warning output upon connection problems.

git-svn-id: svn://svn.berlios.de/openocd/trunk@882 b42882b7-edfa-0310-969c-e2dbd0fdcd60

diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c
index 15a5900c41c2151b1c1adcf0bfb5a2bb4fe83848..05c6628b3f58faedabff46c116d4a1e51e8aefc0 100644 (file)
--- a/src/jtag/jtag.c
+++ b/src/jtag/jtag.c
@@ -1361,6 +1361,8 @@ int jtag_examine_chain()
                        /* LSB must not be 0, this indicates a device in bypass */
                        device_count++;
                        
+                       LOG_WARNING("Device was in bypass after TRST/TMS reset");
+                       
                        bit_count += 1;
                }
                else
@@ -1371,6 +1373,7 @@ int jtag_examine_chain()
                        
                        if (idcode == 0x000000FF)
                        {
+                               int unexpected=0;
                                /* End of chain (invalid manufacturer ID) 
                                 * 
                                 * The JTAG examine is the very first thing that happens
@@ -1385,9 +1388,10 @@ int jtag_examine_chain()
                                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 (idcode != 0x000000FF)
+                                       if (unexpected||(idcode != 0x000000FF))
                                        {
-                                               LOG_WARNING("Unexpected idcode after end of chain! 0x%08x", idcode);
+                                               LOG_WARNING("Unexpected idcode after end of chain! %d 0x%08x", bit_count, idcode);
+                                               unexpected = 1;
                                        }
                                }