nec单片机内部flash模拟eeprom，挺实用的，用nec/瑞萨单片机的朋友可以看一看。-nec microcontroller internal flash analog eeprom, very practical, with nec/the Renesas microcontroller friend can take a look at.

介绍了将内部Flash模拟成EEPROM进行读写的教程-Introduced into the internal Flash EEPROM read and write simulation tutorial