標題: CPLD程序求助：到fit這一步編不過去了 [打印本頁] 作者: yulanxin 時間: 2012-7-12 22:31 標題: CPLD程序求助：到fit這一步編不過去了 初學CPLD，編個接收1553B數據的小程序。前面綜合，翻譯都通過了，就是到映射過不去，編譯的結果總是報同樣的錯誤，如下：Mapping a total of 236 equation into 16 function blocks
Error:CPLD:892 Cannot place signal init_reg<1>.Consider reducing the collapsing input limit or the product term limit to prevent the fitter from creating high input and / or high product term functions.
CPLD:868 Cannot fit the design into any of the soecified devices with the selected implementation options.