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annotate loadtools/loadtool.help @ 459:38afaeb194ea

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os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Mon, 23 Jun 2014 06:54:40 +0000
parents 4f8a9b2229e9
children
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1 This is the help file for fc-loadtool. See lthelp.c for the code
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2 that parses and displays it. The parsing code is the only
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3 documentation for the format of this help file - if you are going to
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4 edit this help text, read the parsing code first.
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5
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6 === main
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7 This utility allows you to perform the following operations
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8 on your Calypso GSM device:
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9
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10 * Peek and poke registers
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11 * Dump any part of memory
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12 * Read and program flash
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13
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14 See the following help topics for more information:
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15
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16 help peekpoke Register peek and poke commands
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17 help flash Flash operation commands
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18 help all List of all implemented commands
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19 help exit Controlling the cleanup on exit
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20
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21 === all
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22 abbr Read an ABB register
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23 abbw Write an ABB register
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24 baud Switch the serial comm with loadagent to a different baud rate
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25 crc32 Get CRC-32 of a memory area on the target
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26 dieid Read the Calypso die ID
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27 dump Dump a target memory region in hex and ASCII
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28 dump2bin Dump a target memory region to a file in binary format
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29 dump2srec Dump a target memory region to a file in S-record format
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30 exec Execute a command script
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31 exit Exit from loadtool and clean up the target device state
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32 flash Flash operations
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33 flash2 Operations on the 2nd flash bank (Pirelli phone only)
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34 quit Alias for exit
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35 r8 Read an 8-bit register or memory location
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36 r16 Read a 16-bit register or memory location
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37 r32 Read a 32-bit register or memory location
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38 w8 Write an 8-bit register or memory location
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39 w16 Write a 16-bit register or memory location
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40 w32 Write a 32-bit register or memory location
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41
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42 To get help on any command, type help and the command keyword.
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43
421
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44 === abbr
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45 === abbw
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46 abbr pg reg Read ABB register <reg> on page <pg>
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47 abbw pg reg val Write <val> into register <reg> on page <pg>
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48
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49 The <pg> and <reg> arguments default to decimal unless prefixed with 0x;
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50 the <val> argument to abbw is always hexadecimal.
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51
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52 === baud
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53 baud Display the current baud rate
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54 baud <rate> Switch the baud rate to <rate> (number in bps)
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55
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56 The supported baud rates are:
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57
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58 Standard: 19200, 38400, 57600, 115200
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59 Calypso special: 203125, 406250, 812500
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60
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61 The baud command coordinates the necessary simultaneous switching of the
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62 baud rate on both the host and the target (loadagent). Loadagent always
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63 supports all of the listed rates and will switch happily, but in the case
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64 of the higher non-standard baud rates fc-loadtool has no way of knowing
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65 ahead of time whether or not the requested baud rate is supported by your
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66 usb2serial adapter or whatever other serial port hardware and driver
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67 you are using. If the baud rate switch fails, the communication link with
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68 the target will be broken and fc-loadtool will exit ungracefully.
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69
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70 === crc32
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71 crc32 hex-start hex-len
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72
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73 The first argument is the starting target memory address in hex; the second
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74 argument is the length of the area to CRC, also in hex. The command will be
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75 sent to loadagent; CRC-32 of the requested range will be computed on the target
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76 and displayed in hex.
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77
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78 === dieid
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79 dieid Display the Calypso die ID
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80 dieid <filename> Display the Calypso die ID, and also save it in the
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81 named file
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82
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83 The Calypso die ID resides in 4 16-bit registers at target addresses
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84 0xFFFEF010 through 0xFFFEF016. It is displayed on the terminal and optionally
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85 saved to a file in this simple form:
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86
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87 FFFEF010: xxxx
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88 FFFEF012: xxxx
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89 FFFEF014: xxxx
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90 FFFEF016: xxxx
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91
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92 === dump
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93 dump hex-start hex-len
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94
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95 The first argument is the starting target memory address in hex; the second
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96 argument is the length of the area to dump, also in hex. The dump will be
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97 displayed on the terminal in hex and ASCII.
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98
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99 === dump2bin
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100 === dump2srec
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101 dump2bin hex-start hex-len outfile
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102 dump2srec hex-start hex-len outfile
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103
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104 The first argument is the starting target memory address in hex; the second
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105 argument is the length of the area to dump, also in hex; the third argument
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106 is the name of the output file to be created/written. The dump will be saved
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107 in binary or S-records as per the chosen command, always in the native byte
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108 order of the Calypso ARM7 target (little-endian).
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109
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110 === exec
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111 exec <script-file>
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112
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113 Read and execute commands from the named file. If the given file name contains
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114 no slashes, the script file is sought in the default directory (normally
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115 /usr/local/share/freecalypso unless changed in the code); otherwise the given
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116 name is used directly as the pathname.
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117
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118 === exit
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119 === quit
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120 exit Clean up the target in the default manner and exit
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121 exit bare Exit loadtool without doing anything to the target
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122 exit iota-off Exit loadtool and command an ABB power-off on the target
105
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123 exit jump0 Exit loadtool and command the target to reboot via jump to 0
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124
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125 The default method of cleaning up the target device state upon exit is set
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126 in the hardware parameters file selected with the -h or -H command line
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127 option; it is the exit-mode setting. On the Pirelli phone the default exit
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128 mode is jump0: it causes the phone to reboot and enter the "charging boot"
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129 mode, as the USB cable is connected and VBUS is present. On Compal phones the
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130 default exit mode is iota-off.
105
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131
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132 If your device is a GTA02 and you are running fc-loadtool from inside the phone
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133 (from the AP), the exit command will power off the modem from the AP. If you
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134 are talking to GTA02 Calypso from an external host via the headset jack, there
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135 is nothing that fc-loadtool can currently do to power the modem off (exit is
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136 the same as exit bare in this case) - power it off yourself from the AP.
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137
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138 If you do an exit bare without powering the target device off in some other
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139 way, the device will still be running loadagent, which is probably not what you
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140 want. However, it is the proper exit mode if you have powered off or reset the
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141 target device by brute force (yanking the battery).
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142
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143 === flash
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144 === flash2
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145 The primary end use of fc-loadtool is for reading and writing the NOR flash
421
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146 memories of the supported GSM devices. Compal phones and the GTA0x GSM modem
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147 have only one flash bank (as in chip select), and are manipulated with the
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148 flash command. The Pirelli phone has two flash banks (as in chip selects) of
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149 8 MiB each; they are manipulated with the flash and flash2 commands.
105
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150
421
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151 The following flash operations are available on all target devices:
105
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152
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153 flash blankchk Blank-check a region of flash
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154 flash dump2bin Dump flash content to a file in binary format
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155 flash dump2srec Dump flash content to a file in S-record format
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156 flash erase Erase a region of flash
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157 flash info Display flash configuration info
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158 flash program-bin Program flash with a binary file
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159 flash program-m0 Program flash with an image in TI's *.m0 format
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160 flash program-srec Program flash with an image in standard S-record format
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161 flash quickprog Program a few flash words from the command line
421
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162 flash reset Reset flash chip to read array mode
105
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163 flash sectors Display the list of flash sector addresses and sizes
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164
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165 Substitute flash2 instead of flash when operating on the 2nd flash chip select
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166 of Pirelli-style flash memory configurations. Prepend help before a command to
421
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167 get usage information, e.g., help flash program-bin. See help compal for some
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168 additional info specific to Compal targets.
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169
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170 === compal
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171 === compalflash
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172 === flash:compal
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173 Compal phones have Intel or Intel-style flash chips; other Calypso targets for
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174 which loadtool was originally designed have AMD-style flash chips. The author
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175 of the present software has a personal bias toward AMD-style flash, hence the
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176 support for Intel-style flash is not as clean. Compal phones also have the
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177 Calypso boot ROM disabled, and depend on flash-resident boot code instead.
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178 This property makes them brickable.
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179
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180 The following additional loadtool commands apply only to Compal targets with
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181 Intel-style flash:
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182
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183 flash erase-program-boot Erase and reprogram the boot sector
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184 flash status Read Intel flash Status Register
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185 flash unlock Unlock flash sectors
105
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186
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187 === flash:blankchk
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188 flash[2] blankchk hex-start-offset hex-length
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189
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190 Blank-checks an area of flash starting at the specified hex offset (from the
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191 base address of the flash bank) and extending for the specified hex length.
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192 Reports whether the checked region is blank or not. Flash must be blank (FF in
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193 all bytes) before it can be programmed.
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194
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195 === flash:dump2bin
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196 flash[2] dump2bin outfile [offset [length]]
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197
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198 Read device flash content and save it to a file. If only a filename is
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199 specified, the full flash bank is dumped; one can optionally specify a starting
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200 offset and an explicit length, both in hex.
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201
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202 This command is merely a user-friendly front-end to the plain dump2bin command;
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203 see help dump2bin.
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204
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205 === flash:dump2srec
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206 flash[2] dump2srec outfile [offset [length]]
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207
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208 Read device flash content and save it to a file. If only a filename is
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209 specified, the full flash bank is dumped; one can optionally specify a starting
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210 offset and an explicit length, both in hex.
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211
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212 This command is merely a user-friendly front-end to the plain dump2srec command;
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213 see help dump2srec.
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214
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215 === flash:erase
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216 flash[2] erase hex-start-offset hex-length
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217
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218 Erases an area of flash starting at the specified hex offset (from the base
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219 address of the flash bank) and extending for the specified hex length.
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220
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221 Flash memory can only be erased (turning 0 bits back to 1s) in units of
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222 sectors, as set in stone by the design of the flash chip in use. Loadtool
421
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223 knows the sector layout of the flash chip in your device from CFI or from the
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224 hardware parameters file (you can display it with the flash[2] sectors
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225 command), and enforces that both arguments to the flash[2] erase command lie
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226 on sector boundaries.
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227
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228 === flash:erase-program-boot
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229 flash erase-program-boot binfile [length]
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230
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231 This operation is applicable to Compal targets only. This command erases and
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232 reprograms flash sector 0 (the boot sector) with minimized vulnerability to
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233 bricking by loading the new boot code into a scratchpad RAM area on the target,
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234 then commanding loadagent (running on the target) to erase and reprogram the
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235 dangerous flash sector without requiring further interaction with loadtool.
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236 (In contrast, loadtool's "regular" flash erase and program operations are
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237 driven primarily by loadtool, with loadagent providing only low-level
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diff changeset
238 functions.)
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diff changeset
239
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240 The new bits to be programmed are taken from the specified binary file. Byte 0
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241 of the file goes into byte 0 of the flash and so on, for the specified length.
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242 If no length argument is given, it defaults to the length of the file, which
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243 must not exceed the length of flash sector 0: 64 KiB on the "basic" Compal
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244 phones or 8 KiB on C155/156.
105
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245
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246 === flash:info
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247 This command displays summary information about the flash memory configuration
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248 of the Calypso target device loadtool thinks it's talking to.
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249
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250 === flash:program-bin
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251 flash[2] program-bin flash-offset binfile [file-offset [length]]
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252
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253 This command programs flash, using a binary file as the data source. One must
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254 always specify the starting flash offset (from the base address of the flash
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parents:
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255 bank), but the starting file offset and length are optional, defaulting to the
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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256 whole file.
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257
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258 The binary file must be in the native byte order of the Calypso ARM7 processor,
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259 which is little-endian. Images produced by flash[2] dump2bin are suitable.
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260
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261 === flash:program-m0
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262 flash[2] program-m0 image.m0
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263
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264 *.m0 is the format that has been used by companies like TI and Closedmoko for
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265 their proprietary firmware images. It is emitted by TI's hex470 tool, and in
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parents:
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266 the proprietary environment it is fed as an input to FLUID. (The latter is
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267 TI's Flash Loader Utility Independent of Device, and fc-loadtool can be seen as
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268 an independent reimplementation thereof - although it doesn't have the same
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269 level of device-independence.) The *.m0 format is actually a variant of
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270 Motorola's SREC, but with a different byte order: each 16-bit word is
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271 byte-reversed relative to the native byte order of the ARM7 processor.
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272 (This strange byte order actually makes some sense if one views the image as a
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273 long array of 16-bit hex values; 16 bits is the width of the flash memory on
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274 Calypso GSM devices and thus the natural unit size for flash programming.)
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275
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276 Because each S-record contains an address, no addresses or offsets need to be
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277 specified in the flash[2] program-m0 command, only the image file.
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278
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279 === flash:program-srec
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280 flash[2] program-srec image.srec
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281
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282 This command programs the flash with an image in the standard S-record format,
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283 in the native little-endian byte order of the Calypso ARM7 processor. It is
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284 the opposite byte order from that used by TI's *.m0 files -
105
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285 see help flash program-m0. Images produced by flash[2] dump2srec are suitable
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286 for flash[2] program-srec.
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287
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288 Because each S-record contains an address, no addresses or offsets need to be
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289 specified in the flash[2] program-srec command, only the image file.
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290
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291 === flash:quickprog
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292 flash[2] quickprog hex-offset hex-data-string
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293
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294 This command is intended only for developers; it provides raw access to
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295 loadagent's basic flash write primitive. Read the source code for more
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296 information.
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297
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298 === flash:reset
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299 Intel-style flash memory chips (found in Compal phones) have two "stable" or
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300 "quiescent" states: reading array data and reading the status register (SR).
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301 After an erase or program operation the flash chip is "parked" in the Read SR
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302 state; the flash reset command switches it back to reading array data.
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303
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304 This command works for AMD-style flash as well (found in Openmoko and Pirelli
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305 phones), but it is normally not needed, as AMD-style flash chips automatically
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306 return to the read-array-data state after every erase or program operation.
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307
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308 === flash:sectors
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309 This command displays the list of sector offsets and sizes for the flash chip
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310 in the Calypso target device loadtool thinks it's talking to.
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311
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312 === flash:status
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313 This command is only applicable to Intel-style flash as found in Compal phones.
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314 It reads the flash chip's Status Register, which can be used to diagnose errors
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315 incurred by previous erase or program operations.
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316
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317 === flash:unlock
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318 flash unlock hex-start-offset hex-length
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319
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320 This command is only applicable to Intel-style flash as found in Compal phones.
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321 These flash chips power up with each sector (erase block) in the "locked" state;
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322 each sector needs to be unlocked before it can be erased or programmed.
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323
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324 This command is normally not needed, as the flash erase command unlocks each
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325 sector before erasing it. However, if you are going to perform program
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326 operations in some sectors without erasing them, you will need to unlock them
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327 explicitly first.
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328
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329 This command operates only on sector boundaries just like flash erase.
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330
105
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331 === r8
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332 === r16
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333 === r32
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334 === w8
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335 === w16
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336 === w32
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337 === peekpoke
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338 The register peek and poke commands are:
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339
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340 r8 addr Read an 8-bit register or memory location
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341 r16 addr Read a 16-bit register or memory location
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342 r32 addr Read a 32-bit register or memory location
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343 w8 addr data Write an 8-bit register or memory location
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344 w16 addr data Write a 16-bit register or memory location
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345 w32 addr data Write a 32-bit register or memory location
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346
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347 All addresses and data values are in hex.
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348