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* jtag3.c: Make jtag3_command() public 

* jtag3.h: (Dito.)
* jtag3_private.h: Add two new commands
* stk500v2.c: Implement the "MonCon disable" hack that
allows temporarily falling back to ISP when trying to
talk to a part that has debugWIRE enabled



git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1123 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch 2012-12-03 21:03:06 +00:00
parent e61690b142
commit 1daf387df5
5 changed files with 61 additions and 5 deletions
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9
ChangeLog
View File

@ -1,3 +1,12 @@
2012-12-03 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
* jtag3.c: Make jtag3_command() public
* jtag3.h: (Dito.)
* jtag3_private.h: Add two new commands
* stk500v2.c: Implement the "MonCon disable" hack that
allows temporarily falling back to ISP when trying to
talk to a part that has debugWIRE enabled
2012-12-03 Rene Liebscher <R.Liebscher@gmx.de>
* pickit2.c: reordered #includes for non-usb configuration

7
jtag3.c
View File

@ -98,9 +98,6 @@ struct pdata
static int jtag3_open(PROGRAMMER * pgm, char * port);
static int jtag3_command(PROGRAMMER *pgm, unsigned char *cmd, unsigned int cmdlen,
unsigned char **resp, const char *descr);
static int jtag3_initialize(PROGRAMMER * pgm, AVRPART * p);
static int jtag3_chip_erase(PROGRAMMER * pgm, AVRPART * p);
static int jtag3_read_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem,
@ -530,8 +527,8 @@ int jtag3_recv(PROGRAMMER * pgm, unsigned char **msg) {
}
}
static int jtag3_command(PROGRAMMER *pgm, unsigned char *cmd, unsigned int cmdlen,
unsigned char **resp, const char *descr)
int jtag3_command(PROGRAMMER *pgm, unsigned char *cmd, unsigned int cmdlen,
unsigned char **resp, const char *descr)
{
int status;
unsigned char c;

2
jtag3.h
View File

@ -35,6 +35,8 @@ int jtag3_getparm(PROGRAMMER * pgm, unsigned char scope,
int jtag3_setparm(PROGRAMMER * pgm, unsigned char scope,
unsigned char section, unsigned char parm,
unsigned char *value, unsigned char length);
int jtag3_command(PROGRAMMER *pgm, unsigned char *cmd, unsigned int cmdlen,
unsigned char **resp, const char *descr);
extern const char jtag3_desc[];
extern const char jtag3_dw_desc[];
extern const char jtag3_pdi_desc[];

2
jtag3_private.h
View File

@ -109,6 +109,8 @@
#define CMD3_GET_PARAMETER 0x02
#define CMD3_SIGN_ON 0x10
#define CMD3_SIGN_OFF 0x11 /* takes one parameter? */
#define CMD3_START_DW_DEBUG 0x13
#define CMD3_MONCON_DISABLE 0x17
/* AVR ISP scope: no commands of its own */

46
stk500v2.c
View File

@ -1150,6 +1150,52 @@ static int stk500v2_program_enable(PROGRAMMER * pgm, AVRPART * p)
}
break;
case PGMTYPE_JTAGICE3:
if (buf[1] == STATUS_CMD_FAILED &&
(p->flags & AVRPART_HAS_DW) != 0) {
void *mycookie;
unsigned char cmd[4], *resp;
/* Try debugWIRE, and MONCON_DISABLE */
if (verbose >= 2)
fprintf(stderr,
"%s: No response in ISP mode, trying debugWIRE\n",
progname);
mycookie = pgm->cookie;
pgm->cookie = PDATA(pgm)->chained_pdata;
cmd[0] = PARM3_CONN_DW;
if (jtag3_setparm(pgm, SCOPE_AVR, 1, PARM3_CONNECTION, cmd, 1) < 0) {
pgm->cookie = mycookie;
break;
}
cmd[0] = SCOPE_AVR;
cmd[1] = CMD3_SIGN_ON;
cmd[2] = cmd[3] = 0;
if (jtag3_command(pgm, cmd, 4, &resp, "AVR sign-on") >= 0) {
free(resp);
cmd[1] = CMD3_START_DW_DEBUG;
if (jtag3_command(pgm, cmd, 4, &resp, "start DW debug") >= 0) {
free(resp);
cmd[1] = CMD3_MONCON_DISABLE;
if (jtag3_command(pgm, cmd, 3, &resp, "MonCon disable") >= 0)
free(resp);
fprintf(stderr,
"%s: Target prepared for ISP, signed off.\n"
"%s: Please restart %s without power-cycling the target.\n",
progname, progname, progname);
}
}
pgm->cookie = mycookie;
}
break;
default:
/* cannot report anything for other pgmtypes */
break;