Objective Development Forums 2011-07-03T08:40:45+02:00 https://forums.obdev.at/app.php/feed/topic/5776 2011-07-03T08:40:45+02:00 2011-07-03T08:40:45+02:00 https://forums.obdev.at/viewtopic.php?t=5776&p=18865#p18865 <![CDATA[Re: usbasploader not erasing flash]]> Statistics: Posted by Guest — Sun Jul 03, 2011 8:40 am

]]> 2011-07-03T08:38:39+02:00 2011-07-03T08:38:39+02:00 https://forums.obdev.at/viewtopic.php?t=5776&p=18864#p18864 <![CDATA[Re: usbasploader not erasing flash]]> Statistics: Posted by Guest — Sun Jul 03, 2011 8:38 am

]]> 2011-06-27T16:48:59+02:00 2011-06-27T16:48:59+02:00 https://forums.obdev.at/viewtopic.php?t=5776&p=18815#p18815 <![CDATA[usbasploader not erasing flash]]>
sudo avrdude -c usbasp -p atmega328p -e

avrdude: warning: cannot set sck period. please check for usbasp firmware update.
avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.01s

avrdude: Device signature = 0x1e950f
avrdude: erasing chip
avrdude: warning: cannot set sck period. please check for usbasp firmware update.

avrdude: safemode: Fuses OK

avrdude done. Thank you.


After the alleged erase operation, the application still runs on the chip. I also think this is causing problems during programming as the chip I do not think is being erase before flashing. This is particularly a problem when flashing a program smaller than the one currently loaded.

Does anyone know if there is a fix?

Statistics: Posted by sbm — Mon Jun 27, 2011 4:48 pm

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