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am3359的mmu和VPF使能问题



1  AM335X_StarterWare_02_00_00_07中的例程,在使能mmu时,mmuinit()和regionmap()都正常,一旦运行到MMUEnable()函数程序就飞了,这大概是什么原因,还有相应的地方在之前需要配置好吗?

2 使用ccsv5编译器,在配置项中选择VFPv3,程序编译完成后便不能正常运行,如果不选择,在程序中使能VFP寄存器时又提示因为不支持浮点所以操作违法

期待各位大大帮忙解决,谢谢