| ??? 12/06/08 09:08 Read: times |
#160661 - Buffer size on the PC device driver Responding to: ???'s previous message |
Increase the RX buffer size (dwInTransferSize) using FT_SetUSBParameters() to 64K bytes (max).
"D2XX Programmer's Guide" http://www.ftdichip.com/Documents...00071).pdf 5.5 FT_SetUSBParameters (p66) Above programmer's guide calls the parameters as "Transfer size", but actually it is the buffer size on the PC device driver, too. As the default of this buffer size is 4K bytes, buffer overflow occurs soon on high-rate high-volume transfer. Tsuneo |
| Topic | Author | Date |
| CCD Reader Project Problem! | 01/01/70 00:00 | |
| Faster PC? | 01/01/70 00:00 | |
| P4 | 01/01/70 00:00 | |
| Re:P4 | 01/01/70 00:00 | |
| Any other USB device on the bus? | 01/01/70 00:00 | |
| Missing data even for true raw rate requirement | 01/01/70 00:00 | |
| Not enough information for a diagnosis | 01/01/70 00:00 | |
Buffer size on the PC device driver | 01/01/70 00:00 |