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instable BIOSUSB

 

 We meet a vital issue when using BIOSUSB, it is quite instable, even using the HID device side example.

We test on the BIOS device HID example code on EVM L137, after fast press “shift + scroll” about 100 times or more, usb dead. No data can be received like ”Jungo DEMO!”.

when issue happen , the EP0 status register PERI_CSR0 is 0X0001, means RXPKTRDY = 1,data is in FIFO, but cannot be retreived.

anyone meet same problem?

our biosusb version is 01.00.00, and BIOS version is 5_31_02.