ecosflash/notes.txt

   1 1. GDB startup script for debugging purposes.
   2
   3 # startup script for debugging flash erase
   4 target remote 10.0.0.56:2001
   5 monitor halt
   6 monitor reset
   7 load
   8 # stack
   9 monitor rm 13 0x7000
  10 # pc
  11 monitor rm 15 0x8000
  12 # arg1 to erase()
  13 monitor rm 0 0x1030000
  14 # arg2 to erase()
  15 monitor rm 1 0x10000
  16 stepi
  17
  18
  19
  20 2. Uploading flash driver via tftp
  21
  22
  23 $ tftp 10.0.0.108
  24 tftp> binary
  25 tftp> put at91fr40162.bin 10.0.0.108:/config/flashdriver.bin
  26 Sent 4048 bytes in 0.1 seconds
  27 tftp>
  28
  29
  30 4. Programming flash
  31
  32 eCosBoard_prog 0x1000000 /config/testdata.bin
  33
  34
  35 tftp> put /cygdrive/c/workspace/ecosboard/ecosboard/phi/bootloader/images/bootloader.bin 10.0.0.108:/config/test.bin
  36 Sent 165724 bytes in 3.9 seconds
  37
  38
  39 halt
  40 reg cpsr 0x000000D3
  41 mww 0xFFE00020 0x1
  42 mww 0xFFE00024 0x00000000
  43 mww 0xFFE00000 0x01002539
  44 eCosBoard_profile
  45 eCosBoard_prog /config/test.bin 0x1000000
  46 eCosBoard_profile_done
  47
  48
  49
  50
  51 set remote memory-write-packet-size fixed
  52
  53
  54 set remote memory-write-packet-size 8192
  55 set remote memory-map-packet on
  56 target remote 10.0.0.108:3333
  57 monitor halt
  58 monitor reg cpsr 0x000000D3
  59 monitor mww 0xFFE00020 0x1
  60 monitor mww 0xFFE00024 0x00000000
  61 monitor mww 0xFFE00000 0x01002539
  62
  63
  64 monitor eCosBoard_profile
  65 load
  66 monitor eCosBoard_profile_done
  67
  68
  69 source /tmp/ecosboard/packages/services/profile/gprof/current/host/gprof.gdb
  70 gprof_dump
  71 shell cp gmon.out /tmp/ecosboard/build/src
  72 echo To view: cd /tmp/ecosboard/build/src && gprof openocd
  73
  74
  75 Performance problems:
  76
  77 It seems the problem is that the actual flash programming takes time.
  78 hal_delay_us() is invoked between each time the
  79 CPU is polled for whether flash programming has completed.
  80
  81
  82 Flat profile:
  83
  84 Each sample counts as 0.01 seconds.
  85   %   cumulative   self              self     total
  86  time   seconds   seconds    calls  Ts/call  Ts/call  name
  87  35.82     37.66    37.66                             hal_delay_us
  88  11.90     50.17    12.51                             arm7tdmi_clock_out
  89   9.86     60.54    10.37                             gdb_get_packet
  90   5.36     66.17     5.63                             memcpy
  91   4.34     70.73     4.56                             target_buffer_get_u32
  92   3.34     74.25     3.51                             embeddedice_read_reg_w_che
  93 ck
  94   1.39     75.71     1.46                             arm7_9_write_memory
  95   1.34     77.11     1.40                             cyg_tcp_output
  96   1.33     78.51     1.40                             __udivsi3
  97   1.11     79.68     1.17                             cyg_tcp_input
  98   1.07     80.80     1.13                             arm7tdmi_store_word_regs
  99   0.95     81.81     1.00                             __udivdi3
 100   0.95     82.80     1.00                             __umodsi3
 101   0.93     83.78     0.98                             arm7tdmi_write_core_regs
 102   0.86     84.68     0.91                             arm7_9_poll
 103   0.85     85.57     0.89                             memset
 104   0.77     86.38     0.81                             cyg_splx
 105   0.64     87.05     0.67                             cyg_in_cksumdata
 106   0.63     87.71     0.66                             openeth_deliver
 107   0.57     88.31     0.60                             strstr
 108   0.51     88.85     0.53                             eth_drv_recv
 109   0.49     89.36     0.52                             cyg_splinternal
 110   0.49     89.88     0.52                             cyg_splimp
 111   0.46     90.36     0.48                             cyg_ip_input