Content originally posted in LPCWare by wmeitzler on Thu Feb 25 15:55:12 MST 2016 I've lost communication with my '822-based project today, and can't regain debug access. I've had debug access on the board in the past, and the problem persists across several samples of the board. Debug logs are as follows: Quote: LPCXpresso Debug Driver v7.9 (Jul 23 2015 14:20:04 - crt_emu_cm3_gen build 244) Emu(0): Connected&Reset. CpuID: 410CC600. Info: HID64HS12 Debug protocol: SWD Frequency 3000 KHz. RTCK: Disabled. Vector catch: Enabled. loaded v.2 On-chip Flash Memory C:\nxp\LPCXpresso_7.9.0_455\lpcxpresso\bin\Flash\LPC800_16.cfx image 'LPC800 (16K) Jul 15 2015 11:49:51' Connected: was_reset=true. was_stopped=true LPCXpresso Free License - Download limit is 256K Writing 9464 bytes to address 0x00000000 in Flash Erased/Wrote page 0-9 with 9464 bytes in 343msec Flash Write Done Flash Program Summary: 9464 bytes in 0.34 seconds (26.95 KB/sec) Stopped (Was Reset) [Reset from Unknown] Stopped: Halt Quote:
GNU gdb (GNU Tools for ARM Embedded Processors) 7.8.0.20150604-cvs Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "--host=i686-w64-mingw32 --target=arm-none-eabi". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word". 0x1fff0008 in ?? () Ps: ( 0) at 00000000: 0 bytes - 0/9464 Ps: ( 10) at 00000000: 1024 bytes - 1024/9464 Ps: ( 21) at 00000400: 1024 bytes - 2048/9464 Ps: ( 32) at 00000800: 1024 bytes - 3072/9464 Ps: ( 43) at 00000C00: 1024 bytes - 4096/9464 Ps: ( 54) at 00001000: 1024 bytes - 5120/9464 Ps: ( 64) at 00001400: 1024 bytes - 6144/9464 Ps: ( 75) at 00001800: 1024 bytes - 7168/9464 Ps: ( 86) at 00001C00: 1024 bytes - 8192/9464 Ps: ( 97) at 00002000: 1024 bytes - 9216/9464 Ps: (108) at 00002400: 1024 bytes - 10240/9464 Nc: Progress meter completed at over 100% (10240/9464 bytes) Warning: the current language does not match this frame. Note: automatically using hardware breakpoints for read-only addresses.
Content originally posted in LPCWare by lpcxpresso-support on Fri Feb 26 08:23:56 MST 2016 Your logs don't really show a lot. I suggest that you try booting your board into ISP mode:
