Hello,
I am trying to simplify and linearize USB hot functionality for specific task. USB Host example (http://www.st.com/internet/com/SOFTWARE … st_lib.zip -USBH_HID_KBrd_Mouse) in IAR works perfectly with STM32F107 MCU. I traced some commands and put them step by step. Somehow I receive no data from USB device.
Mine C code looks like this:
uint8_t speed = HCD_GetCurrentSpeed(&USB_OTG_FS_dev); // dummy read
USB_OTG_BSP_uDelay(5000);
USBH_Open_Channel(&USB_OTG_FS_dev, 1, 0, 2, 0, 0x40);
USB_OTG_BSP_uDelay(5000);
USBH_Open_Channel(&USB_OTG_FS_dev, 0, 0, 2, 0, 0x40);
USB_OTG_BSP_uDelay(5000);
USBH_Get_DevDesc(&USB_OTG_FS_dev, &dev_desc, 8) ;
USB_OTG_BSP_uDelay(5000);
USBH_CtlSendSetup(&USB_OTG_FS_dev, buff2, 0);
USB_OTG_BSP_uDelay(5000);
USBH_CtlReceiveData(&USB_OTG_FS_dev, buff, 8, 1);
USB_OTG_BSP_uDelay(5000);
HCD_GetCurrentFrame(&USB_OTG_FS_dev);
USB_OTG_BSP_uDelay(5000);
HCD_GetCurrentFrame(&USB_OTG_FS_dev);
USB_OTG_BSP_uDelay(5000);
HCD_GetCurrentFrame(&USB_OTG_FS_dev);
USB_OTG_BSP_uDelay(5000);
USBH_CtlSendData(&USB_OTG_FS_dev, buff, 0, 0);
USB_OTG_BSP_uDelay(5000);
USBH_Get_DevDesc(&USB_OTG_FS_dev, &dev_desc, 8);
I have inserted some debug information in (1)usbh_hcs.c (2)usbh_stdreq.c (3)usbh_ioreq.c (4)usb_regs.c (5)usb_core.c files. Here is debug output port from my code:
-1- USBH_Alloc_Channel (00)
-1- HC_GetFreeChannel
-1- USBH_Alloc_Channel (80)
-1- HC_GetFreeChannel
-4- USB_OTG_USBH_handle_port_ISR
-4- USB_OTG_USBH_handle_port_ISR
-4- USB_OTG_USBH_handle_port_ISR
-4- USB_OTG_USBH_handle_port_ISR
-1- USBH_Open_Channel (num=1, dev.adr=0, spd=2, ep.t=0, mps=40)
-1- USBH_Open_Channel (num=0, dev.adr=0, spd=2, ep.t=0, mps=40)
-3- CtlReq (8) 80 06 00 01 00 00 08 === 00 00 00 00 00 00 00 00 S=1
-3- CtlSendSetup[0] 80 06 00 01 00 00 08 00
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-3- CtlReceiveData[1] 00 00 00 00 00 00 00 00
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-3- CtlSendData[0]
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-3- CtlReq (8) 80 06 00 01 00 00 08 === 00 00 00 00 00 00 00 00 S=0
And there is debug from original example:
-1- USBH_Alloc_Channel (00)
-1- HC_GetFreeChannel
-1- USBH_Alloc_Channel (80)
-1- HC_GetFreeChannel
-4- USB_OTG_USBH_handle_port_ISR
-4- USB_OTG_USBH_handle_port_ISR
-4- USB_OTG_USBH_handle_port_ISR
-4- USB_OTG_USBH_handle_port_ISR
-1- USBH_Open_Channel (num=1, dev.adr=0, spd=2, ep.t=0, mps=40)
-1- USBH_Open_Channel (num=0, dev.adr=0, spd=2, ep.t=0, mps=40)
-3- CtlReq (8) 80 06 00 01 00 00 08 === 00 00 00 00 00 00 00 00 S=1
-3- CtlSendSetup[0] 80 06 00 01 00 00 08 00
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-3- CtlReceiveData[1] 00 00 00 00 00 00 00 00
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-3- CtlSendData[0]
-4- USB_OTG_USBH_handle_hc_ISR
-4- USB_OTG_USBH_handle_hc_ISR
-3- CtlReq (8) 80 06 00 01 00 00 08 === 12 01 10 01 00 00 00 08 S=0
<...>
Hardware USB logger shows that there is no difference in USB communication. See screenshots:
http://lukse.lt/failai/2011-05-27/usb_data_modif.png
http://lukse.lt/failai/2011-05-27/usb_data_original.png
Could somebody advise why I receive no data in my application? What else should I debug?
