From afe5e86adf6e1622a544b1fa218c4782115826cd Mon Sep 17 00:00:00 2001 From: patacongo Date: Sun, 7 Nov 2010 16:21:12 +0000 Subject: Update OpenOCD notes and scripts git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3088 42af7a65-404d-4744-a932-0658087f49c3 --- nuttx/configs/olimex-lpc1766stk/tools/olimex.cfg | 74 +++++++++++++++--------- nuttx/configs/olimex-lpc1766stk/tools/oocd.sh | 16 ++++- 2 files changed, 61 insertions(+), 29 deletions(-) (limited to 'nuttx/configs/olimex-lpc1766stk/tools') diff --git a/nuttx/configs/olimex-lpc1766stk/tools/olimex.cfg b/nuttx/configs/olimex-lpc1766stk/tools/olimex.cfg index 9241101e2..977c76008 100755 --- a/nuttx/configs/olimex-lpc1766stk/tools/olimex.cfg +++ b/nuttx/configs/olimex-lpc1766stk/tools/olimex.cfg @@ -1,3 +1,5 @@ +# NXP LPC1766 Cortex-M3 with 256kB Flash and 32kB+32kB Local On-Chip SRAM, + #daemon configuration telnet_port 4444 gdb_port 3333 @@ -8,7 +10,9 @@ ft2232_device_desc "Olimex OpenOCD JTAG A" ft2232_layout "olimex-jtag" ft2232_vid_pid 0x15BA 0x0003 -# NXP LPC1766 Cortex-M3 with 256kB Flash and 32kB+32kB Local On-Chip SRAM, clocked with 4MHz internal RC oscillator +# LPC17xx chips support both JTAG and SWD transports. +# Adapt based on what transport is active. +source [find target/swj-dp.tcl] if { [info exists CHIPNAME] } { set _CHIPNAME $CHIPNAME @@ -16,12 +20,18 @@ if { [info exists CHIPNAME] } { set _CHIPNAME lpc1766 } -if { [info exists ENDIAN] } { - set _ENDIAN $ENDIAN +# After reset the chip is clocked by the ~4MHz internal RC oscillator. +# When board-specific code (reset-init handler or device firmware) +# configures another oscillator and/or PLL0, set CCLK to match; if +# you don't, then flash erase and write operations may misbehave. +# (The ROM code doing those updates cares about core clock speed...) +# +# CCLK is the core clock frequency in KHz +if { [info exists CCLK ] } { + set _CCLK $CCLK } else { - set _ENDIAN little + set _CCLK 4000 } - if { [info exists CPUTAPID ] } { set _CPUTAPID $CPUTAPID } else { @@ -29,33 +39,45 @@ if { [info exists CPUTAPID ] } { } #delays on reset lines -jtag_nsrst_delay 200 +adapter_nsrst_delay 200 jtag_ntrst_delay 200 -# LPC2000 & LPC1700 -> SRST causes TRST -reset_config trst_and_srst srst_pulls_trst - -jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID +#jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID +swj_newdap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID set _TARGETNAME $_CHIPNAME.cpu -target create $_TARGETNAME cortex_m3 -endian $_ENDIAN -chain-position $_TARGETNAME +target create $_TARGETNAME cortex_m3 -chain-position $_TARGETNAME -# LPC1766 has 32kB of SRAM on its main system bus (so-called Local On-Chip SRAM) -$_TARGETNAME configure -work-area-phys 0x10000000 -work-area-size 0x8000 -work-area-backup 0 +# LPC1766 has 32kB of SRAM In the ARMv7-M "Code" area (at 0x10000000) +# and 32K more on AHB, in the ARMv7-M "SRAM" area, (at 0x2007c000). +$_TARGETNAME configure -work-area-phys 0x10000000 -work-area-size 0x8000 -# REVISIT is there any good reason to have this reset-init event handler?? -# Normally they should set up (board-specific) clocking then probe the flash... -$_TARGETNAME configure -event reset-init { - # Force NVIC.VTOR to point to flash at 0 ... - # WHY? This is it's reset value; we run right after reset!! - mwb 0xE000ED08 0x00 -} +# LPC1766 has 256kB of flash memory, managed by ROM code (including a +# boot loader which verifies the flash exception table's checksum). +# flash bank lpc2000 0 0 [calc checksum] +set _FLASHNAME $_CHIPNAME.flash +flash bank $_FLASHNAME lpc2000 0x0 0x40000 0 0 $_TARGETNAME \ + lpc1700 $_CCLK calc_checksum -# LPC1766 has 256kB of user-available FLASH (bootloader is located in separate dedicated region). -# flash bank lpc1700 0 0 [calc_checksum] +# Run with *real slow* clock by default since the +# boot rom could have been playing with the PLL, so +# we have no idea what clock the target is running at. +jtag_khz 10 -set _FLASHNAME $_CHIPNAME.flash -flash bank $_FLASHNAME lpc2000 0x0 0x40000 0 0 $_TARGETNAME lpc1700 80000 calc_checksum +$_TARGETNAME configure -event reset-init { + # Do not remap 0x0000-0x0020 to anything but the flash (i.e. select + # "User Flash Mode" where interrupt vectors are _not_ remapped, + # and reside in flash instead). + # + # See Table 612. Memory Mapping Control register (MEMMAP - 0x400F C040) bit description + # Bit Symbol Value Description Reset + # value + # 0 MAP Memory map control. 0 + # 0 Boot mode. A portion of the Boot ROM is mapped to address 0. + # 1 User mode. The on-chip Flash memory is mapped to address 0. + # 31:1 - Reserved. The value read from a reserved bit is not defined. NA + # + # http://ics.nxp.com/support/documents/microcontrollers/?scope=LPC1766&type=user -# 4MHz / 6 = 666kHz, so use 500 -jtag_khz 100 + mww 0x400FC040 0x01 +} diff --git a/nuttx/configs/olimex-lpc1766stk/tools/oocd.sh b/nuttx/configs/olimex-lpc1766stk/tools/oocd.sh index 6f4bd6047..b45d95b5d 100755 --- a/nuttx/configs/olimex-lpc1766stk/tools/oocd.sh +++ b/nuttx/configs/olimex-lpc1766stk/tools/oocd.sh @@ -1,4 +1,7 @@ #!/bin/sh +# +# See configs/olimex-lpc1766stk/README.txt for information about +# this file. TOPDIR=$1 USAGE="$0 [-d]" @@ -8,10 +11,16 @@ if [ -z "${TOPDIR}" ]; then exit 1 fi -OPENOCD_PATH="/cygdrive/c/OpenOCD/openocd-0.4.0/src" +# Assume that OpenOCD was installed and at /usr/local/bin. Uncomment +# the following to run directly from the build directory +#OPENOCD_PATH="/home/OpenOCD/openocd/src" +#TARGET_PATH="/home/OpenOCD/openocd/tcl" +OPENOCD_PATH="/usr/local/bin" +TARGET_PATH="/usr/local/share/openocd/scripts" + OPENOCD_EXE=openocd.exe OPENOCD_CFG="${TOPDIR}/configs/olimex-lpc1766stk/tools/olimex.cfg" -OPENOCD_ARGS="-f `cygpath -w ${OPENOCD_CFG}`" +OPENOCD_ARGS="-f ${OPENOCD_CFG} -s ${TARGET_PATH}" if [ "X$2" = "X-d" ]; then OPENOCD_ARGS=$OPENOCD_ARGS" -d3" @@ -32,7 +41,8 @@ if [ ! -f ${OPENOCD_CFG} ]; then fi echo "Starting OpenOCD" -${OPENOCD_PATH}/${OPENOCD_EXE} ${OPENOCD_ARGS} & +cd ${OPENOCD_PATH} || { echo "Failed to CD to ${OPENOCD_PATH}"; exit 1; } +${OPENOCD_EXE} ${OPENOCD_ARGS} & echo "OpenOCD daemon started" ps -ef | grep openocd echo "In GDB: target remote localhost:3333" -- cgit v1.2.3