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dvisampler: transfer the last word in frames correctly

This commit is contained in:
Sebastien Bourdeauducq 2013-11-19 23:38:48 +01:00
parent f62615054d
commit 2eabf97147
1 changed files with 9 additions and 3 deletions
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12
misoclib/dvisampler/analysis.py
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@ -141,11 +141,13 @@ class FrameExtraction(Module, AutoCSR):
self.sync.pix += [
cur_word_valid.eq(0),
If(new_frame,
pack_counter.eq(0)
cur_word_valid.eq(pack_counter == (pack_factor - 1)),
pack_counter.eq(0),
).Elif(self.valid_i & self.de,
[If(pack_counter == (pack_factor-i-1),
cur_word[24*i:24*(i+1)].eq(encoded_pixel)) for i in range(pack_factor)],
Cat(pack_counter, cur_word_valid).eq(pack_counter + 1)
cur_word_valid.eq(pack_counter == (pack_factor - 1)),
pack_counter.eq(pack_counter + 1)
)
]
@ -157,7 +159,11 @@ class FrameExtraction(Module, AutoCSR):
fifo.din.pixels.eq(cur_word),
fifo.we.eq(cur_word_valid)
]
self.sync.pix += If(new_frame, fifo.din.parity.eq(~fifo.din.parity))
new_frame_r = Signal()
self.sync.pix += [
If(new_frame_r, fifo.din.parity.eq(~fifo.din.parity)),
new_frame_r.eq(new_frame)
]
self.comb += [
self.frame.stb.eq(fifo.readable),
self.frame.payload.eq(fifo.dout),