クリティカルな問題
The two RapidIO II IP core input clocks, sys_clk
and tx_pll_refclk
,
must derive from a common clock source. If your design does not
enforce this constraint, the IP core may experience FIFO underflow
or overflow. However, the RapidIO II MegaCore Function User Guide
does not document this constraint.
To avoid this issue, ensure that your Avalon system clock, sys_clk
,
and TX PLL reference clock, tx_pll_refclk
, derive from
a common clock source.
この問題は RapidIO のバージョン 14.0 で修正されています。 II MegaCore ファンクション・ユーザーガイド