On 2010-12-03 21:39, Rolf Meeser wrote:
If for instance the flash is empty, the device will enter ISP mode automatically. It will activate the PLL, and from then on run with 14.748 MHz. When in this situation you program the flash with the clock parameter set to 4 MHz, the programming pulse will have a width of less than 30% of the required time. Might work, usually will, but is unreliable.
Crazy idea nr 2 - why not set max frequency - this way this pulse will always be long enough (I don't see any reason for problems with longer pulse) - maybe this way this parameter would not be required too?
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