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GPS_ClearInfoInFlash() fails multiple times

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## 1. SDK version (SDK 版本） { SDK version 2129 GPRS: Ai-Thinker_A9_A9G_AT_V02.02.20190915R.afw GPS : GK9501_Release_GB_1.4.20180224.bin } --- ## 2. In what kind of operation problems appear, and how to reproduce...

Play MP3 file from TF or Internal Flash?

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## 1. SDK version（SDK 版本） { GPRS_C_SDK_v2129 } --- ## 2. In what kind of operation problems appear, and how to reproduce the problem ?（什么样的操作步骤问题会出现，是否是稳定复现，如何复现问题？） { Using: https://github.com/Ai-Thinker-Open/GPRS_C_SDK/tree/master/demo/audio music.mp3 is...

File management with internal flash and tf card

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## 1. SDK version（SDK 版本） { GPRS_C_SDK_v2129 } --- ## 2. In what kind of operation problems appear, and how to reproduce the problem ?（什么样的操作步骤问题会出现，是否是稳定复现，如何复现问题？） { https://github.com/Ai-Thinker-Open/GPRS_C_SDK/blob/master/demo/fs/ } --- How...