Netra芯片计算DDR3线路补偿值时,计算值不能收敛,提示:
===== Searching =====
RD DQS GATE RATIO MAXIMUM VALUE DIDN'T CONVERGE
RD DQS GATE RATIO MINIMUM VALUE DIDN'T CONVERGE
===== Searching RD DQS ===== RD DQS RATIO MAXIMUM VALUE DIDN'T CONVERGE
RD DQS RATIO MINIMUM DIDN'T CONVERGE
===== Searching WR DQS =====
WR DQS RATIO MAXIMUM VALUE DIDN'T CONVERGE
WR DQS RATIO MINIMUM VALUE DIDN'T CONVERGE
===== END OF TEST =====
请问什么原因可能导致此问题,谢谢
Tony Tang:
首先请确认操作是事完全按照wiki上的步骤:包括频率设置,走线长度等。
然后再确认一下硬件连线是否有问题。
最后就是焊接的问题了。
请问做了几块板?是否都有相同的问题?