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HDK-SM720E00-1V0 / 20230510 / qizhi_tian 

1. Initial Version

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HDK-SM720E00-1V1 / 20231122 / qizhi_tian  

1. SCH 1V1
    1.1 Update capacitance value of C45&C49 from 1uf to 1nf.
2. BOM1V1
    2.1 Update capacitance value of C45&C49 from 1uf to 1nf.

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HDK-SM720E00-2V0 / 20240311 / qizhi_tian  

1. SCH 2V0
    1.1 Change the 470uf electrolytic capacitors of audio PA to two 100uf ceramic capacitors.
    1.2 Connect SDA & SCL of audio PA to PA17 & PA18.
    1.3 Update the footprint of OSPI interface.
2. BOM2V0
    2.1 Update the capacitance of C51&C50 (Change the 470uf electrolytic capacitors to two 100uf ceramic capacitors).
    2.2 Update the OSPI interface CON1
3. Pcb2V0
    3.1 Update the pcb based on sch's update content. 

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HDK-SM720E00-2V1 / 20240812 / qizhi_tian  

1. SCH 2V1
    1.1 Update the symbol of MOSFET Q1.

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HDK-SM720E00-3V0 / 20250228 / qizhi_tian  

1. SCH 3V0
    1.1 Connect SDA & SCL of audio PA from PA17 & PA18 to PA27 & PA26.
    1.2 Add I2S signal (I2S_MCLK/APA_SDA/APA_SCL) colay resissters for QFN48 module.
2. BOM3V0
    2.1 Same as BOM-2V0.
3. Pcb3V0
    3.1 Update the pcb based on sch's update content.

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HDK-SM720E00-3V1 / 20250428 / qizhi_tian  

1. Updated the silk screen of version number.

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