tcl/target/pic32mx.cfg

   1
   2 if { [info exists CHIPNAME] } {
   3    set  _CHIPNAME $CHIPNAME
   4 } else {
   5    set  _CHIPNAME pic32mx
   6 }
   7
   8 if { [info exists ENDIAN] } {
   9    set  _ENDIAN $ENDIAN
  10 } else {
  11    set  _ENDIAN little
  12 }
  13
  14 if { [info exists CPUTAPID ] } {
  15    set _CPUTAPID $CPUTAPID
  16 } else {
  17    # force an error till we get a good number
  18    set _CPUTAPID 0x30938053
  19 }
  20
  21 # default working area is 16384
  22 if { [info exists WORKAREASIZE] } {
  23    set  _WORKAREASIZE $WORKAREASIZE
  24 } else {
  25    set  _WORKAREASIZE 0x4000
  26 }
  27
  28
  29 adapter_nsrst_delay 100
  30 jtag_ntrst_delay 100
  31
  32 #jtag scan chain
  33 #format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, IDCODE)
  34 jtag newtap $_CHIPNAME cpu -irlen 5 -ircapture 0x1 -irmask 0x1f -expected-id $_CPUTAPID
  35
  36 set _TARGETNAME $_CHIPNAME.cpu
  37 target create $_TARGETNAME mips_m4k -endian $_ENDIAN -chain-position $_TARGETNAME
  38
  39 #
  40 # At reset the pic32mx does not allow code execution from RAM
  41 # we have to setup the BMX registers to allow this.
  42 # One limitation is that we loose the first 2k of RAM.
  43 #
  44
  45 global _PIC32MX_DATASIZE
  46 global _PIC32MX_PROGSIZE
  47 set _PIC32MX_DATASIZE 0x800
  48 set _PIC32MX_PROGSIZE [expr ($_WORKAREASIZE - $_PIC32MX_DATASIZE)]
  49
  50 $_TARGETNAME configure -work-area-phys 0xa0000800 -work-area-size $_PIC32MX_PROGSIZE -work-area-backup 0
  51 $_TARGETNAME configure -event reset-init {
  52         #
  53         # from reset the pic32 cannot execute code in ram - enable ram execution
  54         # minimum offset from start of ram is 2k
  55         #
  56
  57         global _PIC32MX_DATASIZE
  58         global _PIC32MX_PROGSIZE
  59
  60         # BMXCON
  61         mww 0xbf882000 0x001f0040
  62         # BMXDKPBA: 2k kernel data @ 0xa0000800
  63         mww 0xbf882010 $_PIC32MX_DATASIZE
  64         # BMXDUDBA: 16k kernel program @ 0xa0000800
  65         mww 0xbf882020 $_PIC32MX_PROGSIZE
  66         # BMXDUPBA: 0k user program
  67         mww 0xbf882030 $_PIC32MX_PROGSIZE
  68 }
  69
  70 set _FLASHNAME $_CHIPNAME.flash0
  71 flash bank $_FLASHNAME pic32mx 0x1fc00000 0 0 0 $_TARGETNAME
  72 set _FLASHNAME $_CHIPNAME.flash1
  73 flash bank $_FLASHNAME pic32mx 0x1d000000 0 0 0 $_TARGETNAME
  74
  75 # For more information about the configuration files, take a look at:
  76 # openocd.texi