Hardware
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Revision as of 19:27, 23 September 2010 (edit) Bib (Talk | contribs) (→NVRAM) ← Previous diff |
Revision as of 20:50, 22 March 2018 (edit) (undo) Jeremywh7 (Talk | contribs) m (→NVRAM) Next diff → |
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+ | {{Languages|Hardware}} | ||
__toc__ | __toc__ | ||
==NVRAM== | ==NVRAM== | ||
- | NVRAM (non-volatile RAM) is the place where the permanent settings are stored. This includes | + | NVRAM (non-volatile RAM) also called flash space is the place where the permanent settings are stored. This includes |
:* DD-WRT settings that you normally change using [[Web Interface]] | :* DD-WRT settings that you normally change using [[Web Interface]] | ||
:* settings for user [[Startup Scripts]] | :* settings for user [[Startup Scripts]] | ||
Line 20: | Line 21: | ||
*Change variable value ''in RAM only'': | *Change variable value ''in RAM only'': | ||
nvram set <variable_name>="<value>" | nvram set <variable_name>="<value>" | ||
- | :(Quotes not needed for numeric/boolean values). | + | :(Quotes not needed for numeric/boolean values, needed for texts like <code>192.168.1.1</code> or <code>443 8080</code> or <code>sometext</code>). |
:Now you can play with the new settings or test user scripts but this new value will be lost after reboot unless you do <code>nvram commit</code>. | :Now you can play with the new settings or test user scripts but this new value will be lost after reboot unless you do <code>nvram commit</code>. | ||
Line 28: | Line 29: | ||
*Save all changed variables to NVRAM: | *Save all changed variables to NVRAM: | ||
nvram commit | nvram commit | ||
+ | Reboot the router for new settings in NVRAM to go into effect. | ||
- | + | *To erase the nvram block when running DD-WRT: | |
- | + | erase nvram | |
+ | *To erase nvram in the Broadcom CFE (bootloader): | ||
+ | nvram erase | ||
+ | *These are often confused! | ||
==Boardflags== | ==Boardflags== |
Revision as of 20:50, 22 March 2018
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Contents |
NVRAM
NVRAM (non-volatile RAM) also called flash space is the place where the permanent settings are stored. This includes
- DD-WRT settings that you normally change using Web Interface
- settings for user Startup Scripts
You can run the following commands using Command Line:
- Show the whole NVRAM content:
nvram show
- Show NVRAM content containing the pattern <search_pattern> (useful for quickly finding things in NVRAM):
nvram show | grep <search_pattern>
- Replace <replace_pattern> with what you are actually looking for. This can simply be a word or a regular expression
- Show value of a certain variable:
nvram get <variable_name>
- Change variable value in RAM only:
nvram set <variable_name>="<value>"
- (Quotes not needed for numeric/boolean values, needed for texts like
192.168.1.1
or443 8080
orsometext
). - Now you can play with the new settings or test user scripts but this new value will be lost after reboot unless you do
nvram commit
.
- Delete a variable (and its value). Useful when you made a typo in
<variable_name>
above:
nvram unset <variable_name>
- Save all changed variables to NVRAM:
nvram commit
Reboot the router for new settings in NVRAM to go into effect.
- To erase the nvram block when running DD-WRT:
erase nvram
- To erase nvram in the Broadcom CFE (bootloader):
nvram erase
- These are often confused!
Boardflags
/* boardflags */
- define BFL_BTCOEXIST 0x0001 /* This board implements Bluetooth coexistance */
- define BFL_PACTRL 0x0002 /* This board has gpio 9 controlling the PA */
- define BFL_AIRLINEMODE 0x0004 /* This board implements gpio13 radio disable indication */
- define BFL_ENETROBO 0x0010 /* This board has robo switch or core */
- define BFL_CCKHIPWR 0x0040 /* Can do high-power CCK transmission */
- define BFL_ENETADM 0x0080 /* This board has ADMtek switch */
- define BFL_ENETVLAN 0x0100 /* This board has vlan capability */
- define BFL_AFTERBURNER 0x0200 /* This board supports Afterburner mode */
- define BFL_NOPCI 0x0400 /* This board leaves PCI floating */
- define BFL_FEM 0x0800 /* This board supports the Front End Module */
- define BFL_EXTLNA 0x1000 /* This board has an external LNA */
- define BFL_HGPA 0x2000 /* This board has a high gain PA */
- define BFL_BTCMOD 0x4000 /* This board' BTCOEXIST is in the alternate gpios */
Overclocking
BCM3303 v0.7 clock frequencies: (todo...)
MIPS/CPU | Backplane | Comment |
BCM3303 v0.8 clock frequencies:
MIPS/CPU | Backplane | Comment |
183 | 91 | |
188 | 94 | |
197 | 98 | |
200 | 100 | |
206 | 103 | |
212 | 106 | |
216 | 108 | |
217 | 109 | |
225 | 113 | |
238 | 119 | |
240 | 120 | |
250 | 125 |
Hardware Modifications
Hardware Modifications (mods) are not necessarily DD-WRT specific or compatible.