Redesign a schematic (MP3)
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‎2024-05-04 9:39 PM - last edited on ‎2024-06-11 7:59 AM by Amel NASRI
Hi,
I need to modify this schematic, I want to use one USB connection connected to an STM32.
- When the STM32 is on Bootloader mode, A virtual com port will be open and I should have an option to save a mp3 file inside the external flash (GD25P32)
- When the STM32 is on App mode, I should be able to play some audio.
Is this possible? (Right now on this schematic the USB is connected to the WT2003 chip)
https://cdn.sparkfun.com/assets/7/c/0/c/6/WT2003S-16S_Chip_V1.03.pdf
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‎2024-05-05 12:08 AM - edited ‎2024-05-05 3:36 AM
You can do whatever you code for. You can make it appear as a CDC or MSC, or both..
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‎2024-05-05 1:50 AM
Hi,
why not use the "standard mp3 module" , that can play mp3 ... ?
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‎2024-05-05 6:26 AM
I don't want to use a uSD to store my file.... I prefer to use a external flash
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‎2024-05-05 6:27 AM
Do I need to configure the STM32 with 2xUSB or just 1xUSB (Can I use the same pin) or for every application (CDC, MSC) I need different pin?
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‎2024-05-05 7:17 AM
1xUSB Composite Device
Like the ST-LINK/V2-1 which provides 3x device
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‎2024-05-05 7:43 AM
Just to make sure I should configure the stm32 as 1x host MSC and 1x device CDC
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‎2024-05-05 7:47 AM
So take a module with flash... :)
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