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![](https://box.kancloud.cn/077c7cac1391ed6e2d26dd23e16cc280_478x403.png) * Note 1 : The encryption is optional,MCU also can be used normally without being encrypted.If you cancel the /CP option of the configuration word before writing,the program area will encrypt automatically after finishing writing and verifying;if cancel the /CPD option the data area will encrypt automatically after finishing writing and verifying. Like the following picture,first set and then write: ![](https://box.kancloud.cn/7f891213ccd238652f0c7327bebd3509_478x220.png) * Note 2 : If RT809F software hints that the program or data is encrypted after reading,then it is no need to save to be a file,not even write it into another chip. ![](https://box.kancloud.cn/a5a128abb6e4cbb98ab5f371aac13df4_319x124.png) * Refer to 93 chip to save and open the file.