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fpga/cfplayer/cfplayer.git
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CompactFlash audio player
H. Peter Anvin
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*
We apparently need up to 6 extra bits?
HEAD
cfplayer-4
origin
master
H. Peter Anvin
2007-01-30
2
-16
/
+23
*
Add project file; 3.3 V LVCMOS for the audio output (symmetric drive!!)
H. Peter Anvin
2007-01-30
2
-0
/
+329
*
Switch to signed numbers inside the DAC (easier to verify in a
H. Peter Anvin
2007-01-30
2
-14
/
+12
*
No need to hold off unless the FIFO really is >= (size-sector); the
H. Peter Anvin
2007-01-28
3
-6
/
+6
*
Make resettable
H. Peter Anvin
2007-01-28
1
-32
/
+42
*
Don't start unless the CF card is ready...
H. Peter Anvin
2007-01-28
1
-2
/
+2
*
Two instances of sound for two channels...
H. Peter Anvin
2007-01-28
1
-10
/
+12
*
Second-order delta-sigma DAC; each instance serves once channel (duh!)
H. Peter Anvin
2007-01-28
2
-73
/
+38
*
Second-order delta-sigma DAC; clock at 100 MHz due to the more complex
H. Peter Anvin
2007-01-28
5
-312
/
+446
*
Do stereo sound
H. Peter Anvin
2007-01-27
9
-599
/
+797
*
Latch WAIT# in one place, and add an additional cycle to the minimum
cfplayer-3
H. Peter Anvin
2004-09-23
10
-228
/
+486
*
Use a 16-bit delta-sigma converter instead of PDM, even though it
H. Peter Anvin
2003-08-29
3
-26
/
+63
*
CompactFlash -> sound player
H. Peter Anvin
2003-07-10
18
-0
/
+1716