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Other Parts Discussed in Thread: SYSBIOS
omapl138 ARM端在SYSBIOS下使能MMU后无法访问外设.比如使能MMU后串口就无法配置和使用.请问是有什么配置没有设好吗?禁用MMU就正常.
你好,我这样配置了.就是我只想share ram的内存被cache.实际上,DDR的内存也被cache了.
for (index = 0; index < (4*1024); index++) { if(index == 0x800) { pageTable[index] = (uiIdx << 20) | 0x00000C1E; } else { pageTable[index] = (uiIdx << 20) | 0x00000C12; } } CP15TtbSet((unsigned int )pageTable);
