Posted on June 28, 2018 at 09:47Hello! I started working with
http://mikrocontroller.bplaced.net/wordpress/?page_id=383
. Apparently there are errors in it, since I can not connect to USB-Flash yet. I adapted this project
STM32F105RCT6 microcontroller and corrected some mistakes, but now the program is stopped in an infinite loop in
stm32_ub_usb_msc_host.c file:
USB_MSC_HOST_STATUS_t UB_USB_MSC_HOST_Do (void)
{ if (USB_MSC_HOST_STATUS! = USB_MSC_DEV_NOT_SUPPORTED) {
// when the USB stick is not supported, // function will not be called USBH_Process (& USB_OTG_Core, & USB_Host); } return (USB_MSC_HOST_STATUS);}In USBH_Process () function, the program waits for interrupt vector OTG_FS_IRQHandler. To convert the USB_MSC_HOST_STATUS variable to the USB_MSC_DEV_CONNECTED state. But there is no interruption. What could be the reason?
I placed main part of my project in
https://github.com/antonkiryukhin/USB-OTG-MSC-HOST
on Github.
I would also like to clarify that the waiting for an interrupt occurs in this function, allocated to the bold font place.
void USBH_Process (USB_OTG_CORE_HANDLE * pdev, USBH_HOST * phost)
{
volatile USBH_Status status = USBH_FAIL;
switch (phost-> gState)
{
case HOST_ISSUE_CORE_RESET
if (HCD_ResetPort (pdev) == 0)
{
phost-> gState = HOST_IDLE;
}
break;
case HOST_IDLE:
if (HCD_IsDeviceConnected (pdev)) { / * Wait for USB Connect Interrupt void USBH_ISR_Connected (void) * / USBH_DeAllocate_AllChannel (pdev); phost-> gState = HOST_DEV_ATTACHED; } break;
