Hi all,
I'm trying to enable the host functionalities for USB Port1 for MP135: I imported the Host Library and implemented some functions on usbh_conf.c file. Attached to the DK board I have a optic mouse.
After some basic initialization I'm in the USBH_LL_Start() function and I have the following debug outputs:
Before USBCMD, USB_STS, USBINTR, PORTSC1 set:
USBH_LL_Start usbcmd: 0x00080B00; usbsts: 0x00001000
PORTSC1: x00002000
usbINTR enbl: 0x00000007;
Set the Run/Stop bit and wait for !HC_HALTED:
usbcmd: 0x00080B01; usbsts: 0x00000000
try 0: status 0x00000000
usbcmd: 0x00080B01; usbsts: 0x00000000
PORTSC1: x00002000
Set the PORTPOWER bit for PORTSC1:
PORTSC1: x00003000
Set CONFIGFLAG_FLAG:
usbcmd: 0x00080B01; usbsts: 0x00000004
F PORTSC1: x00001803
usbINTR enbl: 0x00000007;
PORTSC1 set Reset + delay
PORTSC1: x00001101
POSTSC1 reset Reset ..
PORTSC1: x00001101
.. wait ..
PORTSC1: x00001005 --> Port Enabled + Device present !
usbcmd: 0x00080B01; usbsts: 0x00000004 --> Port change Detect
In my undestanding these operations should fire usb interrupt(s) but my irq handler routine is never called:
void USBH_PORT1_IRQHandler(void)
{
HAL_HCD_IRQHandler(&hhcd); //
}
The IRQ is enabled by:
GIC_SetPriority(USBH_PORT1_IRQn, 5);
GIC_EnableIRQ(USBH_PORT1_IRQn);
Is there a reason?
thanks, regards
