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STM32F407VET6 USB advice :)

russdx
Associate II
Posted on August 20, 2012 at 12:04

I have just bought a Core407V STM32F407VET6 STM32 ARM Cortex-M4 Development Board

I want to use it to send data from my pc to the STM32 around 2048bytes 60 times a second.

Im a bit confused what type of USB library i should be using HID or OTG or some other library? I basically just need bulk transfer.

Would some one be able to point me in the right direction please :)

Thank you :)

12 REPLIES 12
Posted on August 20, 2012 at 17:47

Have you tried working through the ST USB examples?

\STM32_USB-Host-Device_Lib_V2.1.0\Project\USB_Device_Examples\HID

The STM324xG-EVAL_USBD-FS uses the following options

USE_STDPERIPH_DRIVER,STM32F4XX,USE_STM324xG_EVAL,USE_USB_OTG_FS

The examples should be reasonably portable to other boards, I have the MSC and VCP working on STM32F4-Discovery boards.

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russdx
Associate II
Posted on August 20, 2012 at 18:35

Sounds great :)

May i ask where you are downloading these examples from? I could not find a download section on the stm site.

Thanks :)

Posted on August 20, 2012 at 19:12

Should be off one of the chip resource pages via ''Design Support'' tab

http://www.st.com/internet/com/SOFTWARE_RESOURCES/SW_COMPONENT/FIRMWARE/stm32_f105-07_f2_f4_usb-host-device_lib.zip

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russdx
Associate II
Posted on August 20, 2012 at 20:49

russdx
Associate II
Posted on August 20, 2012 at 20:49

russdx
Associate II
Posted on August 21, 2012 at 11:17

thanks :)

russdx
Associate II
Posted on August 26, 2012 at 15:06

I have tried the 

stm32_f105-07_f2_f4_usb-host-device_lib\STM32_USB-Host-Device_Lib_V2.1.0\Project\USB_Device_Examples\VCP

example, i replaced the LCD log outs with printfs (so i can see what is going on)

But it does not do much :(

The code seams to setup all the usb stuff but only ever calls

USBD_USR_Init

the other

USBD_USR_DeviceReset

USBD_USR_DeviceConfigured

USBD_USR_DeviceSuspended

USBD_USR_DeviceResumed

etc.. never get called

and the pc just says 'unknown device' but im pretty sure thats just because i have enabled the usb on my dev board. nothing to do with the code running on the stm.

I was kind of hoping a out of the box example would just work :( as there is so much code i have not got a clue where to look / figure out where it has gone wrong.

im using the Core407V dev board from waveshare. Is there a better dev board i can use with examples that will just work?

russdx
Associate II
Posted on August 26, 2012 at 16:16

have bought the STM32F4DISCOVERY, im guessing this is the actual board the example code was written for so hopefully i have more luck with this :)

(+ only £9.99 from RS components!!!) :)
Posted on August 26, 2012 at 20:32

The STM32F4-Discovery is not the target of the USB library, the target is the EVAL series boards the STM3240G-EVAL, etc

I have ported a number of the drivers to the STM32F4-Discovery board using GNU and Keil tool chains. Mainly the MSC and VCP, but others would be relatively straight forward.

I've posted by GNU/GCC port here

https://docs.google.com/open?id=0B7OY5pub_GfIdnREeExyRWNXbFE

I'd dig up the threads on the forum here if I could find them quickly. The on-point ones covered USB and porting to different chains, or boards.

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