- Problem ：Why does USB write speed instability on BF609 ?
- CPU platform ： BF609.
- Detailed description ：
System write data to USB device . Use the same data and writing position is continuous LBA.
Example：The system write data that size of data is 40k and the average time spent is 10ms. But system randomly spent time over 500ms.
Check related data. No DMA of USB error. No NAK packet, no stall packet.
Why does USB write speed instability on BF609 ?