高云FPGA使用过程中端口复用设置
使用芯片:GW2AR-18C;
编译环境:高云Version:1.9.8;
在移植FPGA程序过程中,由于使用了SSPI专用管脚,所以在把专用管脚当做普通IO的时候,就会报错,说当前管脚不支持;
ERROR (PR2028) : The constrainted location is useless in current package
ERROR (PR2017) : 'LVDS5_RX1_i' cannot be placed according to constraint, for the location is a dedicated pin (SSPI)
ERROR (PR2028) : The constrainted location is useless in current package
ERROR (PR2017) : 'LVDS6_RX2_i' cannot be placed according to constraint, for the location is a dedicated pin (SSPI)
ERROR (PR2028) : The constrainted location is useless in current package
ERROR (PR2017) : 'LVDS6_RX1_i' cannot be placed according to constraint, for the location is a dedicated pin (SSPI)
ERROR (PR2028) : The constrainted location is useless in current package
ERROR (PR2017) : 'LVDS3_RX2_i' cannot be placed according to constraint, for the location is a dedicated pin (SSPI)
在之前使用Quartus的Cyclone芯片的时候,里面有一个管脚复用的设置,那么高云的FPGA应该也有这个功能。
仔细查看GOWIN FPGA Designer软件的各功能,终于找到了;
第一步:在GoWin软件中点击:Project,然后选择Configuration;
第二步:选择左边的Dual-Purpose Pin;然后在右边选择Use SSPI as regular IO;然后点击OK即可;文章来源:https://www.toymoban.com/news/detail-729949.html
第三步:重新编译程序即可;文章来源地址https://www.toymoban.com/news/detail-729949.html
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