Changes between Initial Version and Version 1 of Debugging/OpenOCD/LPC17xx

Timestamp:

09/17/15 16:38:59 (9 years ago)

Author:

Pavel Pisa

Comment:

Document some options for use of OpenOCD on LPC17xx/LPC40xx based boards.

Debugging/OpenOCD/LPC17xx

@@ +1 @@
+= OpenOCD Configuration for LPC17xx =
+
+[[TOC(Debugging/OpenOCD/LPC17xx , depth=2)]]
+
+The OpenOCD includes directly configuration for MBED LPC1768 based board
+([http://sourceforge.net/p/openocd/code/ci/master/tree/tcl/board/mbed-lpc1768.cfg mbed-lpc1768.cfg])
+
+We use next configuration for our own FTDI based [http://pikron.com/pages/products/accessories.html Edgewall Software] JT_USB5/6]
+JTAG pod for our LPC4088 based boards ([http://pikron.com/pages/products/cpu_boards/lx_cpu.html  LX_CPU]).
+
+The presented configuration variant starts the target first to allow setup SDRAM by boot
+loader code and then application is loaded over GDB/DDD to SDRAM
+
+File "lx_cpu-lpc4088.cfg":
+{{{
+# This is configuration for PiKRON's LX_CPU1 based on NXP LPC4088 chip.
+# http://pikron.com/pages/products/cpu_boards/lx_cpu.html
+
+#daemon configuration
+telnet_port 4444
+gdb_port 3333
+
+adapter_khz 1000
+
+source [find jt_usb5-jtag.cfg]
+
+source [find target/lpc40xx.cfg]
+
+init
+
+reset init
+#wait_halt
+resume
+sleep 1000
+halt
+wait_halt
+
+adapter_khz 1000
+}}}
+
+File jt_usb5-jtag.cfg:
+{{{
+interface ftdi
+#ftdi_device_desc "Dual RS232"
+ftdi_vid_pid 0x0403 0x6010
+
+ftdi_layout_init 0x0cf8 0x0cfb
+
+#ftdi_layout_signal nTRST -data 0x0010 -noe 0x0800
+#ftdi_layout_signal nSRST -ndata 0x0040 -noe 0x0400
+#ftdi_layout_signal SWD_EN -nalias nTRST
+#ftdi_layout_signal SWDIO_OE -alias TMS
+
+ftdi_layout_signal nTRST -data 0x0010
+ftdi_layout_signal nSRST -ndata 0x0040
+
+ftdi_layout_signal LED -data 0x0800
+
+transport select jtag
+
+#transport select swd
+#ftdi_layout_signal SWD_EN -ndata 0x0400
+#ftdi_layout_signal SWDIO_OE -alias TMS
+}}}
+
+File gdb-openocd.init:
+{{{
+#set endian big
+target remote localhost:3333
+#load
+}}}
+
+File "lx_cpu-jt_usb5-ddd" for combined start of GDB and DDD.
+{{{
+#!/bin/sh
+
+SCRIP_DIR="$(dirname "$(readlink -f "$0")")"
+
+nc -w 3 -z localhost 4444
+if [ $? -ne 0 ]
+then
+  echo "Starting OpenOCD"
+  openocd -f "$SCRIP_DIR/lx_cpu-lpc4088.cfg" &
+  OPENOCD_PID=$!
+  nc -w 10 -z localhost 4444
+  if [ $? -ne 0 ]
+  then
+    echo "OpenOCD start failed"
+  fi
+fi
+
+sleep 10
+
+ddd --debugger arm-elf-gdb -x "$SCRIP_DIR/gdb-openocd.init" "$1"
+
+kill $OPENOCD_PID
+}}}