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authorIan Buckley <ianb@server2.ionconcepts.com>2010-09-30 15:54:03 -0700
committerIan Buckley <ianb@server2.ionconcepts.com>2010-09-30 15:54:03 -0700
commit1c3dfe21f8bacbf762b440a23ce652a879288615 (patch)
treede38fdff2848091a8c2c0ac1ab201a679c5e14d6 /usrp1/sdr_lib/ram.v
parent7ffe28ccc6059ae3caa500e35b76718ae6ff100a (diff)
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Modified phase shift of DCM1 to -64 which is intended to give more timing margin on reads from the SRAM at the expense of Writes to the SRAM.
Tested to be at least as stable as a phase shift of 12 and beter looking timing on the logic analyzer. Signals driven by the FPGA are observed changing on the SRAM pins about 4 nS after the rising edge of the RAM clock.
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