时序有问题。DDRIP中提示时序有问题，本工程中带有PICe模块，PICe的IP中也提示时序问题，其他地方没有时序问题。也可能是板卡用了很久，DDR一直没出现过初始化失败的问题，说明硬件应该没有问题。
1. Check the Hardware manager DQS gate status error. DQS gate status: FAIL: Underflow of the coarse taps used for tracking. Error found on Rank1, Byte4 2. Apply the patch in (Xilinx Answer 73068). Applied the patch provided by (Xilinx Answer 73068) in Vivado 2019.2 but the issue was...
(Answer 000036837) Versal Soft DDR4 Memory Controller - Stuck at DQS_GATE_CAL Stage of Calibration 2024.1 2024.2 (Answer 000037126) Versal Soft DDR4 Memory Controller - Calibration Failures and Functional Errors with Vivado 2024.2 2024.2 TBD Version History 03/18/2021 - Initial Release 06/08/2021...
DDR3 and JEDEC DDR4 SDRAMs, supports a range of DDR3 DRAM speeds from 666Mbps to 2133Mbps and DDR4 DRAM speeds from 1866Mbps to 2400Mbps, and target support x16 DDR3/DDR4 SDRAM components, the design include an analog hard macro (CLK/CMD/ADDR/DQ/DQS) and a synthesizable digi...
Figure 1. Skew accumulates when reading a DDR3 module. This skew between CLK and DQS signals in DDR3 is compensated with write leveling. Additional elements that come into play include theglass weave of the laminate, the all-importantPCB stackup, and the inductance of vias. John says, “Th...
[1 5:0]sd_ba[3:0]sd_cs_n[7:0]sd_dq[n-1 :0]sd_dm[n/8-1 :0]sd_dqs[n/8-1 :0]sd_dqs_n[n/8-1 :0]sd_clk_out_p[m-1 :0]sd_clk_out_n[m-1 :0]dfi_reset_nsd_reset_nClockSynthesisModule1 xphy clocksASIC/ Structured ASIC PHYMulti-Burst(optional)dfi_rddata_validsd...
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时序有问题。DDRIP中提示时序有问题，本工程中带有PICe模块，PICe的IP中也提示时序问题，其他地方没有时序问题。也可能是板卡用了很久，DDR一直没出现过初始化失败的问题，说明硬件应该没有问题。