Posted on January 16, 2012 at 13:38Hi All
I am wondering about the USB FS device defines below:
typedef union _USB_OTG_DIEPINTn_TypeDef
{
uint32_t d32;
struct
{
uint32_t xfercompl :
1;
uint32_t epdisabled :
1;
uint32_t ahberr :
1;
uint32_t timeout :
1;
uint32_t intktxfemp :
1;
uint32_t intknepmis :
1;
uint32_t inepnakeff :
1;
uint32_t emptyintr :
1;
uint32_t txfifoundrn :
1;
uint32_t Reserved08_31 :
23;
}
b;
} USB_OTG_DIEPINTn_TypeDef ;
Checking the data sheets for the various parts I don't see any emptyintr or txfifoundrn bits (also no ahberr bit). These positions are all marked as reserved.
Reserved08_31 should be Reserved09_31 but this is not important.
Checking some example ST code, the txfifoundrn bit is in fact set during the USB device initialisation. Is this of importance??
Regards
Mark
#usb
