1 # Main file for NXP LPC17xx Cortex-M3
5 # This file should not be included directly, rather
6 # by the lpc1751.cfg, lpc1752.cfg, etc. which set the
7 # needed variables to the appropriate values.
11 # LPC17xx chips support both JTAG and SWD transports.
12 # Adapt based on what transport is active.
13 source [find target/swj-dp.tcl]
15 if { [info exists CHIPNAME] } {
16 set _CHIPNAME $CHIPNAME
18 error "_CHIPNAME not set. Please do not include lpc17xx.cfg directly, but the specific chip configuration file (lpc1751.cfg, lpc1764.cfg, etc)."
21 # After reset the chip is clocked by the ~4MHz internal RC oscillator.
22 # When board-specific code (reset-init handler or device firmware)
23 # configures another oscillator and/or PLL0, set CCLK to match; if
24 # you don't, then flash erase and write operations may misbehave.
25 # (The ROM code doing those updates cares about core clock speed...)
27 # CCLK is the core clock frequency in KHz
28 if { [info exists CCLK] } {
34 if { [info exists CPUTAPID] } {
35 set _CPUTAPID $CPUTAPID
37 error "_CPUTAPID not set. Please do not include lpc17xx.cfg directly, but the specific chip configuration file (lpc1751.cfg, lpc1764.cfg, etc)."
40 if { [info exists CPURAMSIZE] } {
41 set _CPURAMSIZE $CPURAMSIZE
43 error "_CPURAMSIZE not set. Please do not include lpc17xx.cfg directly, but the specific chip configuration file (lpc1751.cfg, lpc1764.cfg, etc)."
46 if { [info exists CPUROMSIZE] } {
47 set _CPUROMSIZE $CPUROMSIZE
49 error "_CPUROMSIZE not set. Please do not include lpc17xx.cfg directly, but the specific chip configuration file (lpc1751.cfg, lpc1764.cfg, etc)."
52 #delays on reset lines
53 adapter_nsrst_delay 200
56 #jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
57 swj_newdap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
59 set _TARGETNAME $_CHIPNAME.cpu
60 target create $_TARGETNAME cortex_m3 -chain-position $_TARGETNAME
62 # The LPC17xx devices have 8/16/32kB of SRAM In the ARMv7-M "Code" area (at 0x10000000)
63 $_TARGETNAME configure -work-area-phys 0x10000000 -work-area-size $_CPURAMSIZE
65 # The LPC17xx devies have 32/64/128/256/512kB of flash memory, managed by ROM code
66 # (including a boot loader which verifies the flash exception table's checksum).
67 # flash bank <name> lpc2000 <base> <size> 0 0 <target#> <variant> <clock> [calc checksum]
68 set _FLASHNAME $_CHIPNAME.flash
69 flash bank $_FLASHNAME lpc2000 0x0 $_CPUROMSIZE 0 0 $_TARGETNAME \
70 lpc1700 $_CCLK calc_checksum
72 # Run with *real slow* clock by default since the
73 # boot rom could have been playing with the PLL, so
74 # we have no idea what clock the target is running at.
77 $_TARGETNAME configure -event reset-init {
78 # Do not remap 0x0000-0x0020 to anything but the flash (i.e. select
79 # "User Flash Mode" where interrupt vectors are _not_ remapped,
80 # and reside in flash instead).
82 # See Table 612. Memory Mapping Control register (MEMMAP - 0x400F C040) bit description
83 # Bit Symbol Value Description Reset
85 # 0 MAP Memory map control. 0
86 # 0 Boot mode. A portion of the Boot ROM is mapped to address 0.
87 # 1 User mode. The on-chip Flash memory is mapped to address 0.
88 # 31:1 - Reserved. The value read from a reserved bit is not defined. NA
90 # http://ics.nxp.com/support/documents/microcontrollers/?scope=LPC1768&type=user
95 # if srst is not fitted use VECTRESET to
96 # perform a soft reset - SYSRESETREQ is not supported
97 cortex_m3 reset_config vectreset