Martin Thomas's tutorial on flashing with openOCD uses the "working_area" directive in the OpenOCD configuration file. (http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/openocd_intro/index.html) The address value shown in the sample for the AT91SAM7 is incorrect if the "working_area" refers to target's RAM. The address of RAM is at 0x200000 for the SAM7 series, correct? In any event, I do not see any improvement in the time it takes to flash the AT91SAM7X with the working_area configured. (I get about .44K/s flashing an empty flash via a wiggler, or 5.5K/s if the processor has code to get the clocks up to speed before flashing) - Joe
There's no support for speeding up programming of AT91SAM7 devices with an on-chip algorithm like there is for external flashes using the 'cfi' driver. Writing flash at 5.5kb/s using a wiggler aint that bad, so there's little reason to look into using an on-chip algorithm for these devices. You should be able to initialize the PLL using the memory write commands provided by the OpenOCD (mw[bhw]). Regards, Dominic