#--- Ajout de PM
# Ce script est inspire de target/lpc2294.cfg, qui comporte des manques.
set _CHIPNAME lpc2294
set _ENDIAN little
#--- Ajout de PM
# Dans target/lpc2294.cfg l'identification du micro-controleur manque,
# le _CPUTAPID est fixe a 0xffffffff. le message suivant fournit
# la bonne valeur : 0x4f1f0f0f
# Voir http://forum.sparkfun.com/viewtopic.php?t=17630&sid=f13d2b5736f51f8f2d21f065e3b9331b
set _CPUTAPID 0x4f1f0f0f
adapter_nsrst_delay 200
#--- Ajout de PM
# Par defaut, l'horloge JTAG est a 6 MHz, ce qui trop rapide.
# Le manuel de OpenOCD indique : "For most ARM-based processors the fastest
# JTAG clock1 is one sixth of the CPU clock; or one eighth for ARM11 cores.
# Consult chip documentation to determine the peak JTAG clock rate, which might be less than that.
# Voir http://forum.sparkfun.com/viewtopic.php?t=17630&sid=f13d2b5736f51f8f2d21f065e3b9331b
# Cette instruction permet de la fixer a 1 MHz
jtag_rclk 1000
#use combined on interfaces or targets that can't set TRST/SRST separately
reset_config trst_and_srst srst_pulls_trst
#jtag scan chain
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm7tdmi-s_r4
$_TARGETNAME configure -work-area-phys 0x40000000 -work-area-size 0x4000 -work-area-backup 0
#flash configuration
#flash bank lpc2000 0 0
set _FLASHNAME $_CHIPNAME.flash
#--- Ajout de PM
# Dans target/lpc2294.cfg, la frequence du quartz (avant dernier argument),
# n'est pas celle qdu quartz présent sur la carte : 14,7456 MHz ;
# Comme la frequence doit etre indiquee en kHz, le parametre est : 14746.
flash bank $_FLASHNAME lpc2000 0x0 0x40000 0 0 $_TARGETNAME lpc2000_v1 14746 calc_checksum
# For more information about the configuration files, take a look at:
# openocd.texi