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Try to use JTAG mode 2 with UIF devices.

This commit is contained in:
Daniel Beer 2010-06-15 12:56:20 +12:00
parent c811a44032
commit c1bb903b99
2 changed files with 34 additions and 10 deletions
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42
fet.c
View File

@ -771,6 +771,38 @@ static int fet_breakpoint(device_t dev_base, int enabled, uint16_t addr)
return 0;
}
static int do_configure(struct fet_device *dev, int proto_flags)
{
if (proto_flags & FET_PROTO_SPYBIWIRE) {
if (!xfer(dev, C_CONFIGURE, NULL, 0,
2, FET_CONFIG_PROTOCOL, 1)) {
printf("Configured for Spy-bi-wire\n");
return 0;
}
fprintf(stderr, "fet: Spy-bi-wire configuration failed\n");
return -1;
}
if (!xfer(dev, C_CONFIGURE, NULL, 0,
2, FET_CONFIG_PROTOCOL, 2)) {
printf("Configured for JTAG (2)\n");
return 0;
}
fprintf(stderr, "fet: warning: JTAG configuration failed -- "
"retrying\n");
if (!xfer(dev, C_CONFIGURE, NULL, 0,
2, FET_CONFIG_PROTOCOL, 0)) {
printf("Configured for JTAG (0)\n");
return 0;
}
fprintf(stderr, "fet: JTAG configuration failed\n");
return -1;
}
device_t fet_open(transport_t transport, int proto_flags, int vcc_mv,
const char *force_id)
{
@ -809,16 +841,8 @@ device_t fet_open(transport_t transport, int proto_flags, int vcc_mv,
goto fail;
}
/* configure: Spy-Bi-Wire or JTAG */
if (xfer(dev, C_CONFIGURE, NULL, 0,
2, FET_CONFIG_PROTOCOL,
(proto_flags & FET_PROTO_SPYBIWIRE) ? 1 : 0) < 0) {
fprintf(stderr, "fet: configure failed\n");
if (do_configure(dev, proto_flags) < 0)
goto fail;
}
printf("Configured for %s\n",
(proto_flags & FET_PROTO_SPYBIWIRE) ? "Spy-Bi-Wire" : "JTAG");
/* set VCC */
if (xfer(dev, C_VCC, NULL, 0, 1, vcc_mv) < 0) {

2
main.c
View File

@ -130,7 +130,7 @@ static void usage(const char *progname)
" -u device\n"
" Open the given tty device (MSP430 UIF compatible devices).\n"
" -j\n"
" Use JTAG, rather than spy-bi-wire (UIF devices only).\n"
" Use JTAG, rather than Spy-bi-wire (UIF devices only).\n"
" -v voltage\n"
" Set the supply voltage, in millivolts.\n"
" -B device\n"