Difference between revisions of "Leapster Explorer: Over Clock"

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(Created page with 'It is very simple to overclock your explorer Lets say you want to boost the speed up to 532.5mhz? cd /usr vi speed now type the fallowing in the new file ( press i to insert…')
 
 
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It is very simple to overclock your explorer
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== Summary ==
 +
This tutorial shows you how to overclock or underclock your Leapster Explorer.
  
Lets say you want to boost the speed up to 532.5mhz?
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== Hardware Needed ==
 +
[[LeapFrog_Pollux_Platform:_Console_Access| Console Access]]
  
cd /usr
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== Temporarily ==
vi speed
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To set the CPU Frequency run this command, example is 532.5mhz:
  
now type the fallowing in the new file ( press i to insert)
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  # echo 532500000 > /usr/speed
   
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  # cat /usr/speed > /sys/devices/platform/lf1000-gpio/cpu_freq_in_hz
  532500000
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now press the Escape key and type :x
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== Permanent  ==
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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.
  
to speed up your system it is as easy as typing the fallowing
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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
  
cat /usr/speed > /sys/devices/platform/lf1000-gpio/cpu_freq_in_hz
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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.
  
enjoy
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# echo 532500000 > /flags/cpu_freq_in_hz
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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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== 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.
 +
 
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[[Category:Leapster Explorer]]
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[[Category:LeapFrog Pollux Platform]]

Latest revision as of 22:33, 23 July 2011

Summary

This tutorial shows you how to overclock or underclock your Leapster Explorer.

Hardware Needed

Console Access

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.