USB HID on STM32 CL and MD

[mpachock]

Posted on July 15, 2011 at 15:31

Hello,

I'm stucked at programming a USB. Based on ST USB Library and sample project (Custom HID) i've created an program that send to PC data in report of size 10 bytes. So i changed an description of usb (in usb_desc.c) lines (101, 112 and 226 line) commented as: /*     REPORT_SIZE             */ and /* wMaxPacketSize*/ On STM Eval B it's works fine. I have bigger packet size, but when i recompile code and run it on STM Eval C with STM32F107 my packet are still 2 bytes length as in example. Could anyone can help me? Maybe provide USB HID code for a CL processors? best regards Micha? #usb-stm32cl-hid

[ColdWeather]

Posted on July 18, 2011 at 11:36

Take care of many conditional defines regarding CL line in the application part of the USB library. I suppose, you have changed the defines that are in effect for MD line only. My suggestion is, place #warning ''your text'' in the #ifdef...#else..#endif sections to monitor, what section is being compiled.

[tsuneo]

Posted on July 18, 2011 at 21:56

> with STM32F107 my packet are still 2 bytes length as in example.

Did you replace these ''2''s into 10 (or 11, including report ID) at the last argument of OTG_DEV_EP_Init()? The last argument tells wMaxPacketSize of the EP to the USB engine. usb_prop.c void CustomHID_Reset(void) {   /* Set Joystick_DEVICE as not configured */   pInformation->Current_Configuration = 0;   pInformation->Current_Interface = 0;/*the default Interface*/     /* Current Feature initialization */   pInformation->Current_Feature = CustomHID_ConfigDescriptor[7];   #ifdef STM32F10X_CL     /* EP0 is already configured in DFU_Init() by USB_SIL_Init() function */     /* Init EP1 IN as Interrupt endpoint */   OTG_DEV_EP_Init(EP1_IN, OTG_DEV_EP_TYPE_INT, 2);   //<------     /* Init EP1 OUT as Interrupt endpoint */   OTG_DEV_EP_Init(EP1_OUT, OTG_DEV_EP_TYPE_INT, 2);   //<------ #else   ... Tsuneo

[mpachock]

Posted on July 19, 2011 at 17:53

Yes, that works. Thanks.