Hello, I have some problems in AM3505A IAAD interrupt. 1.IAAD(Interrupt on Asynchronous Advance Doorbell) interruption doesn't function suddenly any more and after that,
it can't be connected any more with a USB device.
This symptom is in following condition.
Using USB interface of AM3505AZCN, USB device equipment, Open,Close of a device driver is repeated infinitely from application of linux.
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2.When 0x1 is written in SOFTRESET(address 0x48064010) bit at UHH_SYSCONFIG register in once,
the USB function behavior is strange and the function of the USB controller will be.
Confirmed following symptom
- The SOFTRESET bit of UHH_SYSCONFIG hold 0x1 value after writing 0x1 to the this bit.
But in “Technical Reference Manual page 2344“ the SOFTRESET bit is automatically reset to 0.
- After writing 0x1 on the SOFTRESET bit once and rewriting in 0x0 after,
the IAAD interrupt doesn’t occur even if writing 0x10065 value to USBCMD(address 0x48064810) register compulsorily.
