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FILE SYSTEM WITH USB HOST FAILS WITH STM32F107

sami assaad

Hello I have been debugging for one week and it drives me crazy ;
I am using the file system library ; I could make it work ok with SD card but now my problem is a usb host

the only diffirent of my board from MCBSTM32C is that power control is GPIOB.15

I have changed that in the code of the MSD_file example and i can control the host power

but the problem that the software always turn back that the device is not connected .

after debugging I noticed that usbh_msc_status(0, 0) always retun false ; I am using 4GB USB flash .

my program is just to create a TXT file inside the usb flash ; I am afraid it is a library bug ; so anyone has this problem before?

Thank you in advanced

Regards
Sami

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  • 0 in reply to while ();

    wild,

    Thank you for your repply. I'm using the same pin config and the original MCBSTM32C example. My remark is: why USBH_STM32_Port_Power() function is called by Keil's library, but USBH_STM32_Pins_Config() isn't? It's never called. This is insane. And why USBH_STM32_Init() is called several times? It seems that there's something wrong with usbh0_hcd functions. If I change to ST's USB host library I can read the attached pendrive. So, I think hardware is ok.

    Regards,

    Paulo

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  • 0 in reply to while ();

    wild,

    Thank you for your repply. I'm using the same pin config and the original MCBSTM32C example. My remark is: why USBH_STM32_Port_Power() function is called by Keil's library, but USBH_STM32_Pins_Config() isn't? It's never called. This is insane. And why USBH_STM32_Init() is called several times? It seems that there's something wrong with usbh0_hcd functions. If I change to ST's USB host library I can read the attached pendrive. So, I think hardware is ok.

    Regards,

    Paulo

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