dabe7d5d808c3cb9e5db8cca68eb494813b1fabc
[mw/openocd-lm32.git] / 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