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c6747 /omapL138需要1.2V的晶振，五元晶振可以，但我想用有源晶振，但1.2V的有源晶振太难找了，如果我用3.3V的晶振，然后用电阻分压 这样可以吗？谢谢了！！ 还有别的方法吗？
还有就是如果我只用3.3V的 IO，omapL138的DVDD1V8 引脚必须接吗？谢谢！！！
1. 用电阻分压可以，用150ohm左右的电阻。
2. omapL138的DVDD1V8 引脚必须接.
