git.sur5r.net Git - openocd/blob - ecosflash/notes.txt

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