Am 13.08.2012 um 20:08 schrieb Ing. Daniel Rozsnyó: > Hi, > I finally get my onboard programming via FT2232HL to work (on previous 5.11 > release, there was a random verification failure, todays svn is ok). Yes, I fixed them ;) > > > Are there any switches to tune the performance of the MPSEE mode? My mcu > runs at 16M, so clock throttling should not be required. > Yes. You can adjust the frequency with -b. The default is 150kHz (I think), so it is quite slow. But it needs to be that slow by default, so that all factory devices work - even with bad cabling ;). The maximum ISP clock with 16MHz crystal should be 4MHz, so the maximum for you should be -b 4000000. Depeding on the quality of your programming cable (lead inductance, ground connection, etc) your mileage may vary. Try starting with -b 1000000. Would you be so kind as to report some performance figures back? > > Note: > I specially connected the USB cable to a motherboard port (as my USB hub > somehow slows down all transfers - e.g. to a card reader). It's probably a USB 1.1 Hub (12MBit/s vs 480 of USB 2.0).
Best regards, Hannes _______________________________________________ avrdude-dev mailing list avrdude-dev@nongnu.org https://lists.nongnu.org/mailman/listinfo/avrdude-dev
