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UberDDR3
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run @ 100MHz with yosys

This commit is contained in:
AngeloJacobo 2025-12-31 14:39:16 +08:00
parent 407c1a8115
commit ad50f79695
3 changed files with 9 additions and 7 deletions
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6
example_demo/arty_s7/arty_ddr3.v
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@ -180,14 +180,16 @@
.COL_BITS(10), //width of column address
.BA_BITS(3), //width of bank address
.BYTE_LANES(2), //number of DDR3 modules to be controlled
.AUX_WIDTH(16), //width of aux line (must be >= 4)
.AUX_WIDTH(4), //width of aux line (must be >= 4)
.WB2_ADDR_BITS(32), //width of 2nd wishbone address bus
.WB2_DATA_BITS(32), //width of 2nd wishbone data bus
.MICRON_SIM(0), //enable faster simulation for micron ddr3 model (shorten POWER_ON_RESET_HIGH and INITIAL_CKE_LOW)
.ODELAY_SUPPORTED(0), //set to 1 when ODELAYE2 is supported
.SECOND_WISHBONE(0), //set to 1 if 2nd wishbone is needed
.ECC_ENABLE(0), // set to 1 or 2 to add ECC (1 = Side-band ECC per burst, 2 = Side-band ECC per 8 bursts , 3 = Inline ECC )
.WB_ERROR(0) // set to 1 to support Wishbone error (asserts at ECC double bit error)
.WB_ERROR(0), // set to 1 to support Wishbone error (asserts at ECC double bit error)
.BIST_MODE(1), // 0 = No BIST, 1 = run through all address space ONCE , 2 = run through all address space for every test (burst w/r, random w/r, alternating r/w)
.SPEED_BIN(1) // 0 = Use top-level parameters , 1 = DDR3-1066 (7-7-7) , 2 = DR3-1333 (9-9-9) , 3 = DDR3-1600 (11-11-11)
) ddr3_top
(
//clock and reset

BIN
example_demo/arty_s7/arty_ddr3_openxc7.bit
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10
example_demo/arty_s7/clk_wiz.v
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@ -22,18 +22,18 @@ module clk_wiz
.COMPENSATION ("INTERNAL"),
.STARTUP_WAIT ("FALSE"),
.DIVCLK_DIVIDE (1),
.CLKFBOUT_MULT (10), // 100 MHz * 10 = 1000 MHz
.CLKFBOUT_MULT (12), // 100 MHz * 12 = 1200 MHz
.CLKFBOUT_PHASE (0.000),
.CLKOUT0_DIVIDE (12), // 1000 MHz / 12 = 83.333 MHz
.CLKOUT0_DIVIDE (12), // 1200 MHz / 12 = 100 MHz
.CLKOUT0_PHASE (0.000),
.CLKOUT0_DUTY_CYCLE (0.500),
.CLKOUT1_DIVIDE (3), // 1000 MHz / 3 = 333.333 MHz
.CLKOUT1_DIVIDE (3), // 1200 MHz / 3 = 400 MHz
.CLKOUT1_PHASE (0.000),
.CLKOUT1_DUTY_CYCLE (0.500),
.CLKOUT2_DIVIDE (5), // 1000 MHz / 5 = 200 MHz
.CLKOUT2_DIVIDE (6), // 1200 MHz / 6 = 200 MHz
.CLKOUT2_PHASE (0.000),
.CLKOUT2_DUTY_CYCLE (0.500),
.CLKOUT3_DIVIDE (3), // 1000 MHz / 3 = 333.333 MHz, 90 phase
.CLKOUT3_DIVIDE (3), // 1200 MHz / 3 = 400 MHz, 90 phase
.CLKOUT3_PHASE (90.000),
.CLKOUT3_DUTY_CYCLE (0.500),
.CLKIN1_PERIOD (10.000) // 100 MHz input