Better?
--
Øyvind Harboe
Embedded software and hardware consulting services
http://consulting.zylin.com
### Eclipse Workspace Patch 1.0
#P openocd
Index: src/jtag/jtag.c
===================================================================
--- src/jtag/jtag.c (revision 1534)
+++ src/jtag/jtag.c (working copy)
@@ -1531,7 +1531,9 @@
u32 part;
u32 version;
- if (idcode == 0x000000FF)
+ /* some devices, such as AVR will output all 1's
instead of TDI
+ input value at end of chain. */
+ if ((idcode == 0x000000FF)||(idcode == 0xFFFFFFFF))
{
int unexpected=0;
/* End of chain (invalid manufacturer ID)
@@ -1548,7 +1550,7 @@
for (bit_count += 32; bit_count <
(JTAG_MAX_CHAIN_SIZE * 32) - 31;bit_count += 32)
{
idcode = buf_get_u32(idcode_buffer,
bit_count, 32);
- if (unexpected||(idcode != 0x000000FF))
+ if (unexpected||((idcode !=
0x000000FF)&&(idcode != 0xFFFFFFFF)))
{
LOG_WARNING("Unexpected idcode
after end of chain! %d 0x%08x", bit_count, idcode);
unexpected = 1;
@@ -3306,7 +3308,7 @@
tap_state_t last_state;
- // set startstate (and possibly last, if tap_bits == 0)
+ // set startstate (and possibly last, if tap_bits == 0)
last_state = next_state;
DEBUG_JTAG_IO("TAP/SM: START state: %s", tap_state_name(next_state));
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