Hello everyone,
I have to replay an XSVF file using openocd which uses the XSDRB, XSDRC
and XSDRE commands. I'm definitely not a JTAG expert, but I've hacked
together a patch to support these three commands. It seems to work on my
Spartan3A device, though I haven't done a lot of testing yet.
I've attached a diff against commit
20d1ef70e8417da7efc8a032992ee7672a19e296.
Could somebody with more JTAG/XSVF experience please have a look at the
patch and check whether this makes sense? I'd be happy to have this
included into the master tree later.
Many thanks,
Yours, Florian
--
0666 - Filemode of the Beast
diff --git a/src/xsvf/xsvf.c b/src/xsvf/xsvf.c
index 539fbdc..dcb089d 100644
--- a/src/xsvf/xsvf.c
+++ b/src/xsvf/xsvf.c
@@ -269,7 +269,7 @@ COMMAND_HANDLER(handle_xsvf_command)
*/
if (collecting_path) {
tap_state_t mystate;
- uint8_t uc;
+ uint8_t uc = opcode;
switch (opcode) {
case XCOMMENT:
@@ -415,13 +415,23 @@ COMMAND_HANDLER(handle_xsvf_command)
break;
case XSDR: /* these two are identical except for the dr_in_buf */
+ case XSDRB:
+ case XSDRC:
+ case XSDRE:
case XSDRTDO:
{
int limit = xrepeat;
int matched = 0;
int attempt;
- const char* op_name = (opcode == XSDR ? "XSDR" : "XSDRTDO");
+ const char* op_name = "";
+ switch (opcode) {
+ case XSDR: op_name = "XSDR"; break;
+ case XSDRB: op_name = "XSDRB"; break;
+ case XSDRC: op_name = "XSDRC"; break;
+ case XSDRE: op_name = "XSDRE"; break;
+ case XSDRTDO: op_name = "XSDRTDO"; break;
+ }
if (xsvf_read_buffer(xsdrsize, xsvf_fd, dr_out_buf) != ERROR_OK)
{
@@ -429,6 +439,14 @@ COMMAND_HANDLER(handle_xsvf_command)
break;
}
+ if ((opcode == XSDRB) || (opcode == XSDRC)) break;
+
+ if (opcode == XSDRE) {
+ if (xendir != TAP_DRPAUSE)
+ result = svf_add_statemove(xenddr);
+ break;
+ }
+
if (opcode == XSDRTDO)
{
if (xsvf_read_buffer(xsdrsize, xsvf_fd, dr_in_buf) != ERROR_OK)
@@ -532,21 +550,6 @@ COMMAND_HANDLER(handle_xsvf_command)
unsupported = 1;
break;
- case XSDRB:
- LOG_ERROR("unsupported XSDRB\n");
- unsupported = 1;
- break;
-
- case XSDRC:
- LOG_ERROR("unsupported XSDRC\n");
- unsupported = 1;
- break;
-
- case XSDRE:
- LOG_ERROR("unsupported XSDRE\n");
- unsupported = 1;
- break;
-
case XSDRTDOB:
LOG_ERROR("unsupported XSDRTDOB\n");
unsupported = 1;
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