Difference between revisions of "Leapster Explorer: Over Clock"
GrizzlyAdams (talk | contribs) (Test results) |
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− | + | == Summary == | |
+ | This tutorial shows you how to overclock or underclock your Leapster Explorer. | ||
− | == | + | == Hardware Needed == |
+ | [[LeapFrog_Pollux_Platform:_Console_Access| Console Access]] | ||
− | + | == Temporarily == | |
+ | To set the CPU Frequency run this command, example is 532.5mhz: | ||
− | echo 532500000 > /usr/speed | + | # echo 532500000 > /usr/speed |
+ | # cat /usr/speed > /sys/devices/platform/lf1000-gpio/cpu_freq_in_hz | ||
− | + | == Permanent == | |
+ | Once you have tested your overclock, and are sure that it is stable, and you haven't made any typos. You can make the change permanent. | ||
− | + | There is a line in /etc/init.d/rcS that checks for /flags/cpu_freq_in_hz, and automatically copies the contents to /sys/devices/platform/lf1000-gpio/cpu_freq_in_hz | |
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− | There is a line in /etc/init.d/rcS that checks for /flags/cpu_freq_in_hz, and automatically copies the contents to /sys/devices/platform/lf1000-gpio/cpu_freq_in_hz | ||
It is important that you test your chosen cpu frequency first using the procedure in section 1, or you might be left with an unbootable device. | It is important that you test your chosen cpu frequency first using the procedure in section 1, or you might be left with an unbootable device. | ||
− | echo 532500000 > /flags/cpu_freq_in_hz | + | # echo 532500000 > /flags/cpu_freq_in_hz |
Now just reboot, and your Leapster Explorer will automatically boot at the faster speed. Again, '''this is dangerous''', so test it first with the above method. I cannot stress this enough. | Now just reboot, and your Leapster Explorer will automatically boot at the faster speed. Again, '''this is dangerous''', so test it first with the above method. I cannot stress this enough. | ||
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At 164MHz the display went blank, and serial port stopped responding. | At 164MHz the display went blank, and serial port stopped responding. | ||
At 600MHz a kernel panic occurred. | At 600MHz a kernel panic occurred. | ||
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+ | [[Category:Leapster Explorer]] | ||
+ | [[Category:LeapFrog Pollux Platform]] |
Latest revision as of 15:33, 23 July 2011
Summary
This tutorial shows you how to overclock or underclock your Leapster Explorer.
Hardware Needed
Temporarily
To set the CPU Frequency run this command, example is 532.5mhz:
# echo 532500000 > /usr/speed # cat /usr/speed > /sys/devices/platform/lf1000-gpio/cpu_freq_in_hz
Permanent
Once you have tested your overclock, and are sure that it is stable, and you haven't made any typos. You can make the change permanent.
There is a line in /etc/init.d/rcS that checks for /flags/cpu_freq_in_hz, and automatically copies the contents to /sys/devices/platform/lf1000-gpio/cpu_freq_in_hz
It is important that you test your chosen cpu frequency first using the procedure in section 1, or you might be left with an unbootable device.
# echo 532500000 > /flags/cpu_freq_in_hz
Now just reboot, and your Leapster Explorer will automatically boot at the faster speed. Again, this is dangerous, so test it first with the above method. I cannot stress this enough.
Test Results
GrizzlyAdams was able to get his to run at any arbitrary speed between 180MHz and 580Mhz. At 164MHz the display went blank, and serial port stopped responding. At 600MHz a kernel panic occurred.