ST USB Host releases - Generic Driver;

marceldanilo · ‎2012-07-03

Posted on July 04, 2012 at 00:57

Hello everyone!

I have been reading about the USB Host capability of STM32F4 family;

According I have read, the libraries are limited to attach HID and MSC devices; The drivers are developed just for these classes;

Will the ST release some Generic Driver and tools like Microchip has?

[

http://ww1.microchip.com/downloads/en/AppNotes/01143a.pdf

]

I need to connect a USB custom device (that embed an Arm9) to a STM32F4;

Any info will be welcomed.

Tesla DeLorean · ‎2012-07-03

Posted on July 04, 2012 at 01:40

The libraries come with examples, these are instructive and layered, they do not stretch the limits of the USB, merely illustrate some common examples.

Prior thread on this topic

[DEAD LINK /public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/USB OTG for custom an USB device&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&TopicsView=https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/AllItems.aspx?Paged%3DTRUE%26p_StickyPost%3D%26p_DiscussionLastUpdated%3D20120628%252003%253a22%253a38%26p_ID%3D23204%26View%3D%257bF47A9ED8%252dE726%252d42BE%252dACED%252d732F13B66581%257d%26FolderCTID%3D0x012001%26PageFirstRow%3D41&currentviews=212]https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fcortex%5fmx%5fstm32%2fUSB%20OTG%20for%20custom%20an%20USB%20device&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&TopicsView=https%3A%2F%2Fmy%2Est%2Ecom%2Fpublic%2FSTe2ecommunities%2Fmcu%2FLists%2Fcortex%5Fmx%5Fstm32%2FAllItems%2Easpx%3FPaged%3DTRUE%26p%5FStickyPost%3D%26p%5FDiscussionLastUpdated%3D20120628%252003%253a22%253a38%26p%5FID%3D23204%26View%3D%257bF47A9ED8%252dE726%252d42BE%252dACED%252d732F13B66581%257d%26FolderCTID%3D0x012001%26PageFirstRow%3D41¤tviews=212

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alok472 · ‎2012-07-03

Posted on July 04, 2012 at 03:24

my suggestion is to start from Mass-storage example. The Core / Enumeration remains the same for all usb devices.

since yours is vendor specific implementation, you need to check if there are any class-specific request. you need to hook these. Normally there shouldnt be any.

use BulkSendData and ReceiveData functions available to make your implementation.

marceldanilo · ‎2012-07-30

Posted on July 31, 2012 at 05:39

Recently I have modified the MSC library to accept my device as a MSC device; So the STMF4 did the complete enumeration;
Second what I watched on a USB sniffer, after the device is ready, just Bulk transfers are performed; Tsuneo recommended this analisys, at [DEAD LINK /public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/USB OTG for custom an USB device&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&TopicsView=https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/AllItems.aspx?Paged%3DTRUE%26p_StickyPost%3D%26p_DiscussionLastUpdated%3D20120628%252003%253a22%253a38%26p_ID%3D23204%26View%3D%257bF47A9ED8%252dE726%252d42BE%252dACED%252d732F13B66581%257d%26FolderCTID%3D0x012001%26PageFirstRow%3D41&currentviews=212]this post;
The device has two endpoint bulk - like MSC devices;

Using BulkSendData I get a packet in the device side - I think it worked fine;

Using BulkReceiveData it doesn't work - However I have no ideia why the error occours. When I stop the degug, the program stop on interrupts routines, at the usb_hcd_int.c file. Is the host expecting something from the device? Can't the device response the host? I'm investigating about this currently.

If someone has some idea, please help me.

Thank you clive1/alokm!

abelloni · ‎2013-12-15

Posted on December 15, 2013 at 16:43