如何计算eMMC大小

User Area 计算方法其实已经在规范中给出了,参考eMMC 5.0 spec里的段落。首先是: 7.3.12 C_SIZE [73:62] The C_SIZE parameter is used to compute the device capacity for devices up to2 GB of density. See 7.4.52, SEC_COUNT [215:212] , for details on calculatingdensities greater than 2 ...