You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

51 lines
1.5 KiB

  1. # NXP LPC2478 ARM7TDMI-S with 512kB Flash and 64kB Local On-Chip SRAM (98kB total), clocked with 4MHz internal RC oscillator
  2. if { [info exists CHIPNAME] } {
  3. set _CHIPNAME $CHIPNAME
  4. } else {
  5. set _CHIPNAME lpc2478
  6. }
  7. if { [info exists ENDIAN] } {
  8. set _ENDIAN $ENDIAN
  9. } else {
  10. set _ENDIAN little
  11. }
  12. if { [info exists CPUTAPID ] } {
  13. set _CPUTAPID $CPUTAPID
  14. } else {
  15. set _CPUTAPID 0x4f1f0f0f
  16. }
  17. #delays on reset lines
  18. adapter_nsrst_delay 100
  19. jtag_ntrst_delay 100
  20. # LPC2000 -> SRST causes TRST
  21. reset_config trst_and_srst srst_pulls_trst
  22. jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
  23. set _TARGETNAME $_CHIPNAME.cpu
  24. target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm7tdmi-s_r4
  25. # LPC2478 has 64kB of SRAM on its main system bus (so-called Local On-Chip SRAM)
  26. $_TARGETNAME configure -work-area-phys 0x40000000 -work-area-size 0x10000 -work-area-backup 0
  27. $_TARGETNAME configure -event reset-init {
  28. # Force target into ARM state
  29. arm core_state arm
  30. # Do not remap 0x0000-0x0020 to anything but the Flash
  31. mwb 0xE01FC040 0x01
  32. }
  33. # LPC2378 has 512kB of FLASH, but upper 8kB are occupied by bootloader.
  34. # After reset the chip uses its internal 4MHz RC oscillator.
  35. # flash bank lpc2000 <base> <size> 0 0 <target#> <variant> <clock> [calc checksum]
  36. set _FLASHNAME $_CHIPNAME.flash
  37. flash bank $_FLASHNAME lpc2000 0x0 0x7D000 0 0 $_TARGETNAME lpc2000_v2 12000 calc_checksum
  38. # Try to use RCLK, if RCLK is not available use "normal" mode. 4MHz / 6 = 666kHz, so use 500.
  39. jtag_rclk 500