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litedram
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bist: Done only goes high after bist runs.

This commit is contained in:
Tim 'mithro' Ansell 2016-12-16 16:43:20 +01:00
parent f57dfad6a4
commit e901305e56
1 changed files with 4 additions and 4 deletions
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8
litedram/frontend/bist.py
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@ -56,7 +56,7 @@ class _LiteDRAMBISTGenerator(Module):
else: else:
self.submodules.gen = gen = Counter(dram_port.dw) self.submodules.gen = gen = Counter(dram_port.dw)
shooted = Signal() self.shooted = shooted = Signal()
enable = Signal() enable = Signal()
counter = Signal(dram_port.aw) counter = Signal(dram_port.aw)
self.comb += enable.eq(shooted & (counter != (self.length - 1))) self.comb += enable.eq(shooted & (counter != (self.length - 1)))
@ -75,7 +75,7 @@ class _LiteDRAMBISTGenerator(Module):
dma.sink.data.eq(gen.o), dma.sink.data.eq(gen.o),
gen.ce.eq(enable & dma.sink.ready), gen.ce.eq(enable & dma.sink.ready),
self.done.eq(~enable) self.done.eq(~enable & shooted)
] ]
@ -138,7 +138,7 @@ class _LiteDRAMBISTChecker(Module, AutoCSR):
else: else:
self.submodules.gen = gen = Counter(dram_port.dw) self.submodules.gen = gen = Counter(dram_port.dw)
shooted = Signal() self.shooted = shooted = Signal()
address_counter = Signal(dram_port.aw) address_counter = Signal(dram_port.aw)
address_counter_ce = Signal() address_counter_ce = Signal()
data_counter = Signal(dram_port.aw) data_counter = Signal(dram_port.aw)
@ -183,7 +183,7 @@ class _LiteDRAMBISTChecker(Module, AutoCSR):
) )
self.comb += data_counter_ce.eq(dma.source.valid) self.comb += data_counter_ce.eq(dma.source.valid)
self.comb += self.done.eq(~data_enable & ~address_enable) self.comb += self.done.eq(~data_enable & ~address_enable & shooted)
class LiteDRAMBISTChecker(Module, AutoCSR): class LiteDRAMBISTChecker(Module, AutoCSR):