.1: Document the changes.
* doc/avrdude.texi: (Ditto.)


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@797 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch
2009-02-17 15:31:27 +00:00
parent c28d976be9
commit 5f149728b9
10 changed files with 114 additions and 8 deletions
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44
term.c
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@@ -88,6 +88,11 @@ static int cmd_fosc (PROGRAMMER * pgm, struct avrpart * p,
static int cmd_sck (PROGRAMMER * pgm, struct avrpart * p,
int argc, char *argv[]);
static int cmd_spi (PROGRAMMER * pgm, struct avrpart * p,
int argc, char *argv[]);
static int cmd_pgm (PROGRAMMER * pgm, struct avrpart * p,
int argc, char *argv[]);
struct command cmd[] = {
{ "dump", cmd_dump, "dump memory : %s <memtype> <addr> <N-Bytes>" },
@@ -102,6 +107,8 @@ struct command cmd[] = {
{ "varef", cmd_varef, "set <V[aref]> (STK500 only)" },
{ "fosc", cmd_fosc, "set <oscillator frequency> (STK500 only)" },
{ "sck", cmd_sck, "set <SCK period> (STK500 only)" },
{ "spi", cmd_spi, "enter direct SPI mode" },
{ "pgm", cmd_pgm, "return to programming mode" },
{ "help", cmd_help, "help" },
{ "?", cmd_help, "help" },
{ "quit", cmd_quit, "quit" }
@@ -111,7 +118,7 @@ struct command cmd[] = {
static int spi_mode = 0;
static int nexttok(char * buf, char ** tok, char ** next)
{
@@ -445,8 +452,18 @@ static int cmd_send(PROGRAMMER * pgm, struct avrpart * p,
return -1;
}
if (argc != 5) {
fprintf(stderr, "Usage: send <byte1> <byte2> <byte3> <byte4>\n");
if (spi_mode && (pgm->spi == NULL)) {
fprintf(stderr,
"The %s programmer does not support direct SPI transfers.\n",
pgm->type);
return -1;
}
if ((argc > 5) || ((argc < 5) && (!spi_mode))) {
fprintf(stderr, spi_mode?
"Usage: send <byte1> [<byte2> [<byte3> [<byte4>]]]\n":
"Usage: send <byte1> <byte2> <byte3> <byte4>\n");
return -1;
}
@@ -465,7 +482,10 @@ static int cmd_send(PROGRAMMER * pgm, struct avrpart * p,
pgm->err_led(pgm, OFF);
pgm->cmd(pgm, cmd, res);
if (spi_mode)
pgm->spi(pgm, cmd, res, argc-1);
else
pgm->cmd(pgm, cmd, res);
/*
* display results
@@ -724,6 +744,22 @@ static int cmd_help(PROGRAMMER * pgm, struct avrpart * p,
return 0;
}
static int cmd_spi(PROGRAMMER * pgm, struct avrpart * p,
int argc, char * argv[])
{
pgm->setpin(pgm, pgm->pinno[PIN_AVR_RESET], 1);
spi_mode = 1;
return 0;
}
static int cmd_pgm(PROGRAMMER * pgm, struct avrpart * p,
int argc, char * argv[])
{
pgm->setpin(pgm, pgm->pinno[PIN_AVR_RESET], 0);
spi_mode = 0;
pgm->initialize(pgm, p);
return 0;
}
static int tokenize(char * s, char *** argv)
{