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Old 30th Sep 2009, 2:46 pm
flasher86 flasher86 is offline
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I love my MPx player
 
Join Date: Jun 2009
Posts: 174
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If someone wants to know how to increase frame rate of PCM Audio in RKP platform, you can use this code (if you dont want to digg through the forum).

Define write memory function somewhere in your header file:
Code:
#define write_mem(address, value)      (*((unsigned int volatile*)(address)) = (value))
To set a new frame rate put this AFTER calling the function MusicChannelAsk.
Default 11025Hz:
Code:
write_mem(0xF408, 0x0006);
write_mem(0xF408, 0x0055);
16000Hz:
Code:
write_mem(0xF408, 0x0006);
write_mem(0xF408, 0x0044);
22050Hz:
Code:
write_mem(0xF408, 0x0006);
write_mem(0xF408, 0x0033);
32000Hz:
Code:
write_mem(0xF408, 0x0006);
write_mem(0xF408, 0x0022);
44100Hz:
Code:
write_mem(0xF408, 0x0006);
write_mem(0xF408, 0x0011);
48000Hz: (not tested but should also work)
Code:
write_mem(0xF408, 0x0006);
write_mem(0xF408, 0x0080);
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