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OMAP L138主频的问题



您好,我想问下关于OMAP L138主频的问题

arm主频最高能到456MHz,但是内存DDR2 支持范围是125MHz~156MHz

而且:“PLLC0 for PLL0_SYSCLK1/PLL0_SYSCLK6, PLL0_SYSCLK2, and PLL0_SYSCLK4 can be changed for power savings, but the device must maintain the 1:2:4 clock ratios between the clock domains.” 按这个1:2:4分频,内存PLL0_SYSCLK2,那么是不是arm主频最高只能是312MHz?

第一会自己来设计,小白问题,就是自己有些想不通